fix: bug detecting previous tag when workflow is rerun

src/__tests__/utils.test.ts

@@ -659,95 +659,45 @@ describe('utils test', () => {
     })
   })
   describe('getPreviousGitTag', () => {
-    // Function returns the second latest tag and its SHA
+    // Function returns the second-latest tag and its SHA
     it('should return the second latest tag and its SHA when multiple tags are present', async () => {
-      jest
-        .spyOn(exec, 'getExecOutput')
-        .mockResolvedValueOnce({
-          stdout: 'v1.0.1\nv1.0.0\nv0.9.9',
-          stderr: '',
-          exitCode: 0
-        })
-        .mockResolvedValueOnce({
-          stdout: 'abc123',
-          stderr: '',
-          exitCode: 0
-        })
       const result = await getPreviousGitTag({
         cwd: '.',
         tagsPattern: '*',
-        tagsIgnorePattern: ''
+        tagsIgnorePattern: '',
+        currentBranch: 'v1.0.1'
+      })
+      expect(result).toEqual({
+        tag: 'v1.0.0',
+        sha: 'f0751de6af436d4e79016e2041cf6400e0833653'
       })
-      expect(result).toEqual({tag: 'v1.0.0', sha: 'abc123'})
     })
 
     // Tags are filtered by a specified pattern when 'tagsPattern' is provided
     it('should filter tags by the specified pattern', async () => {
-      jest
-        .spyOn(exec, 'getExecOutput')
-        .mockResolvedValueOnce({
-          stdout: 'v1.0.1\nv1.0.0\nv0.9.9',
-          stderr: '',
-          exitCode: 0
-        })
-        .mockResolvedValueOnce({
-          stdout: 'def456',
-          stderr: '',
-          exitCode: 0
-        })
       const result = await getPreviousGitTag({
         cwd: '.',
         tagsPattern: 'v1.*',
-        tagsIgnorePattern: ''
+        tagsIgnorePattern: '',
+        currentBranch: 'v1.0.1'
+      })
+      expect(result).toEqual({
+        tag: 'v1.0.0',
+        sha: 'f0751de6af436d4e79016e2041cf6400e0833653'
       })
-      expect(result).toEqual({tag: 'v1.0.0', sha: 'def456'})
     })
 
     // Tags are excluded by a specified ignore pattern when 'tagsIgnorePattern' is provided
     it('should exclude tags by the specified ignore pattern', async () => {
-      jest
-        .spyOn(exec, 'getExecOutput')
-        .mockResolvedValueOnce({
-          stdout: 'v1.0.1\nv1.0.0\nv0.9.9',
-          stderr: '',
-          exitCode: 0
-        })
-        .mockResolvedValueOnce({
-          stdout: 'ghi789',
-          stderr: '',
-          exitCode: 0
-        })
       const result = await getPreviousGitTag({
         cwd: '.',
         tagsPattern: '*',
-        tagsIgnorePattern: 'v0.*.*'
-      })
-      expect(result).toEqual({tag: 'v1.0.0', sha: 'ghi789'})
-    })
-
-    // Function executes silently when debug mode is not active
-    it('should execute silently when debug mode is not active', async () => {
-      jest.spyOn(core, 'isDebug').mockReturnValue(false)
-      const spy = jest
-        .spyOn(exec, 'getExecOutput')
-        .mockResolvedValueOnce({
-          stdout: 'v1.0.1\nv1.0.0',
-          stderr: '',
-          exitCode: 0
-        })
-        .mockResolvedValueOnce({
-          stdout: 'jkl012',
-          stderr: '',
-          exitCode: 0
-        })
-      await getPreviousGitTag({
-        cwd: '.',
-        tagsPattern: '*',
-        tagsIgnorePattern: ''
+        tagsIgnorePattern: 'v0.*.*',
+        currentBranch: 'v1.0.1'
       })
-      expect(spy).toHaveBeenCalledWith('git', ['tag', '--sort=-creatordate'], {
-        cwd: '.',
-        silent: true
+      expect(result).toEqual({
+        tag: 'v1.0.0',
+        sha: 'f0751de6af436d4e79016e2041cf6400e0833653'
       })
     })
 
@@ -761,52 +711,25 @@ describe('utils test', () => {
       const result = await getPreviousGitTag({
         cwd: '.',
         tagsPattern: '*',
-        tagsIgnorePattern: ''
+        tagsIgnorePattern: '',
+        currentBranch: ''
       })
       expect(result).toEqual({tag: '', sha: ''})
     })
 
