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build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip #1233

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build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip#1233
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enhancementNew feature or request

Description

@Chemaclass
Chemaclass
opened on Aug 14, 2026

Problem

build::strip_comments round-trips the flattened artifact through shfmt's JSON AST so that # inside a heredoc is not mistaken for a comment. Timing the three stages on the current artifact:

stagetime
shfmt -ln=bash --to-json0.50s
jq 'walk(…)'5.11s
shfmt -i 2 --from-json0.39s

The AST is 57 MB. walk is defined in jq's own language and rebuilds every node of it, so the filter costs more than the parse and the re-print combined.

Fix

Two changes, same filter:

  • (.. | objects | select(has("Comments")) | .Comments) |= map(select(…)) — .. is jq's C-level recursive descent, and only the matched paths are updated
  • jq -c — the intermediate is 57 MB that shfmt immediately re-parses, so pretty-printing it is wasted

Measured on the full pipeline, three runs each:

old 6.46s 6.54s 6.64s
new 2.52s 2.61s 2.54s

End to end, ./build.sh goes 7.63s → 4.04s, and the two artifacts are byte-identical (checksum files differ only in the embedded output path, which is the directory each was built into).

Where it pays

Every Build & Verify CI job on two platforms, every release, and test_built_binary_stays_below_640_kib, which was the seventh-slowest test in the suite at 7.81s.

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var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip · Issue #1233 · TypedDevs/bashunit · GitHub
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build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip #1233
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build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip#1233
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Labels
enhancementNew feature or request
Description
@Chemaclass
Chemaclass
opened on Aug 14, 2026
Problem
build::strip_comments round-trips the flattened artifact through shfmt's JSON AST so that # inside a heredoc is not mistaken for a comment. Timing the three stages on the current artifact:
stagetime
shfmt -ln=bash --to-json0.50s
jq 'walk(…)'5.11s
shfmt -i 2 --from-json0.39s
The AST is 57 MB. walk is defined in jq's own language and rebuilds every node of it, so the filter costs more than the parse and the re-print combined.
Fix
Two changes, same filter:
  • (.. | objects | select(has("Comments")) | .Comments) |= map(select(…)) — .. is jq's C-level recursive descent, and only the matched paths are updated
  • jq -c — the intermediate is 57 MB that shfmt immediately re-parses, so pretty-printing it is wasted
Measured on the full pipeline, three runs each:
old 6.46s 6.54s 6.64s
new 2.52s 2.61s 2.54s

End to end, ./build.sh goes 7.63s → 4.04s, and the two artifacts are byte-identical (checksum files differ only in the embedded output path, which is the directory each was built into).
Where it pays
Every Build & Verify CI job on two platforms, every release, and test_built_binary_stays_below_640_kib, which was the seventh-slowest test in the suite at 7.81s.
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  • bashunit
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try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip · Issue #1233 · TypedDevs/bashunit · GitHub
Skip to content
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip #1233
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build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip#1233
Assignees
Chemaclass
Labels
enhancementNew feature or request
Description
@Chemaclass
Chemaclass
opened on Aug 14, 2026
Problem
build::strip_comments round-trips the flattened artifact through shfmt's JSON AST so that # inside a heredoc is not mistaken for a comment. Timing the three stages on the current artifact:
stagetime
shfmt -ln=bash --to-json0.50s
jq 'walk(…)'5.11s
shfmt -i 2 --from-json0.39s
The AST is 57 MB. walk is defined in jq's own language and rebuilds every node of it, so the filter costs more than the parse and the re-print combined.
Fix
Two changes, same filter:
  • (.. | objects | select(has("Comments")) | .Comments) |= map(select(…)) — .. is jq's C-level recursive descent, and only the matched paths are updated
  • jq -c — the intermediate is 57 MB that shfmt immediately re-parses, so pretty-printing it is wasted
Measured on the full pipeline, three runs each:
old 6.46s 6.54s 6.64s
new 2.52s 2.61s 2.54s

