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26 changes: 26 additions & 0 deletions gazelle/python/generate.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
actualPyBinaryKind := GetActualKindName(pyBinaryKind, args)
actualPyLibraryKind := GetActualKindName(pyLibraryKind, args)
actualPyTestKind := GetActualKindName(pyTestKind, args)
actualPyTestMainKind := GetActualKindName(pyTestMainKind, args)

pythonProjectRoot := cfg.PythonProjectRoot()

Expand DownExpand Up@@ -476,6 +477,31 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
result.Imports = append(result.Imports, pyTest.PrivateAttr(config.GazelleImportsKey))
}

if len(pyTestTargets) > 0 {

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This will make Gazelle generate a pytest main target and multiple py_test targets at the same time on the first run, and then generate another py_test target with the main pointing to the __test__ target in the second run. People will have to run Gazelle twice to reach a stable state. At this state, every test file will be consumed by two py_test targets, so bazel test //some:all will execute all tests twice.

if m := cfg.GetGazelleManifest(); m != nil {
pipName := m.PipDepsRepositoryName
if m.PipRepository != nil {
pipName = m.PipRepository.Name
}
pyPyTestMain := createPyTestMainTarget(pipName)

// Check if a target with the same name we are generating already
// exists, and if it is of a different kind from the one we are
// generating. If so, we have to throw an error since Gazelle won't
// generate it correctly.
if err := ensureNoCollision(args.File, pyPyTestMain.Name(), actualPyTestMainKind); err != nil {
fqTarget := label.New("", args.Rel, pyPyTestMain.Name())
err := fmt.Errorf("failed to generate target %q of kind %q: %w. "+
"Use the '# gazelle:%s' directive to change the naming convention.",
fqTarget.String(), actualPyTestMainKind, err, pythonconfig.TestNamingConvention)
collisionErrors.Add(err)
}

result.Gen = append(result.Gen, pyPyTestMain)
result.Imports = append(result.Imports, pyPyTestMain.PrivateAttr(config.GazelleImportsKey))
}
}

if !collisionErrors.Empty() {
it := collisionErrors.Iterator()
for it.Next() {
Expand Down
16 changes: 13 additions & 3 deletions gazelle/python/kinds.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -19,9 +19,10 @@ import (
)

const (
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyTestMainKind = "py_pytest_main"
)

// Kinds returns a map that maps rule names (kinds) and information on how to
Expand DownExpand Up@@ -79,6 +80,9 @@ var pyKinds = map[string]rule.KindInfo{
"deps": true,
},
},
pyTestMainKind: {
MatchAny: true,
},
}

// Loads returns .bzl files and symbols they define. Every rule generated by
Expand All@@ -97,4 +101,10 @@ var pyLoads = []rule.LoadInfo{
pyTestKind,
},
},
{
Name: "@aspect_rules_py//py:defs.bzl",

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Similarly to how we discussed the gazelle plugin being agnostic to the rule sets, it would be good to have a solution for pytest that is not specific to any specific python ruleset.

Having rules_py specific logic in a rules_python gazelle plugin sounds like our abstractions within the bazel python ecosystem are not working well enough.

We had a similar discussion about rules_pycross and rules_python targets having different naming conventions and decided to make the plugin configurable, but in this case this is overstepping that boundary and starts tailoring the gazelle plugin to very specific implementation logic.

Are there different ways to achieve the same thing?

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We could put the plugin logic in rules_py itself, and then teach users how to compile a gazelle binary that has the plugins listed in the right order. I don't think we want to grow a Go dev-dependency if we can help it though.

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We can make this file a template and allow users to pass extra stuff.

@aignasaignasJul 9, 2024

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I am concerned that adding this special one off for py_pytest_main we are not making orthogonal rulesets that are easy to compose and will require continuous maintenance to tweak things. Since there are other test frameworks (like behave, robot, etc), catering for test frameworks in the gazelle plugin means that we are willing to accept contributions for all, hence I think that solving this differently would be better.

I liked the solution that @linzhp proposed in #2044. It does not add extra test framework specific concepts to the gazelle plugin and it would work with pytest_main if the users are willing to define a macro and use it, so whilst that may require users to write more code, it does mean that the rules_python project stays better scoped.

We have a maintainers meeting every Monday evening US time and we could discuss it there next week if one of you joined?

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A modestly sophisticated user can discover the pattern suggested in #2044 to copy-paste a macro into their codebase and configure a # map_kind directive. I think that's good enough for the use cases that gazelle is trying to address.

We might do something more novice-friendly specifically in Aspect CLI.

Symbols: []string{
pyTestMainKind,
},
},
}
14 changes: 13 additions & 1 deletion gazelle/python/target.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -15,11 +15,13 @@
package python

import (
"path/filepath"

"github.com/bazelbuild/bazel-gazelle/config"
"github.com/bazelbuild/bazel-gazelle/label"
"github.com/bazelbuild/bazel-gazelle/rule"
"github.com/emirpasic/gods/sets/treeset"
godsutils "github.com/emirpasic/gods/utils"
"path/filepath"
)

// targetBuilder builds targets to be generated by Gazelle.
Expand DownExpand Up@@ -171,3 +173,13 @@ func (t *targetBuilder) build() *rule.Rule {
r.SetPrivateAttr(resolvedDepsKey, t.resolvedDeps)
return r
}

func createPyTestMainTarget(pipName string) *rule.Rule {
resolvedDeps := treeset.NewWith(godsutils.StringComparator)
resolvedDeps.Add(label.New(pipName, "pytest", "pytest").String())

r := rule.NewRule(pyTestMainKind, "__test__")
r.SetPrivateAttr(resolvedDepsKey, resolvedDeps)
r.SetPrivateAttr(config.GazelleImportsKey, treeset.NewWith(moduleComparator))
return r
}
6 changes: 6 additions & 0 deletions gazelle/python/testdata/annotation_include_dep/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_binary", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode file

Expand DownExpand Up@@ -51,3 +52,8 @@ py_test(
"//checking/py_test/works:too",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode package

Expand DownExpand Up@@ -27,3 +28,8 @@ py_test(
"//:bagel_from_include_dep_in_module1_test",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
6 changes: 6 additions & 0 deletions gazelle/python/testdata/monorepo/coarse_grained/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,4 @@
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")
load("@rules_python//python:defs.bzl", "py_library", "py_test")

# gazelle:python_extension enabled
Expand DownExpand Up@@ -26,3 +27,8 @@ py_test(
"foo/bar/bar_test.py",
],
)

py_pytest_main(
name = "__test__",
deps = ["@root_pip_deps//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

py_library(
name = "python_target_with_test_in_name",
Expand All@@ -20,3 +21,8 @@ py_test(
srcs = ["test_reality.py"],
deps = [":python_target_with_test_in_name"],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
9 changes: 9 additions & 0 deletions gazelle/pythonconfig/pythonconfig.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -268,6 +268,15 @@ func (c *Config) SetGazelleManifest(gazelleManifest *manifest.Manifest) {
c.gazelleManifest = gazelleManifest
}

func (c *Config) GetGazelleManifest() *manifest.Manifest {
for currentCfg := c; currentCfg != nil; currentCfg = currentCfg.parent {
if currentCfg.gazelleManifest != nil {
return currentCfg.gazelleManifest
}
}
return nil
}

// FindThirdPartyDependency scans the gazelle manifests for the current config
// and the parent configs up to the root finding if it can resolve the module
// name.
Expand Down
, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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26 changes: 26 additions & 0 deletions gazelle/python/generate.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
actualPyBinaryKind := GetActualKindName(pyBinaryKind, args)
actualPyLibraryKind := GetActualKindName(pyLibraryKind, args)
actualPyTestKind := GetActualKindName(pyTestKind, args)
actualPyTestMainKind := GetActualKindName(pyTestMainKind, args)

pythonProjectRoot := cfg.PythonProjectRoot()

