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Comment by jtreminio | Hacker News Reader

It generates a map file when you run `composer install` and many of the several other commands.

Yours is not really a critique of composer, since it's not a daemon or a continuously run script. You run it once and done.

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No, it is though, because other package managers are not daemons and they don't have this problem.

Composer is optimized for how php executes which is once per request. If you want to compute namespaces per request that's your choice.

If you wish to daemonize it have a file change listener run it when it observes file system changes in the appropriate directory. If that is too much work a quick hack would be:

    watch -n 10 composer dumpautoloaf --no-scripts &

Full disclosure: I did not verify this command would work well

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