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SpomkySpomky
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Add GitHub Action to auto-switch default branch on new tags
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‎src/Bundle/.github/workflows/auto-switch-default-branch.yml‎

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name: Auto-switch default branch on new tag
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on:
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push:
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tags:
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- '*.*.*' # tags du type a.b.c (1.2.3, 2.0.0, etc.)
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jobs:
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update-default-branch:
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runs-on: ubuntu-latest
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permissions:
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contents: write # nécessaire pour modifier le repo via l'API
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steps:
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- name: Parse tag and compute target branch
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id: vars
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run: |
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ref="${GITHUB_REF#refs/tags/}" # ex: 1.2.3 ou 1.2.3.
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# On enlève un éventuel '.' final (au cas où : 1.2.3. -> 1.2.3)
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version="${ref%.}"
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echo "Tag ref: $ref"
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echo "Version: $version"
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IFS='.' read -r major minor patch <<< "$version"
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echo "Major: $major"
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echo "Minor: $minor"
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echo "Patch: $patch"
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target_branch="${major}.${minor}.x"
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echo "Target branch: $target_branch"
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echo "major=$major" >> "$GITHUB_OUTPUT"
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echo "minor=$minor" >> "$GITHUB_OUTPUT"
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echo "target_branch=$target_branch" >> "$GITHUB_OUTPUT"
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- name: Get current default branch
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id: repo
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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run: |
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default_branch=$(gh repo view "${GITHUB_REPOSITORY}" --json defaultBranchRef --jq .defaultBranchRef.name)
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echo "Current default branch: $default_branch"
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echo "default_branch=$default_branch" >> "$GITHUB_OUTPUT"
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- name: Check target branch exists
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id: exists
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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run: |
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target="${{ steps.vars.outputs.target_branch }}"
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echo "Checking if branch $target exists..."
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if gh api "repos/${GITHUB_REPOSITORY}/branches/$target" >/dev/null 2>&1; then
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echo "Branch $target exists."
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echo "exists=true" >> "$GITHUB_OUTPUT"
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else
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echo "Branch $target does not exist, skipping."
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echo "exists=false" >> "$GITHUB_OUTPUT"
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fi
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- name: Decide whether to switch
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id: decide
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run: |
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target="${{ steps.vars.outputs.target_branch }}"
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current="${{ steps.repo.outputs.default_branch }}"
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major="${{ steps.vars.outputs.major }}"
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minor="${{ steps.vars.outputs.minor }}"
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echo "Current default: $current"
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echo "Target branch: $target"
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echo "Tag version: $major.$minor"
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# Si le target branch n'existe pas -> on ne fait rien
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if [ "${{ steps.exists.outputs.exists }}" != "true" ]; then
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echo "switch_needed=false" >> "$GITHUB_OUTPUT"
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exit 0
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fi
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# On ne s'intéresse qu'aux default branches de type a.b.x
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if [[ "$current" =~ ^([0-9]+)\.([0-9]+)\.x$ ]]; then
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current_major="${BASH_REMATCH[1]}"
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current_minor="${BASH_REMATCH[2]}"
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echo "Current parsed version: $current_major.$current_minor"
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else
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echo "Current default branch is not of the form a.b.x, skipping."
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echo "switch_needed=false" >> "$GITHUB_OUTPUT"
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exit 0
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fi
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# Comparaison (major, minor)
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if [ "$major" -gt "$current_major" ] || { [ "$major" -eq "$current_major" ] && [ "$minor" -gt "$current_minor" ]; }; then
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echo "New version $major.$minor is higher than $current_major.$current_minor → will switch."
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echo "switch_needed=true" >> "$GITHUB_OUTPUT"
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else
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echo "New version $major.$minor is not higher than $current_major.$current_minor → no switch."
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echo "switch_needed=false" >> "$GITHUB_OUTPUT"
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fi
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- name: Update default branch
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if: steps.decide.outputs.switch_needed == 'true'
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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run: |
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target="${{ steps.vars.outputs.target_branch }}"
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echo "Switching default branch to: $target"
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gh api -X PATCH "repos/${GITHUB_REPOSITORY}" \
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-f default_branch="$target"