Expand DownExpand Up@@ -476,6 +477,31 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
result.Imports = append(result.Imports, pyTest.PrivateAttr(config.GazelleImportsKey))
}

if len(pyTestTargets) > 0 {

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This will make Gazelle generate a pytest main target and multiple py_test targets at the same time on the first run, and then generate another py_test target with the main pointing to the __test__ target in the second run. People will have to run Gazelle twice to reach a stable state. At this state, every test file will be consumed by two py_test targets, so bazel test //some:all will execute all tests twice.

if m := cfg.GetGazelleManifest(); m != nil {
pipName := m.PipDepsRepositoryName
if m.PipRepository != nil {
pipName = m.PipRepository.Name
}
pyPyTestMain := createPyTestMainTarget(pipName)

// Check if a target with the same name we are generating already
// exists, and if it is of a different kind from the one we are
// generating. If so, we have to throw an error since Gazelle won't
// generate it correctly.
if err := ensureNoCollision(args.File, pyPyTestMain.Name(), actualPyTestMainKind); err != nil {
fqTarget := label.New("", args.Rel, pyPyTestMain.Name())
err := fmt.Errorf("failed to generate target %q of kind %q: %w. "+
"Use the '# gazelle:%s' directive to change the naming convention.",
fqTarget.String(), actualPyTestMainKind, err, pythonconfig.TestNamingConvention)
collisionErrors.Add(err)
}

result.Gen = append(result.Gen, pyPyTestMain)
result.Imports = append(result.Imports, pyPyTestMain.PrivateAttr(config.GazelleImportsKey))
}
}

if !collisionErrors.Empty() {
it := collisionErrors.Iterator()
for it.Next() {
Expand Down
16 changes: 13 additions & 3 deletions gazelle/python/kinds.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -19,9 +19,10 @@ import (
)

const (
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyTestMainKind = "py_pytest_main"
)

// Kinds returns a map that maps rule names (kinds) and information on how to
Expand DownExpand Up@@ -79,6 +80,9 @@ var pyKinds = map[string]rule.KindInfo{
"deps": true,
},
},
pyTestMainKind: {
MatchAny: true,
},
}

// Loads returns .bzl files and symbols they define. Every rule generated by
Expand All@@ -97,4 +101,10 @@ var pyLoads = []rule.LoadInfo{
pyTestKind,
},
},
{
Name: "@aspect_rules_py//py:defs.bzl",

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Similarly to how we discussed the gazelle plugin being agnostic to the rule sets, it would be good to have a solution for pytest that is not specific to any specific python ruleset.

Having rules_py specific logic in a rules_python gazelle plugin sounds like our abstractions within the bazel python ecosystem are not working well enough.

We had a similar discussion about rules_pycross and rules_python targets having different naming conventions and decided to make the plugin configurable, but in this case this is overstepping that boundary and starts tailoring the gazelle plugin to very specific implementation logic.

Are there different ways to achieve the same thing?

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We could put the plugin logic in rules_py itself, and then teach users how to compile a gazelle binary that has the plugins listed in the right order. I don't think we want to grow a Go dev-dependency if we can help it though.

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Member

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We can make this file a template and allow users to pass extra stuff.

@aignasaignasJul 9, 2024

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I am concerned that adding this special one off for py_pytest_main we are not making orthogonal rulesets that are easy to compose and will require continuous maintenance to tweak things. Since there are other test frameworks (like behave, robot, etc), catering for test frameworks in the gazelle plugin means that we are willing to accept contributions for all, hence I think that solving this differently would be better.

I liked the solution that @linzhp proposed in #2044. It does not add extra test framework specific concepts to the gazelle plugin and it would work with pytest_main if the users are willing to define a macro and use it, so whilst that may require users to write more code, it does mean that the rules_python project stays better scoped.

We have a maintainers meeting every Monday evening US time and we could discuss it there next week if one of you joined?

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

A modestly sophisticated user can discover the pattern suggested in #2044 to copy-paste a macro into their codebase and configure a # map_kind directive. I think that's good enough for the use cases that gazelle is trying to address.

We might do something more novice-friendly specifically in Aspect CLI.

Symbols: []string{
pyTestMainKind,
},
},
}
14 changes: 13 additions & 1 deletion gazelle/python/target.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -15,11 +15,13 @@
package python

import (
"path/filepath"

"github.com/bazelbuild/bazel-gazelle/config"
"github.com/bazelbuild/bazel-gazelle/label"
"github.com/bazelbuild/bazel-gazelle/rule"
"github.com/emirpasic/gods/sets/treeset"
godsutils "github.com/emirpasic/gods/utils"
"path/filepath"
)

// targetBuilder builds targets to be generated by Gazelle.
Expand DownExpand Up@@ -171,3 +173,13 @@ func (t *targetBuilder) build() *rule.Rule {
r.SetPrivateAttr(resolvedDepsKey, t.resolvedDeps)
return r
}

func createPyTestMainTarget(pipName string) *rule.Rule {
resolvedDeps := treeset.NewWith(godsutils.StringComparator)
resolvedDeps.Add(label.New(pipName, "pytest", "pytest").String())

r := rule.NewRule(pyTestMainKind, "__test__")
r.SetPrivateAttr(resolvedDepsKey, resolvedDeps)
r.SetPrivateAttr(config.GazelleImportsKey, treeset.NewWith(moduleComparator))
return r
}
6 changes: 6 additions & 0 deletions gazelle/python/testdata/annotation_include_dep/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_binary", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode file

Expand DownExpand Up@@ -51,3 +52,8 @@ py_test(
"//checking/py_test/works:too",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode package

Expand DownExpand Up@@ -27,3 +28,8 @@ py_test(
"//:bagel_from_include_dep_in_module1_test",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
6 changes: 6 additions & 0 deletions gazelle/python/testdata/monorepo/coarse_grained/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,4 @@
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")
load("@rules_python//python:defs.bzl", "py_library", "py_test")

# gazelle:python_extension enabled
Expand DownExpand Up@@ -26,3 +27,8 @@ py_test(
"foo/bar/bar_test.py",
],
)

py_pytest_main(
name = "__test__",
deps = ["@root_pip_deps//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

py_library(
name = "python_target_with_test_in_name",
Expand All@@ -20,3 +21,8 @@ py_test(
srcs = ["test_reality.py"],
deps = [":python_target_with_test_in_name"],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
9 changes: 9 additions & 0 deletions gazelle/pythonconfig/pythonconfig.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -268,6 +268,15 @@ func (c *Config) SetGazelleManifest(gazelleManifest *manifest.Manifest) {
c.gazelleManifest = gazelleManifest
}

func (c *Config) GetGazelleManifest() *manifest.Manifest {
for currentCfg := c; currentCfg != nil; currentCfg = currentCfg.parent {
if currentCfg.gazelleManifest != nil {
return currentCfg.gazelleManifest
}
}
return nil
}

// FindThirdPartyDependency scans the gazelle manifests for the current config
// and the parent configs up to the root finding if it can resolve the module
// name.
Expand Down
, 'i'); if (__m === '*' || __re.test(location.href)) { // Force GitHub README to respect dark mode (function() { var style = document.createElement('style'); style.textContent = ' .markdown-body { color-scheme: dark light; } .markdown-body pre { background: #161b22 !important; } .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; } .markdown-body table th, .markdown-body table td { border-color: #30363d !important; } .markdown-body img { background: #0d1117; } .markdown-body blockquote { border-left-color: #8b949e; } .markdown-body hr { border-color: #30363d; } '; document.head.appendChild(style); })(); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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26 changes: 26 additions & 0 deletions gazelle/python/generate.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
actualPyBinaryKind := GetActualKindName(pyBinaryKind, args)
actualPyLibraryKind := GetActualKindName(pyLibraryKind, args)
actualPyTestKind := GetActualKindName(pyTestKind, args)
actualPyTestMainKind := GetActualKindName(pyTestMainKind, args)

pythonProjectRoot := cfg.PythonProjectRoot()

