NOISSUE add GitHub Actions scripts for PR preparation and review management

- Introduced `prepare.js` to validate PR mergeability and branch targeting.
- Added `reviews.js` for automated review dismissal and posting.
- Created `run` script to execute actions with GitHub context.
- Implemented rate limiting in `withRateLimit.js` to manage API requests.
- Added `supportedBranches.js` for branch classification logic.
- Created `update-pinned.sh` for updating pinned dependencies.
- Added `pinned.json` to manage pinned Nix dependencies.
- Updated `libnbtplusplus` version from 2.3 to 3.0 and adjusted README accordingly.

Signed-off-by: Mehmet Samet Duman <yongdohyun@projecttick.org>

1 files changed, 101 insertions, 0 deletions

diff --git a/ci/github-script/get-pr-commit-details.js b/ci/github-script/get-pr-commit-details.js
new file mode 100644
index 0000000000..fcccfeacd7
--- /dev/null
+++ b/ci/github-script/get-pr-commit-details.js
@@ -0,0 +1,101 @@
+// @ts-check
+const { promisify } = require('node:util')
+const execFile = promisify(require('node:child_process').execFile)
+
+/**
+ * @param {{
+ *  args: string[]
+ *  core: import('@actions/core'),
+ *  quiet?: boolean,
+ *  repoPath?: string,
+ * }} RunGitProps
+ */
+async function runGit({ args, repoPath, core, quiet }) {
+  if (repoPath) {
+    args = ['-C', repoPath, ...args]
+  }
+
+  if (!quiet) {
+    core.info(`About to run \`git ${args.map((s) => `'${s}'`).join(' ')}\``)
+  }
+
+  return await execFile('git', args)
+}
+
+/**
+ * Gets the SHA, subject and changed files for each commit in the given PR.
+ *
+ * Don't use GitHub API at all: the "list commits on PR" endpoint has a limit
+ * of 250 commits and doesn't return the changed files.
+ *
+ * @param {{
+ *  core: import('@actions/core'),
+ *  pr: Awaited<ReturnType<InstanceType<import('@actions/github/lib/utils').GitHub>["rest"]["pulls"]["get"]>>["data"]
+ *  repoPath?: string,
+ * }} GetCommitMessagesForPRProps
+ *
+ * @returns {Promise<{
+ *  subject: string,
+ *  sha: string,
+ *  changedPaths: string[],
+ *  changedPathSegments: Set<string>,
+ * }[]>}
+ */
+async function getCommitDetailsForPR({ core, pr, repoPath }) {
+  await runGit({
+    args: ['fetch', `--depth=1`, 'origin', pr.base.sha],
+    repoPath,
+    core,
+  })
+  await runGit({
+    args: ['fetch', `--depth=${pr.commits + 1}`, 'origin', pr.head.sha],
+    repoPath,
+    core,
+  })
+
+  const shas = (
+    await runGit({
+      args: [
+        'rev-list',
+        `--max-count=${pr.commits}`,
+        `${pr.base.sha}..${pr.head.sha}`,
+      ],
+      repoPath,
+      core,
+    })
+  ).stdout
+    .split('\n')
+    .map((s) => s.trim())
+    .filter(Boolean)
+
+  return Promise.all(
+    shas.map(async (sha) => {
+      // Subject first, then a blank line, then filenames.
+      const result = (
+        await runGit({
+          args: ['log', '--format=%s', '--name-only', '-1', sha],
+          repoPath,
+          core,
+          quiet: true,
+        })
+      ).stdout.split('\n')
+
+      const subject = result[0]
+
+      const changedPaths = result.slice(2, -1)
+
+      const changedPathSegments = new Set(
+        changedPaths.flatMap((path) => path.split('/')),
+      )
+
+      return {
+        sha,
+        subject,
+        changedPaths,
+        changedPathSegments,
+      }
+    }),
+  )
+}
+
+module.exports = { getCommitDetailsForPR }