Add missing dependency and tool for checking

There is a missing dependency in DEBS part: webp-pixbuf-loader.
This patch adds it and also adds a check to ensure that any
push fulfills the dependencies, ensuring that DEBS is ran after
all the previous parts.

.github/workflows/check-dependencies.yml

@@ -0,0 +1,22 @@
+name: test-dependencies
+on:
+ pull_request:
+ push:
+ branches:
+ - gnome-42-2204-sdk
+
+jobs:
+ check-deps:
+ runs-on: ubuntu-latest
+ container:
+ image: ubuntu:rolling
+ steps:
+ - name: Checkout
+ uses: actions/checkout@v2
+ - name: Install dependencies (Ubuntu)
+ run: |
+ apt-get update
+ DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends python3 python3-yaml
+ - name: Verify dependencies
+ run: |
+ tools/check_dependencies.py

snapcraft.yaml

@@ -1522,7 +1522,7 @@ parts:
  fi
 
  debs:
- after: [ libgnome-games-support, libadwaita, libgweather, poppler, libayatana-appindicator, intel-media-driver ]
+ after: [ libgnome-games-support, libadwaita, libgweather, poppler, libayatana-appindicator, intel-media-driver, webp-pixbuf-loader ]
  plugin: nil
  stage-packages:
  - appstream

tools/check_dependencies.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+import yaml
+
+# Ensure that "deb" part depends on all previous parts
+
+config_file = "snapcraft.yaml"
+if not os.path.exists(config_file):
+ config_file = os.path.join("snap", "snapcraft.yaml")
+
+data = yaml.safe_load(open(config_file, "r"))
+
+parts = {}
+exceptions = ['buildenv']
+
+for part in data['parts']:
+ if part == "debs":
+ break
+ if part in exceptions:
+ continue
+ parts[part] = False
+
+def filldeps(part):
+ global data
+ global parts
+ if 'after' not in data['parts'][part]:
+ return
+
+ deps = data['parts'][part]['after']
+ for dep in deps:
+ parts[dep] = True
+ filldeps(dep)
+
+filldeps("debs")
+failed = False
+for part in parts:
+ if parts[part]:
+ continue
+ print(f"DEBS must depend on {part}")
+ failed = True
+
+if failed:
+ sys.exit(1)
+print("All dependencies are correct")