The __gitdir function is duplicated between completion and prompt
scripts, and these definitions should not diverge; otherwise one of
them can be subtly broken depending on the order the user's shell
dot-sources them.
Leave a note to people who may want to touch one copy to make sure
they update the other one in sync. Hopefully this line would also
appear in the context of the patch to allow reviewers to notice a
patch that attempts to update only one of them.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
bash-completion 1.90 shipped with support to load completions
dynamically[1], which means the git completion script wouldn't be loaded
until the user types 'git <tab>'--this creates a problem to people using
__git_ps1(); that function won't be available when the shell is first
created.
For now distributions have workarounded this issue by moving the git
completion to the "compatdir"[2]; this of course is not ideal.
The solution, proposed by Kerrick Staley[3], is to split the git script
in two; the part that deals with __git_ps1() in one (i.e.
git-prompt.sh), and everything else in another (i.e.
git-completion.bash).
Another benefit of this is that zsh user that are not interested in the
bash completion can use it for their prompts, which has been tried
before[4].
The only slight issue is that __gitdir() would be duplicated, but this
is probably not a big deal.
So let's go ahead and move __git_ps1() to a new file.
While at this, I took the liberty to reformat the help text in the new
file.
[1] http://anonscm.debian.org/gitweb/?p=bash-completion/bash-completion.git;a=commitdiff;h=99c4f7f25f50a7cb2fce86055bddfe389effa559
[2] http://projects.archlinux.org/svntogit/packages.git/commit/trunk?h=packages/git&id=974380fabb8f9f412990b17063bf578d98c44a82
[3] http://mid.gmane.org/CANaWP3w9KDu57aHquRRYt8td_haSWTBKs7zUHy-xu0B61gmr9A@mail.gmail.com
[4] http://mid.gmane.org/1303824288-15591-1-git-send-email-mstormo@gmail.com
Cc: Kerrick Staley <mail@kerrickstaley.com>
Cc: Marius Storm-Olsen <mstormo@gmail.com>
Cc: Ville Skyttä <ville.skytta@iki.fi>
Cc: Dan McGee <dan@archlinux.org>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
