ci: for branches, use a single trigger

This trigger will unlock all the job necessary to build wheels and upload
nightly build. This should make the nightly build process more pratical.

In practice right now, only run pipeline for branch by creating them explicitly
on the web. So we could just run everything without trigger, but this is a
decision for later. This changeset only focus on making the nightly build
process somewhat manageable.

contrib/heptapod-ci.yml

@@ -20,6 +20,7 b' workflow:'
       when: always
 
 stages:
+  - nightly-trigger
   - build
   - checks
   - tests
@@ -79,6 +80,17 b' variables:'
     - .dummy
   when: manual
 
+
+trigger-nightly-build:
+  extends: .trigger
+  stage: nightly-trigger
+  rules:
+    - if: $CI_COMMIT_BRANCH =~ $RE_BRANCH
+      when: manual
+      allow_failure: true
+    - if: $CI_COMMIT_BRANCH =~ $RE_TOPIC
+      when: never
+
 .build-wheel:
   extends: .all
   image: "registry.heptapod.net/mercurial/ci-images/core-wheel-x86_64-c:v3.0"
@@ -100,6 +112,7 b' variables:'
       - wheels/
     expire_in: 1 week
 
+
 build-c-wheel:
   extends: .build-wheel
   variables:
@@ -239,12 +252,18 b' test-chg:'
 trigger-pycompat:
   extends: .trigger
   stage: py-version-compat
+  rules:
+  - if: $CI_COMMIT_BRANCH =~ $RE_BRANCH
+    when: on_success
+    needs:
+      - trigger-nightly-build
+  - if: $CI_COMMIT_BRANCH =~ $RE_TOPIC
+    when: manual
+    allow_failure: true
 
 .test-c-pycompat:
     extends: .test-c
     stage: py-version-compat
-    needs:
-      - trigger-pycompat
     variables:
         WHEEL_TYPE: "c"
 
@@ -256,6 +275,7 b' test-3.8-c:'
     variables:
         PYTHON: python3.8
     needs:
+      - job: trigger-pycompat
       - job: build-c-wheel
         parallel:
           matrix:
@@ -266,6 +286,7 b' test-3.12-c:'
     variables:
         PYTHON: python3.12
     needs:
+      - job: trigger-pycompat
       - job: build-c-wheel
         parallel:
           matrix:
@@ -284,6 +305,7 b' test-3.13-c:'
     variables:
         PYTHON: python3.13
     needs:
+      - job: trigger-pycompat
       - job: build-c-wheel
         parallel:
           matrix:
@@ -333,6 +355,12 b' check-pytype:'
 trigger-wheel-windows:
   extends: .trigger
   stage: build
+  rules:
+  - if: $CI_COMMIT_BRANCH =~ $RE_BRANCH
+    when: never
+  - if: $CI_COMMIT_BRANCH =~ $RE_TOPIC
+    when: manual
+    allow_failure: true
 
 build-c-wheel-windows:
     extends: .windows
@@ -340,7 +368,13 b' build-c-wheel-windows:'
     # wait for someone to click on "trigger-wheel-windows"
     when: on_success
     needs:
-      - "trigger-wheel-windows"
+    rules:
+    - if: $CI_COMMIT_BRANCH =~ $RE_BRANCH
+      needs:
+        - trigger-nightly-build
+    - if: $CI_COMMIT_BRANCH =~ $RE_TOPIC
+      needs:
+        - "trigger-wheel-windows"
     variables:
       MERCURIAL_SETUP_FORCE_TRANSLATIONS: "1"
     script:
@@ -458,7 +492,13 b' macos:'
 # The weird directory structure match the one we use for Linux to deal with the
 # multiple jobs. (all this might be unnecessary)
 build-c-wheel-macos:
-    when: manual  # avoid overloading the CI by default
+    rules:
+    - if: $CI_COMMIT_BRANCH =~ $RE_BRANCH
+      needs:
+        - trigger-nightly-build
+    - if: $CI_COMMIT_BRANCH =~ $RE_TOPIC
+      when: manual  # avoid overloading the CI by default
+      allow_failure: true
     stage: build
     tags:
       - macos
@@ -494,9 +534,6 b' build-c-wheel-macos:'
       when: on_success
     - if: '$CI_COMMIT_BRANCH =~ $RE_TOPIC'
       when: never
-      # if you need to test this, make it
-      # when: manual
-      # allow_failure: true
 
 # a dummy job that gather greatly parallel object into one.
 #
@@ -505,10 +542,10 b' build-c-wheel-macos:'
 #
 .sink:
   extends:
-    - .nightly_build_sink
+    - .nightly_build_step
     - .dummy
 
-linux-test-result:
+test-result-linux:
   extends: .sink
   needs:
     - test-c
@@ -516,12 +553,12 b' linux-test-result:'
     - test-3.12-c
     - test-3.13-c
 
-macos-test-result:
+test-result-macos:
   extends: .sink
   needs:
     - macos
 
-windows-test-result:
+test-result-windows:
   extends: .sink
   needs:
     - windows
@@ -544,9 +581,9 b' upload-wheel-nightly:'
     - build-c-wheel
     - build-c-wheel-macos
     - build-c-wheel-windows
-    - linux-test-result
-    - macos-test-result
-    - windows-test-result
+    - test-result-linux
+    - test-result-macos
+    - test-result-windows
   # It would be nice to be able to restrict that a bit to protected branch only
   variables:
     TWINE_USERNAME: gitlab-ci-token