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Pull request overview
This PR adds a VSCode devcontainer configuration for the Jekyll documentation site to provide a consistent development environment for contributors. The devcontainer uses a Jekyll base image with Node.js support and automatically installs dependencies on container creation.
Changes:
- DevContainer configuration with Jekyll base image and Node.js LTS support
- VSCode task definitions for serving and building the Jekyll site
- Line ending normalization for shell scripts via
.gitattributes - Repository metadata added to Jekyll config
Reviewed changes
Copilot reviewed 7 out of 8 changed files in this pull request and generated 9 comments.
Show a summary per file
| File | Description |
|---|---|
| docs/.devcontainer/devcontainer.json | Main devcontainer configuration defining the build, port forwarding, and post-creation commands |
| docs/.devcontainer/Dockerfile | Docker configuration using the official Jekyll devcontainer with Node.js |
| docs/.devcontainer/base.Dockerfile | Unused alternative Dockerfile (not referenced in configuration) |
| docs/.devcontainer/post-create.sh | Shell script to install bundler and dependencies after container creation |
| docs/.vscode/tasks.json | VSCode task definitions for serving and building Jekyll site |
| docs/.gitattributes | Line ending normalization configuration for shell scripts |
| docs/_config.yml | Added repository metadata for GitHub Pages integration |
| .gitignore | Removed .devcontainer ignore entry to allow checking in the devcontainer configuration |
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| "kind": "test", | ||
| "isDefault": true | ||
| }, | ||
| "isBackground": true, |
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Trailing comma after "isBackground: true" should be removed. JSON does not allow trailing commas in standard parsers, although some tools may be lenient. For consistency with the root .vscode/tasks.json which doesn't use trailing commas, and to ensure maximum compatibility, this should be removed.
| "VARIANT": "bullseye", | ||
| // Enable Node.js: pick the latest LTS version | ||
| "NODE_VERSION": "lts/*" | ||
| } |
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Trailing whitespace after the closing brace. This should be removed for consistency.
| } | |
| } |
| LANGUAGE=en_US:en \ | ||
| TZ=Etc/UTC \ | ||
| LC_ALL=en_US.UTF-8 \ | ||
| LANG=en_US.UTF-8 \ |
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The LANG environment variable is set twice (lines 7 and 11) with the same value. The duplicate on line 11 should be removed.
| LANG=en_US.UTF-8 \ |
| # [Choice] Debian OS version (use 2.7-bullseye on local arm64/Apple Silicon): 2.7-bullseye, 2.7-buster | ||
| ARG VARIANT=2.7-bullseye | ||
| FROM mcr.microsoft.com/vscode/devcontainers/ruby:${VARIANT} | ||
| COPY library-scripts/meta.env /usr/local/etc/vscode-dev-containers | ||
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| # ENV Variables required by Jekyll | ||
| ENV LANG=en_US.UTF-8 \ | ||
| LANGUAGE=en_US:en \ | ||
| TZ=Etc/UTC \ | ||
| LC_ALL=en_US.UTF-8 \ | ||
| LANG=en_US.UTF-8 \ | ||
| LANGUAGE=en_US | ||
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| # Install bundler, latest jekyll, and github-pages for older jekyll | ||
| RUN gem install bundler jekyll github-pages | ||
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| # [Choice] Node.js version: none, lts/*, 16, 14, 12, 10 | ||
| ARG NODE_VERSION="none" | ||
| RUN if [ "${NODE_VERSION}" != "none" ]; then su vscode -c "umask 0002 && . /usr/local/share/nvm/nvm.sh && nvm install ${NODE_VERSION} 2>&1"; fi | ||
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| # [Optional] Uncomment this section to install additional OS packages. | ||
| # RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \ | ||
| # && apt-get -y install --no-install-recommends <your-package-list-here> | ||
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| # [Optional] Uncomment this line to install global node packages. | ||
| # RUN su vscode -c "source /usr/local/share/nvm/nvm.sh && npm install -g <your-package-here>" 2>&1 |
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The base.Dockerfile file is not referenced anywhere in the devcontainer configuration. The devcontainer.json uses "Dockerfile" (not "base.Dockerfile"), and Dockerfile doesn't reference base.Dockerfile either. This file appears to be unused and should either be removed or properly integrated into the build configuration if it was intended to be used.
