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MimeMagic is a library to detect the mime type of a file by extension or by content. It uses the mime database provided by freedesktop.org (see http://freedesktop.org/wiki/Software/shared-mime-info/).

Gem Version

Dependencies

You will require a copy of the Freedesktop.org shared-mime-info database to be available. If you're on Linux, it's probably available via your package manager, and will probably be in the location it's being looked for when the gem is installed.

macOS users can install the database via Homebrew with brew install shared-mime-info.

Should you be unable to use a package manager you can obtain a copy of the needed file by extracting it from the Debian package. This process will also work on a Windows machine.

  1. Download the package from https://packages.debian.org/sid/amd64/shared-mime-info/download
  2. Ensure the command line version of 7-Zip is installed
  3. 7z x -so shared-mime-info_2.0-1_amd64.deb data.tar | 7z e -sidata.tar "./usr/share/mime/packages/freedesktop.org.xml"

Place the file freedesktop.org.xml in an appropriate location, and then set the environment variable FREEDESKTOP_MIME_TYPES_PATH to that path. Once that has been done the gem should install successfully. Please note that the gem will depend upon the file remaining in that location at run time.

Usage

require'mimemagic'MimeMagic.by_extension('html').text?MimeMagic.by_extension('.html').child_of?'text/plain'MimeMagic.by_path('filename.txt')MimeMagic.by_magic(File.open('test.html'))# etc...

You can add your own magic with MimeMagic.add.

API

http://www.rubydoc.info/github/mimemagicrb/mimemagic

Tests

$ bundle install
$ bundle exec rake test

Authors

LICENSE

{file:LICENSE MIT}

About

Mime type detection in ruby via file extension or file content

github.com/mimemagicrb/mimemagic

Resources

Readme
MIT license
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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" + '