End to end, ./build.sh goes 7.63s → 4.04s, and the two artifacts are byte-identical (checksum files differ only in the embedded output path, which is the directory each was built into).
Where it pays
Every Build & Verify CI job on two platforms, every release, and test_built_binary_stays_below_640_kib, which was the seventh-slowest test in the suite at 7.81s.
Metadata
Metadata
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enhancementNew feature or request
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  • bashunit
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observer.observe(document.body, { childList: true, subtree: true });
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} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip · Issue #1233 · TypedDevs/bashunit · GitHub
Skip to content
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip #1233
Closed
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build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip#1233
Assignees
Chemaclass
Labels
enhancementNew feature or request
Description
@Chemaclass
Chemaclass
opened on Aug 14, 2026
Problem
build::strip_comments round-trips the flattened artifact through shfmt's JSON AST so that # inside a heredoc is not mistaken for a comment. Timing the three stages on the current artifact:
stagetime
shfmt -ln=bash --to-json0.50s
jq 'walk(…)'5.11s
shfmt -i 2 --from-json0.39s
The AST is 57 MB. walk is defined in jq's own language and rebuilds every node of it, so the filter costs more than the parse and the re-print combined.
Fix
Two changes, same filter:
  • (.. | objects | select(has("Comments")) | .Comments) |= map(select(…)) — .. is jq's C-level recursive descent, and only the matched paths are updated
  • jq -c — the intermediate is 57 MB that shfmt immediately re-parses, so pretty-printing it is wasted
Measured on the full pipeline, three runs each:
old 6.46s 6.54s 6.64s
new 2.52s 2.61s 2.54s

End to end, ./build.sh goes 7.63s → 4.04s, and the two artifacts are byte-identical (checksum files differ only in the embedded output path, which is the directory each was built into).
Where it pays
Every Build & Verify CI job on two platforms, every release, and test_built_binary_stays_below_640_kib, which was the seventh-slowest test in the suite at 7.81s.
Metadata
Metadata
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enhancementNew feature or request
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Projects
  • bashunit
    Status
    Done
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Development
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Issue actions

, 'i');
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'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
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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);
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} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
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cleanLinks();
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mutations.forEach(function(m) {
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observer.observe(document.body, { childList: true, subtree: true });
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try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip · Issue #1233 · TypedDevs/bashunit · GitHub
Skip to content
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip #1233
Closed
Closed
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip#1233
Assignees
Chemaclass
Labels
enhancementNew feature or request
Description
@Chemaclass
Chemaclass
opened on Aug 14, 2026
Problem
build::strip_comments round-trips the flattened artifact through shfmt's JSON AST so that # inside a heredoc is not mistaken for a comment. Timing the three stages on the current artifact:
stagetime
shfmt -ln=bash --to-json0.50s
jq 'walk(…)'5.11s
shfmt -i 2 --from-json0.39s
The AST is 57 MB. walk is defined in jq's own language and rebuilds every node of it, so the filter costs more than the parse and the re-print combined.
Fix
Two changes, same filter:
  • (.. | objects | select(has("Comments")) | .Comments) |= map(select(…)) — .. is jq's C-level recursive descent, and only the matched paths are updated
  • jq -c — the intermediate is 57 MB that shfmt immediately re-parses, so pretty-printing it is wasted
Measured on the full pipeline, three runs each:
old 6.46s 6.54s 6.64s
new 2.52s 2.61s 2.54s

End to end, ./build.sh goes 7.63s → 4.04s, and the two artifacts are byte-identical (checksum files differ only in the embedded output path, which is the directory each was built into).
Where it pays
Every Build & Verify CI job on two platforms, every release, and test_built_binary_stays_below_640_kib, which was the seventh-slowest test in the suite at 7.81s.
Metadata
Metadata
Assignees
Labels
enhancementNew feature or request
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No type
Projects
  • bashunit
    Status
    Done
Milestone
No milestone
Relationships
None yet
Development
No branches or pull requests
Issue actions

, 'i');
if (__m === '*' || __re.test(location.href)) {
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observer.observe(document.body, { childList: true, subtree: true });
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} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip · Issue #1233 · TypedDevs/bashunit · GitHub
Skip to content
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip #1233
Closed
Closed
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip#1233
Assignees
Chemaclass
Labels
enhancementNew feature or request
Description
@Chemaclass
Chemaclass
opened on Aug 14, 2026
Problem
build::strip_comments round-trips the flattened artifact through shfmt's JSON AST so that # inside a heredoc is not mistaken for a comment. Timing the three stages on the current artifact:
stagetime
shfmt -ln=bash --to-json0.50s
jq 'walk(…)'5.11s
shfmt -i 2 --from-json0.39s
The AST is 57 MB. walk is defined in jq's own language and rebuilds every node of it, so the filter costs more than the parse and the re-print combined.
Fix
Two changes, same filter:
  • (.. | objects | select(has("Comments")) | .Comments) |= map(select(…)) — .. is jq's C-level recursive descent, and only the matched paths are updated
  • jq -c — the intermediate is 57 MB that shfmt immediately re-parses, so pretty-printing it is wasted
Measured on the full pipeline, three runs each:
old 6.46s 6.54s 6.64s
new 2.52s 2.61s 2.54s

