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ci(workflow): add PGP key and checksum signing #682

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142cf76
ci(workflow): remove paths from checksum filenames
xmready Jan 14, 2026
783bc33
ci(workflow): add pgp signing to build-and-release
xmready Jan 16, 2026
4498abf
Merge branch 'master' into feature/signed-checksums
xmready Jan 27, 2026
1ed31be
ci(workflow): fix signature file output
xmready Jan 27, 2026
3f2dee6
ci(workflow): remove pgp signing key when done
xmready Feb 7, 2026
63955c3
ci(workflow): fix variable syntax for PGP_FINGERPRINT
xmready Feb 7, 2026
8b87bfb
ci(workflow): fix variable syntax, again
xmready Feb 7, 2026
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41 changes: 37 additions & 4 deletions .github/workflows/build-and-release.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@ jobs:
apk_release_path: ${{ steps.release_artifact.outputs.apk_release_path }}
apk_fdroid_path: ${{ steps.fdroid_artifact.outputs.apk_fdroid_path }}
checksums_path: ${{ steps.checksums.outputs.checksums_path }}
signature_path: ${{ steps.signature.outputs.signature_path }}

steps:
- name: Checkout source
Expand Down Expand Up @@ -171,9 +172,34 @@ jobs:
id: checksums
shell: bash
run: |
find . -name '*.apk' -type f -exec sha256sum {} \; > checksums.txt
set -euo pipefail
find . -name '*.apk' -type f -exec bash -c 'sha256sum "$1" | awk -v bn="$(basename $1)" "{print \$1, bn}"' _ {} \; > checksums.txt
echo "checksums_path=checksums.txt" >> "$GITHUB_OUTPUT"

- name: Import PGP key
shell: bash
run: |
set -euo pipefail
echo "$PGP_PRIVATE_KEY" | gpg --import --batch --yes
env:
PGP_PRIVATE_KEY: ${{ secrets.PGP_PRIVATE_KEY }}

- name: Sign checksums file
id: signature
shell: bash
run: |
set -euo pipefail
gpg --detach-sign --armor --batch --yes --passphrase "$PGP_PASSPHRASE" --output checksums.txt.sig checksums.txt
echo "signature_path=checksums.txt.sig" >> "$GITHUB_OUTPUT"
env:
PGP_PASSPHRASE: ${{ secrets.PGP_PASSPHRASE }}

- name: Verify checksums signature
shell: bash
run: |
set -euo pipefail
gpg --verify checksums.txt.sig checksums.txt

- name: Upload all build outputs
uses: actions/upload-artifact@v4
with:
Expand All @@ -182,6 +208,7 @@ jobs:
${{ steps.release_artifact.outputs.apk_release_path }}
${{ steps.fdroid_artifact.outputs.apk_fdroid_path }}
${{ steps.checksums.outputs.checksums_path }}
${{ steps.signature.outputs.signature_path }}

generate_release_notes:
needs: build
Expand Down Expand Up @@ -231,6 +258,7 @@ jobs:
files: |
downloaded/**/*.apk
downloaded/*.txt
downloaded/*.sig
fail_on_unmatched_files: true
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
Expand Down Expand Up @@ -262,7 +290,12 @@ jobs:
user_name: github-actions[bot]
user_email: github-actions[bot]@users.noreply.github.com

- name: Cleanup signing key
- name: Cleanup signing keys
if: always()
run: rm -f presentation/my-release-key.keystore

shell: bash
run: |
set -euo pipefail
rm -f presentation/my-release-key.keystore
gpg --batch --yes --delete-secret-keys "$PGP_FINGERPRINT"
env:
PGP_FINGERPRINT: ${{ secrets.PGP_FINGERPRINT }}