action: support for GPG signing

.forgejo/workflows/integration.yml

@@ -4,6 +4,7 @@ jobs:
     runs-on: self-hosted
     steps:
       - uses: actions/checkout@v3
+
       - id: forgejo
         uses: https://code.forgejo.org/actions/setup-forgejo@v1
         with:
@@ -11,21 +12,21 @@ jobs:
           password: admin1234
           image-version: 1.19
 
-      - name: Upload
+      - name: Make the forgejo-release action available for testing
         run: |
           forgejo-test-helper.sh push_self_action http://testuser:admin1234@${{ steps.forgejo.outputs.host-port }} testuser forgejo-release vTest
 
-      - name: Upload and download
+      - name: Actions tests from testdata/upload-download/.forgejo/workflows
         run: |
           export FORGEJO_RUNNER_LOGS="${{ steps.forgejo.outputs.runner-logs }}"
           forgejo-test-helper.sh run_workflow testdata/upload-download http://testuser:admin1234@${{ steps.forgejo.outputs.host-port }} testuser upload-download forgejo-release "${{ steps.forgejo.outputs.token }}"
 
-      - name: Nested upload and download
+      - name: Actions tests from testdata/nested-upload-download/.forgejo/workflows
         run: |
           export FORGEJO_RUNNER_LOGS="${{ steps.forgejo.outputs.runner-logs }}"
           forgejo-test-helper.sh run_workflow testdata/nested-upload-download http://testuser:admin1234@${{ steps.forgejo.outputs.host-port }} testuser nested-upload-download forgejo-release "${{ steps.forgejo.outputs.token }}"
 
-      - name: Self test
+      - name: Integration tests of the supporting script forgejo-release.sh
         run: |
           set -ex
           export FORGEJO="${{ steps.forgejo.outputs.url }}"

action.yml

@@ -75,5 +75,13 @@ runs:
 
         export RETRY="${{ inputs.download-retry }}"
 
+        export TMP_DIR=$(mktemp -d)
+        trap "rm -fr $TMP_DIR" EXIT
+
+        echo -n "${{ inputs.gpg-private-key }}" > $TMP_DIR/gpg-private-key
+        export GPG_PRIVATE_KEY=$TMP_DIR/gpg-private-key
+        echo -n "${{ inputs.gpg-passphrase }}" > $TMP_DIR/gpg-passphrase
+        export GPG_PASSPHRASE="$TMP_DIR/gpg-passphrase"
+
         forgejo-release.sh ${{ inputs.direction }}
       shell: bash

testdata/nested-upload-download/.forgejo/workflows/test.yml

@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: MIT
-name: Upload & Download a Forgejo Release
+
+name: Upload (and download) a release to (and from) a project found in a Forgejo instance that is different from the one running the workflow
 on: [push]
 jobs:
   setup-forgejo:

testdata/upload-download/.forgejo/workflows/gpg-no-passphrase.yml

@@ -0,0 +1,117 @@
+# SPDX-License-Identifier: MIT
+
+name: Upload/download a signed release (no GPG passphrase)
+on: [push]
+env:
+  gpg_private_key: |
+    -----BEGIN PGP PRIVATE KEY BLOCK-----
+    
+    lQVYBGRwcNcBDADUZUxCbjw0hOtMaLIYhEbgYFR2Oyxz8IDJTVALuLGQbHnLM6La
+    IVxGwk9CgxX8vP9pN3Fy+uX+KInV41bLGd30qPDvqCuAbAo4bAT0Sg/fN3A7fuSX
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+    =5CPG
+    -----END PGP PRIVATE KEY BLOCK-----
+
+jobs:
+  upload-gpg-no-passphrase:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - if: ${{ !startsWith(github.ref, 'refs/tags/v') }}
+        id: release-upload
+        uses: SELF@vTest
+        with:
+          direction: upload
+          tag: v1.2
+          token: FORGEJO_TOKEN
+          release-dir: upload-dir
+          release-notes: "RELEASE NOTES"
+          gpg-private-key: ${{ env.gpg_private_key }}
+          verbose: true
+      - if: ${{ !startsWith(github.ref, 'refs/tags/v') }}
+        id: release-download
+        uses: SELF@vTest
+        with:
+          direction: download
+          tag: v1.2
+          token: FORGEJO_TOKEN
+          release-dir: download-dir
+          verbose: true
+      - if: ${{ !startsWith(github.ref, 'refs/tags/v') }}
+        run: |
+          test "$(find download-dir -name '*.asc')"
+          diff -u upload-dir download-dir