Expand DownExpand Up@@ -476,6 +477,31 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
result.Imports = append(result.Imports, pyTest.PrivateAttr(config.GazelleImportsKey))
}

if len(pyTestTargets) > 0 {

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This will make Gazelle generate a pytest main target and multiple py_test targets at the same time on the first run, and then generate another py_test target with the main pointing to the __test__ target in the second run. People will have to run Gazelle twice to reach a stable state. At this state, every test file will be consumed by two py_test targets, so bazel test //some:all will execute all tests twice.

if m := cfg.GetGazelleManifest(); m != nil {
pipName := m.PipDepsRepositoryName
if m.PipRepository != nil {
pipName = m.PipRepository.Name
}
pyPyTestMain := createPyTestMainTarget(pipName)

// Check if a target with the same name we are generating already
// exists, and if it is of a different kind from the one we are
// generating. If so, we have to throw an error since Gazelle won't
// generate it correctly.
if err := ensureNoCollision(args.File, pyPyTestMain.Name(), actualPyTestMainKind); err != nil {
fqTarget := label.New("", args.Rel, pyPyTestMain.Name())
err := fmt.Errorf("failed to generate target %q of kind %q: %w. "+
"Use the '# gazelle:%s' directive to change the naming convention.",
fqTarget.String(), actualPyTestMainKind, err, pythonconfig.TestNamingConvention)
collisionErrors.Add(err)
}

result.Gen = append(result.Gen, pyPyTestMain)
result.Imports = append(result.Imports, pyPyTestMain.PrivateAttr(config.GazelleImportsKey))
}
}

if !collisionErrors.Empty() {
it := collisionErrors.Iterator()
for it.Next() {
Expand Down
16 changes: 13 additions & 3 deletions gazelle/python/kinds.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -19,9 +19,10 @@ import (
)

const (
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyTestMainKind = "py_pytest_main"
)

// Kinds returns a map that maps rule names (kinds) and information on how to
Expand DownExpand Up@@ -79,6 +80,9 @@ var pyKinds = map[string]rule.KindInfo{
"deps": true,
},
},
pyTestMainKind: {
MatchAny: true,
},
}

// Loads returns .bzl files and symbols they define. Every rule generated by
Expand All@@ -97,4 +101,10 @@ var pyLoads = []rule.LoadInfo{
pyTestKind,
},
},
{
Name: "@aspect_rules_py//py:defs.bzl",

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Similarly to how we discussed the gazelle plugin being agnostic to the rule sets, it would be good to have a solution for pytest that is not specific to any specific python ruleset.

Having rules_py specific logic in a rules_python gazelle plugin sounds like our abstractions within the bazel python ecosystem are not working well enough.

We had a similar discussion about rules_pycross and rules_python targets having different naming conventions and decided to make the plugin configurable, but in this case this is overstepping that boundary and starts tailoring the gazelle plugin to very specific implementation logic.

Are there different ways to achieve the same thing?

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We could put the plugin logic in rules_py itself, and then teach users how to compile a gazelle binary that has the plugins listed in the right order. I don't think we want to grow a Go dev-dependency if we can help it though.

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We can make this file a template and allow users to pass extra stuff.

@aignasaignasJul 9, 2024

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I am concerned that adding this special one off for py_pytest_main we are not making orthogonal rulesets that are easy to compose and will require continuous maintenance to tweak things. Since there are other test frameworks (like behave, robot, etc), catering for test frameworks in the gazelle plugin means that we are willing to accept contributions for all, hence I think that solving this differently would be better.

I liked the solution that @linzhp proposed in #2044. It does not add extra test framework specific concepts to the gazelle plugin and it would work with pytest_main if the users are willing to define a macro and use it, so whilst that may require users to write more code, it does mean that the rules_python project stays better scoped.

We have a maintainers meeting every Monday evening US time and we could discuss it there next week if one of you joined?

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A modestly sophisticated user can discover the pattern suggested in #2044 to copy-paste a macro into their codebase and configure a # map_kind directive. I think that's good enough for the use cases that gazelle is trying to address.

We might do something more novice-friendly specifically in Aspect CLI.

Symbols: []string{
pyTestMainKind,
},
},
}
14 changes: 13 additions & 1 deletion gazelle/python/target.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -15,11 +15,13 @@
package python

import (
"path/filepath"

"github.com/bazelbuild/bazel-gazelle/config"
"github.com/bazelbuild/bazel-gazelle/label"
"github.com/bazelbuild/bazel-gazelle/rule"
"github.com/emirpasic/gods/sets/treeset"
godsutils "github.com/emirpasic/gods/utils"
"path/filepath"
)

// targetBuilder builds targets to be generated by Gazelle.
Expand DownExpand Up@@ -171,3 +173,13 @@ func (t *targetBuilder) build() *rule.Rule {
r.SetPrivateAttr(resolvedDepsKey, t.resolvedDeps)
return r
}

func createPyTestMainTarget(pipName string) *rule.Rule {
resolvedDeps := treeset.NewWith(godsutils.StringComparator)
resolvedDeps.Add(label.New(pipName, "pytest", "pytest").String())

r := rule.NewRule(pyTestMainKind, "__test__")
r.SetPrivateAttr(resolvedDepsKey, resolvedDeps)
r.SetPrivateAttr(config.GazelleImportsKey, treeset.NewWith(moduleComparator))
return r
}
6 changes: 6 additions & 0 deletions gazelle/python/testdata/annotation_include_dep/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_binary", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode file

Expand DownExpand Up@@ -51,3 +52,8 @@ py_test(
"//checking/py_test/works:too",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode package

Expand DownExpand Up@@ -27,3 +28,8 @@ py_test(
"//:bagel_from_include_dep_in_module1_test",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
6 changes: 6 additions & 0 deletions gazelle/python/testdata/monorepo/coarse_grained/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,4 @@
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")
load("@rules_python//python:defs.bzl", "py_library", "py_test")

# gazelle:python_extension enabled
Expand DownExpand Up@@ -26,3 +27,8 @@ py_test(
"foo/bar/bar_test.py",
],
)

py_pytest_main(
name = "__test__",
deps = ["@root_pip_deps//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

py_library(
name = "python_target_with_test_in_name",
Expand All@@ -20,3 +21,8 @@ py_test(
srcs = ["test_reality.py"],
deps = [":python_target_with_test_in_name"],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
9 changes: 9 additions & 0 deletions gazelle/pythonconfig/pythonconfig.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -268,6 +268,15 @@ func (c *Config) SetGazelleManifest(gazelleManifest *manifest.Manifest) {
c.gazelleManifest = gazelleManifest
}

func (c *Config) GetGazelleManifest() *manifest.Manifest {
for currentCfg := c; currentCfg != nil; currentCfg = currentCfg.parent {
if currentCfg.gazelleManifest != nil {
return currentCfg.gazelleManifest
}
}
return nil
}

// FindThirdPartyDependency scans the gazelle manifests for the current config
// and the parent configs up to the root finding if it can resolve the module
// name.
Expand Down
, 'i'); if (__m === '*' || __re.test(location.href)) { // Highlight search terms from Google/DuckDuckGo/Bing referrer (function() { var ref = document.referrer; var terms = []; if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) { var url = new URL(ref); var q = url.searchParams.get('q') || url.searchParams.get('p'); if (q) { terms = q.split(/\s+/).filter(function(t) { return t.length > 2; }); } } if (terms.length === 0) return; var style = document.createElement('style'); style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }'; document.head.appendChild(style); function highlight(node) { if (node.nodeType === 3) { // text node var text = node.textContent; var found = false; terms.forEach(function(term) { var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi'); if (regex.test(text)) { found = true; var frag = document.createDocumentFragment(); var parts = text.split(regex); parts.forEach(function(part, i) { if (i % 2 === 0) { frag.appendChild(document.createTextNode(part)); } else { var span = document.createElement('span'); span.className = 'userscript-highlight'; span.textContent = part; frag.appendChild(span); } }); node.parentNode.replaceChild(frag, node); } }); } else if (node.nodeType === 1 && node.childNodes) { // element var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT']; if (!skipTags.includes(node.tagName)) { Array.from(node.childNodes).forEach(highlight); } } } highlight(document.body); // Re-highlight on dynamic content var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1 || node.nodeType === 3) highlight(node); }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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26 changes: 26 additions & 0 deletions gazelle/python/generate.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
actualPyBinaryKind := GetActualKindName(pyBinaryKind, args)
actualPyLibraryKind := GetActualKindName(pyLibraryKind, args)
actualPyTestKind := GetActualKindName(pyTestKind, args)
actualPyTestMainKind := GetActualKindName(pyTestMainKind, args)

pythonProjectRoot := cfg.PythonProjectRoot()

