Update from upstream repo github/linguist

.devcontainer/Dockerfile

@@ -0,0 +1,3 @@
+# Available versions: https://github.com/devcontainers/images/tree/main/src/ruby
+FROM mcr.microsoft.com/devcontainers/ruby
+RUN apt update && apt install -y cmake

.devcontainer/devcontainer.json

@@ -0,0 +1,27 @@
+{
+  "name": "Ruby",
+  "build": {
+    "dockerfile": "Dockerfile"
+  },
+  "features": {
+    "ghcr.io/devcontainers/features/docker-in-docker:2": {},
+    "ghcr.io/devcontainers/features/go:1": {}
+  },
+  "customizations": {
+    "codespaces": {
+      "openFiles": [
+        "CONTRIBUTING.md",
+        "lib/linguist/languages.yml"
+      ]
+    },
+    "vscode": {
+      "extensions": [
+        "EditorConfig.EditorConfig",
+        "redhat.vscode-yaml",
+        "Shopify.ruby-lsp"
+      ]
+    }
+  },
+  "onCreateCommand": ".devcontainer/onCreateCommand.sh",
+  "remoteUser": "vscode"
+}

.devcontainer/onCreateCommand.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+./script/bootstrap
+git remote add linguist https://github.com/github-linguist/linguist
+git fetch linguist v2.0.0:v2.0.0 test/attributes:test/attributes test/master:test/master

.dockerignore

@@ -0,0 +1,2 @@
+.git/
+test/

.editorconfig

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+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 2
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.{h,c}]
+indent_style = tab
+indent_size = 8
+
+[{Dockerfile,Makefile,*.go,script/add-grammar}]
+indent_style = tab
+indent_size = 4
+
+# Ignore fixtures and vendored files
+[{grammars,test/fixtures,samples,vendor}/**]
+charset = unset
+end_of_line = unset
+indent_size = unset
+indent_style = unset
+insert_final_newline = unset
+trim_trailing_whitespace = unset

.gitattributes

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+# Fix syntax highlighting for devcontainer files
+.devcontainer/*.json linguist-language=JSON-with-Comments

.github/CODEOWNERS

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+# All pull requests need to be reviewed by someone from GitHub.
+#
+*     @github-linguist/github

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,32 @@
+---
+name: Bug report
+about: Found a bug? Let us know. Please start with **Discussions** if your issue is regarding unexpected language analysis or statistics.
+title: ''
+labels: Bug
+assignees: ''
+---
+<!--
+NOTE: Please use Discussions for all incorrect or unexpected language analysis or
+      statistics behaviour BEFORE opening a bug.
+
+      If you know how to fix this bug, please feel free to submit a Pull Request
+      with your fix; we don't need an issue first.
+-->
+
+## Describe the bug
+<!--
+Please provide a clear and detailed explanation of the bug you've found, and why
+you consider it to be a bug.
+
+Ideally, please provide steps to reproduce the bug and include the output from
+using `github-linguist` on the command line.
+-->
+
+### Expected behaviour
+<!-- What was it you expected to see? Be detailed and specific. -->
+
+### Related discussion
+<!-- Include links to related discussion threads, if any. -->
+
+### Additional notes
+<!-- Add any remaining details here; e.g., context, @‌mentions, external links, etc -->

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Get help in GitHub Discussions
+    url: https://github.com/github/linguist/discussions
+    about: Have a question? Surprised by your repository language analysis? The quickest way to get help is on Linguist's GitHub Discussions!

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,16 @@
+---
+name: Feature request
+about: Suggest an enhancement
+title: ''
+labels: Improvement
+assignees: ''
+---
+
+## Describe the enhancement
+
+<!--
+
+Please let us know what enhancement you'd like to see made to Linguist. The more
+detail you provide, the better.
+
+-->

.github/ISSUE_TEMPLATE/new_language.md

@@ -0,0 +1,38 @@
+---
+name: New language
+about: Request support for a new language
+title: ''
+labels: Add Language, Good First Issue
+assignees: ''
+---
+
+<!--
+
+👋 If you have the time and know-how, send us a pull-request: everybody is welcome to contribute!
+Otherwise, fill out the following fields as best you can.
+
+-->
+## Language name
+
+
+## URL of example repository
+
+
+## URL of syntax highlighting grammar
+
+
+## Most popular extensions
+
+<!--
+
+List the extensions commonly used by this language.
+
+-->
+
+## Detected language
+
+<!--
+
+What language are files for this language being identified as, if any?
+
+-->