testdata/upload-download/.forgejo/workflows/gpg.yml

@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: MIT
+
+name: Upload/download a signed release (with a GPG passphrase)
+on: [push]
+env:
+  gpg_passphrase: admin1234
+  gpg_private_key: |
+    -----BEGIN PGP PRIVATE KEY BLOCK-----
+    
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+    u0/68b7Y/JOUxKSag5r3PyyDWyJibRGi2ILwKogL5D4YdAtZYUNemmK9Is31NIs/
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+    brSaC5ICGKIpzsIf6lIp6Wrn7smsGh9BI+dH19prXQ5lT6Iv+IFZmNiDGXtVzOOK
+    Y8VgqwJmf/XwjgH2dod3X61ts3krtnZ2znCgrz08NRxG4G9ok8Fa5fLCrZBWi7UU
+    4ZH63rS9optmqEMzwCwQ94U0glU8C9Hc44MVCSrrrD2+/H/PTFVr37iwBugZsDq4
+    4gUTyGBYumnzTVyi2ZbJn89Amd8fl280QWSkdebmljnk4OjlTZbXkRGiIu65ggr9
+    ikg11TRlPD0L9NTo8w2OtjoYXr50xL1odyNlz6RKcQlX80EjKMXvVxNE32J4JCBj
+    tHrqiTDCs1bdXTh2xCvF0DatJMeUn3/WDn6UYjZzlZvZCOcjQLrPgJplJowLwd96
+    YaUfZ11WNAgNy8vZjUroMNyD2J+GsLr+QZOqFRP362+Juj5MqANXAuKEQ4qzs2Fv
+    /Z6cUYKuENmsNDY8ORG7ON95AFl5i0daP7+EoHDMb7+tyG54JxE4Szxhe4skRXXr
+    =Ze5I
+    -----END PGP PRIVATE KEY BLOCK-----
+
+jobs:
+  upload-gpg:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - if: ${{ !startsWith(github.ref, 'refs/tags/v') }}
+        id: release-upload
+        uses: SELF@vTest
+        with:
+          direction: upload
+          tag: v1.1
+          token: FORGEJO_TOKEN
+          release-dir: upload-dir
+          release-notes: "RELEASE NOTES"
+          gpg-private-key: ${{ env.gpg_private_key }}
+          gpg-passphrase: ${{ env.gpg_passphrase }}
+          verbose: true
+      - if: ${{ !startsWith(github.ref, 'refs/tags/v') }}
+        id: release-download
+        uses: SELF@vTest
+        with:
+          direction: download
+          tag: v1.1
+          token: FORGEJO_TOKEN
+          release-dir: download-dir
+          verbose: true
+      - if: ${{ !startsWith(github.ref, 'refs/tags/v') }}
+        run: |
+          test "$(find download-dir -name '*.asc')"
+          diff -u upload-dir download-dir

testdata/upload-download/.forgejo/workflows/test.yml

@@ -1,12 +1,9 @@
-#
-# The following:
-# if: ${{ !startsWith(github.ref, 'refs/tags/v') }}
-# is a workaround until https://codeberg.org/forgejo/forgejo/issues/608 is fixed
-#
-name: Upload & Download a Forgejo Release
+# SPDX-License-Identifier: MIT
+
+name: Upload (and download) a release to (and from) the project that runs the workflow
 on: [push]
 jobs:
-  setup-forgejo:
+  upload-download:
     runs-on: self-hosted
     steps:
       - uses: actions/checkout@v3