End to end, ./build.sh goes 7.63s → 4.04s, and the two artifacts are byte-identical (checksum files differ only in the embedded output path, which is the directory each was built into).
Where it pays
Every Build & Verify CI job on two platforms, every release, and test_built_binary_stays_below_640_kib, which was the seventh-slowest test in the suite at 7.81s.
Metadata
Metadata
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enhancementNew feature or request
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Projects
  • bashunit
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, 'i');
if (__m === '*' || __re.test(location.href)) {
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip · Issue #1233 · TypedDevs/bashunit · GitHub
Skip to content
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip #1233
Closed
Closed
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip#1233
Assignees
Chemaclass
Labels
enhancementNew feature or request
Description
@Chemaclass
Chemaclass
opened on Aug 14, 2026
Problem
build::strip_comments round-trips the flattened artifact through shfmt's JSON AST so that # inside a heredoc is not mistaken for a comment. Timing the three stages on the current artifact:
stagetime
shfmt -ln=bash --to-json0.50s
jq 'walk(…)'5.11s
shfmt -i 2 --from-json0.39s
The AST is 57 MB. walk is defined in jq's own language and rebuilds every node of it, so the filter costs more than the parse and the re-print combined.
Fix
Two changes, same filter:
  • (.. | objects | select(has("Comments")) | .Comments) |= map(select(…)) — .. is jq's C-level recursive descent, and only the matched paths are updated
  • jq -c — the intermediate is 57 MB that shfmt immediately re-parses, so pretty-printing it is wasted
Measured on the full pipeline, three runs each:
old 6.46s 6.54s 6.64s
new 2.52s 2.61s 2.54s

End to end, ./build.sh goes 7.63s → 4.04s, and the two artifacts are byte-identical (checksum files differ only in the embedded output path, which is the directory each was built into).
Where it pays
Every Build & Verify CI job on two platforms, every release, and test_built_binary_stays_below_640_kib, which was the seventh-slowest test in the suite at 7.81s.
Metadata
Metadata
Assignees
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enhancementNew feature or request
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  • bashunit
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
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var enabled = true;
function applyDarkMode() {
if (!enabled) return;
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style.id = 'universal-dark-mode-style';
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filter: invert(1) hue-rotate(180deg) !important;
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border-color: #444 !important;
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::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
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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); }
})();
})();
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip · Issue #1233 · TypedDevs/bashunit · GitHub
Skip to content
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip #1233
Closed
Closed
build.sh: jq walk() over the 57 MB AST is 5s of a 6.5s comment strip#1233
Assignees
Chemaclass
Labels
enhancementNew feature or request
Description
@Chemaclass
Chemaclass
opened on Aug 14, 2026
Problem
build::strip_comments round-trips the flattened artifact through shfmt's JSON AST so that # inside a heredoc is not mistaken for a comment. Timing the three stages on the current artifact:
stagetime
shfmt -ln=bash --to-json0.50s
jq 'walk(…)'5.11s
shfmt -i 2 --from-json0.39s
The AST is 57 MB. walk is defined in jq's own language and rebuilds every node of it, so the filter costs more than the parse and the re-print combined.
Fix
Two changes, same filter:
  • (.. | objects | select(has("Comments")) | .Comments) |= map(select(…)) — .. is jq's C-level recursive descent, and only the matched paths are updated
  • jq -c — the intermediate is 57 MB that shfmt immediately re-parses, so pretty-printing it is wasted
Measured on the full pipeline, three runs each:
old 6.46s 6.54s 6.64s
new 2.52s 2.61s 2.54s

End to end, ./build.sh goes 7.63s → 4.04s, and the two artifacts are byte-identical (checksum files differ only in the embedded output path, which is the directory each was built into).
Where it pays
Every Build & Verify CI job on two platforms, every release, and test_built_binary_stays_below_640_kib, which was the seventh-slowest test in the suite at 7.81s.
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