Expand DownExpand Up@@ -476,6 +477,31 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
result.Imports = append(result.Imports, pyTest.PrivateAttr(config.GazelleImportsKey))
}

if len(pyTestTargets) > 0 {

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This will make Gazelle generate a pytest main target and multiple py_test targets at the same time on the first run, and then generate another py_test target with the main pointing to the __test__ target in the second run. People will have to run Gazelle twice to reach a stable state. At this state, every test file will be consumed by two py_test targets, so bazel test //some:all will execute all tests twice.

if m := cfg.GetGazelleManifest(); m != nil {
pipName := m.PipDepsRepositoryName
if m.PipRepository != nil {
pipName = m.PipRepository.Name
}
pyPyTestMain := createPyTestMainTarget(pipName)

// Check if a target with the same name we are generating already
// exists, and if it is of a different kind from the one we are
// generating. If so, we have to throw an error since Gazelle won't
// generate it correctly.
if err := ensureNoCollision(args.File, pyPyTestMain.Name(), actualPyTestMainKind); err != nil {
fqTarget := label.New("", args.Rel, pyPyTestMain.Name())
err := fmt.Errorf("failed to generate target %q of kind %q: %w. "+
"Use the '# gazelle:%s' directive to change the naming convention.",
fqTarget.String(), actualPyTestMainKind, err, pythonconfig.TestNamingConvention)
collisionErrors.Add(err)
}

result.Gen = append(result.Gen, pyPyTestMain)
result.Imports = append(result.Imports, pyPyTestMain.PrivateAttr(config.GazelleImportsKey))
}
}

if !collisionErrors.Empty() {
it := collisionErrors.Iterator()
for it.Next() {
Expand Down
16 changes: 13 additions & 3 deletions gazelle/python/kinds.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -19,9 +19,10 @@ import (
)

const (
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyTestMainKind = "py_pytest_main"
)

// Kinds returns a map that maps rule names (kinds) and information on how to
Expand DownExpand Up@@ -79,6 +80,9 @@ var pyKinds = map[string]rule.KindInfo{
"deps": true,
},
},
pyTestMainKind: {
MatchAny: true,
},
}

// Loads returns .bzl files and symbols they define. Every rule generated by
Expand All@@ -97,4 +101,10 @@ var pyLoads = []rule.LoadInfo{
pyTestKind,
},
},
{
Name: "@aspect_rules_py//py:defs.bzl",

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Similarly to how we discussed the gazelle plugin being agnostic to the rule sets, it would be good to have a solution for pytest that is not specific to any specific python ruleset.

Having rules_py specific logic in a rules_python gazelle plugin sounds like our abstractions within the bazel python ecosystem are not working well enough.

We had a similar discussion about rules_pycross and rules_python targets having different naming conventions and decided to make the plugin configurable, but in this case this is overstepping that boundary and starts tailoring the gazelle plugin to very specific implementation logic.

Are there different ways to achieve the same thing?

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We could put the plugin logic in rules_py itself, and then teach users how to compile a gazelle binary that has the plugins listed in the right order. I don't think we want to grow a Go dev-dependency if we can help it though.

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We can make this file a template and allow users to pass extra stuff.

@aignasaignasJul 9, 2024

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I am concerned that adding this special one off for py_pytest_main we are not making orthogonal rulesets that are easy to compose and will require continuous maintenance to tweak things. Since there are other test frameworks (like behave, robot, etc), catering for test frameworks in the gazelle plugin means that we are willing to accept contributions for all, hence I think that solving this differently would be better.

I liked the solution that @linzhp proposed in #2044. It does not add extra test framework specific concepts to the gazelle plugin and it would work with pytest_main if the users are willing to define a macro and use it, so whilst that may require users to write more code, it does mean that the rules_python project stays better scoped.

We have a maintainers meeting every Monday evening US time and we could discuss it there next week if one of you joined?

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Contributor

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A modestly sophisticated user can discover the pattern suggested in #2044 to copy-paste a macro into their codebase and configure a # map_kind directive. I think that's good enough for the use cases that gazelle is trying to address.

We might do something more novice-friendly specifically in Aspect CLI.

Symbols: []string{
pyTestMainKind,
},
},
}
14 changes: 13 additions & 1 deletion gazelle/python/target.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -15,11 +15,13 @@
package python

import (
"path/filepath"

"github.com/bazelbuild/bazel-gazelle/config"
"github.com/bazelbuild/bazel-gazelle/label"
"github.com/bazelbuild/bazel-gazelle/rule"
"github.com/emirpasic/gods/sets/treeset"
godsutils "github.com/emirpasic/gods/utils"
"path/filepath"
)

// targetBuilder builds targets to be generated by Gazelle.
Expand DownExpand Up@@ -171,3 +173,13 @@ func (t *targetBuilder) build() *rule.Rule {
r.SetPrivateAttr(resolvedDepsKey, t.resolvedDeps)
return r
}

func createPyTestMainTarget(pipName string) *rule.Rule {
resolvedDeps := treeset.NewWith(godsutils.StringComparator)
resolvedDeps.Add(label.New(pipName, "pytest", "pytest").String())

r := rule.NewRule(pyTestMainKind, "__test__")
r.SetPrivateAttr(resolvedDepsKey, resolvedDeps)
r.SetPrivateAttr(config.GazelleImportsKey, treeset.NewWith(moduleComparator))
return r
}
6 changes: 6 additions & 0 deletions gazelle/python/testdata/annotation_include_dep/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_binary", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode file

Expand DownExpand Up@@ -51,3 +52,8 @@ py_test(
"//checking/py_test/works:too",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode package

Expand DownExpand Up@@ -27,3 +28,8 @@ py_test(
"//:bagel_from_include_dep_in_module1_test",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
6 changes: 6 additions & 0 deletions gazelle/python/testdata/monorepo/coarse_grained/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,4 @@
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")
load("@rules_python//python:defs.bzl", "py_library", "py_test")

# gazelle:python_extension enabled
Expand DownExpand Up@@ -26,3 +27,8 @@ py_test(
"foo/bar/bar_test.py",
],
)

py_pytest_main(
name = "__test__",
deps = ["@root_pip_deps//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

py_library(
name = "python_target_with_test_in_name",
Expand All@@ -20,3 +21,8 @@ py_test(
srcs = ["test_reality.py"],
deps = [":python_target_with_test_in_name"],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
9 changes: 9 additions & 0 deletions gazelle/pythonconfig/pythonconfig.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -268,6 +268,15 @@ func (c *Config) SetGazelleManifest(gazelleManifest *manifest.Manifest) {
c.gazelleManifest = gazelleManifest
}

func (c *Config) GetGazelleManifest() *manifest.Manifest {
for currentCfg := c; currentCfg != nil; currentCfg = currentCfg.parent {
if currentCfg.gazelleManifest != nil {
return currentCfg.gazelleManifest
}
}
return nil
}

// FindThirdPartyDependency scans the gazelle manifests for the current config
// and the parent configs up to the root finding if it can resolve the module
// name.
Expand Down
, 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
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26 changes: 26 additions & 0 deletions gazelle/python/generate.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
actualPyBinaryKind := GetActualKindName(pyBinaryKind, args)
actualPyLibraryKind := GetActualKindName(pyLibraryKind, args)
actualPyTestKind := GetActualKindName(pyTestKind, args)
actualPyTestMainKind := GetActualKindName(pyTestMainKind, args)

pythonProjectRoot := cfg.PythonProjectRoot()

