Merge pull request #32 from rosspeili/fix/label-sync-update

fix(ci): update existing label colors via GitHub API

Author: rosspeili

.github/LABELS.md

@@ -153,15 +153,16 @@ Colors are set in [labels.json](labels.json). Adjust in the GitHub UI if a label
 
 **Automatic (after merge to `main`):**
 
-1. Merge a PR that includes `.github/labels.json`.
-2. Workflow **Sync GitHub labels** runs on push, or run it manually: **Actions** → **Sync GitHub labels** → **Run workflow**.
+1. Merge a PR that includes `.github/labels.json` (or workflow changes).
+2. Workflow **Sync GitHub labels** runs on push, or run it manually: **Actions** → **Sync GitHub labels** → **Run workflow** → branch **`main`**.
 
-**Manual (first time or without Actions):**
+The workflow uses the GitHub API to **create and update** labels (including **color** changes). Re-run after editing colors in `labels.json`.
 
-1. Open **Issues** → **Labels** → **New label**.
-2. Create each entry from [labels.json](labels.json) (name, description, color).
+**Manual (without Actions):**
 
-`delete-other-labels` is **false** — existing labels not listed in `labels.json` are kept.
+1. Open **Issues** → **Labels** → edit each label, or use `gh label edit <name> --color <hex> --description "..."`.
+
+Labels not listed in `labels.json` are kept (nothing is deleted).
 
 ---
 

.github/workflows/sync-labels.yml

@@ -7,9 +7,11 @@ on:
       - main
     paths:
       - .github/labels.json
+      - .github/workflows/sync-labels.yml
 
 permissions:
   issues: write
+  contents: read
 
 jobs:
   sync:
@@ -18,9 +20,43 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Sync labels from .github/labels.json
-        uses: EndBug/label-sync@v2
+      - name: Create or update labels from labels.json
+        uses: actions/github-script@v7
         with:
-          config-file: .github/labels.json
-          delete-other-labels: false
-          token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const fs = require('fs');
+            const labels = JSON.parse(
+              fs.readFileSync('.github/labels.json', 'utf8')
+            );
+            const { owner, repo } = context.repo;
+
+            for (const { name, color, description } of labels) {
+              const colorHex = String(color).replace(/^#/, '');
+              const desc = description || '';
+
+              try {
+                await github.rest.issues.getLabel({ owner, repo, name });
+                await github.rest.issues.updateLabel({
+                  owner,
+                  repo,
+                  name,
+                  color: colorHex,
+                  description: desc,
+                });
+                core.info(`Updated: ${name} (#${colorHex})`);
+              } catch (error) {
+                if (error.status === 404) {
+                  await github.rest.issues.createLabel({
+                    owner,
+                    repo,
+                    name,
+                    color: colorHex,
+                    description: desc,
+                  });
+                  core.info(`Created: ${name} (#${colorHex})`);
+                } else {
+                  core.setFailed(`Failed on ${name}: ${error.message}`);
+                  throw error;
+                }
+              }
+            }