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fix: Run dedupe during upgrade on yarn 3 #5458

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May 9, 2022
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19 changes: 12 additions & 7 deletions packages/cli/src/commands/upgrade.js
Original file line number Diff line number Diff line change
Expand Up @@ -278,24 +278,29 @@ const dedupeDeps = async (task, { verbose }) => {
try {
const yarnVersion = await getCmdMajorVersion('yarn')
const npxVersion = await getCmdMajorVersion('npx')
if (yarnVersion > 1) {
task.skip('Deduplication is only required for <=1.x')
return
}
let npxArgs = []
if (npxVersion > 6) {
npxArgs = ['--yes']
}

await execa('npx', [...npxArgs, 'yarn-deduplicate'], {
const baseExecaArgsForDedupe = {
shell: true,
stdio: verbose ? 'inherit' : 'pipe',
cwd: getPaths().base,
})
}
if (yarnVersion > 1) {
await execa('yarn', ['dedupe'], baseExecaArgsForDedupe)
} else {
Comment on lines +291 to +293
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yarn dedupe was added in v2.2.0 so there is a chance it isn't a valid command.

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Ah gotcha. Great catch—we don't expect users to be on yarn 2, but to be fair we don't have any documentation / checks around that fact, so there's some work to do here. A while back Danny had asked me to make a simple utility for running yarn commands given that we have to support two versions; it's probably time for me to revisit that.

await execa(
'npx',
[...npxArgs, 'yarn-deduplicate'],
baseExecaArgsForDedupe
)
}
} catch (e) {
console.log(c.error(e.message))
throw new Error(
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maybe we can print the correct command based on the yarn version?

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We can but if for some reason regex fails for semver, that's why I kept it one simple catch.

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@dac09 dac09 May 9, 2022

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The one catch is fine, but just suggesting printing different messages

if (yarnVersion > 1) {
 console.log('Failed dedupe step. Run yarn dedupe')
} else {
  console.log('Failed dedupe. run npx yarn-deduplcate')
}

'Could not finish deduplication. If the project is using yarn 1.x, please run `npx yarn-deduplicate`, before continuing'
'Could not finish de-duplication. For yarn 1.x, please run `npx yarn-deduplicate`, or for yarn 3 run `yarn dedupe` before continuing'
)
}
await yarnInstall({ verbose })
Expand Down