Expand DownExpand Up@@ -476,6 +477,31 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
result.Imports = append(result.Imports, pyTest.PrivateAttr(config.GazelleImportsKey))
}

if len(pyTestTargets) > 0 {

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This will make Gazelle generate a pytest main target and multiple py_test targets at the same time on the first run, and then generate another py_test target with the main pointing to the __test__ target in the second run. People will have to run Gazelle twice to reach a stable state. At this state, every test file will be consumed by two py_test targets, so bazel test //some:all will execute all tests twice.

if m := cfg.GetGazelleManifest(); m != nil {
pipName := m.PipDepsRepositoryName
if m.PipRepository != nil {
pipName = m.PipRepository.Name
}
pyPyTestMain := createPyTestMainTarget(pipName)

// Check if a target with the same name we are generating already
// exists, and if it is of a different kind from the one we are
// generating. If so, we have to throw an error since Gazelle won't
// generate it correctly.
if err := ensureNoCollision(args.File, pyPyTestMain.Name(), actualPyTestMainKind); err != nil {
fqTarget := label.New("", args.Rel, pyPyTestMain.Name())
err := fmt.Errorf("failed to generate target %q of kind %q: %w. "+
"Use the '# gazelle:%s' directive to change the naming convention.",
fqTarget.String(), actualPyTestMainKind, err, pythonconfig.TestNamingConvention)
collisionErrors.Add(err)
}

result.Gen = append(result.Gen, pyPyTestMain)
result.Imports = append(result.Imports, pyPyTestMain.PrivateAttr(config.GazelleImportsKey))
}
}

if !collisionErrors.Empty() {
it := collisionErrors.Iterator()
for it.Next() {
Expand Down
16 changes: 13 additions & 3 deletions gazelle/python/kinds.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -19,9 +19,10 @@ import (
)

const (
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyTestMainKind = "py_pytest_main"
)

// Kinds returns a map that maps rule names (kinds) and information on how to
Expand DownExpand Up@@ -79,6 +80,9 @@ var pyKinds = map[string]rule.KindInfo{
"deps": true,
},
},
pyTestMainKind: {
MatchAny: true,
},
}

// Loads returns .bzl files and symbols they define. Every rule generated by
Expand All@@ -97,4 +101,10 @@ var pyLoads = []rule.LoadInfo{
pyTestKind,
},
},
{
Name: "@aspect_rules_py//py:defs.bzl",

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Similarly to how we discussed the gazelle plugin being agnostic to the rule sets, it would be good to have a solution for pytest that is not specific to any specific python ruleset.

Having rules_py specific logic in a rules_python gazelle plugin sounds like our abstractions within the bazel python ecosystem are not working well enough.

We had a similar discussion about rules_pycross and rules_python targets having different naming conventions and decided to make the plugin configurable, but in this case this is overstepping that boundary and starts tailoring the gazelle plugin to very specific implementation logic.

Are there different ways to achieve the same thing?

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We could put the plugin logic in rules_py itself, and then teach users how to compile a gazelle binary that has the plugins listed in the right order. I don't think we want to grow a Go dev-dependency if we can help it though.

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We can make this file a template and allow users to pass extra stuff.

@aignasaignasJul 9, 2024

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I am concerned that adding this special one off for py_pytest_main we are not making orthogonal rulesets that are easy to compose and will require continuous maintenance to tweak things. Since there are other test frameworks (like behave, robot, etc), catering for test frameworks in the gazelle plugin means that we are willing to accept contributions for all, hence I think that solving this differently would be better.

I liked the solution that @linzhp proposed in #2044. It does not add extra test framework specific concepts to the gazelle plugin and it would work with pytest_main if the users are willing to define a macro and use it, so whilst that may require users to write more code, it does mean that the rules_python project stays better scoped.

We have a maintainers meeting every Monday evening US time and we could discuss it there next week if one of you joined?

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A modestly sophisticated user can discover the pattern suggested in #2044 to copy-paste a macro into their codebase and configure a # map_kind directive. I think that's good enough for the use cases that gazelle is trying to address.

We might do something more novice-friendly specifically in Aspect CLI.

Symbols: []string{
pyTestMainKind,
},
},
}
14 changes: 13 additions & 1 deletion gazelle/python/target.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -15,11 +15,13 @@
package python

import (
"path/filepath"

"github.com/bazelbuild/bazel-gazelle/config"
"github.com/bazelbuild/bazel-gazelle/label"
"github.com/bazelbuild/bazel-gazelle/rule"
"github.com/emirpasic/gods/sets/treeset"
godsutils "github.com/emirpasic/gods/utils"
"path/filepath"
)

// targetBuilder builds targets to be generated by Gazelle.
Expand DownExpand Up@@ -171,3 +173,13 @@ func (t *targetBuilder) build() *rule.Rule {
r.SetPrivateAttr(resolvedDepsKey, t.resolvedDeps)
return r
}

func createPyTestMainTarget(pipName string) *rule.Rule {
resolvedDeps := treeset.NewWith(godsutils.StringComparator)
resolvedDeps.Add(label.New(pipName, "pytest", "pytest").String())

r := rule.NewRule(pyTestMainKind, "__test__")
r.SetPrivateAttr(resolvedDepsKey, resolvedDeps)
r.SetPrivateAttr(config.GazelleImportsKey, treeset.NewWith(moduleComparator))
return r
}
6 changes: 6 additions & 0 deletions gazelle/python/testdata/annotation_include_dep/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_binary", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode file

Expand DownExpand Up@@ -51,3 +52,8 @@ py_test(
"//checking/py_test/works:too",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode package

Expand DownExpand Up@@ -27,3 +28,8 @@ py_test(
"//:bagel_from_include_dep_in_module1_test",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
6 changes: 6 additions & 0 deletions gazelle/python/testdata/monorepo/coarse_grained/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,4 @@
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")
load("@rules_python//python:defs.bzl", "py_library", "py_test")

# gazelle:python_extension enabled
Expand DownExpand Up@@ -26,3 +27,8 @@ py_test(
"foo/bar/bar_test.py",
],
)

py_pytest_main(
name = "__test__",
deps = ["@root_pip_deps//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

py_library(
name = "python_target_with_test_in_name",
Expand All@@ -20,3 +21,8 @@ py_test(
srcs = ["test_reality.py"],
deps = [":python_target_with_test_in_name"],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
9 changes: 9 additions & 0 deletions gazelle/pythonconfig/pythonconfig.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -268,6 +268,15 @@ func (c *Config) SetGazelleManifest(gazelleManifest *manifest.Manifest) {
c.gazelleManifest = gazelleManifest
}

func (c *Config) GetGazelleManifest() *manifest.Manifest {
for currentCfg := c; currentCfg != nil; currentCfg = currentCfg.parent {
if currentCfg.gazelleManifest != nil {
return currentCfg.gazelleManifest
}
}
return nil
}

// FindThirdPartyDependency scans the gazelle manifests for the current config
// and the parent configs up to the root finding if it can resolve the module
// name.
Expand Down
, 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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26 changes: 26 additions & 0 deletions gazelle/python/generate.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
actualPyBinaryKind := GetActualKindName(pyBinaryKind, args)
actualPyLibraryKind := GetActualKindName(pyLibraryKind, args)
actualPyTestKind := GetActualKindName(pyTestKind, args)
actualPyTestMainKind := GetActualKindName(pyTestMainKind, args)

pythonProjectRoot := cfg.PythonProjectRoot()

Expand DownExpand Up@@ -476,6 +477,31 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
result.Imports = append(result.Imports, pyTest.PrivateAttr(config.GazelleImportsKey))
}

if len(pyTestTargets) > 0 {

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This will make Gazelle generate a pytest main target and multiple py_test targets at the same time on the first run, and then generate another py_test target with the main pointing to the __test__ target in the second run. People will have to run Gazelle twice to reach a stable state. At this state, every test file will be consumed by two py_test targets, so bazel test //some:all will execute all tests twice.

if m := cfg.GetGazelleManifest(); m != nil {
pipName := m.PipDepsRepositoryName
if m.PipRepository != nil {
pipName = m.PipRepository.Name
}
pyPyTestMain := createPyTestMainTarget(pipName)

