Use --git-common-dir

src/installer/__tests__/gitRevParse.ts

@@ -5,12 +5,12 @@ import gitRevParse from '../gitRevParse'
 const root = path.join(__dirname, '../../..')
 
 describe('gitRevParse', (): void => {
-  it('should return topLevel and absoluteGitDir', (): void => {
+  it('should return topLevel and gitCommonDir', (): void => {
     expect(gitRevParse()).toStrictEqual({
       // Git rev-parse uses a different separator on Linux/MacOS and Windows
       // slash is used to normalized the returned value for tests
       topLevel: slash(root),
-      absoluteGitDir: slash(path.join(root, '.git'))
+      gitCommonDir: '.git'
     })
   })
 })

src/installer/bin.ts

@@ -41,17 +41,17 @@ try {
   }
 
   // Get top level and git dir
-  const { topLevel, absoluteGitDir } = gitRevParse()
+  const { topLevel, gitCommonDir } = gitRevParse()
 
   debug('Git rev-parse command returned:')
-  debug(`  topLevel: ${topLevel}`)
-  debug(`  absoluteGitDir: ${absoluteGitDir}`)
+  debug(`  --show-top-level: ${topLevel}`)
+  debug(`  --git-common-dir: ${gitCommonDir}`)
 
   // Install or uninstall
   if (action === 'install') {
-    install(topLevel, absoluteGitDir, huskyDir, isCI)
+    install(topLevel, gitCommonDir, huskyDir, isCI)
   } else {
-    uninstall(absoluteGitDir, huskyDir)
+    uninstall(gitCommonDir, huskyDir)
   }
 
   console.log(`husky > Done`)

src/installer/gitRevParse.ts

@@ -3,15 +3,16 @@ import execa from 'execa'
 
 export default function(): {
   topLevel: string
-  absoluteGitDir: string
+  gitCommonDir: string
 } {
+  // https://github.com/typicode/husky/issues/580
   const result = execa.sync('git', [
     'rev-parse',
     '--show-toplevel',
-    '--absolute-git-dir'
+    '--git-common-dir'
   ])
 
-  const [topLevel, absoluteGitDir] = result.stdout
+  const [topLevel, gitCommonDir] = result.stdout
     .trim()
     .split('\n')
     // Normalize for Windows
@@ -20,9 +21,9 @@ export default function(): {
   // Git rev-parse returns unknown options as is.
   // If we get --absolute-git-dir in the output,
   // it probably means that an older version of Git has been used.
-  if (absoluteGitDir === '--absolute-git-dir') {
-    throw new Error('Husky requires Git >= 2.13.2, please update Git')
+  if (gitCommonDir === '--git-common-dir') {
+    throw new Error('Husky requires Git >= 2.5.1, please update Git')
   }
 
-  return { topLevel, absoluteGitDir }
+  return { topLevel, gitCommonDir }
 }