fix: error detecting initial commits (#1181)

Co-authored-by: GitHub Action <action@github.com>

HISTORY.md

@@ -1,5 +1,21 @@
 # Changelog
 
+# [36.0.4](https://github.com/tj-actions/changed-files/compare/v36.0.3...v36.0.4) - (2023-05-26)
+
+## <!-- 1 -->🐛 Bug Fixes
+
+- Bug not using the path for source file inputs ([#1179](https://github.com/tj-actions/changed-files/issues/1179)) ([c798a4e](https://github.com/tj-actions/changed-files/commit/c798a4ea57f0e0a9d2b5374853c9c479ebb435a2))  - (Tonye Jack)
+
+## <!-- 7 -->⚙️ Miscellaneous Tasks
+
+- **deps:** Lock file maintenance ([#1178](https://github.com/tj-actions/changed-files/issues/1178)) ([e82d391](https://github.com/tj-actions/changed-files/commit/e82d3911ce25632baf10067a87543332d022f6f3))  - (renovate[bot])
+
+## <!-- 9 -->⬆️ Upgrades
+
+- Upgraded to v36.0.3 ([#1177](https://github.com/tj-actions/changed-files/issues/1177))
+
+Co-authored-by: jackton1 <jackton1@users.noreply.github.com> ([de2b6e4](https://github.com/tj-actions/changed-files/commit/de2b6e43f70bc5ad965dd5e8db9d437c1496b8e0))  - (tj-actions[bot])
+
 # [36.0.3](https://github.com/tj-actions/changed-files/compare/v36.0.2...v36.0.3) - (2023-05-26)
 
 ## <!-- 1 -->🐛 Bug Fixes

dist/index.js

@@ -315,23 +315,15 @@ const getSHAForPushEvent = (inputs, env, workingDirectory, isShallow, hasSubmodu
                     cwd: workingDirectory
                 });
             }
-            if (previousSha === currentSha) {
-                if (!(yield (0, utils_1.getParentSha)({ cwd: workingDirectory }))) {
+            if (!previousSha || previousSha === currentSha) {
+                previousSha = yield (0, utils_1.getParentSha)({
+                    cwd: workingDirectory
+                });
+                if (!previousSha) {
                     core.warning('Initial commit detected no previous commit found.');
                     initialCommit = true;
                     previousSha = currentSha;
                 }
-                else {
-                    previousSha = yield (0, utils_1.getParentSha)({
-                        cwd: workingDirectory
-                    });
-                }
-            }
-            else {
-                if (!previousSha) {
-                    core.error('Unable to locate a previous commit.');
-                    throw new Error('Unable to locate a previous commit.');
-                }
             }
         }
     }
@@ -349,7 +341,8 @@ const getSHAForPushEvent = (inputs, env, workingDirectory, isShallow, hasSubmodu
         currentSha,
         currentBranch,
         targetBranch,
-        diff
+        diff,
+        initialCommit
     };
 });
 exports.getSHAForPushEvent = getSHAForPushEvent;
@@ -824,6 +817,11 @@ function run() {
             core.info('Running on a pull request event...');
             diffResult = yield (0, commitSha_1.getSHAForPullRequestEvent)(inputs, env, workingDirectory, isShallow, hasSubmodule, gitExtraArgs);
         }
+        if (diffResult.initialCommit) {
+            core.info('This is the first commit for this repository; exiting...');
+            core.endGroup();
+            return;
+        }
         core.info(`Retrieving changes between ${diffResult.previousSha} (${diffResult.targetBranch}) → ${diffResult.currentSha} (${diffResult.currentBranch})`);
         const filePatterns = yield (0, utils_1.getFilePatterns)({
             inputs,
@@ -1531,10 +1529,14 @@ const gitLsRemote = ({ cwd, args }) => __awaiter(void 0, void 0, void 0, functio
 });
 exports.gitLsRemote = gitLsRemote;
 const getParentSha = ({ cwd }) => __awaiter(void 0, void 0, void 0, function* () {
-    const { stdout } = yield exec.getExecOutput('git', ['rev-list', '-n', '1', 'HEAD^'], {
+    const { stdout, exitCode } = yield exec.getExecOutput('git', ['rev-list', '-n', '1', 'HEAD^'], {
         cwd,
+        ignoreReturnCode: true,
         silent: process.env.RUNNER_DEBUG !== '1'
     });
+    if (exitCode !== 0) {
+        return '';
+    }
     return stdout.trim();
 });
 exports.getParentSha = getParentSha;

src/commitSha.ts

@@ -63,6 +63,7 @@ export interface DiffResult {
   currentBranch: string
   targetBranch: string
   diff: string
+  initialCommit?: boolean
 }
 
 export const getSHAForPushEvent = async (
@@ -201,20 +202,15 @@ export const getSHAForPushEvent = async (
         })
       }
 
-      if (previousSha === currentSha) {
-        if (!(await getParentSha({cwd: workingDirectory}))) {
+      if (!previousSha || previousSha === currentSha) {
+        previousSha = await getParentSha({
+          cwd: workingDirectory
+        })
+
+        if (!previousSha) {
           core.warning('Initial commit detected no previous commit found.')
           initialCommit = true
           previousSha = currentSha
-        } else {
-          previousSha = await getParentSha({
-            cwd: workingDirectory
-          })
-        }
-      } else {
-        if (!previousSha) {
-          core.error('Unable to locate a previous commit.')
-          throw new Error('Unable to locate a previous commit.')
         }
       }
     }
@@ -241,7 +237,8 @@ export const getSHAForPushEvent = async (
     currentSha,
     currentBranch,
     targetBranch,
-    diff
+    diff,
+    initialCommit
   }
 }
 

src/main.ts

@@ -89,6 +89,12 @@ export async function run(): Promise<void> {
     )
   }
 
+  if (diffResult.initialCommit) {
+    core.info('This is the first commit for this repository; exiting...')
+    core.endGroup()
+    return
+  }
+
   core.info(
     `Retrieving changes between ${diffResult.previousSha} (${diffResult.targetBranch}) → ${diffResult.currentSha} (${diffResult.currentBranch})`
   )

src/utils.ts

@@ -526,15 +526,20 @@ export const gitLsRemote = async ({
 }
 
 export const getParentSha = async ({cwd}: {cwd: string}): Promise<string> => {
-  const {stdout} = await exec.getExecOutput(
+  const {stdout, exitCode} = await exec.getExecOutput(
     'git',
     ['rev-list', '-n', '1', 'HEAD^'],
     {
       cwd,
+      ignoreReturnCode: true,
       silent: process.env.RUNNER_DEBUG !== '1'
     }
   )
 
+  if (exitCode !== 0) {
+    return ''
+  }
+
   return stdout.trim()
 }