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git-rev-list: make --dense the default (and introduce "--sparse")

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This actually does three things:

 - make "--dense" the default for git-rev-list. Since dense is a no-op if
   no filenames are given, this doesn't actually change any historical
   behaviour, but it's logically the right default (if we want to prune on
   filenames, do it fully. The sparse "merge-only" thing may be useful,
   but it's not what you'd normally expect)

 - make "git-rev-parse" show the default revision control before it shows
   any pathnames.

   This was a real bug, but nobody would ever have noticed, because
   the default thing tends to only make sense for git-rev-list, and
   git-rev-list didn't use to take pathnames.

 - it changes "git-rev-list" to match the other commands that take a mix
   of revisions and filenames - it no longer requires the "--" before
   filenames (although you still need to do it if a filename could be
   confused with a revision name, eg "gitk" in the git archive)

This all just makes for much more pleasant and obvous usage. Just doing a

	gitk t/

does the obvious thing: it will show the history as it concerns the "t/"
subdirectory.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Linus Torvalds
2005-10-25 15:24:55 -07:00
committed by Junio C Hamano
parent bd321bcc51
commit 7b34c2fae0
2 changed files with 19 additions and 8 deletions
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2
rev-parse.c
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@ -153,6 +153,7 @@ static void show_datestring(const char *flag, const char *datestr)
static void show_file(const char *arg)
{
show_default();
if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV))
show(arg);
}
@ -174,7 +175,6 @@ int main(int argc, char **argv)
if (*arg == '-') {
if (!strcmp(arg, "--")) {
as_is = 1;
show_default();
/* Pass on the "--" if we show anything but files.. */
if (filter & (DO_FLAGS | DO_REVS))
show_file(arg);