actions: post all results at once

Signed-off-by: lucasew <[email protected]>

.github/workflows/nixpkgs-review.yml

@@ -47,7 +47,7 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  comment:
+  pre-run:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/github-script@v7
@@ -75,6 +75,32 @@ jobs:
               repo: 'nixpkgs',
               body: process.env.MESSAGE
             })
+  post-run:
+    runs-on: ubuntu-latest
+    needs:
+      - build-x86_64-linux
+      - build-aarch64-darwin
+      - build-x86_64-darwin
+    if: ${{ always() }}
+    steps:
+      - name: Fetch reports from runners
+        uses: actions/download-artifact@v4
+        with:
+          path: reports
+          pattern: report-*
+      - name: Join reports
+        run: cat reports/**/*.md > report.md
+      - uses: actions/github-script@v7
+        with:
+          script: |
+            const fs = require('node:fs');
+            github.rest.issues.createComment({
+              issue_number: process.env.PR,
+              owner: 'NixOS',
+              repo: 'nixpkgs',
+              body: fs.readFileSync("report.md")
+            })
+
   build-x86_64-linux:
     name: 'x86_64-linux'
     if: ${{ github.event.inputs.x86_64-linux == 'true' }}
@@ -115,7 +141,7 @@ jobs:
           git config --global user.email "[email protected]"
           git config --global user.name "user"
           cd $GITHUB_WORKSPACE/nixpkgs
-          nix run nixpkgs#nixpkgs-review -- pr $PR --print-result --post-result --no-shell $EXTRA_ARGS
+          nix run nixpkgs#nixpkgs-review -- pr $PR --print-result --no-shell $EXTRA_ARGS
       - uses: actions/upload-artifact@v4
         if: always()
         with:
@@ -124,6 +150,11 @@ jobs:
             ~/.cache/nixpkgs-review/*/logs
             /nix/var/log/nix/drvs
           include-hidden-files: true
+      - uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: report-x86_64-linux
+          path: ~/.cache/nixpkgs-review/*/report.md
 
   build-aarch64-darwin:
     name: 'aarch64-darwin'
@@ -155,7 +186,7 @@ jobs:
           git config --global user.email "[email protected]"
           git config --global user.name "user"
           cd $GITHUB_WORKSPACE/nixpkgs
-          nix run nixpkgs#nixpkgs-review -- pr $PR --print-result --post-result --no-shell $EXTRA_ARGS
+          nix run nixpkgs#nixpkgs-review -- pr $PR --print-result --no-shell $EXTRA_ARGS
       - uses: actions/upload-artifact@v4
         if: always()
         with:
@@ -164,6 +195,11 @@ jobs:
             /nix/var/log/nix/drvs
             ~/.cache/nixpkgs-review/*/logs
           include-hidden-files: true
+      - uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: report-aarch64-darwin
+          path: ~/.cache/nixpkgs-review/*/report.md
 
   build-x86_64-darwin:
     name: 'x86_64-darwin'
@@ -195,7 +231,7 @@ jobs:
           git config --global user.email "[email protected]"
           git config --global user.name "user"
           cd $GITHUB_WORKSPACE/nixpkgs
-          nix run nixpkgs#nixpkgs-review -- pr $PR --print-result --post-result --no-shell $EXTRA_ARGS
+          nix run nixpkgs#nixpkgs-review -- pr $PR --print-result --no-shell $EXTRA_ARGS
       - uses: actions/upload-artifact@v4
         if: always()
         with:
@@ -204,3 +240,8 @@ jobs:
             /nix/var/log/nix/drvs
             ~/.cache/nixpkgs-review/*/logs
           include-hidden-files: true
+      - uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: report-x86_64-darwin
+          path: ~/.cache/nixpkgs-review/*/report.md