[debhelper-devel] Bug#885994: New override type to run additional commands: after_dh_*

[Christoph Berg]

Package: debhelper
Version: 11
Severity: wishlist

Hi,

the existing dh override mechanism is perfect to do things like:

override_dh_strip:
	dh_strip -Xfoo

It is less optimal for adding (rather than overriding) commands:

override_dh_fixperms:
	dh_fixperms
	chmod 4755 debian/foo/usr/bin/foo

This has several problems:
* it's ugly because it repeats "dh_fixperms", and it's also
  error-prone because the explicit dh_fixperms might be forgotten
  (#884419, #884815, #884817),
* it doesn't use the global dh options passed to dh $@ unless they are
  repeated here,
* it defeats parallelization (#881175),
* it might or might not work well with override_dh_*-(arch|indep).

(Examples directly from dh(1)).

I'd like to see after_dh_* as alternative to override_dh_*:

after_dh_fixperms:
	chmod 4755 debian/foo/usr/bin/foo

This looks much cleaner to me. (In fact, the reason I'm filing this
wishlist bug is that I'm always twitching a bit when I have to repeat
dh_foo in the override_dh_foo incantation.)

Thanks for considering,
Christoph
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