new build workflow

.gitea/workflows/windows-build.yml

@@ -14,6 +14,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           submodules: recursive
+          fetch-depth: 0
 
       - name: Install dependencies
         run: |
@@ -49,21 +50,32 @@ jobs:
         run: |
           dependencies="$(x86_64-w64-mingw32-objdump -p build-win/bin/gitree.exe | sed -n 's/.*DLL Name: //p')"
           printf '%s\n' "$dependencies"
+
           if printf '%s\n' "$dependencies" | grep -Eqi 'lib(gcc|stdc\+\+|winpthread).*\.dll'; then
             echo "The executable still depends on a MinGW runtime DLL."
             exit 1
           fi
 
+      - name: Generate EXE name
+        run: |
+          repo_name="$(basename "${GITEA_REPOSITORY}")"
+          short_sha="$(printf '%s' "${GITEA_SHA}" | cut -c1-7)"
+
+          exe_name="${repo_name}-windows-x64-${GITEA_RUN_NUMBER}-${short_sha}.exe"
+
+          echo "EXE_NAME=${exe_name}" >> "$GITHUB_ENV"
+          echo "ARTIFACT_NAME=${repo_name}-windows-x64-${GITEA_RUN_NUMBER}-${short_sha}" >> "$GITHUB_ENV"
+
       - name: Prepare artifact
         run: |
           mkdir -p dist
-          cp build-win/bin/gitree.exe dist/Gitree-windows-x64.exe
+          cp build-win/bin/gitree.exe "dist/${EXE_NAME}"
 
       - name: Upload Windows build
         uses: actions/upload-artifact@v3
         with:
-          name: Gitree-windows-x64
-          path: dist/Gitree-windows-x64.exe
+          name: ${{ env.ARTIFACT_NAME }}
+          path: dist/${{ env.EXE_NAME }}
           if-no-files-found: error
 
       - name: Create prod release
@@ -80,15 +92,101 @@ jobs:
             exit 1
           fi
 
+          git fetch --tags --force
+
           short_sha="$(printf '%s' "$GITEA_SHA" | cut -c1-7)"
           tag="prod-${GITEA_RUN_NUMBER}-${short_sha}"
           api="${GITEA_SERVER_URL%/}/api/v1/repos/${GITEA_REPOSITORY}"
+          repo_url="${GITEA_SERVER_URL%/}/${GITEA_REPOSITORY}"
+
+          previous_tag="$(
+            curl --fail-with-body --silent --show-error \
+              -H "Authorization: token ${GITEA_TOKEN}" \
+              "${api}/releases?limit=50" |
+            jq -r '[.[] | select(.tag_name | startswith("prod-"))][0].tag_name // empty'
+          )"
+
+          if [ -n "$previous_tag" ]; then
+            range="${previous_tag}..${GITEA_SHA}"
+            echo "Generating release notes from ${previous_tag} to ${GITEA_SHA}"
+          else
+            range="${GITEA_SHA}"
+            echo "No previous prod release found. Generating release notes from current commit."
+          fi
+
+          {
+            echo "Automated Windows release from the prod branch."
+            echo
+
+            if [ -n "$previous_tag" ]; then
+              echo "## Changes since ${previous_tag}"
+            else
+              echo "## Changes"
+            fi
+
+            echo
+
+            commit_count="$(git rev-list --count "$range")"
+
+            if [ "$commit_count" -eq 0 ]; then
+              echo "- No commits found since the previous release."
+            else
+              git log "$range" \
+                --reverse \
+                --pretty=format:'%H%x1f%s' |
+              while IFS="$(printf '\037')" read -r hash subject; do
+                short="$(printf '%s' "$hash" | cut -c1-7)"
+                echo "- ([${short}](${repo_url}/commit/${hash})) ${subject}"
+              done
+            fi
+
+            echo
+            echo "## Authors"
+            echo
+            echo "Sorted by total lines added or removed."
+            echo
+
+            git log "$range" --numstat --format='author:%an <%ae>' |
+            awk '
+              /^author:/ {
+                author = substr($0, 8)
+                next
+              }
+
+              NF >= 3 {
+                added = ($1 == "-" ? 0 : $1)
+                removed = ($2 == "-" ? 0 : $2)
+
+                adds[author] += added
+                dels[author] += removed
+                churn[author] += added + removed
+              }
+
+              END {
+                for (a in churn) {
+                  printf "%d\t%d\t%d\t%s\n", churn[a], adds[a], dels[a], a
+                }
+              }
+            ' |
+            sort -nr |
+            while IFS="$(printf '\t')" read -r total added removed author; do
+              echo "- ${author} — ${total} lines changed (+${added} / -${removed})"
+            done
+          } > release-notes.md
 
           payload="$(jq -n \
             --arg tag "$tag" \
             --arg sha "$GITEA_SHA" \
-            --arg name "Gitree ${tag}" \
-            '{tag_name: $tag, target_commitish: $sha, name: $name, body: "Automated Windows release from the prod branch.", draft: false, prerelease: false}')"
+            --arg name "${ARTIFACT_NAME}" \
+            --rawfile body release-notes.md \
+            '{
+              tag_name: $tag,
+              target_commitish: $sha,
+              name: $name,
+              body: $body,
+              draft: false,
+              prerelease: false
+            }')"
 
           release="$(curl --fail-with-body --silent --show-error \
             -X POST \
@@ -96,10 +194,11 @@ jobs:
             -H "Content-Type: application/json" \
             --data "$payload" \
             "${api}/releases")"
+
           release_id="$(printf '%s' "$release" | jq -er '.id')"
 
           curl --fail-with-body --silent --show-error \
             -X POST \
             -H "Authorization: token ${GITEA_TOKEN}" \
-            -F "attachment=@dist/Gitree-windows-x64.exe" \
-            "${api}/releases/${release_id}/assets?name=Gitree-windows-x64.exe"
+            -F "attachment=@dist/${EXE_NAME}" \
+            "${api}/releases/${release_id}/assets?name=${EXE_NAME}"