     // Only one tag is available, making it impossible to find a previous tag
     it('should return empty values when only one tag is available', async () => {
       jest.spyOn(exec, 'getExecOutput').mockResolvedValueOnce({
-        stdout: 'v1.0.1',
+        stdout:
+          'v1.0.1|f0751de6af436d4e79016e2041cf6400e0833653|2021-01-01T00:00:00Z',
         stderr: '',
         exitCode: 0
       })
       const result = await getPreviousGitTag({
         cwd: '.',
         tagsPattern: '*',
-        tagsIgnorePattern: ''
-      })
-      expect(result).toEqual({tag: '', sha: ''})
-    })
-
-    // Provided 'tagsPattern' matches no tags
-    it('should return empty values when provided tagsPattern matches no tags', async () => {
-      jest.spyOn(exec, 'getExecOutput').mockResolvedValueOnce({
-        stdout: 'v1.0.1\nv1.0.0',
-        stderr: '',
-        exitCode: 0
-      })
-      const result = await getPreviousGitTag({
-        cwd: '.',
-        tagsPattern: 'nonexistent*',
-        tagsIgnorePattern: ''
-      })
-      expect(result).toEqual({tag: '', sha: ''})
-    })
-
-    // Provided 'tagsIgnorePattern' excludes all tags
-    it('should return empty values when provided tagsIgnorePattern excludes all tags', async () => {
-      jest.spyOn(exec, 'getExecOutput').mockResolvedValueOnce({
-        stdout: 'v1.0.1\nv1.0.0',
-        stderr: '',
-        exitCode: 0
-      })
-      const result = await getPreviousGitTag({
-        cwd: '.',
-        tagsPattern: '*',
-        tagsIgnorePattern: 'v*'
+        tagsIgnorePattern: '',
+        currentBranch: 'v1.0.1'
       })
       expect(result).toEqual({tag: '', sha: ''})
     })
@@ -817,34 +740,13 @@ describe('utils test', () => {
         .spyOn(exec, 'getExecOutput')
         .mockRejectedValue(new Error('git command failed'))
       await expect(
-        getPreviousGitTag({cwd: '.', tagsPattern: '*', tagsIgnorePattern: ''})
-      ).rejects.toThrow('git command failed')
-    })
-
-    // Debug mode logs additional information
-    it('should log additional information when debug mode is active', async () => {
-      jest.spyOn(core, 'isDebug').mockReturnValue(true)
-      const spy = jest
-        .spyOn(exec, 'getExecOutput')
-        .mockResolvedValueOnce({
-          stdout: 'v1.0.1\nv1.0.0',
-          stderr: '',
-          exitCode: 0
+        getPreviousGitTag({
+          cwd: '.',
+          tagsPattern: '*',
+          tagsIgnorePattern: '',
+          currentBranch: 'v1.0.1'
         })
-        .mockResolvedValueOnce({
-          stdout: 'mno345',
-          stderr: '',
-          exitCode: 0
-        })
-      await getPreviousGitTag({
-        cwd: '.',
-        tagsPattern: '*',
-        tagsIgnorePattern: ''
-      })
-      expect(spy).toHaveBeenCalledWith('git', ['tag', '--sort=-creatordate'], {
-        cwd: '.',
-        silent: false
-      })
+      ).rejects.toThrow('git command failed')
     })
   })
 })

src/commitSha.ts

@@ -243,7 +243,8 @@ export const getSHAForNonPullRequestEvent = async ({
       const {sha, tag} = await getPreviousGitTag({
         cwd: workingDirectory,
         tagsPattern: inputs.tagsPattern,
-        tagsIgnorePattern: inputs.tagsIgnorePattern
+        tagsIgnorePattern: inputs.tagsIgnorePattern,
+        currentBranch
       })
       previousSha = sha
       targetBranch = tag

src/utils.ts

@@ -831,53 +831,80 @@ export const cleanShaInput = async ({
 
   return stdout.trim()
 }
+
 export const getPreviousGitTag = async ({
   cwd,
   tagsPattern,
+  currentBranch,
   tagsIgnorePattern
 }: {
   cwd: string
   tagsPattern: string
+  currentBranch: string
   tagsIgnorePattern?: string
 }): Promise<{tag: string; sha: string}> => {
+  const ignorePatterns: string[] = []
+  let currentShaDate: Date | null = null
+
   const {stdout} = await exec.getExecOutput(
     'git',
-    ['tag', '--sort=-creatordate'],
+    [
+      'tag',
+      '--sort=-creatordate',
+      '--format=%(refname:short)|%(objectname)|%(creatordate:iso)'
+    ],
     {
       cwd,
       silent: !core.isDebug()
     }
   )
 
-  let tags = stdout.trim().split('\n')
-
-  if (tagsPattern) {
-    tags = tags.filter(tag => mm.isMatch(tag, tagsPattern))
-  }
-
   if (tagsIgnorePattern) {
-    tags = tags.filter(tag => !mm.isMatch(tag, tagsIgnorePattern))
+    ignorePatterns.push(tagsIgnorePattern)
   }
 
-  if (tags.length < 2) {
-    core.warning('No previous tag found')
-    return {tag: '', sha: ''}
+  if (currentBranch) {
+    ignorePatterns.push(currentBranch)
+    try {
+      const {stdout: currentShaDateOutput} = await exec.getExecOutput(
+        'git',
+        ['show', '-s', '--format=%ai', currentBranch],
+        {
+          cwd,
+          silent: !core.isDebug()
+        }
+      )
+      currentShaDate = new Date(currentShaDateOutput.trim())
+    } catch (error) {
+      // Handle the case where the current branch doesn't exist
+      // This might happen in detached head state
+      core.warning(`Failed to get date for current branch ${currentBranch}`)
+    }
   }
 
-  const previousTag = tags[1]
+  const previousTag: {tag: string; sha: string} = {tag: '', sha: ''}
 
-  const {stdout: stdout2} = await exec.getExecOutput(
-    'git',
-    ['rev-parse', previousTag],
-    {
-      cwd,
-      silent: !core.isDebug()
+  const tags = stdout.trim().split('\n')
+  for (const tagData of tags) {
+    const [tag, sha, dateString] = tagData.split('|')
+    if (!mm.isMatch(tag, tagsPattern) || mm.isMatch(tag, ignorePatterns)) {
+      continue
     }
-  )
+    const date = new Date(dateString)
+    if (currentShaDate && date >= currentShaDate) {
+      continue
+    }
+    // Found a suitable tag, no need to continue
+    previousTag.tag = tag
+    previousTag.sha = sha
+    break
+  }
 
-  const sha = stdout2.trim()
+  if (!previousTag.tag) {
+    core.warning('No previous tag found')
+  }
 
-  return {tag: previousTag, sha}
+  return previousTag
 }
 
 export const canDiffCommits = async ({