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https://github.com/kuhyx/utils.git
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Krzysztof kuhy Rudnicki
ba6f8b09fd
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subosito/flutter-action's cache is the whole SDK, 1.6 GB: ~38 s to restore on every Flutter job even on a hit, which alone kept them over a minute. This composite action caches a depth-1 clone of the release tag with only the host and web artifacts (393 MB zstd'd); verified locally that test, analyze --fatal-infos and build web run on it without lazy downloads. Release APK builds keep subosito, which they need for the Android engines. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01FBbkN4ZB4aUPJPzR2prRan
67 lines
2.7 KiB
YAML
67 lines
2.7 KiB
YAML
name: flutter-setup (slim)
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description: >-
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Flutter for gating jobs (analyze, test, web build) from a slim cached SDK:
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a depth-1 clone of the release tag plus host and web artifacts only.
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subosito/flutter-action caches the full 1.6 GB SDK, whose restore alone
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costs ~38 s per job even on a hit; this cache is 393 MB.
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Release (APK) builds keep subosito: they need the Android artifacts.
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inputs:
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flutter-version:
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description: Exact Flutter release tag, e.g. 3.47.6 (never a channel).
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required: true
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working-directory:
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description: The Flutter project, for keying and restoring its pub cache.
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default: "."
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runs:
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using: composite
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steps:
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- name: Restore the slim Flutter SDK
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id: sdk
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uses: actions/cache/restore@v4
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with:
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path: ~/sdk/flutter-slim
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key: flutter-slim-${{ inputs.flutter-version }}-${{ runner.os }}-${{ runner.arch }}-v1
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# Miss path only: build the SDK once per version, then save it. A depth-1
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# clone keeps .git at ~40 MB (the tool refuses to run without one).
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# precache pulls the Android engines even with --no-android; nothing a
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# gating job runs (test, analyze, build web) touches them, so they go,
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# along with the desktop profile/release engines. Measured: 393 MB
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# zstd'd, against 1642 MB for subosito's cache.
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- name: Build the slim SDK (cache miss)
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if: steps.sdk.outputs.cache-hit != 'true'
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shell: bash
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env:
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FLUTTER_VERSION: ${{ inputs.flutter-version }}
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run: |
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set -euo pipefail
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git clone --quiet --depth 1 --branch "$FLUTTER_VERSION" \
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https://github.com/flutter/flutter.git ~/sdk/flutter-slim
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~/sdk/flutter-slim/bin/flutter --disable-analytics >/dev/null
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~/sdk/flutter-slim/bin/flutter precache --web --no-android --no-ios
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engine=~/sdk/flutter-slim/bin/cache/artifacts/engine
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rm -rf "$engine"/android-* "$engine"/linux-x64-profile "$engine"/linux-x64-release
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~/sdk/flutter-slim/bin/flutter --version
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- name: Save the slim SDK
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if: steps.sdk.outputs.cache-hit != 'true'
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uses: actions/cache/save@v4
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with:
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path: ~/sdk/flutter-slim
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key: ${{ steps.sdk.outputs.cache-primary-key }}
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- name: Put flutter on PATH
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shell: bash
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run: |
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echo "$HOME/sdk/flutter-slim/bin" >> "$GITHUB_PATH"
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echo "PUB_CACHE=$HOME/.pub-cache" >> "$GITHUB_ENV"
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- name: Restore the pub cache
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uses: actions/cache@v4
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with:
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path: ~/.pub-cache
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key: pub-${{ inputs.flutter-version }}-${{ runner.os }}-${{ hashFiles(format('{0}/pubspec.lock', inputs.working-directory)) }}
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restore-keys: pub-${{ inputs.flutter-version }}-${{ runner.os }}-
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