nix: automatic lockfile fixing to keep main building with nix

.github/workflows/nix-lockfile-check.yml

@@ -0,0 +1,76 @@
+name: Nix Lockfile Check
+
+on:
+  pull_request:
+    paths:
+      - 'ui-tui/package.json'
+      - 'ui-tui/package-lock.json'
+      - 'web/package.json'
+      - 'web/package-lock.json'
+      - 'nix/tui.nix'
+      - 'nix/web.nix'
+      - 'nix/lib.nix'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pull-requests: write
+
+concurrency:
+  group: nix-lockfile-check-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4
+
+      - uses: nixbuild/nix-quick-install-action@63ca48f939ee3b8d835f4126562537df0fee5b91  # v30
+
+      - name: Resolve head SHA
+        id: sha
+        shell: bash
+        run: |
+          FULL="${{ github.event.pull_request.head.sha || github.sha }}"
+          echo "full=$FULL" >> "$GITHUB_OUTPUT"
+          echo "short=${FULL:0:7}" >> "$GITHUB_OUTPUT"
+
+      - name: Check lockfile hashes
+        id: check
+        continue-on-error: true
+        env:
+          LINK_SHA: ${{ steps.sha.outputs.full }}
+        run: nix run .#fix-lockfiles -- --check
+
+      - name: Post sticky PR comment (stale)
+        if: steps.check.outputs.stale == 'true' && github.event_name == 'pull_request'
+        uses: marocchino/sticky-pull-request-comment@52423e01640425a022ef5fd42c6fb5f633a02728  # v2.9.1
+        with:
+          header: nix-lockfile-check
+          message: |
+            ### ⚠️ npm lockfile hash out of date
+
+            Checked against commit [`${{ steps.sha.outputs.short }}`](${{ github.server_url }}/${{ github.repository }}/commit/${{ steps.sha.outputs.full }}) (PR head at check time).
+
+            The `hash = "sha256-..."` line in these nix files no longer matches the committed `package-lock.json`:
+
+            ${{ steps.check.outputs.report }}
+
+            #### Apply the fix
+
+            - [ ] **Apply lockfile fix** — tick to push a commit with the correct hashes to this PR branch
+            - Or [run the Nix Lockfile Fix workflow](${{ github.server_url }}/${{ github.repository }}/actions/workflows/nix-lockfile-fix.yml) manually (pass PR `#${{ github.event.pull_request.number }}`)
+            - Or locally: `nix run .#fix-lockfiles -- --apply` and commit the diff
+
+      - name: Clear sticky PR comment (resolved)
+        if: steps.check.outputs.stale == 'false' && github.event_name == 'pull_request'
+        uses: marocchino/sticky-pull-request-comment@52423e01640425a022ef5fd42c6fb5f633a02728  # v2.9.1
+        with:
+          header: nix-lockfile-check
+          delete: true
+
+      - name: Fail if stale
+        if: steps.check.outputs.stale == 'true'
+        run: exit 1

