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refactor: use internal execGit to list staged files
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Iiro Jäppinen
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Jun 18, 2019
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,12 @@ | ||
'use strict' | ||
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const execGit = require('./execGit') | ||
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module.exports = async function getStagedFiles(options) { | ||
try { | ||
const lines = await execGit(['diff', '--staged', '--diff-filter=ACM', '--name-only'], options) | ||
return lines ? lines.split('\n') : [] | ||
} catch (error) { | ||
return null | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,26 @@ | ||
import getStagedFiles from '../src/getStagedFiles' | ||
import execGit from '../src/execGit' | ||
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jest.mock('../src/execGit') | ||
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describe('getStagedFiles', () => { | ||
it('should return array of file names', async () => { | ||
execGit.mockImplementationOnce(async () => 'foo.js\nbar.js') | ||
const staged = await getStagedFiles() | ||
expect(staged).toEqual(['foo.js', 'bar.js']) | ||
}) | ||
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it('should return empty array when no staged files', async () => { | ||
execGit.mockImplementationOnce(async () => '') | ||
const staged = await getStagedFiles() | ||
expect(staged).toEqual([]) | ||
}) | ||
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it('should return null in case of error', async () => { | ||
execGit.mockImplementationOnce(async () => { | ||
throw new Error('fatal: not a git repository (or any of the parent directories): .git') | ||
}) | ||
const staged = await getStagedFiles() | ||
expect(staged).toEqual(null) | ||
}) | ||
}) |
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