DWIM 'git show -5' to 'git show --do-walk -5'

To show the last two commits with one command, one might try

 1) git show -s master~2..
 2) git show -s ^master~2 master
 3) git show -s master^ master
 4) git show -s -2 master

Choice (3) works because both commits are listed on the command line.
Choices (1) and (2) have worked ever since v1.6.4-rc~3 (Make 'git
show' more useful, 2009-07-13) disabled --no-walk in this case because
there is no other useful meaning for them to have.  Unfortunately, (4)
does not work: it outputs only one commit, because --no-walk stays on.

So disable --no-walk in this case so ‘git show’ and future ‘git
cherry-pick’ can behave as expected.

As a side effect, this unfortunately changes the meaning of
‘git log --oneline --decorate --no-walk -5 --all’: instead of listing
five refs, after this patch that command would list the five most
recent commits.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Nieder 2010-06-01 03:35:49 -05:00 committed by Junio C Hamano
parent 225c93a3ca
commit 5853caec96

View File

@ -1063,18 +1063,22 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
if (!prefixcmp(arg, "--max-count=")) {
revs->max_count = atoi(arg + 12);
revs->no_walk = 0;
} else if (!prefixcmp(arg, "--skip=")) {
revs->skip_count = atoi(arg + 7);
} else if ((*arg == '-') && isdigit(arg[1])) {
/* accept -<digit>, like traditional "head" */
revs->max_count = atoi(arg + 1);
revs->no_walk = 0;
} else if (!strcmp(arg, "-n")) {
if (argc <= 1)
return error("-n requires an argument");
revs->max_count = atoi(argv[1]);
revs->no_walk = 0;
return 2;
} else if (!prefixcmp(arg, "-n")) {
revs->max_count = atoi(arg + 2);
revs->no_walk = 0;
} else if (!prefixcmp(arg, "--max-age=")) {
revs->max_age = atoi(arg + 10);
} else if (!prefixcmp(arg, "--since=")) {