.github/workflows/nix-lockfile-fix.yml

@@ -0,0 +1,149 @@
+name: Nix Lockfile Fix
+
+on:
+  workflow_dispatch:
+    inputs:
+      pr_number:
+        description: 'PR number to fix (leave empty to run on the selected branch)'
+        required: false
+        type: string
+  issue_comment:
+    types: [edited]
+
+permissions:
+  contents: write
+  pull-requests: write
+
+concurrency:
+  group: nix-lockfile-fix-${{ github.event.issue.number || github.event.inputs.pr_number || github.ref }}
+  cancel-in-progress: false
+
+jobs:
+  fix:
+    # Run on manual dispatch OR when a task-list checkbox in the sticky
+    # lockfile-check comment flips from `[ ]` to `[x]`.
+    if: |
+      github.event_name == 'workflow_dispatch' ||
+      (github.event_name == 'issue_comment'
+       && github.event.issue.pull_request != null
+       && contains(github.event.comment.body, '[x] **Apply lockfile fix**')
+       && !contains(github.event.changes.body.from, '[x] **Apply lockfile fix**'))
+    runs-on: ubuntu-latest
+    timeout-minutes: 25
+    steps:
+      - name: Authorize & resolve PR
+        id: resolve
+        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea  # v7.0.1
+        with:
+          script: |
+            // 1. Verify the actor has write access — applies to both checkbox
+            //    clicks and manual dispatch.
+            const { data: perm } =
+              await github.rest.repos.getCollaboratorPermissionLevel({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                username: context.actor,
+              });
+            if (!['admin', 'write', 'maintain'].includes(perm.permission)) {
+              core.setFailed(
+                `${context.actor} lacks write access (has: ${perm.permission})`
+              );
+              return;
+            }
+
+            // 2. Resolve which ref to check out.
+            let prNumber = '';
+            if (context.eventName === 'issue_comment') {
+              prNumber = String(context.payload.issue.number);
+            } else if (context.eventName === 'workflow_dispatch') {
+              prNumber = context.payload.inputs.pr_number || '';
+            }
+
+            if (!prNumber) {
+              core.setOutput('ref', context.ref.replace(/^refs\/heads\//, ''));
+              core.setOutput('repo', context.repo.repo);
+              core.setOutput('owner', context.repo.owner);
+              core.setOutput('pr', '');
+              return;
+            }
+
+            const { data: pr } = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: Number(prNumber),
+            });
+            core.setOutput('ref', pr.head.ref);
+            core.setOutput('repo', pr.head.repo.name);
+            core.setOutput('owner', pr.head.repo.owner.login);
+            core.setOutput('pr', String(pr.number));
+
+      # Wipe the sticky lockfile-check comment to a "running" state as soon
+      # as the job is authorized, so the user sees their click was picked up
+      # before the ~minute of nix build work.
+      - name: Mark sticky as running
+        if: steps.resolve.outputs.pr != ''
+        uses: marocchino/sticky-pull-request-comment@52423e01640425a022ef5fd42c6fb5f633a02728  # v2.9.1
+        with:
+          header: nix-lockfile-check
+          number: ${{ steps.resolve.outputs.pr }}
+          message: |
+            ### 🔄 Applying lockfile fix…
+
+            Triggered by @${{ github.actor }} — [workflow run](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}).
+
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4
+        with:
+          repository: ${{ steps.resolve.outputs.owner }}/${{ steps.resolve.outputs.repo }}
+          ref: ${{ steps.resolve.outputs.ref }}
+          token: ${{ secrets.GITHUB_TOKEN }}
+          fetch-depth: 0
+
+      - uses: nixbuild/nix-quick-install-action@63ca48f939ee3b8d835f4126562537df0fee5b91  # v30
+
+      - name: Apply lockfile hashes
+        id: apply
+        run: nix run .#fix-lockfiles -- --apply
+
+      - name: Commit & push
+        if: steps.apply.outputs.changed == 'true'
+        shell: bash
+        run: |
+          set -euo pipefail
+          git config user.name 'github-actions[bot]'
+          git config user.email '41898282+github-actions[bot]@users.noreply.github.com'
+          git add nix/tui.nix nix/web.nix
+          git commit -m "fix(nix): refresh npm lockfile hashes"
+          git push
+
+      - name: Update sticky (applied)
+        if: steps.apply.outputs.changed == 'true' && steps.resolve.outputs.pr != ''
+        uses: marocchino/sticky-pull-request-comment@52423e01640425a022ef5fd42c6fb5f633a02728  # v2.9.1
+        with:
+          header: nix-lockfile-check
+          number: ${{ steps.resolve.outputs.pr }}
+          message: |
+            ### ✅ Lockfile fix applied
+
+            Pushed a commit refreshing the npm lockfile hashes — [workflow run](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}).
+
+      - name: Update sticky (already current)
+        if: steps.apply.outputs.changed == 'false' && steps.resolve.outputs.pr != ''
+        uses: marocchino/sticky-pull-request-comment@52423e01640425a022ef5fd42c6fb5f633a02728  # v2.9.1
+        with:
+          header: nix-lockfile-check
+          number: ${{ steps.resolve.outputs.pr }}
+          message: |
+            ### ✅ Lockfile hashes already current
+
+            Nothing to commit — [workflow run](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}).
+
+      - name: Update sticky (failed)
+        if: failure() && steps.resolve.outputs.pr != ''
+        uses: marocchino/sticky-pull-request-comment@52423e01640425a022ef5fd42c6fb5f633a02728  # v2.9.1
+        with:
+          header: nix-lockfile-check
+          number: ${{ steps.resolve.outputs.pr }}
+          message: |
+            ### ❌ Lockfile fix failed
+
+            See the [workflow run](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}) for logs.

nix/devShell.nix

@@ -7,7 +7,8 @@
     let
       hermes-agent = inputs.self.packages.${system}.default;
       hermes-tui = inputs.self.packages.${system}.tui;
-      packages = [ hermes-agent hermes-tui ];
+      hermes-web = inputs.self.packages.${system}.web;
+      packages = [ hermes-agent hermes-tui hermes-web ];
     in {
       devShells.default = pkgs.mkShell {
         inputsFrom = packages;