| # [Choice] Debian OS version (use 2.7-bullseye on local arm64/Apple Silicon): 2.7-bullseye, 2.7-buster | ||
| ARG VARIANT=2.7-bullseye | ||
| FROM mcr.microsoft.com/vscode/devcontainers/ruby:${VARIANT} | ||
| COPY library-scripts/meta.env /usr/local/etc/vscode-dev-containers |
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The base.Dockerfile references "library-scripts/meta.env" which does not exist in the repository. If this file is intended to be used (though it currently appears unused), this COPY instruction would fail during build.
| COPY library-scripts/meta.env /usr/local/etc/vscode-dev-containers |
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| # Install the version of Bundler. | ||
| if [ -f Gemfile.lock ] && grep "BUNDLED WITH" Gemfile.lock > /dev/null; then | ||
| cat Gemfile.lock | tail -n 2 | grep -C2 "BUNDLED WITH" | tail -n 1 | xargs gem install bundler -v |
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The command pipeline to extract the bundler version is overly complex and potentially fragile. The use of "grep -C2" (2 context lines) followed by "tail -n 1" to get the version number is convoluted. A simpler and more robust approach would be: "grep -A 1 'BUNDLED WITH' Gemfile.lock | tail -n 1 | xargs gem install bundler -v". This eliminates the unnecessary "cat" and the confusing use of context lines.
| cat Gemfile.lock | tail -n 2 | grep -C2 "BUNDLED WITH" | tail -n 1 | xargs gem install bundler -v | |
| grep -A 1 "BUNDLED WITH" Gemfile.lock | tail -n 1 | xargs gem install bundler -v |
| "kind": "build", | ||
| "isDefault": true | ||
| }, | ||
| } |
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Trailing comma after the closing brace should be removed. JSON does not allow trailing commas in standard parsers. For consistency with the root .vscode/tasks.json which doesn't use trailing commas, and to ensure maximum compatibility, this should be removed.
| "group": { | ||
| "kind": "test", | ||
| "isDefault": true |
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The PR description states that contributors can "run the default task (F5)" but F5 is typically the keyboard shortcut for debugging/running, not for executing tasks. The "Serve" task is configured as a "test" task (not a build task), and default tasks are typically run via the Command Palette or Ctrl+Shift+P > "Tasks: Run Task" or Ctrl+Shift+B for build tasks. Consider either: 1) updating the PR description to reflect the correct way to run the task, or 2) changing the task configuration to use "kind": "build" instead of "kind": "test" so it can be run with Ctrl+Shift+B, or 3) adding a launch.json configuration that runs this task when F5 is pressed.
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| // For format details, see https://aka.ms/devcontainer.json. For config options, see the README at: | |||
| // https://github.com/microsoft/vscode-dev-containers/tree/v0.205.2/containers/jekyll | |||
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The reference URL points to the deprecated vscode-dev-containers repository at a specific old version (v0.205.2 from 2021). Microsoft deprecated this repository in favor of the devcontainers organization. While the URL may still work for reference, consider updating to point to current documentation at https://containers.dev or https://github.com/devcontainers/templates for a more future-proof reference.
| // https://github.com/microsoft/vscode-dev-containers/tree/v0.205.2/containers/jekyll | |
| // https://github.com/devcontainers/templates/tree/main/src/jekyll |
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Adds VSCode devcontainer configuration for the Jekyll documentation site to provide a consistent, reproducible development environment.
Changes
post-create.sh.gitattributesfor shell scripts_config.ymlContributors can now open the
docsfolder in a container and run the default task (F5) to start the Jekyll server immediately.✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.