feat: automatically stage task modifications

.lintstagedrc.json

@@ -1,5 +1,5 @@
 {
-  "*.{js,json,md}": ["prettier --write", "git add"],
-  "*.js": ["npm run lint:base --fix", "git add"],
-  ".*{rc, json}": ["jsonlint  --in-place", "git add"]
+  "*.{js,json,md}": ["prettier --write"],
+  "*.js": ["npm run lint:base --fix"],
+  ".*{rc, json}": ["jsonlint  --in-place"]
 }

lib/gitWorkflow.js

@@ -117,16 +117,25 @@ class GitWorkflow {
   }
 
   /**
-   * Applies back unstaged changes that have been hidden in the stash.
+   * Applies back task modifications, and unstaged changes hidden in the stash.
    * In case of a merge-conflict retry with 3-way merge.
    *
    * @param {Object} [options]
    * @returns {Promise<void>}
    */
-  async restoreUnstagedChanges() {
-    debug('Restoring unstaged changes...')
+  async applyModifications() {
+    let modifiedFiles = await this.execGit(['ls-files', '--modified'])
+    if (modifiedFiles) {
+      modifiedFiles = modifiedFiles.split('\n')
+      debug('Detected files modified by tasks:')
+      debug(modifiedFiles)
+      debug('Adding files to index...')
+      await this.execGit(['add', modifiedFiles])
+      debug('Done adding files to index!')
+    }
 
     if (this.unstagedDiff) {
+      debug('Restoring unstaged changes...')
       try {
         await this.execGit(gitApplyArgs, { input: `${this.unstagedDiff}\n` })
       } catch (error) {
@@ -143,8 +152,8 @@ class GitWorkflow {
           throw new Error('Unstaged changes could not be restored due to a merge conflict!')
         }
       }
+      debug('Done restoring unstaged changes!')
     }
-    debug('Done restoring unstaged changes!')
 
     if (this.untrackedFiles) {
       debug('Restoring untracked files...')

lib/runAll.js

@@ -115,9 +115,9 @@ module.exports = async function runAll(
           task: () => new Listr(tasks, { ...listrOptions, concurrent: true, exitOnError: false })
         },
         {
-          title: 'Restoring unstaged changes...',
+          title: 'Applying modifications...',
           skip: ctx => ctx.hasErrors && 'Skipped because of errors from tasks',
-          task: () => git.restoreUnstagedChanges()
+          task: () => git.applyModifications()
         },
         {
           title: 'Reverting to original state...',

test/__mocks__/gitWorkflow.js

@@ -1,6 +1,6 @@
 const stub = {
   stashBackup: jest.fn().mockImplementation(() => Promise.resolve()),
-  restoreUnstagedChanges: jest.fn().mockImplementation(() => Promise.resolve()),
+  applyModifications: jest.fn().mockImplementation(() => Promise.resolve()),
   restoreOriginalState: jest.fn().mockImplementation(() => Promise.resolve()),
   dropBackup: jest.fn().mockImplementation(() => Promise.resolve())
 }

test/__snapshots__/runAll.spec.js.snap

@@ -10,8 +10,8 @@ LOG echo \\"sample\\" [started]
 LOG echo \\"sample\\" [completed]
 LOG Running tasks for *.js [completed]
 LOG Running tasks... [completed]
-LOG Restoring unstaged changes... [started]
-LOG Restoring unstaged changes... [completed]
+LOG Applying modifications... [started]
+LOG Applying modifications... [completed]
 LOG Cleaning up... [started]
 LOG Cleaning up... [completed]"
 `;
@@ -33,8 +33,8 @@ LOG →
 LOG Running tasks for *.js [failed]
 LOG → 
 LOG Running tasks... [failed]
-LOG Restoring unstaged changes... [started]
-LOG Restoring unstaged changes... [skipped]
+LOG Applying modifications... [started]
+LOG Applying modifications... [skipped]
 LOG → Skipped because of errors from tasks
 LOG Reverting to original state... [started]
 LOG Reverting to original state... [completed]
@@ -64,8 +64,8 @@ LOG →
 LOG Running tasks for *.js [failed]
 LOG → 
 LOG Running tasks... [failed]
-LOG Restoring unstaged changes... [started]
-LOG Restoring unstaged changes... [skipped]
+LOG Applying modifications... [started]
+LOG Applying modifications... [skipped]
 LOG → Skipped because of errors from tasks
 LOG Reverting to original state... [started]
 LOG Reverting to original state... [completed]
@@ -103,8 +103,8 @@ LOG echo \\"sample\\" [started]
 LOG echo \\"sample\\" [completed]
 LOG Running tasks for *.js [completed]
 LOG Running tasks... [completed]
-LOG Restoring unstaged changes... [started]
-LOG Restoring unstaged changes... [completed]
+LOG Applying modifications... [started]
+LOG Applying modifications... [completed]
 LOG Cleaning up... [started]
 LOG Cleaning up... [completed]"
 `;

test/runAll.unmocked.spec.js

@@ -26,7 +26,7 @@ const testJsFileUnfixable = `const obj = {
     'foo': 'bar'
 `
 
-const fixJsConfig = { config: { '*.js': ['prettier --write', 'git add'] } }
+const fixJsConfig = { config: { '*.js': 'prettier --write' } }
 
 const isAppveyor = !!process.env.APPVEYOR
 const osTmpDir = isAppveyor ? 'C:\\projects' : fs.realpathSync(os.tmpdir())