Allow log output format configuration

[leonheess]

Allow the user to configure certain properties to influence how the log output is formatted. It could look something like this:

export default defineConfig({
  log: {
    disableIndentation: true,         // no space at the beginning of each log message
    hideTimestamp: true,              // no timestamps
    hideLabel: true,                  // no "[ v i t e ]"
    disableColors: false,             // helpful to colorblind people
    highContrast: false,              // helpful to colorblind people
    ...                               // these are just some examples, there could be many more options
  },
});

This would make it easier to use Vite with process managers that already add timestamps and labels to logs

[bluwy]

I think you can use the customLogger option to achieve those. Looks like we forgot to document that.

[leonheess]

Potentially relevant:

#1220

https://github.com/vitejs/vite/pull/10108/files#diff-f7d4a01431aa2057a8d0c4ff1b1c233af89820b533c5fe3a64bc813eee69bab0

[bluwy]

Custom logger is now documented in #10108