// Check if a target with the same name we are generating already
// exists, and if it is of a different kind from the one we are
// generating. If so, we have to throw an error since Gazelle won't
// generate it correctly.
if err := ensureNoCollision(args.File, pyPyTestMain.Name(), actualPyTestMainKind); err != nil {
fqTarget := label.New("", args.Rel, pyPyTestMain.Name())
err := fmt.Errorf("failed to generate target %q of kind %q: %w. "+
"Use the '# gazelle:%s' directive to change the naming convention.",
fqTarget.String(), actualPyTestMainKind, err, pythonconfig.TestNamingConvention)
collisionErrors.Add(err)
}

result.Gen = append(result.Gen, pyPyTestMain)
result.Imports = append(result.Imports, pyPyTestMain.PrivateAttr(config.GazelleImportsKey))
}
}

if !collisionErrors.Empty() {
it := collisionErrors.Iterator()
for it.Next() {
Expand Down
16 changes: 13 additions & 3 deletions gazelle/python/kinds.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -19,9 +19,10 @@ import (
)

const (
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyTestMainKind = "py_pytest_main"
)

// Kinds returns a map that maps rule names (kinds) and information on how to
Expand DownExpand Up@@ -79,6 +80,9 @@ var pyKinds = map[string]rule.KindInfo{
"deps": true,
},
},
pyTestMainKind: {
MatchAny: true,
},
}

// Loads returns .bzl files and symbols they define. Every rule generated by
Expand All@@ -97,4 +101,10 @@ var pyLoads = []rule.LoadInfo{
pyTestKind,
},
},
{
Name: "@aspect_rules_py//py:defs.bzl",

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Similarly to how we discussed the gazelle plugin being agnostic to the rule sets, it would be good to have a solution for pytest that is not specific to any specific python ruleset.

Having rules_py specific logic in a rules_python gazelle plugin sounds like our abstractions within the bazel python ecosystem are not working well enough.

We had a similar discussion about rules_pycross and rules_python targets having different naming conventions and decided to make the plugin configurable, but in this case this is overstepping that boundary and starts tailoring the gazelle plugin to very specific implementation logic.

Are there different ways to achieve the same thing?

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We could put the plugin logic in rules_py itself, and then teach users how to compile a gazelle binary that has the plugins listed in the right order. I don't think we want to grow a Go dev-dependency if we can help it though.

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We can make this file a template and allow users to pass extra stuff.

@aignasaignasJul 9, 2024

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I am concerned that adding this special one off for py_pytest_main we are not making orthogonal rulesets that are easy to compose and will require continuous maintenance to tweak things. Since there are other test frameworks (like behave, robot, etc), catering for test frameworks in the gazelle plugin means that we are willing to accept contributions for all, hence I think that solving this differently would be better.

I liked the solution that @linzhp proposed in #2044. It does not add extra test framework specific concepts to the gazelle plugin and it would work with pytest_main if the users are willing to define a macro and use it, so whilst that may require users to write more code, it does mean that the rules_python project stays better scoped.

We have a maintainers meeting every Monday evening US time and we could discuss it there next week if one of you joined?

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A modestly sophisticated user can discover the pattern suggested in #2044 to copy-paste a macro into their codebase and configure a # map_kind directive. I think that's good enough for the use cases that gazelle is trying to address.

We might do something more novice-friendly specifically in Aspect CLI.

Symbols: []string{
pyTestMainKind,
},
},
}
14 changes: 13 additions & 1 deletion gazelle/python/target.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -15,11 +15,13 @@
package python

import (
"path/filepath"

"github.com/bazelbuild/bazel-gazelle/config"
"github.com/bazelbuild/bazel-gazelle/label"
"github.com/bazelbuild/bazel-gazelle/rule"
"github.com/emirpasic/gods/sets/treeset"
godsutils "github.com/emirpasic/gods/utils"
"path/filepath"
)

// targetBuilder builds targets to be generated by Gazelle.
Expand DownExpand Up@@ -171,3 +173,13 @@ func (t *targetBuilder) build() *rule.Rule {
r.SetPrivateAttr(resolvedDepsKey, t.resolvedDeps)
return r
}

func createPyTestMainTarget(pipName string) *rule.Rule {
resolvedDeps := treeset.NewWith(godsutils.StringComparator)
resolvedDeps.Add(label.New(pipName, "pytest", "pytest").String())

r := rule.NewRule(pyTestMainKind, "__test__")
r.SetPrivateAttr(resolvedDepsKey, resolvedDeps)
r.SetPrivateAttr(config.GazelleImportsKey, treeset.NewWith(moduleComparator))
return r
}
6 changes: 6 additions & 0 deletions gazelle/python/testdata/annotation_include_dep/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_binary", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode file

Expand DownExpand Up@@ -51,3 +52,8 @@ py_test(
"//checking/py_test/works:too",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode package

Expand DownExpand Up@@ -27,3 +28,8 @@ py_test(
"//:bagel_from_include_dep_in_module1_test",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
6 changes: 6 additions & 0 deletions gazelle/python/testdata/monorepo/coarse_grained/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,4 @@
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")
load("@rules_python//python:defs.bzl", "py_library", "py_test")

# gazelle:python_extension enabled
Expand DownExpand Up@@ -26,3 +27,8 @@ py_test(
"foo/bar/bar_test.py",
],
)

py_pytest_main(
name = "__test__",
deps = ["@root_pip_deps//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

py_library(
name = "python_target_with_test_in_name",
Expand All@@ -20,3 +21,8 @@ py_test(
srcs = ["test_reality.py"],
deps = [":python_target_with_test_in_name"],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
9 changes: 9 additions & 0 deletions gazelle/pythonconfig/pythonconfig.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -268,6 +268,15 @@ func (c *Config) SetGazelleManifest(gazelleManifest *manifest.Manifest) {
c.gazelleManifest = gazelleManifest
}

func (c *Config) GetGazelleManifest() *manifest.Manifest {
for currentCfg := c; currentCfg != nil; currentCfg = currentCfg.parent {
if currentCfg.gazelleManifest != nil {
return currentCfg.gazelleManifest
}
}
return nil
}

// FindThirdPartyDependency scans the gazelle manifests for the current config
// and the parent configs up to the root finding if it can resolve the module
// name.
Expand Down
, 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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26 changes: 26 additions & 0 deletions gazelle/python/generate.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
actualPyBinaryKind := GetActualKindName(pyBinaryKind, args)
actualPyLibraryKind := GetActualKindName(pyLibraryKind, args)
actualPyTestKind := GetActualKindName(pyTestKind, args)
actualPyTestMainKind := GetActualKindName(pyTestMainKind, args)

pythonProjectRoot := cfg.PythonProjectRoot()

Expand DownExpand Up@@ -476,6 +477,31 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
result.Imports = append(result.Imports, pyTest.PrivateAttr(config.GazelleImportsKey))
}

if len(pyTestTargets) > 0 {

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This will make Gazelle generate a pytest main target and multiple py_test targets at the same time on the first run, and then generate another py_test target with the main pointing to the __test__ target in the second run. People will have to run Gazelle twice to reach a stable state. At this state, every test file will be consumed by two py_test targets, so bazel test //some:all will execute all tests twice.

if m := cfg.GetGazelleManifest(); m != nil {
pipName := m.PipDepsRepositoryName
if m.PipRepository != nil {
pipName = m.PipRepository.Name
}
pyPyTestMain := createPyTestMainTarget(pipName)

// Check if a target with the same name we are generating already
// exists, and if it is of a different kind from the one we are
// generating. If so, we have to throw an error since Gazelle won't
// generate it correctly.
if err := ensureNoCollision(args.File, pyPyTestMain.Name(), actualPyTestMainKind); err != nil {
fqTarget := label.New("", args.Rel, pyPyTestMain.Name())
err := fmt.Errorf("failed to generate target %q of kind %q: %w. "+
"Use the '# gazelle:%s' directive to change the naming convention.",
fqTarget.String(), actualPyTestMainKind, err, pythonconfig.TestNamingConvention)
collisionErrors.Add(err)
}

result.Gen = append(result.Gen, pyPyTestMain)
result.Imports = append(result.Imports, pyPyTestMain.PrivateAttr(config.GazelleImportsKey))
}
}

if !collisionErrors.Empty() {
it := collisionErrors.Iterator()
for it.Next() {
Expand Down
16 changes: 13 additions & 3 deletions gazelle/python/kinds.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -19,9 +19,10 @@ import (
)

const (
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyTestMainKind = "py_pytest_main"
)

