A bit of a recap--this feature was requested by a user a few weeks
ago, and I wrote a short patch that implemented partial coloring. The
main criticisms of this patch were:
- The name of the configuration key to turn on interactive coloring
was not well chosen.
- The color attribute synonyms "clear" and "reset" were used
interchangeably, though "reset" is what the rest of git uses.
- The colors were not user-settable.
When the above were fixed, the new patch garnered the following
criticism:
- The color names accepted in .gitconfig were perl color names (to be
fed to Term::ANSIColor), and this was not consistent with the rest
of git. For example, "red blue ul" would have to be written, "red
on_blue underline".
Fixing this (the colors could not be converted by a regex, but had to
be parsed) was very libraryish, and also a little confusing. I was
given a suggestion or two about how to make it more readable. This
parsing also needed to be added to Git.pm instead of
git-add--interactive.perl.
In the next iteration, all of the above were fixed, but as Jeff King
pointed out, I was printing $color before the beginning of a string,
and printing $clear at the end, which allowed ${COLOR}text\n${RESET},
which looks bad on some terminals.
Last iteration, it was pointed out that print_colored must take a
file handle to pave the way for pager support, and Junio Hamano and Jeff
King both gave suggestions as to how, and Junio sent me few changes
that allow printing colored diffs in addition to prompts. I ended up
making changes so that the two color functions can be used with perl's
print():
print colored($color, "some text")
print color_diff_hunk($hunk)
This way, file handles can be added directly to the print calls, when
support for $PAGER is added.
Let me know if other things need correction.
Dan
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