CODEGEN-848 - Fix CLI --version flag

[eddeee888]

Description

--version flag was broken because it wasn't explicitly supplied to yargs, which meant it does an automatic lookup starting with the package.json at cwd when run.
For a consumer repo, this will always return the wrong version because the cwd would be the project root.

Related #10397

This PR fixes this issue by preparing the version ahead of runtime:

• by extracting the version in package.json at postbuild time
• inject into a file
• supply to yargs

This approach was chosen over the many options:

1. import {} from '../package.json' does not work in ESM without import attributes i.e. with { type: 'json' }.
2. createRequire from node:module needs import.meta.url which works for ESM, but doesn't work for CJS because it is a syntax error at parse-time.
3. fs.readFile reads from cwd, which means we need to use __dirname or import.meta.url as the starting point. import.meta.url is a syntax error at parse-time for CJS.
4. Create a shim .mts file and dynamically import it at runtime for ESM
5. Use nodenext instead of esnext for module and moduleResolution. Maybe a big change?
6. Ship ESM-only. This is a big change.

Result

Local test

Alpha version test

Type of change

• Bug fix (non-breaking change which fixes an issue)

[changeset-bot]

🦋 Changeset detected

Latest commit: 78bc323

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@graphql-codegen/cli	Patch

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Click here if you're a maintainer who wants to add another changeset to this PR

[eddeee888]

Drive-by fixing these, as they are breaking CI.

These projects have a rust- prefix now so changeset complains they no longer exist

[github-actions]

🚀 Snapshot Release (alpha)

The latest changes of this PR are available as alpha on npm (based on the declared changesets):

Package	Version	Info
@graphql-codegen/cli	7.1.1-alpha-20260531030001-78bc32357d299cbfd3987a33579e7c5533fafe6c	npm ↗︎ unpkg ↗︎

[github-actions]

💻 Website Preview

The latest changes are available as preview in: https://pr-10858.graphql-code-generator.pages.dev

[Copilot]

Pull request overview

This PR fixes the CLI --version output by generating a build-time version module for @graphql-codegen/cli and wiring that value into yargs.

Changes:

• Adds a prepare-cli-version script that writes src/_version.ts from the CLI package version.
• Passes the generated version to yargs in CLI argument parsing.
• Adds dev-test workflow coverage and a patch changeset for the CLI package.

Reviewed changes

Copilot reviewed 7 out of 8 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
scripts/prepare-cli-version.mjs	Generates the CLI version source file before build/publish.
packages/graphql-codegen-cli/src/config.ts	Imports the generated version and supplies it to yargs.
package.json	Adds preparation and dev-test scripts.
dev-test/general/package.json	Adds CJS/ESM scripts for invoking --version.
.gitignore	Ignores the generated version source file.
.github/workflows/main.yml	Runs CLI version checks in dev-test CI.
.changeset/fresh-crabs-open.md	Adds a patch changeset for the CLI fix.
.changeset/config.json	Updates ignored package patterns for changesets.

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[Copilot]

Pull request overview

Copilot reviewed 7 out of 7 changed files in this pull request and generated 3 comments.

[Copilot]

Pull request overview

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.