.github/PULL_REQUEST_TEMPLATE.md

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+<!--- Briefly describe your changes in the field above. -->
+
+## Description
+<!--- If necessary, go into depth of what this pull request is doing. -->
+
+## Checklist:
+<!--- Go over all the following points, and put an `x` in all the boxes that apply. -->
+<!--- Please remove whole sections, not points within the sections, that do not apply -->
+<!--- If you're unsure about any of these, don't hesitate to ask. We're here to help! -->
+- [ ] **I am adding a new extension to a language.**
+  - [ ] The new extension is used in hundreds of repositories on GitHub.com
+    - Search results for each extension:
+      <!-- Replace FOOBAR with the new extension, and KEYWORDS with keywords unique to the language. Repeat for each extension added. -->
+      - https://github.com/search?type=code&q=NOT+is%3Afork+path%3A*.FOOBAR+KEYWORDS
+  - [ ] I have included a real-world usage sample for all extensions added in this PR:
+    - Sample source(s):
+      - [URL to each sample source, if applicable]
+    - Sample license(s):
+  - [ ] I have included a change to the heuristics to distinguish my language from others using the same extension.
+
+- [ ] **I am adding a new language.**
+  - [ ] The extension of the new language is used in hundreds of repositories on GitHub.com.
+    - Search results for each extension:
+      <!-- Replace FOOBAR with the new extension, and KEYWORDS with keywords unique to the language. Repeat for each extension added. -->
+      -  https://github.com/search?type=code&q=NOT+is%3Afork+path%3A*.FOOBAR+KEYWORDS
+  - [ ] I have included a real-world usage sample for all extensions added in this PR:
+    - Sample source(s):
+      - [URL to each sample source, if applicable]
+    - Sample license(s):
+  - [ ] I have included a syntax highlighting grammar: [URL to grammar repo]
+      <!-- Setting a color is strongly recommended, but optional: `#cccccc` is used by default -->
+  - [ ] I have added a color
+    - Hex value: `#RRGGBB`
+    - Rationale: <!-- Please specify why you chose this color (if it was randomly selected, please say so); it helps arbitrate future requests to change a language's color -->
+  - [ ] I have updated the heuristics to distinguish my language from others using the same extension.
+
+- [ ] **I am fixing a misclassified language**
+  - [ ] I have included a new sample for the misclassified language:
+    - Sample source(s):
+      - [URL to each sample source, if applicable]
+    - Sample license(s):
+  - [ ] I have included a change to the heuristics to distinguish my language from others using the same extension.
+
+- [ ] **I am changing the source of a syntax highlighting grammar**
+  - Old: [URL to grammar repo]
+  - New: [URL to grammar repo]
+
+- [ ] **I am updating a grammar submodule**
+  <!-- That's not necessary, grammar submodules are updated automatically with each new release. -->
+
+- [ ] **I am adding new or changing current functionality**
+  <!-- This includes modifying the vendor, documentation, and generated lists. -->
+  - [ ] I have added or updated the tests for the new or changed functionality.
+
+- [ ] **I am changing the color associated with a language**
+  <!-- Please ensure you have gathered agreement from the wider language community _before_ opening this PR -->
+  - [ ] I have obtained agreement from the wider language community on this color change.
+    - [URL to public discussion]
+    - [Optional: URL to official branding guidelines for the language]

.github/dependabot.yml

@@ -0,0 +1,7 @@
+version: 2
+updates:
+  # Only check for Ruby gem updates
+  - package-ecosystem: "bundler"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/ci.yml

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+name: Run Tests
+
+on:
+  # Trigger the workflow on push or pull request, but only for the master branch
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+  merge_group:
+
+permissions:
+  contents: read
+
+jobs:
+  run:
+    name: Ruby ${{ matrix.ruby }}
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby: [ '3.2', '3.1', '3.0' ]
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby }}
+        bundler-cache: true
+    - name: Fetch grammar submodules
+      run: |
+        git fetch origin master:master v2.0.0:v2.0.0 test/attributes:test/attributes test/master:test/master
+        sed -i 's|git@github.com:|https://github.com/|' .gitmodules
+        git submodule init
+        git submodule sync --quiet
+        script/fast-submodule-update
+    - name: Run tests
+      run: bundle exec rake
+    - name: Check Licenses
+      run: bundle exec licensed status -c vendor/licenses/config.yml
+  dockerfile:
+    name: Test Dockerfile
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: Build container
+      run: docker build -t linguist .
+    - name: Analyse current directory
+      run: docker run --rm -v $(pwd):$(pwd) -w $(pwd) --user $(id -u) -t linguist | tee output
+    - name: Confirm analysis
+      run: grep Ruby output
+  classifier:
+    name: Classifier cross-validation
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: '3.2'
+        bundler-cache: true
+    - name: Build
+      run: bundle exec rake samples
+    - name: Run cross-validation
+      run: bundle exec script/cross-validation --test 2>&1

.gitignore

@@ -1,8 +1,16 @@
+*.gem
 /Gemfile.lock
 .bundle/
+.idea
 benchmark/
 lib/linguist/samples.json
 /grammars
 /node_modules
 test/fixtures/ace_modes.json
 /vendor/gems/
+/tmp
+*.bundle
+*.so
+linguist-grammars*
+.venv
+Brewfile.lock.json