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Hassle-free Ruby warnings

Ruby warnings are cool. They prevent you from making typos in instance variables, making unused variables, accidentally overriding methods, and more. Unfortunately, many libraries still don’t check their code for warnings. In a big enough project you end up with tons of warnings from all the libraries you use which renders the whole thing useless. But it doesn’t have to be this way!

With the help of this gem you can filter out all those useless messages and only get the warnings relevant to your code.

Usage

Add to your Gemfile:

gem"ruby_warning_filter","~> 1.0.0"

Put the following code somewhere before your project is loaded. In a Rails application, a good place would be at the end of "config/boot.rb".

$VERBOSE =truerequire"ruby_warning_filter"
$stderr =RubyWarningFilter.new($stderr)

When running your app or tests you should see only relevant warnings. Now, go fix them!

Feedback

The filter works by proxying all writes to stderr. It has been running for a while in many of my work projects with good results. However, it is probably not comprehensive. Please, report any warnings that it misses or swallows by error.

Build Status

The gem is tested against Ruby versions 2.5 down to 2.0.

About

Verbose Ruby mode without the noise

Topics

code-qualityruby

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11 stars

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0 watching

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1 fork
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n 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;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} 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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Hassle-free Ruby warnings
Ruby warnings are cool. They prevent you from making typos in instance variables, making unused variables, accidentally overriding methods, and more. Unfortunately, many libraries still don’t check their code for warnings. In a big enough project you end up with tons of warnings from all the libraries you use which renders the whole thing useless. But it doesn’t have to be this way!
With the help of this gem you can filter out all those useless messages and only get the warnings relevant to your code.
Usage
Add to your Gemfile:
gem"ruby_warning_filter","~> 1.0.0"
Put the following code somewhere before your project is loaded. In a Rails application, a good place would be at the end of "config/boot.rb".
$VERBOSE =truerequire"ruby_warning_filter"
$stderr =RubyWarningFilter.new($stderr)
When running your app or tests you should see only relevant warnings. Now, go fix them!
Feedback
The filter works by proxying all writes to stderr. It has been running for a while in many of my work projects with good results. However, it is probably not comprehensive. Please, report any warnings that it misses or swallows by error.
Build Status
The gem is tested against Ruby versions 2.5 down to 2.0.
About
Verbose Ruby mode without the noise
Topics
code-qualityruby
Resources
Readme
Activity
Stars
11 stars
Watchers
0 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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BranchesTags
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Hassle-free Ruby warnings
Ruby warnings are cool. They prevent you from making typos in instance variables, making unused variables, accidentally overriding methods, and more. Unfortunately, many libraries still don’t check their code for warnings. In a big enough project you end up with tons of warnings from all the libraries you use which renders the whole thing useless. But it doesn’t have to be this way!
With the help of this gem you can filter out all those useless messages and only get the warnings relevant to your code.
Usage
Add to your Gemfile:
gem"ruby_warning_filter","~> 1.0.0"
Put the following code somewhere before your project is loaded. In a Rails application, a good place would be at the end of "config/boot.rb".
$VERBOSE =truerequire"ruby_warning_filter"
$stderr =RubyWarningFilter.new($stderr)
When running your app or tests you should see only relevant warnings. Now, go fix them!
Feedback
The filter works by proxying all writes to stderr. It has been running for a while in many of my work projects with good results. However, it is probably not comprehensive. Please, report any warnings that it misses or swallows by error.
Build Status
The gem is tested against Ruby versions 2.5 down to 2.0.
About
Verbose Ruby mode without the noise
Topics
code-qualityruby
Resources
Readme
Activity
Stars
11 stars
Watchers
0 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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Hassle-free Ruby warnings
Ruby warnings are cool. They prevent you from making typos in instance variables, making unused variables, accidentally overriding methods, and more. Unfortunately, many libraries still don’t check their code for warnings. In a big enough project you end up with tons of warnings from all the libraries you use which renders the whole thing useless. But it doesn’t have to be this way!
With the help of this gem you can filter out all those useless messages and only get the warnings relevant to your code.
Usage
Add to your Gemfile:
gem"ruby_warning_filter","~> 1.0.0"
Put the following code somewhere before your project is loaded. In a Rails application, a good place would be at the end of "config/boot.rb".
$VERBOSE =truerequire"ruby_warning_filter"
$stderr =RubyWarningFilter.new($stderr)
When running your app or tests you should see only relevant warnings. Now, go fix them!
Feedback
The filter works by proxying all writes to stderr. It has been running for a while in many of my work projects with good results. However, it is probably not comprehensive. Please, report any warnings that it misses or swallows by error.
