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feat: add git status check before transformation #15

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feat: add git status check before transformation #15

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20 changes: 19 additions & 1 deletion commands/transform.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,20 @@ import { run as jscodeshift } from 'jscodeshift/src/Runner'
import { bold } from 'picocolors'
import prompts from 'prompts'
import { TRANSFORM_OPTIONS } from '../config'
import { checkGitStatus } from '../utils/git'

const ignorePaths =
process.env.NODE_ENV === 'test'
? '**/node_modules/**'
: [
'**/node_modules/**',
'**/dist/**',
'**/build/**',
'**/*.test.*',
'**/*.spec.*',
'**/__tests__/**',
'**/__mocks__/**',
]

export function onCancel() {
console.info('> Cancelled process. Program will stop now without any actions. \n')
Expand Down Expand Up @@ -62,13 +76,17 @@ export async function transform(codemodName?: string, source?: string, options?:
process.exit(1)
}

if (!options?.dry) {
checkGitStatus(sourceSelected)
}

const transformerPath = join(transformerDirectory, `${codemodSelected}.js`)

const args: Options = {
...options,
verbose: options?.verbose ? 2 : 0,
babel: false,
ignorePattern: '**/node_modules/**',
ignorePattern: ignorePaths,
extensions: 'cts,mts,ts,js,mjs,cjs',
}

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193 changes: 188 additions & 5 deletions package-lock.json
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1 change: 1 addition & 0 deletions package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@
"dependencies": {
"commander": "^12.1.0",
"fast-glob": "^3.3.2",
"is-git-clean": "^1.1.0",
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Can we try to use child_process exec from nodejs instead of external lib?
https://nodejs.org/api/child_process.html#child_processexeccommand-options-callback

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We can, but if this package already does its job well, why not use it?

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@kjugi kjugi Jan 11, 2025 •
edited
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Shouldn't be that hard to achieve what you want with this proposal. It's probably a different story when something is complex or defeats the purpose of the library (for example commander).

If I had to choose between 10 different scripts vs 10 different packages for small or rather simple things I would pick the first option. It's better as you control this stuff and what it does.

If the given proposal with child_rocess can't be done easily we can revisit this topic

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@kjugi It's not something I would want to create and maintain. Having this package frees us from that work. I don't mind if you do it, but I won't be doing it.

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sure, I can visit this when I have some time. If I fail I want to use execa (or similar) to keep it open for similar ideas in the future

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Yep, you can use it, although it might be something for the future. I'd like to add this protection before launching it, if you agree. If not, we can leave it for the future.

"jscodeshift": "^17.1.1",
"picocolors": "^1.1.1",
"prompts": "^2.4.2"
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20 changes: 20 additions & 0 deletions utils/git.ts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,20 @@
import isGitClean from 'is-git-clean'
import { yellow } from 'picocolors'

export function checkGitStatus(root: string) {
let clean = false

try {
clean = isGitClean.sync(root)
} catch (err) {
if (err?.stderr?.includes('Not a git repository')) {
clean = true
}
}

if (!clean) {
console.log('Thank you for using @expressjs/codemod!\n')
console.log(yellow('But before we continue, please stash or commit your git changes.'))
process.exit(1)
}
}
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