// Kinds returns a map that maps rule names (kinds) and information on how to
Expand DownExpand Up@@ -79,6 +80,9 @@ var pyKinds = map[string]rule.KindInfo{
"deps": true,
},
},
pyTestMainKind: {
MatchAny: true,
},
}

// Loads returns .bzl files and symbols they define. Every rule generated by
Expand All@@ -97,4 +101,10 @@ var pyLoads = []rule.LoadInfo{
pyTestKind,
},
},
{
Name: "@aspect_rules_py//py:defs.bzl",

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Similarly to how we discussed the gazelle plugin being agnostic to the rule sets, it would be good to have a solution for pytest that is not specific to any specific python ruleset.

Having rules_py specific logic in a rules_python gazelle plugin sounds like our abstractions within the bazel python ecosystem are not working well enough.

We had a similar discussion about rules_pycross and rules_python targets having different naming conventions and decided to make the plugin configurable, but in this case this is overstepping that boundary and starts tailoring the gazelle plugin to very specific implementation logic.

Are there different ways to achieve the same thing?

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We could put the plugin logic in rules_py itself, and then teach users how to compile a gazelle binary that has the plugins listed in the right order. I don't think we want to grow a Go dev-dependency if we can help it though.

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We can make this file a template and allow users to pass extra stuff.

@aignasaignasJul 9, 2024

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I am concerned that adding this special one off for py_pytest_main we are not making orthogonal rulesets that are easy to compose and will require continuous maintenance to tweak things. Since there are other test frameworks (like behave, robot, etc), catering for test frameworks in the gazelle plugin means that we are willing to accept contributions for all, hence I think that solving this differently would be better.

I liked the solution that @linzhp proposed in #2044. It does not add extra test framework specific concepts to the gazelle plugin and it would work with pytest_main if the users are willing to define a macro and use it, so whilst that may require users to write more code, it does mean that the rules_python project stays better scoped.

We have a maintainers meeting every Monday evening US time and we could discuss it there next week if one of you joined?

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Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

A modestly sophisticated user can discover the pattern suggested in #2044 to copy-paste a macro into their codebase and configure a # map_kind directive. I think that's good enough for the use cases that gazelle is trying to address.

We might do something more novice-friendly specifically in Aspect CLI.

Symbols: []string{
pyTestMainKind,
},
},
}
14 changes: 13 additions & 1 deletion gazelle/python/target.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -15,11 +15,13 @@
package python

import (
"path/filepath"

"github.com/bazelbuild/bazel-gazelle/config"
"github.com/bazelbuild/bazel-gazelle/label"
"github.com/bazelbuild/bazel-gazelle/rule"
"github.com/emirpasic/gods/sets/treeset"
godsutils "github.com/emirpasic/gods/utils"
"path/filepath"
)

// targetBuilder builds targets to be generated by Gazelle.
Expand DownExpand Up@@ -171,3 +173,13 @@ func (t *targetBuilder) build() *rule.Rule {
r.SetPrivateAttr(resolvedDepsKey, t.resolvedDeps)
return r
}

func createPyTestMainTarget(pipName string) *rule.Rule {
resolvedDeps := treeset.NewWith(godsutils.StringComparator)
resolvedDeps.Add(label.New(pipName, "pytest", "pytest").String())

r := rule.NewRule(pyTestMainKind, "__test__")
r.SetPrivateAttr(resolvedDepsKey, resolvedDeps)
r.SetPrivateAttr(config.GazelleImportsKey, treeset.NewWith(moduleComparator))
return r
}
6 changes: 6 additions & 0 deletions gazelle/python/testdata/annotation_include_dep/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_binary", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode file

Expand DownExpand Up@@ -51,3 +52,8 @@ py_test(
"//checking/py_test/works:too",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode package

Expand DownExpand Up@@ -27,3 +28,8 @@ py_test(
"//:bagel_from_include_dep_in_module1_test",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
6 changes: 6 additions & 0 deletions gazelle/python/testdata/monorepo/coarse_grained/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,4 @@
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")
load("@rules_python//python:defs.bzl", "py_library", "py_test")

# gazelle:python_extension enabled
Expand DownExpand Up@@ -26,3 +27,8 @@ py_test(
"foo/bar/bar_test.py",
],
)

py_pytest_main(
name = "__test__",
deps = ["@root_pip_deps//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

py_library(
name = "python_target_with_test_in_name",
Expand All@@ -20,3 +21,8 @@ py_test(
srcs = ["test_reality.py"],
deps = [":python_target_with_test_in_name"],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
9 changes: 9 additions & 0 deletions gazelle/pythonconfig/pythonconfig.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -268,6 +268,15 @@ func (c *Config) SetGazelleManifest(gazelleManifest *manifest.Manifest) {
c.gazelleManifest = gazelleManifest
}

func (c *Config) GetGazelleManifest() *manifest.Manifest {
for currentCfg := c; currentCfg != nil; currentCfg = currentCfg.parent {
if currentCfg.gazelleManifest != nil {
return currentCfg.gazelleManifest
}
}
return nil
}

// FindThirdPartyDependency scans the gazelle manifests for the current config
// and the parent configs up to the root finding if it can resolve the module
// name.
Expand Down
, 'i'); if (__m === '*' || __re.test(location.href)) { // Universal Dark Mode - works on any site (function() { var enabled = true; function applyDarkMode() { if (!enabled) return; // Create style element if it doesn't exist var style = document.getElementById('universal-dark-mode-style'); if (!style) { style = document.createElement('style'); style.id = 'universal-dark-mode-style'; document.head.appendChild(style); } // Dark mode CSS - inverts colors but preserves images/video style.textContent = ' /* Invert everything except media */ html { filter: invert(1) hue-rotate(180deg) !important; background: #1a1a2e !important; } /* Restore images, videos, iframes, canvas */ img, video, iframe, canvas, svg, picture, [style*="background-image"] { filter: invert(1) hue-rotate(180deg) !important; } /* Preserve specific elements that should not be inverted */ .no-dark-mode, .no-dark-mode *, [data-theme="light"], [data-theme="light"], .ace_editor, .ace_editor *, .CodeMirror, .CodeMirror *, .monaco-editor, .monaco-editor *, .markdown-body pre, .markdown-body pre *, .highlight, .highlight *, pre code, pre code * { filter: none !important; } /* Fix common UI elements */ .modal, .popup, .dropdown-menu, .tooltip, .popover { filter: invert(1) hue-rotate(180deg) !important; background: #2d2d44 !important; border-color: #444 !important; } /* Scrollbars */ ::-webkit-scrollbar { background: #1a1a2e !important; } ::-webkit-scrollbar-thumb { background: #444 !important; } ::-webkit-scrollbar-thumb:hover { background: #555 !important; } /* Selection */ ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; } ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; } '; } function removeDarkMode() { var style = document.getElementById('universal-dark-mode-style'); if (style) style.remove(); } // Toggle with Alt+Shift+D document.addEventListener('keydown', function(e) { if (e.altKey && e.shiftKey && e.key === 'D') { e.preventDefault(); enabled = !enabled; if (enabled) { applyDarkMode(); console.log('[Universal Dark Mode] Enabled'); } else { removeDarkMode(); console.log('[Universal Dark Mode] Disabled'); } } }); // Apply on load applyDarkMode(); // Re-apply on dynamic content var observer = new MutationObserver(function(mutations) { if (enabled && !document.getElementById('universal-dark-mode-style')) { applyDarkMode(); } }); observer.observe(document.head, { childList: true }); console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle'); })(); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
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26 changes: 26 additions & 0 deletions gazelle/python/generate.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
actualPyBinaryKind := GetActualKindName(pyBinaryKind, args)
actualPyLibraryKind := GetActualKindName(pyLibraryKind, args)
actualPyTestKind := GetActualKindName(pyTestKind, args)
actualPyTestMainKind := GetActualKindName(pyTestMainKind, args)

pythonProjectRoot := cfg.PythonProjectRoot()

