Npx command to setup default config

[grizlizli]

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User story

As a developer, I would like to setup the CLI as easy as possible.

Running the command such as npx code-pushup init should create code-pushup.config.[ ts | js | mjs ] file. init command should have arguments for file extension, default ts.

Acceptance criteria

Running the above mentioned command should generate the config file in the project.

Add package create-cli:

• [x] create create-cli package to enable the npx init @code-pushup/cli command. The init command translates to npm exec @code-pushup/create-cli.
  #779
• [x] create init script that is able to reuse the nx-plugin logic

Extend nx-plugin

• [ ] extend the ext to accept a ext options to specify the file extension.
• [ ] auto detect typescript and take ts if given. otherwise take mjs as extension.

Implementation details

Generate a config file in the root of the project.

[vmasek]

@BioPhoton Please finalize the issue for refinement

[BioPhoton]

As this has quite a decent overlap with the nx generators we could do the following:

0. npm init @code-pushup/cli -> npm exec @code-pushup/create-cli
1. create a publishable package create-cli
2. inside use nx g @code-pushup/nx-plugin:configuration
3. 1. I have to figure out how to execute the generator without a nx.json prelent.

@matejchalk WDYT?

[matejchalk]

As this has quite a decent overlap with the nx generators we could do the following:

0. npm init @code-pushup/cli -> npm exec @code-pushup/create-cli
1. create a publishable package create-cli
2. inside use nx g @code-pushup/nx-plugin:configuration 2.1. I have to figure out how to execute the generator without a nx.json prelsent.

Yes! Having a create- package would give us compatibility with non-Nx codebases, since this package initializer format is supported by NPM, PNPM and Yarn 1.

[BioPhoton]

Updated issue and started work.