‎src/Experimental/.github/workflows/auto-switch-default-branch.yml‎

Lines changed: 110 additions & 0 deletions
Original file line numberDiff line numberDiff line change
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1+
name: Auto-switch default branch on new tag
2+
3+
on:
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push:
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tags:
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- '*.*.*' # tags du type a.b.c (1.2.3, 2.0.0, etc.)
7+
8+
jobs:
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update-default-branch:
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runs-on: ubuntu-latest
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permissions:
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contents: write # nécessaire pour modifier le repo via l'API
13+
14+
steps:
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- name: Parse tag and compute target branch
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id: vars
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run: |
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ref="${GITHUB_REF#refs/tags/}" # ex: 1.2.3 ou 1.2.3.
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# On enlève un éventuel '.' final (au cas où : 1.2.3. -> 1.2.3)
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version="${ref%.}"
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echo "Tag ref: $ref"
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echo "Version: $version"
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IFS='.' read -r major minor patch <<< "$version"
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echo "Major: $major"
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echo "Minor: $minor"
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echo "Patch: $patch"
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target_branch="${major}.${minor}.x"
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echo "Target branch: $target_branch"
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echo "major=$major" >> "$GITHUB_OUTPUT"
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echo "minor=$minor" >> "$GITHUB_OUTPUT"
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echo "target_branch=$target_branch" >> "$GITHUB_OUTPUT"
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- name: Get current default branch
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id: repo
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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run: |
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default_branch=$(gh repo view "${GITHUB_REPOSITORY}" --json defaultBranchRef --jq .defaultBranchRef.name)
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echo "Current default branch: $default_branch"
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echo "default_branch=$default_branch" >> "$GITHUB_OUTPUT"
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- name: Check target branch exists
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id: exists
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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run: |
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target="${{ steps.vars.outputs.target_branch }}"
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echo "Checking if branch $target exists..."
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if gh api "repos/${GITHUB_REPOSITORY}/branches/$target" >/dev/null 2>&1; then
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echo "Branch $target exists."
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echo "exists=true" >> "$GITHUB_OUTPUT"
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else
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echo "Branch $target does not exist, skipping."
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echo "exists=false" >> "$GITHUB_OUTPUT"
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fi
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- name: Decide whether to switch
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id: decide
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run: |
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target="${{ steps.vars.outputs.target_branch }}"
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current="${{ steps.repo.outputs.default_branch }}"
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major="${{ steps.vars.outputs.major }}"
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minor="${{ steps.vars.outputs.minor }}"
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echo "Current default: $current"
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echo "Target branch: $target"
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echo "Tag version: $major.$minor"
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# Si le target branch n'existe pas -> on ne fait rien
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if [ "${{ steps.exists.outputs.exists }}" != "true" ]; then
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echo "switch_needed=false" >> "$GITHUB_OUTPUT"
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exit 0
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fi
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# On ne s'intéresse qu'aux default branches de type a.b.x
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if [[ "$current" =~ ^([0-9]+)\.([0-9]+)\.x$ ]]; then
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current_major="${BASH_REMATCH[1]}"
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current_minor="${BASH_REMATCH[2]}"
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echo "Current parsed version: $current_major.$current_minor"
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else
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echo "Current default branch is not of the form a.b.x, skipping."
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echo "switch_needed=false" >> "$GITHUB_OUTPUT"
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exit 0
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fi
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# Comparaison (major, minor)
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if [ "$major" -gt "$current_major" ] || { [ "$major" -eq "$current_major" ] && [ "$minor" -gt "$current_minor" ]; }; then
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echo "New version $major.$minor is higher than $current_major.$current_minor → will switch."
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echo "switch_needed=true" >> "$GITHUB_OUTPUT"
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else
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echo "New version $major.$minor is not higher than $current_major.$current_minor → no switch."
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echo "switch_needed=false" >> "$GITHUB_OUTPUT"
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fi
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- name: Update default branch
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if: steps.decide.outputs.switch_needed == 'true'
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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run: |
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target="${{ steps.vars.outputs.target_branch }}"
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echo "Switching default branch to: $target"
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gh api -X PATCH "repos/${GITHUB_REPOSITORY}" \
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-f default_branch="$target"