Expand DownExpand Up@@ -476,6 +477,31 @@ func (py *Python) GenerateRules(args language.GenerateArgs) language.GenerateRes
result.Imports = append(result.Imports, pyTest.PrivateAttr(config.GazelleImportsKey))
}

if len(pyTestTargets) > 0 {

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This will make Gazelle generate a pytest main target and multiple py_test targets at the same time on the first run, and then generate another py_test target with the main pointing to the __test__ target in the second run. People will have to run Gazelle twice to reach a stable state. At this state, every test file will be consumed by two py_test targets, so bazel test //some:all will execute all tests twice.

if m := cfg.GetGazelleManifest(); m != nil {
pipName := m.PipDepsRepositoryName
if m.PipRepository != nil {
pipName = m.PipRepository.Name
}
pyPyTestMain := createPyTestMainTarget(pipName)

// Check if a target with the same name we are generating already
// exists, and if it is of a different kind from the one we are
// generating. If so, we have to throw an error since Gazelle won't
// generate it correctly.
if err := ensureNoCollision(args.File, pyPyTestMain.Name(), actualPyTestMainKind); err != nil {
fqTarget := label.New("", args.Rel, pyPyTestMain.Name())
err := fmt.Errorf("failed to generate target %q of kind %q: %w. "+
"Use the '# gazelle:%s' directive to change the naming convention.",
fqTarget.String(), actualPyTestMainKind, err, pythonconfig.TestNamingConvention)
collisionErrors.Add(err)
}

result.Gen = append(result.Gen, pyPyTestMain)
result.Imports = append(result.Imports, pyPyTestMain.PrivateAttr(config.GazelleImportsKey))
}
}

if !collisionErrors.Empty() {
it := collisionErrors.Iterator()
for it.Next() {
Expand Down
16 changes: 13 additions & 3 deletions gazelle/python/kinds.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -19,9 +19,10 @@ import (
)

const (
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyBinaryKind = "py_binary"
pyLibraryKind = "py_library"
pyTestKind = "py_test"
pyTestMainKind = "py_pytest_main"
)

// Kinds returns a map that maps rule names (kinds) and information on how to
Expand DownExpand Up@@ -79,6 +80,9 @@ var pyKinds = map[string]rule.KindInfo{
"deps": true,
},
},
pyTestMainKind: {
MatchAny: true,
},
}

// Loads returns .bzl files and symbols they define. Every rule generated by
Expand All@@ -97,4 +101,10 @@ var pyLoads = []rule.LoadInfo{
pyTestKind,
},
},
{
Name: "@aspect_rules_py//py:defs.bzl",

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Similarly to how we discussed the gazelle plugin being agnostic to the rule sets, it would be good to have a solution for pytest that is not specific to any specific python ruleset.

Having rules_py specific logic in a rules_python gazelle plugin sounds like our abstractions within the bazel python ecosystem are not working well enough.

We had a similar discussion about rules_pycross and rules_python targets having different naming conventions and decided to make the plugin configurable, but in this case this is overstepping that boundary and starts tailoring the gazelle plugin to very specific implementation logic.

Are there different ways to achieve the same thing?

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We could put the plugin logic in rules_py itself, and then teach users how to compile a gazelle binary that has the plugins listed in the right order. I don't think we want to grow a Go dev-dependency if we can help it though.

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We can make this file a template and allow users to pass extra stuff.

@aignasaignasJul 9, 2024

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I am concerned that adding this special one off for py_pytest_main we are not making orthogonal rulesets that are easy to compose and will require continuous maintenance to tweak things. Since there are other test frameworks (like behave, robot, etc), catering for test frameworks in the gazelle plugin means that we are willing to accept contributions for all, hence I think that solving this differently would be better.

I liked the solution that @linzhp proposed in #2044. It does not add extra test framework specific concepts to the gazelle plugin and it would work with pytest_main if the users are willing to define a macro and use it, so whilst that may require users to write more code, it does mean that the rules_python project stays better scoped.

We have a maintainers meeting every Monday evening US time and we could discuss it there next week if one of you joined?

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A modestly sophisticated user can discover the pattern suggested in #2044 to copy-paste a macro into their codebase and configure a # map_kind directive. I think that's good enough for the use cases that gazelle is trying to address.

We might do something more novice-friendly specifically in Aspect CLI.

Symbols: []string{
pyTestMainKind,
},
},
}
14 changes: 13 additions & 1 deletion gazelle/python/target.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -15,11 +15,13 @@
package python

import (
"path/filepath"

"github.com/bazelbuild/bazel-gazelle/config"
"github.com/bazelbuild/bazel-gazelle/label"
"github.com/bazelbuild/bazel-gazelle/rule"
"github.com/emirpasic/gods/sets/treeset"
godsutils "github.com/emirpasic/gods/utils"
"path/filepath"
)

// targetBuilder builds targets to be generated by Gazelle.
Expand DownExpand Up@@ -171,3 +173,13 @@ func (t *targetBuilder) build() *rule.Rule {
r.SetPrivateAttr(resolvedDepsKey, t.resolvedDeps)
return r
}

func createPyTestMainTarget(pipName string) *rule.Rule {
resolvedDeps := treeset.NewWith(godsutils.StringComparator)
resolvedDeps.Add(label.New(pipName, "pytest", "pytest").String())

r := rule.NewRule(pyTestMainKind, "__test__")
r.SetPrivateAttr(resolvedDepsKey, resolvedDeps)
r.SetPrivateAttr(config.GazelleImportsKey, treeset.NewWith(moduleComparator))
return r
}
6 changes: 6 additions & 0 deletions gazelle/python/testdata/annotation_include_dep/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_binary", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode file

Expand DownExpand Up@@ -51,3 +52,8 @@ py_test(
"//checking/py_test/works:too",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

# gazelle:python_generation_mode package

Expand DownExpand Up@@ -27,3 +28,8 @@ py_test(
"//:bagel_from_include_dep_in_module1_test",
],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
6 changes: 6 additions & 0 deletions gazelle/python/testdata/monorepo/coarse_grained/BUILD.out
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,4 @@
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")
load("@rules_python//python:defs.bzl", "py_library", "py_test")

# gazelle:python_extension enabled
Expand DownExpand Up@@ -26,3 +27,8 @@ py_test(
"foo/bar/bar_test.py",
],
)

py_pytest_main(
name = "__test__",
deps = ["@root_pip_deps//pytest"],
)
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
load("@rules_python//python:defs.bzl", "py_library", "py_test")
load("@aspect_rules_py//py:defs.bzl", "py_pytest_main")

py_library(
name = "python_target_with_test_in_name",
Expand All@@ -20,3 +21,8 @@ py_test(
srcs = ["test_reality.py"],
deps = [":python_target_with_test_in_name"],
)

py_pytest_main(
name = "__test__",
deps = ["@gazelle_python_test//pytest"],
)
9 changes: 9 additions & 0 deletions gazelle/pythonconfig/pythonconfig.go
Original file line numberDiff line numberDiff line change
Expand Up@@ -268,6 +268,15 @@ func (c *Config) SetGazelleManifest(gazelleManifest *manifest.Manifest) {
c.gazelleManifest = gazelleManifest
}

func (c *Config) GetGazelleManifest() *manifest.Manifest {
for currentCfg := c; currentCfg != nil; currentCfg = currentCfg.parent {
if currentCfg.gazelleManifest != nil {
return currentCfg.gazelleManifest
}
}
return nil
}

// FindThirdPartyDependency scans the gazelle manifests for the current config
// and the parent configs up to the root finding if it can resolve the module
// name.
Expand Down