ci: cherry-pick changes from PR #815

That PR got hard to review and confidently merge, so I'm cherry-picking
some of the good ideas from it in a format that feels more comfortable
to me. Thanks @vlakoff for the original PR!

Co-authored-by: vlakoff <544424+vlakoff@users.noreply.github.com>

.dockerignore

@@ -1,4 +1,7 @@
-scripts
-.github
 .editorconfig
-.pre-commit-hooks.yaml
+.gitignore
+/.git/
+/.github/
+/.pre-commit-hooks.yaml
+/scripts/
+/target/

.github/workflows/deploy.yml

@@ -3,7 +3,12 @@ name: deploy
 on:
   push:
     tags:
-      - "v*.*.*"
+      - v*.*.*
+
+concurrency:
+  # If we ever end up with two concurrent jobs for releasing the same tag, the former should be cancelled
+  group: release-${{ github.ref }}
+  cancel-in-progress: true
 
 permissions:
   actions: read
@@ -54,15 +59,15 @@ jobs:
 
       - name: Get the Oxipng version
         id: oxipngMeta
-        run:
-          echo "version=$(cargo metadata --format-version 1 --no-deps | jq -r '.packages[] | select(.name == "oxipng").version')"
-          >> "$GITHUB_OUTPUT"
+        run: >
+          echo "version=$(cargo metadata --format-version 1 --no-deps |
+          jq -r '.packages[] | select(.name == "oxipng").version')" >> "$GITHUB_OUTPUT"
 
       - name: Retrieve ${{ matrix.target }} binary
         uses: dawidd6/action-download-artifact@v21
         with:
           workflow: oxipng.yml
-          commit: ${{ env.GITHUB_SHA }}
+          commit: ${{ github.sha }}
           name: Oxipng binary (${{ matrix.target }})
           path: target
 

.github/workflows/docker.yml

@@ -2,9 +2,9 @@ name: docker
 on:
   push:
     branches:
-      - 'master'
+      - master
     tags:
-      - 'v*.*.*'
+      - v*.*.*
   pull_request:
     types:
       - opened
@@ -17,6 +17,12 @@ on:
         type: boolean
         default: true
 
+concurrency:
+  # If we ever end up with two concurrent Docker build jobs for the same commit
+  # and same versioning context, the former should be cancelled
+  group: docker-${{ github.sha }}-${{ github.ref_type }}-${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     uses: docker/github-builder/.github/workflows/build.yml@v1

.github/workflows/oxipng.yml

@@ -8,6 +8,11 @@ on:
       - synchronize
   workflow_dispatch:
 
+concurrency:
+  # If we ever end up with two concurrent CI jobs for the same commit, the former should be cancelled
+  group: ci-${{ github.sha }}
+  cancel-in-progress: true
+
 jobs:
   ci:
     name: CI
@@ -126,7 +131,7 @@ jobs:
       - name: Build CLI binary
         run: cargo build --release -Zbuild-std
         env:
-          RUSTFLAGS: '-Zlocation-detail=none -Zunstable-options -Cpanic=immediate-abort'
+          RUSTFLAGS: "-Zlocation-detail=none -Zunstable-options -Cpanic=immediate-abort"
 
       - name: Upload CLI binary as artifact
         uses: actions/upload-artifact@v7

.gitignore

@@ -1,6 +1,6 @@
-target
-*.bk
 .DS_Store
+*.bk
 *.out.png
-/.idea
-/node_modules
+/.idea/
+/node_modules/
+/target/