Skip to content
BranchesTags
Repository files navigation
MimeMagic is a library to detect the mime type of a file by extension or by content. It uses the mime database
provided by freedesktop.org (see http://freedesktop.org/wiki/Software/shared-mime-info/).
Gem Version
Dependencies
You will require a copy of the Freedesktop.org shared-mime-info database to be available. If you're on Linux,
it's probably available via your package manager, and will probably be in the location it's being looked for
when the gem is installed.
macOS users can install the database via Homebrew with brew install shared-mime-info.
Should you be unable to use a package manager you can obtain a copy of the needed file by extracting it from
the Debian package. This process will also work on a Windows machine.
  1. Download the package from https://packages.debian.org/sid/amd64/shared-mime-info/download
  2. Ensure the command line version of 7-Zip is installed
  3. 7z x -so shared-mime-info_2.0-1_amd64.deb data.tar | 7z e -sidata.tar "./usr/share/mime/packages/freedesktop.org.xml"
Place the file freedesktop.org.xml in an appropriate location, and then set the environment variable
FREEDESKTOP_MIME_TYPES_PATH to that path. Once that has been done the gem should install successfully. Please
note that the gem will depend upon the file remaining in that location at run time.
Usage
require'mimemagic'MimeMagic.by_extension('html').text?MimeMagic.by_extension('.html').child_of?'text/plain'MimeMagic.by_path('filename.txt')MimeMagic.by_magic(File.open('test.html'))# etc...
You can add your own magic with MimeMagic.add.
API
http://www.rubydoc.info/github/mimemagicrb/mimemagic
Tests
$ bundle install
$ bundle exec rake test
Authors
LICENSE
{file:LICENSE MIT}
About
Mime type detection in ruby via file extension or file content
github.com/mimemagicrb/mimemagic
Resources
Readme
MIT license
Activity
Custom properties
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0 stars
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0 watching
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0 forks
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, '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('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
MimeMagic is a library to detect the mime type of a file by extension or by content. It uses the mime database
provided by freedesktop.org (see http://freedesktop.org/wiki/Software/shared-mime-info/).
Gem Version
Dependencies
You will require a copy of the Freedesktop.org shared-mime-info database to be available. If you're on Linux,
it's probably available via your package manager, and will probably be in the location it's being looked for
when the gem is installed.
macOS users can install the database via Homebrew with brew install shared-mime-info.
Should you be unable to use a package manager you can obtain a copy of the needed file by extracting it from
the Debian package. This process will also work on a Windows machine.
  1. Download the package from https://packages.debian.org/sid/amd64/shared-mime-info/download
  2. Ensure the command line version of 7-Zip is installed
  3. 7z x -so shared-mime-info_2.0-1_amd64.deb data.tar | 7z e -sidata.tar "./usr/share/mime/packages/freedesktop.org.xml"
Place the file freedesktop.org.xml in an appropriate location, and then set the environment variable
FREEDESKTOP_MIME_TYPES_PATH to that path. Once that has been done the gem should install successfully. Please
note that the gem will depend upon the file remaining in that location at run time.
Usage
require'mimemagic'MimeMagic.by_extension('html').text?MimeMagic.by_extension('.html').child_of?'text/plain'MimeMagic.by_path('filename.txt')MimeMagic.by_magic(File.open('test.html'))# etc...
You can add your own magic with MimeMagic.add.
API
http://www.rubydoc.info/github/mimemagicrb/mimemagic
Tests
$ bundle install
$ bundle exec rake test
Authors
LICENSE
{file:LICENSE MIT}
About
Mime type detection in ruby via file extension or file content
github.com/mimemagicrb/mimemagic
Resources
Readme
MIT license
Activity
Custom properties
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
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, '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
Repository files navigation
MimeMagic is a library to detect the mime type of a file by extension or by content. It uses the mime database
provided by freedesktop.org (see http://freedesktop.org/wiki/Software/shared-mime-info/).
Gem Version
Dependencies
You will require a copy of the Freedesktop.org shared-mime-info database to be available. If you're on Linux,
it's probably available via your package manager, and will probably be in the location it's being looked for
when the gem is installed.
macOS users can install the database via Homebrew with brew install shared-mime-info.
Should you be unable to use a package manager you can obtain a copy of the needed file by extracting it from
the Debian package. This process will also work on a Windows machine.
  1. Download the package from https://packages.debian.org/sid/amd64/shared-mime-info/download
  2. Ensure the command line version of 7-Zip is installed
  3. 7z x -so shared-mime-info_2.0-1_amd64.deb data.tar | 7z e -sidata.tar "./usr/share/mime/packages/freedesktop.org.xml"
Place the file freedesktop.org.xml in an appropriate location, and then set the environment variable
FREEDESKTOP_MIME_TYPES_PATH to that path. Once that has been done the gem should install successfully. Please
note that the gem will depend upon the file remaining in that location at run time.
Usage
require'mimemagic'MimeMagic.by_extension('html').text?MimeMagic.by_extension('.html').child_of?'text/plain'MimeMagic.by_path('filename.txt')MimeMagic.by_magic(File.open('test.html'))# etc...
You can add your own magic with MimeMagic.add.
API
http://www.rubydoc.info/github/mimemagicrb/mimemagic
Tests
$ bundle install
$ bundle exec rake test
Authors
LICENSE
{file:LICENSE MIT}
About
Mime type detection in ruby via file extension or file content
github.com/mimemagicrb/mimemagic
Resources
Readme
MIT license
Activity
Custom properties
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
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, '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
Repository files navigation
MimeMagic is a library to detect the mime type of a file by extension or by content. It uses the mime database
provided by freedesktop.org (see http://freedesktop.org/wiki/Software/shared-mime-info/).
Gem Version
Dependencies
You will require a copy of the Freedesktop.org shared-mime-info database to be available. If you're on Linux,
it's probably available via your package manager, and will probably be in the location it's being looked for
when the gem is installed.
macOS users can install the database via Homebrew with brew install shared-mime-info.
Should you be unable to use a package manager you can obtain a copy of the needed file by extracting it from
the Debian package. This process will also work on a Windows machine.
