feat(npins-update): Make it run weekly, but per pin

workflows/npins-update.nix

@@ -2,63 +2,90 @@
 #
 # SPDX-License-Identifier: EUPL-1.2
 
-{ nix-actions, ... }:
+{ lib, nix-actions, ... }:
+
+let
+  inherit (nix-actions.lib) secret;
+
+  inherit (lib) genAttrs mapAttrs' nameValuePair;
+
+  dependencies = builtins.attrNames (import ../npins);
+in
 
 {
-  name = "npins update";
+  name = "Update dependencies";
   on.schedule = [
-    # Run at 15:25 everyday
-    { cron = "25 15 * * *"; }
+    # Run at 15:25 every saturday
+    { cron = "25 15 * * 6"; }
   ];
 
-  jobs.npins_update = {
-    runs-on = "nix";
-    steps = [
-      (nix-actions.steps.checkout {
-        fetch-depth = 0;
-        token = nix-actions.lib.secret "TEA_DGNUM_CHORES_TOKEN";
-      })
-
-      {
-        name = "Update dependencies and open PR if necessary";
-        run = # bash
-          ''
-            npins update
-
-            if [ ! -z "$(git diff --name-only)" ]; then
-              echo "[+] Changes detected, pushing updates."
-
-              git switch -C npins-update
-
-              git add npins
-
-              git commit --message "chore(npins): Update"
-              git push --set-upstream origin npins-update --force
-
-              # Connect to the server with the cli
-              tea login add \
-                -n dgnum-chores \
-                -t "${nix-actions.lib.secret "TEA_DGNUM_CHORES_TOKEN"}" \
-                -u https://git.dgnum.eu
-
-              # Create a pull request if needed
-              # i.e. no PR with the same title exists
-              if [ -z "$(tea pr ls -f='title,author' -o simple | grep 'chore(npins): Update dgnum-chores')" ]; then
-                tea pr create \
-                  --description "Automatic npins update" \
-                  --title "chore(npins): Update" \
-                  --head npins-update
-              fi
-            fi
-          '';
-
-        env = {
-          GIT_AUTHOR_NAME = "DGNum Chores";
-          GIT_AUTHOR_EMAIL = "tech@dgnum.eu";
-          GIT_COMMITTER_NAME = "DGNum Chores";
-          GIT_COMMITTER_EMAIL = "tech@dgnum.eu";
-        };
-      }
-    ];
+  # Global environment, necessary for rebases and commits
+  env = rec {
+    GIT_AUTHOR_NAME = "HT Chores";
+    GIT_AUTHOR_EMAIL = "chores@mail.hubrecht.ovh";
+    GIT_COMMITTER_NAME = GIT_AUTHOR_NAME;
+    GIT_COMMITTER_EMAIL = GIT_AUTHOR_EMAIL;
   };
+
+  jobs = mapAttrs' (name: nameValuePair (builtins.replaceStrings [ "." ] [ "_" ] name)) (
+    genAttrs dependencies (name: {
+      runs-on = "nix";
+      steps = [
+        (nix-actions.steps.checkout {
+          fetch-depth = 0;
+          token = secret "TEA_DGNUM_CHORES_TOKEN";
+        })
+
+        {
+          env = {
+            GIT_UPDATE_BRANCH = "npins-updates/${name}";
+            COMMIT_MESSAGE = "chore(npins): Update ${name}";
+          };
+
+          name = "Switch to a new branch";
+          run = # bash
+            ''
+              if git ls-remote --exit-code --heads origin "refs/heads/$GIT_UPDATE_BRANCH"; then
+                git switch "$GIT_UPDATE_BRANCH"
+                git rebase main
+                echo "EXISTING_BRANCH=1" >> $GITHUB_ENV
+              else
+                git switch -C "$GIT_UPDATE_BRANCH"
+              fi
+            '';
+        }
+
+        {
+          name = "Open a PR if updates are present";
+          run = # bash
+            ''
+              npins update ${name}
+
+              if [ ! -z "$(git diff --name-only)" ]; then
+                echo "[+] Changes detected, pushing updates."
+
+                git add npins
+
+                if [ "$EXISTING_BRANCH" -eq "1" ]; then
+                  git commit --amend --no-edit
+                  git push --force
+                else
+                  git commit --message "$COMMIT_MESSAGE"
+                  git push -u origin "$GIT_UPDATE_BRANCH"
+                fi
+
+                # Connect to the server with the cli
+                tea login add -n dgnum-chores -t "${secret "TEA_DGNUM_CHORES_TOKEN"}" -u https://git.dgnum.eu
+
+                # Create a pull request if needed
+                # i.e. no PR with the same title exists
+                if [ -z $(tea pr ls -f='title,author' -o simple | grep "$COMMIT_MESSAGE dgnum-chores") ]; then
+                  tea pr create --description "Automatic npins update" --title "$COMMIT_MESSAGE" --head "$GIT_UPDATE_BRANCH"
+                fi
+              fi
+            '';
+        }
+      ];
+    })
+  );
 }