CI: Add visual diff output

.gitlab-ci.yml

@@ -1,15 +1,16 @@
 image: python:latest
 
 stages:
-  - test
   - screenshot
+  - diffs
+  - test
   - convert
 
 before_script:
-  - python -V
   - git clone --depth 1 https://gitlab.com/kicad/libraries/kicad-library-utils $CI_BUILDS_DIR/kicad-library-utils
+  - git config --global --add safe.directory $(realpath .)
 
-footprints:
+klc-check:
   stage: test
   only:
     refs:
@@ -18,7 +19,7 @@ footprints:
       - "**/*.kicad_mod"
       - "fp-lib-table"
   script:
-    - $CI_BUILDS_DIR/kicad-library-utils/klc-check/gitlabci/check_footprints.sh
+    - $CI_BUILDS_DIR/kicad-library-utils/tools/gitlabci/check_footprints.sh
   artifacts:
     reports:
       metrics: metrics.txt
@@ -57,10 +58,35 @@ screenshot:
     - sudo apt update -qq
     - sudo apt install curl inkscape python3 git -qqy --no-install-recommends
     - mkdir -p $HOME/.config/kicad/6.99/colors
-    - git clone --depth 1 https://gitlab.com/kicad/libraries/kicad-library-utils $CI_BUILDS_DIR/kicad-library-utils
+    - git clone --depth 1 --branch experiment-html-diff https://gitlab.com/neinseg/kicad-library-utils $CI_BUILDS_DIR/kicad-library-utils
+    - git config --global --add safe.directory $(realpath .)
   script:
-    - $CI_BUILDS_DIR/kicad-library-utils/klc-check/gitlabci/screenshot_footprints.sh
+    - $CI_BUILDS_DIR/kicad-library-utils/tools/gitlabci/screenshot_footprints.sh
   artifacts:
     expose_as: 'Screenshots'
     paths:
       - screenshots/
+
+visual_diff:
+  stage: diffs
+  image: kicad/kicad:nightly
+  only:
+    refs:
+      - merge_requests
+    changes:
+      - "**/*.kicad_mod"
+  script:
+    - mkdir -p $HOME/.config/kicad/7.0/colors
+    - sudo apt update -qq
+    - sudo apt install curl python3 python3-pip -qqy --no-install-recommends
+    - python3 -V
+    - pip install pygments wsdiff jinja2
+    - $CI_BUILDS_DIR/kicad-library-utils/tools/gitlabci/visual_diff.sh
+    - mkdir diffs
+    - mv *.diff diffs/
+  artifacts:
+    expose_as: "Visual Diff"
+    paths:
+      - "diffs/"
+  dependencies:
+    - screenshot