  1. Download the package from https://packages.debian.org/sid/amd64/shared-mime-info/download
  2. Ensure the command line version of 7-Zip is installed
  3. 7z x -so shared-mime-info_2.0-1_amd64.deb data.tar | 7z e -sidata.tar "./usr/share/mime/packages/freedesktop.org.xml"
Place the file freedesktop.org.xml in an appropriate location, and then set the environment variable
FREEDESKTOP_MIME_TYPES_PATH to that path. Once that has been done the gem should install successfully. Please
note that the gem will depend upon the file remaining in that location at run time.
Usage
require'mimemagic'MimeMagic.by_extension('html').text?MimeMagic.by_extension('.html').child_of?'text/plain'MimeMagic.by_path('filename.txt')MimeMagic.by_magic(File.open('test.html'))# etc...
You can add your own magic with MimeMagic.add.
API
http://www.rubydoc.info/github/mimemagicrb/mimemagic
Tests
$ bundle install
$ bundle exec rake test
Authors
LICENSE
{file:LICENSE MIT}
About
Mime type detection in ruby via file extension or file content
github.com/mimemagicrb/mimemagic
Resources
Readme
MIT license
Activity
Custom properties
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
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
MimeMagic is a library to detect the mime type of a file by extension or by content. It uses the mime database
provided by freedesktop.org (see http://freedesktop.org/wiki/Software/shared-mime-info/).
Gem Version
Dependencies
You will require a copy of the Freedesktop.org shared-mime-info database to be available. If you're on Linux,
it's probably available via your package manager, and will probably be in the location it's being looked for
when the gem is installed.
macOS users can install the database via Homebrew with brew install shared-mime-info.
Should you be unable to use a package manager you can obtain a copy of the needed file by extracting it from
the Debian package. This process will also work on a Windows machine.
  1. Download the package from https://packages.debian.org/sid/amd64/shared-mime-info/download
  2. Ensure the command line version of 7-Zip is installed
  3. 7z x -so shared-mime-info_2.0-1_amd64.deb data.tar | 7z e -sidata.tar "./usr/share/mime/packages/freedesktop.org.xml"
Place the file freedesktop.org.xml in an appropriate location, and then set the environment variable
FREEDESKTOP_MIME_TYPES_PATH to that path. Once that has been done the gem should install successfully. Please
note that the gem will depend upon the file remaining in that location at run time.
Usage
require'mimemagic'MimeMagic.by_extension('html').text?MimeMagic.by_extension('.html').child_of?'text/plain'MimeMagic.by_path('filename.txt')MimeMagic.by_magic(File.open('test.html'))# etc...
You can add your own magic with MimeMagic.add.
API
http://www.rubydoc.info/github/mimemagicrb/mimemagic
Tests
$ bundle install
$ bundle exec rake test
Authors
LICENSE
{file:LICENSE MIT}
About
Mime type detection in ruby via file extension or file content
github.com/mimemagicrb/mimemagic
Resources
Readme
MIT license
Activity
Custom properties
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
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
MimeMagic is a library to detect the mime type of a file by extension or by content. It uses the mime database
provided by freedesktop.org (see http://freedesktop.org/wiki/Software/shared-mime-info/).
Gem Version
Dependencies
You will require a copy of the Freedesktop.org shared-mime-info database to be available. If you're on Linux,
it's probably available via your package manager, and will probably be in the location it's being looked for
when the gem is installed.
macOS users can install the database via Homebrew with brew install shared-mime-info.
Should you be unable to use a package manager you can obtain a copy of the needed file by extracting it from
the Debian package. This process will also work on a Windows machine.
  1. Download the package from https://packages.debian.org/sid/amd64/shared-mime-info/download
  2. Ensure the command line version of 7-Zip is installed
  3. 7z x -so shared-mime-info_2.0-1_amd64.deb data.tar | 7z e -sidata.tar "./usr/share/mime/packages/freedesktop.org.xml"
Place the file freedesktop.org.xml in an appropriate location, and then set the environment variable
FREEDESKTOP_MIME_TYPES_PATH to that path. Once that has been done the gem should install successfully. Please
note that the gem will depend upon the file remaining in that location at run time.
Usage
require'mimemagic'MimeMagic.by_extension('html').text?MimeMagic.by_extension('.html').child_of?'text/plain'MimeMagic.by_path('filename.txt')MimeMagic.by_magic(File.open('test.html'))# etc...
You can add your own magic with MimeMagic.add.
API
http://www.rubydoc.info/github/mimemagicrb/mimemagic
Tests
$ bundle install
$ bundle exec rake test
Authors
LICENSE
{file:LICENSE MIT}
About
Mime type detection in ruby via file extension or file content
github.com/mimemagicrb/mimemagic
Resources
Readme
MIT license
Activity
Custom properties
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
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
Repository files navigation
MimeMagic is a library to detect the mime type of a file by extension or by content. It uses the mime database
provided by freedesktop.org (see http://freedesktop.org/wiki/Software/shared-mime-info/).
Gem Version
Dependencies
You will require a copy of the Freedesktop.org shared-mime-info database to be available. If you're on Linux,
it's probably available via your package manager, and will probably be in the location it's being looked for
when the gem is installed.
macOS users can install the database via Homebrew with brew install shared-mime-info.
Should you be unable to use a package manager you can obtain a copy of the needed file by extracting it from
the Debian package. This process will also work on a Windows machine.
  1. Download the package from https://packages.debian.org/sid/amd64/shared-mime-info/download
  2. Ensure the command line version of 7-Zip is installed
  3. 7z x -so shared-mime-info_2.0-1_amd64.deb data.tar | 7z e -sidata.tar "./usr/share/mime/packages/freedesktop.org.xml"
Place the file freedesktop.org.xml in an appropriate location, and then set the environment variable
FREEDESKTOP_MIME_TYPES_PATH to that path. Once that has been done the gem should install successfully. Please
note that the gem will depend upon the file remaining in that location at run time.
Usage
require'mimemagic'MimeMagic.by_extension('html').text?MimeMagic.by_extension('.html').child_of?'text/plain'MimeMagic.by_path('filename.txt')MimeMagic.by_magic(File.open('test.html'))# etc...
You can add your own magic with MimeMagic.add.
API
http://www.rubydoc.info/github/mimemagicrb/mimemagic
Tests
$ bundle install
$ bundle exec rake test
Authors
LICENSE
{file:LICENSE MIT}
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Mime type detection in ruby via file extension or file content
github.com/mimemagicrb/mimemagic
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