Build Status
The gem is tested against Ruby versions 2.5 down to 2.0.
About
Verbose Ruby mode without the noise
Topics
code-qualityruby
Resources
Readme
Activity
Stars
11 stars
Watchers
0 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
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Hassle-free Ruby warnings
Ruby warnings are cool. They prevent you from making typos in instance variables, making unused variables, accidentally overriding methods, and more. Unfortunately, many libraries still don’t check their code for warnings. In a big enough project you end up with tons of warnings from all the libraries you use which renders the whole thing useless. But it doesn’t have to be this way!
With the help of this gem you can filter out all those useless messages and only get the warnings relevant to your code.
Usage
Add to your Gemfile:
gem"ruby_warning_filter","~> 1.0.0"
Put the following code somewhere before your project is loaded. In a Rails application, a good place would be at the end of "config/boot.rb".
$VERBOSE =truerequire"ruby_warning_filter"
$stderr =RubyWarningFilter.new($stderr)
When running your app or tests you should see only relevant warnings. Now, go fix them!
Feedback
The filter works by proxying all writes to stderr. It has been running for a while in many of my work projects with good results. However, it is probably not comprehensive. Please, report any warnings that it misses or swallows by error.
Build Status
The gem is tested against Ruby versions 2.5 down to 2.0.
About
Verbose Ruby mode without the noise
Topics
code-qualityruby
Resources
Readme
Activity
Stars
11 stars
Watchers
0 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Hassle-free Ruby warnings
Ruby warnings are cool. They prevent you from making typos in instance variables, making unused variables, accidentally overriding methods, and more. Unfortunately, many libraries still don’t check their code for warnings. In a big enough project you end up with tons of warnings from all the libraries you use which renders the whole thing useless. But it doesn’t have to be this way!
With the help of this gem you can filter out all those useless messages and only get the warnings relevant to your code.
Usage
Add to your Gemfile:
gem"ruby_warning_filter","~> 1.0.0"
Put the following code somewhere before your project is loaded. In a Rails application, a good place would be at the end of "config/boot.rb".
$VERBOSE =truerequire"ruby_warning_filter"
$stderr =RubyWarningFilter.new($stderr)
When running your app or tests you should see only relevant warnings. Now, go fix them!
Feedback
The filter works by proxying all writes to stderr. It has been running for a while in many of my work projects with good results. However, it is probably not comprehensive. Please, report any warnings that it misses or swallows by error.
Build Status
The gem is tested against Ruby versions 2.5 down to 2.0.
About
Verbose Ruby mode without the noise
Topics
code-qualityruby
Resources
Readme
Activity
Stars
11 stars
Watchers
0 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Hassle-free Ruby warnings
Ruby warnings are cool. They prevent you from making typos in instance variables, making unused variables, accidentally overriding methods, and more. Unfortunately, many libraries still don’t check their code for warnings. In a big enough project you end up with tons of warnings from all the libraries you use which renders the whole thing useless. But it doesn’t have to be this way!
With the help of this gem you can filter out all those useless messages and only get the warnings relevant to your code.
Usage
Add to your Gemfile:
gem"ruby_warning_filter","~> 1.0.0"
Put the following code somewhere before your project is loaded. In a Rails application, a good place would be at the end of "config/boot.rb".
$VERBOSE =truerequire"ruby_warning_filter"
$stderr =RubyWarningFilter.new($stderr)
When running your app or tests you should see only relevant warnings. Now, go fix them!
Feedback
The filter works by proxying all writes to stderr. It has been running for a while in many of my work projects with good results. However, it is probably not comprehensive. Please, report any warnings that it misses or swallows by error.
Build Status
The gem is tested against Ruby versions 2.5 down to 2.0.
About
Verbose Ruby mode without the noise
Topics
code-qualityruby
Resources
Readme
Activity
Stars
11 stars
Watchers
0 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
BranchesTags
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Hassle-free Ruby warnings
Ruby warnings are cool. They prevent you from making typos in instance variables, making unused variables, accidentally overriding methods, and more. Unfortunately, many libraries still don’t check their code for warnings. In a big enough project you end up with tons of warnings from all the libraries you use which renders the whole thing useless. But it doesn’t have to be this way!
With the help of this gem you can filter out all those useless messages and only get the warnings relevant to your code.
Usage
Add to your Gemfile:
gem"ruby_warning_filter","~> 1.0.0"
Put the following code somewhere before your project is loaded. In a Rails application, a good place would be at the end of "config/boot.rb".
$VERBOSE =truerequire"ruby_warning_filter"
$stderr =RubyWarningFilter.new($stderr)
When running your app or tests you should see only relevant warnings. Now, go fix them!
Feedback
The filter works by proxying all writes to stderr. It has been running for a while in many of my work projects with good results. However, it is probably not comprehensive. Please, report any warnings that it misses or swallows by error.
Build Status
The gem is tested against Ruby versions 2.5 down to 2.0.
About
Verbose Ruby mode without the noise
Topics
code-qualityruby
Resources
Readme
Activity
Stars
11 stars
Watchers
0 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages