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Add much more comprehensive cache testing
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‎.github/workflows/cache-test.yml

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name: Caching tests
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on: [push, pull_request]
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# Ensure there's only a single version of this running in any repo, so one set
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# of tests won't create or destroy caches that interfere with another run.
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concurrency: caches
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jobs:
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clear-caches:
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runs-on: ubuntu-latest
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permissions:
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actions: write
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steps:
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# This will only delete up to 100 caches. That should be far more than
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# is ever needed.
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- name: Delete cache entries
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uses: actions/github-script@v6
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with:
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script: |
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const response = await github.rest.actions.getActionsCacheList({
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owner: context.repo.owner,
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repo: context.repo.repo,
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per_page: 100,
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key: 'cygwin-install-action-packages-'
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});
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for (const cache of response.data.actions_caches) {
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await github.rest.actions.deleteActionsCacheById({
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owner: context.repo.owner,
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repo: context.repo.repo,
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cache_id: cache.id
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});
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}
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test-caching:
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runs-on: windows-latest
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needs: clear-caches
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# Ordering is important here to ensure the correct things are in the
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# correct caches at the correct times.
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#
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# This also relies on having six Cygwin packages that don't have any
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# cross-dependencies (and ideally are small and have few dependencies of
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# their own), so we can distinguish what's cached at what step.
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#
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# We test for the correct behaviour in the following circumstances:
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#
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# option | saves | restores
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# ------------+---------+----------
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# disabled | no (1) | no (5)
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# enabled | yes (2) | yes (6)
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# saveonly | yes (3) | no (7)
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# restoreonly | no (4) | yes (8)
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steps:
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- name: Checkout
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uses: actions/checkout@v3
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- name: Install Cygwin + bash_completion, no caching
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uses: ./
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with:
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packages: bash-completion
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package-cache: disabled
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- name: Delete the Cygwin installation and downloaded packages
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run: |
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Remove-Item -Force -Recurse C:\cygwin
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Remove-Item -Force -Recurse C:\cygwin-packages
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Remove-Item -Force -Recurse C:\cygwin-packages-checksum.*
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- name: Install Cygwin + brotli, with caching
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uses: ./
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with:
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packages: brotli
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package-cache: enabled
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# This assumes 6 and tests 1
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- name: Ensure bash-completion not downloaded
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shell: C:\cygwin\bin\bash.exe --noprofile --norc -e -o pipefail -o igncr {0}
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run: |
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for file in /cygdrive/c/cygwin-packages/*/*/*/*/bash-completion-*.tar.*; do
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[[ -f "$file" ]] && exit 1
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done
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exit 0
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- name: Delete the Cygwin installation and downloaded packages
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run: |
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Remove-Item -Force -Recurse C:\cygwin
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Remove-Item -Force -Recurse C:\cygwin-packages
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Remove-Item -Force -Recurse C:\cygwin-packages-checksum.*
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- name: Install Cygwin + libyajl2, with caching
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uses: ./
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with:
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packages: libyajl2
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package-cache: enabled
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# This tests 2 and 6
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- name: Ensure brotli downloaded
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shell: C:\cygwin\bin\bash.exe --noprofile --norc -e -o pipefail -o igncr {0}
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run: |
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for file in /cygdrive/c/cygwin-packages/*/*/*/*/brotli-*.tar.*; do
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[[ -f "$file" ]] && exit 0
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done
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exit 1
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- name: Delete the Cygwin installation and downloaded packages
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run: |
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Remove-Item -Force -Recurse C:\cygwin
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Remove-Item -Force -Recurse C:\cygwin-packages
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Remove-Item -Force -Recurse C:\cygwin-packages-checksum.*
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- name: Install Cygwin + mksh, saveonly
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uses: ./
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with:
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packages: mksh
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package-cache: saveonly
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# This assumes 2 and tests 7
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- name: Ensure libyajl2 not downloaded
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shell: C:\cygwin\bin\bash.exe --noprofile --norc -e -o pipefail -o igncr {0}
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run: |
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for file in /cygdrive/c/cygwin-packages/*/*/*/*/libyajl2-*.tar.*; do
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[[ -f "$file" ]] && exit 1
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done
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exit 0
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- name: Delete the Cygwin installation and downloaded packages
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run: |
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Remove-Item -Force -Recurse C:\cygwin
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Remove-Item -Force -Recurse C:\cygwin-packages
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Remove-Item -Force -Recurse C:\cygwin-packages-checksum.*
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- name: Install Cygwin + libgif7, restoreonly
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uses: ./
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with:
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packages: libgif7
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package-cache: restoreonly
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# This tests 3 and 8
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- name: Ensure mksh downloaded
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shell: C:\cygwin\bin\bash.exe --noprofile --norc -e -o pipefail -o igncr {0}
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run: |
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for file in /cygdrive/c/cygwin-packages/*/*/*/*/mksh-*.tar.*; do
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[[ -f "$file" ]] && exit 1
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done
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exit 0
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- name: Delete the Cygwin installation and downloaded packages
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run: |
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Remove-Item -Force -Recurse C:\cygwin
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Remove-Item -Force -Recurse C:\cygwin-packages
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Remove-Item -Force -Recurse C:\cygwin-packages-checksum.*
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- name: Install Cygwin, restoreonly
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uses: ./
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with:
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package-cache: restoreonly
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# This assumes 8 and tests 4
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- name: Ensure libgif7 not downloaded
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shell: C:\cygwin\bin\bash.exe --noprofile --norc -e -o pipefail -o igncr {0}
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run: |
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for file in /cygdrive/c/cygwin-packages/*/*/*/*/libgif7-*.tar.*; do
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[[ -f "$file" ]] && exit 1
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done
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exit 0
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- name: Delete the Cygwin installation and downloaded packages
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run: |
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Remove-Item -Force -Recurse C:\cygwin
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Remove-Item -Force -Recurse C:\cygwin-packages
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Remove-Item -Force -Recurse C:\cygwin-packages-checksum.*
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- name: Install Cygwin, caching disabled
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uses: ./
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with:
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package-cache: disabled
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# This assumes 3 and tests 5
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- name: Ensure mksh not downloaded
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shell: C:\cygwin\bin\bash.exe --noprofile --norc -e -o pipefail -o igncr {0}
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run: |
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for file in /cygdrive/c/cygwin-packages/*/*/*/*/mksh-*.tar.*; do
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[[ -f "$file" ]] && exit 1
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done
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exit 0
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- name: Delete the Cygwin installation and downloaded packages
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run: |
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Remove-Item -Force -Recurse C:\cygwin
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Remove-Item -Force -Recurse C:\cygwin-packages
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Remove-Item -Force -Recurse C:\cygwin-packages-checksum.*

‎.github/workflows/test.yml

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shell: bash
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env:
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SHELLOPTS: igncr
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caching:
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runs-on: windows-latest
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name: 'Test use of the cache'
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steps:
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- run: git config --global core.autocrlf input
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- uses: actions/checkout@v2
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- name: Install Cygwin and bash-completion
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uses: ./
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with:
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packages: bash-completion
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package-cache: enabled
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add-to-path: false
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- name: Delete Cygwin installation and cache
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run: |
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Remove-Item -Force -Recurse C:\cygwin
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Remove-Item -Force -Recurse C:\cygwin-packages
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- name: Reinstall Cygwin only
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uses: ./
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with:
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package-cache-key: enabled
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add-to-path: false
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- name: Find bash-completion in the package cache
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shell: C:\cygwin\bin\bash.exe --noprofile --norc -e -o pipefail -o igncr {0}
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run: |
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for file in /cygdrive/c/cygwin-packages/*/*/*/bash-completion/bash-completion-*.tar.*; do
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[[ -f "$file" ]] && exit 0 # File actually exists
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done
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exit 1 # No such downloaded file

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