Merge pull request #51 from WyriHaximus/set-working-directory

Add the ability to specify the working directory

.github/workflows/ci.yml

@@ -5,6 +5,42 @@ on:
       - 'master'
   pull_request:
 jobs:
+  get-previous-tag-with-working-directory:
+    name: Test Get Previous Tag on ${{ matrix.os }} with Working Directory
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - windows-latest
+          - macos-latest
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Required due to the way Git works, without it this action won't be able to find any or the correct tags
+      - uses: actions/checkout@v4
+        with:
+          repository: WyriHaximus/php-fake-php-version
+          ref: master
+          path: tmp/some/other/path
+          fetch-depth: 0 # Required due to the way Git works, without it this action won't be able to find any or the correct tags
+      - name: 'Get Previous tag'
+        id: previoustag
+        uses: ./
+        with:
+          workingDirecvtory: tmp/some/other/path
+      - run: |
+          echo "Tag: ${{ steps.previoustag.outputs.tag }}"
+          echo "Timestamp: ${{ steps.previoustag.outputs.timestamp }}"
+          test -n "${{ steps.previoustag.outputs.tag }}"
+          test -n "${{ steps.previoustag.outputs.timestamp }}"
+      - name: Assert we got the tag
+        uses: therussiankid92/gat@v1
+        with:
+          assertion: should.equal
+          expected: v1
+          actual: ${{ steps.previoustag.outputs.tag }}
   get-previous-tag:
     name: Test Get Previous Tag on ${{ matrix.os }}
     strategy:

README.md

@@ -13,12 +13,12 @@ GitHub Action that gets the latest tag from Git
 
 By default, this action will fail if no tag can be found, however, it accepts a `fallback` tag that will be used when no 
 tag can be found. Keep in mind that when this action is used in a workflow that has no `.git` directory, it will still 
-fail, and the fallback tag isn't used.
-
-It is also accepts a `prefix` string to query the tags based on it.
+fail, and the fallback tag isn't used.  It is also accepts a `prefix` string to query the tags based on it. And finally 
+it takes a `workingDirectory` if you need to look for a tag in an alternative path.
 
 * `fallback`: `1.0.0`
 * `prefix`: `tag-prefix`
+* `workingDirectory`: `another/path/where/a/git/repo/is/checked/out`
 
 ## Output
 
@@ -50,6 +50,7 @@ jobs:
         uses: "WyriHaximus/github-action-get-previous-tag@v1"
         with:
           fallback: 1.0.0 # Optional fallback tag to use when no tag can be found
+          #workingDirectory: another/path/where/a/git/repo/is/checked/out # Optional alternative working directory
       - name: 'Get next minor version'
         id: semvers
         uses: "WyriHaximus/github-action-next-semvers@v1"

action.yml

@@ -10,6 +10,10 @@ inputs:
   prefix:
     description: 'Prefix to query the tag by'
     required: false
+  workingDirectory:
+    description: The directory to run this workflow in
+    default: ""
+    required: false
 outputs:
   tag:
     description: 'Latest tag'

main.js

@@ -1,8 +1,9 @@
 const { exec } = require('child_process');
 const fs = require('fs');
 const tagPrefix = `${process.env.INPUT_PREFIX || ''}*`;
+const workingDirectory = process.env.INPUT_WORKINGDIRECTORY || null;
 
-exec(`git for-each-ref --sort=-creatordate --count 1 --format="%(refname:short)" "refs/tags/${tagPrefix}"`, (err, tag, stderr) => {
+exec(`git for-each-ref --sort=-creatordate --count 1 --format="%(refname:short)" "refs/tags/${tagPrefix}"`, {cwd: workingDirectory}, (err, tag, stderr) => {
     tag = tag.trim();
 
     if (err) {
@@ -19,7 +20,7 @@ exec(`git for-each-ref --sort=-creatordate --count 1 --format="%(refname:short)"
         process.exit(0);
     }
 
-    exec(`git log -1 --format=%at ${tag}`, (err, timestamp, stderr) => {
+    exec(`git log -1 --format=%at ${tag}`, {cwd: workingDirectory}, (err, timestamp, stderr) => {
         if (err) {
             console.log('\x1b[33m%s\x1b[0m', 'Could not find any timestamp because: ');
             console.log('\x1b[31m%s\x1b[0m', stderr);