chore(ci): skip spreading if there is no change (#353)

Co-authored-by: Clément Vannicatte <vannicattec@gmail.com>
Co-authored-by: Clément Vannicatte <20689156+shortcuts@users.noreply.github.com>

scripts/ci/codegen/pushGeneratedCode.ts

@@ -20,7 +20,7 @@ export async function pushGeneratedCode(): Promise<void> {
   console.log(`Checking codegen status on '${baseBranch}'.`);
 
   const nbDiff = await getNbGitDiff({
-    branch: baseBranch,
+    branch: 'origin/generated/main',
     head: null,
     path: FOLDERS_TO_CHECK,
   });
@@ -59,7 +59,7 @@ export async function pushGeneratedCode(): Promise<void> {
   }
 
   const commitMessage =
-    await run(`git show -s ${baseBranch} --format="Generated code for commit %H.
+    await run(`git show -s ${baseBranch} --format="chore: generated code for commit %H.
 
 Co-authored-by: %an <%ae>"`);
 

scripts/ci/codegen/spreadGeneration.ts

@@ -13,6 +13,7 @@ import {
 } from '../../common';
 import { getLanguageFolder } from '../../config';
 import { cloneRepository, configureGitHubAuthor } from '../../release/common';
+import { getNbGitDiff } from '../utils';
 
 export function decideWhereToSpread(commitMessage: string): string[] {
   if (commitMessage.startsWith('chore: release')) {
@@ -69,6 +70,16 @@ async function spreadGeneration(): Promise<void> {
     await emptyDirExceptForDotGit(tempGitDir);
     await copy(clientPath, tempGitDir, { preserveTimestamps: true });
 
+    if (
+      (await getNbGitDiff({
+        head: null,
+        cwd: tempGitDir,
+      })) === 0
+    ) {
+      console.log(`Skipping ${lang} repository, because there is no change.`);
+      return;
+    }
+
     await configureGitHubAuthor(tempGitDir);
     await run(`git add .`, { cwd: tempGitDir });
     await gitCommit({

scripts/ci/utils.ts

@@ -2,22 +2,32 @@ import { run } from '../common';
 
 /**
  * Returns the number of diff between a `branch` and its `HEAD` for the given `path`.
- * Head defaults to `HEAD`, providing `null` will check unstaged changes.
+ *
+ * @param opts - Parameters of the method.
+ * @param opts.branch - The branch to trigger the operation, defaults to '' (current branch).
+ * @param opts.head - The head to compare the operation, defaults to 'HEAD', providing 'null' will check for unstaged changes.
+ * @param opts.path - The path to look for changes in, defaults to '.' (current directory).
+ * @param opts.cwd - The path to run the command, defaults to current directory.
  */
 export async function getNbGitDiff({
-  branch,
+  branch = '',
   head = 'HEAD',
-  path,
-}: {
+  path = '.',
+  cwd,
+}: Partial<{
   branch: string;
-  head?: string | null;
+  head: string | null;
   path: string;
-}): Promise<number> {
+  cwd: string;
+}>): Promise<number> {
   const checkHead = head === null ? '' : `...${head}`;
 
   return parseInt(
     (
-      await run(`git diff --shortstat ${branch}${checkHead} -- ${path} | wc -l`)
+      await run(
+        `git diff --shortstat ${branch}${checkHead} -- ${path} | wc -l`,
+        { cwd }
+      )
     ).trim(),
     10
   );

scripts/release/create-release-issue.ts

@@ -2,6 +2,7 @@
 import dotenv from 'dotenv';
 import semver from 'semver';
 
+import { getNbGitDiff } from '../ci/utils';
 import {
   LANGUAGES,
   ROOT_ENV_PATH,
@@ -161,7 +162,11 @@ async function createReleaseIssue(): Promise<void> {
     );
   }
 
-  if (await run('git status --porcelain')) {
+  if (
+    (await getNbGitDiff({
+      head: null,
+    })) !== 0
+  ) {
     throw new Error(
       'Working directory is not clean. Commit all the changes first.'
     );