‎src/Library/.github/workflows/auto-switch-default-branch.yml‎

Lines changed: 110 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,110 @@
1+
name: Auto-switch default branch on new tag
2+
3+
on:
4+
push:
5+
tags:
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- '*.*.*' # tags du type a.b.c (1.2.3, 2.0.0, etc.)
7+
8+
jobs:
9+
update-default-branch:
10+
runs-on: ubuntu-latest
11+
permissions:
12+
contents: write # nécessaire pour modifier le repo via l'API
13+
14+
steps:
15+
- name: Parse tag and compute target branch
16+
id: vars
17+
run: |
18+
ref="${GITHUB_REF#refs/tags/}" # ex: 1.2.3 ou 1.2.3.
19+
# On enlève un éventuel '.' final (au cas où : 1.2.3. -> 1.2.3)
20+
version="${ref%.}"
21+
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echo "Tag ref: $ref"
23+
echo "Version: $version"
24+
25+
IFS='.' read -r major minor patch <<< "$version"
26+
27+
echo "Major: $major"
28+
echo "Minor: $minor"
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echo "Patch: $patch"
30+
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target_branch="${major}.${minor}.x"
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echo "Target branch: $target_branch"
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echo "major=$major" >> "$GITHUB_OUTPUT"
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echo "minor=$minor" >> "$GITHUB_OUTPUT"
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echo "target_branch=$target_branch" >> "$GITHUB_OUTPUT"
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- name: Get current default branch
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id: repo
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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run: |
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default_branch=$(gh repo view "${GITHUB_REPOSITORY}" --json defaultBranchRef --jq .defaultBranchRef.name)
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echo "Current default branch: $default_branch"
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echo "default_branch=$default_branch" >> "$GITHUB_OUTPUT"
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- name: Check target branch exists
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id: exists
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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run: |
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target="${{ steps.vars.outputs.target_branch }}"
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echo "Checking if branch $target exists..."
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if gh api "repos/${GITHUB_REPOSITORY}/branches/$target" >/dev/null 2>&1; then
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echo "Branch $target exists."
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echo "exists=true" >> "$GITHUB_OUTPUT"
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else
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echo "Branch $target does not exist, skipping."
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echo "exists=false" >> "$GITHUB_OUTPUT"
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fi
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- name: Decide whether to switch
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id: decide
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run: |
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target="${{ steps.vars.outputs.target_branch }}"
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current="${{ steps.repo.outputs.default_branch }}"
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major="${{ steps.vars.outputs.major }}"
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minor="${{ steps.vars.outputs.minor }}"
70+
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echo "Current default: $current"
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echo "Target branch: $target"
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echo "Tag version: $major.$minor"
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# Si le target branch n'existe pas -> on ne fait rien
76+
if [ "${{ steps.exists.outputs.exists }}" != "true" ]; then
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echo "switch_needed=false" >> "$GITHUB_OUTPUT"
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exit 0
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fi
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# On ne s'intéresse qu'aux default branches de type a.b.x
82+
if [[ "$current" =~ ^([0-9]+)\.([0-9]+)\.x$ ]]; then
83+
current_major="${BASH_REMATCH[1]}"
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current_minor="${BASH_REMATCH[2]}"
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echo "Current parsed version: $current_major.$current_minor"
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else
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echo "Current default branch is not of the form a.b.x, skipping."
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echo "switch_needed=false" >> "$GITHUB_OUTPUT"
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exit 0
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fi
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# Comparaison (major, minor)
93+
if [ "$major" -gt "$current_major" ] || { [ "$major" -eq "$current_major" ] && [ "$minor" -gt "$current_minor" ]; }; then
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echo "New version $major.$minor is higher than $current_major.$current_minor → will switch."
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echo "switch_needed=true" >> "$GITHUB_OUTPUT"
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else
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echo "New version $major.$minor is not higher than $current_major.$current_minor → no switch."
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echo "switch_needed=false" >> "$GITHUB_OUTPUT"
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fi
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- name: Update default branch
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if: steps.decide.outputs.switch_needed == 'true'
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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run: |
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target="${{ steps.vars.outputs.target_branch }}"
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echo "Switching default branch to: $target"
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gh api -X PATCH "repos/${GITHUB_REPOSITORY}" \
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-f default_branch="$target"

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