improve error message if git command fails (#543)

package.json

@@ -50,16 +50,17 @@
   },
   "homepage": "https://github.com/typicode/husky#readme",
   "dependencies": {
+    "chalk": "^2.4.2",
     "cosmiconfig": "^5.2.1",
     "execa": "^1.0.0",
     "get-stdin": "^7.0.0",
     "is-ci": "^2.0.0",
+    "opencollective-postinstall": "^2.0.2",
     "pkg-dir": "^4.2.0",
     "please-upgrade-node": "^3.1.1",
     "read-pkg": "^5.1.1",
     "run-node": "^1.0.0",
-    "slash": "^3.0.0",
-    "opencollective-postinstall": "^2.0.2"
+    "slash": "^3.0.0"
   },
   "devDependencies": {
     "@types/cosmiconfig": "^5.0.3",

src/installer/bin.ts

@@ -1,3 +1,4 @@
+import chalk from 'chalk'
 import isCI from 'is-ci'
 import path from 'path'
 import debug from '../debug'
@@ -34,6 +35,6 @@ try {
     uninstall(absoluteGitDir, huskyDir)
   }
 } catch (error) {
-  console.log(error.message.trim())
-  console.log(`husky > Failed to ${action}`)
+  console.log(chalk.red(error.message.trim()))
+  console.log(chalk.red(`husky > Failed to ${action}`))
 }

src/installer/gitRevParse.ts

@@ -5,16 +5,11 @@ export default function(): {
   topLevel: string
   absoluteGitDir: string
 } {
-  let result
-  try {
-    result = execa.sync('git', [
-      'rev-parse',
-      '--show-toplevel',
-      '--absolute-git-dir'
-    ])
-  } catch (error) {
-    throw new Error(error.stderr)
-  }
+  const result = execa.sync('git', [
+    'rev-parse',
+    '--show-toplevel',
+    '--absolute-git-dir'
+  ])
 
   const [topLevel, absoluteGitDir] = result.stdout
     .trim()