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81b50f3ce4
This shrinks the top-level directory a bit, and makes it much more pleasant to use auto-completion on the thing. Instead of [torvalds@nehalem git]$ em buil<tab> Display all 180 possibilities? (y or n) [torvalds@nehalem git]$ em builtin-sh builtin-shortlog.c builtin-show-branch.c builtin-show-ref.c builtin-shortlog.o builtin-show-branch.o builtin-show-ref.o [torvalds@nehalem git]$ em builtin-shor<tab> builtin-shortlog.c builtin-shortlog.o [torvalds@nehalem git]$ em builtin-shortlog.c you get [torvalds@nehalem git]$ em buil<tab> [type] builtin/ builtin.h [torvalds@nehalem git]$ em builtin [auto-completes to] [torvalds@nehalem git]$ em builtin/sh<tab> [type] shortlog.c shortlog.o show-branch.c show-branch.o show-ref.c show-ref.o [torvalds@nehalem git]$ em builtin/sho [auto-completes to] [torvalds@nehalem git]$ em builtin/shor<tab> [type] shortlog.c shortlog.o [torvalds@nehalem git]$ em builtin/shortlog.c which doesn't seem all that different, but not having that annoying break in "Display all 180 possibilities?" is quite a relief. NOTE! If you do this in a clean tree (no object files etc), or using an editor that has auto-completion rules that ignores '*.o' files, you won't see that annoying 'Display all 180 possibilities?' message - it will just show the choices instead. I think bash has some cut-off around 100 choices or something. So the reason I see this is that I'm using an odd editory, and thus don't have the rules to cut down on auto-completion. But you can simulate that by using 'ls' instead, or something similar. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
#include "builtin.h"
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#include "cache.h"
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#include "commit.h"
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#include "parse-options.h"
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static int show_merge_base(struct commit **rev, int rev_nr, int show_all)
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{
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struct commit_list *result;
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result = get_merge_bases_many(rev[0], rev_nr - 1, rev + 1, 0);
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if (!result)
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return 1;
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while (result) {
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printf("%s\n", sha1_to_hex(result->item->object.sha1));
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if (!show_all)
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return 0;
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result = result->next;
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}
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return 0;
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}
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static const char * const merge_base_usage[] = {
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"git merge-base [-a|--all] <commit> <commit>...",
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NULL
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};
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static struct commit *get_commit_reference(const char *arg)
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{
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unsigned char revkey[20];
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struct commit *r;
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if (get_sha1(arg, revkey))
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die("Not a valid object name %s", arg);
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r = lookup_commit_reference(revkey);
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if (!r)
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die("Not a valid commit name %s", arg);
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return r;
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}
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int cmd_merge_base(int argc, const char **argv, const char *prefix)
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{
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struct commit **rev;
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int rev_nr = 0;
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int show_all = 0;
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struct option options[] = {
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OPT_BOOLEAN('a', "all", &show_all, "outputs all common ancestors"),
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OPT_END()
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};
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git_config(git_default_config, NULL);
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argc = parse_options(argc, argv, prefix, options, merge_base_usage, 0);
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if (argc < 2)
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usage_with_options(merge_base_usage, options);
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rev = xmalloc(argc * sizeof(*rev));
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while (argc-- > 0)
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rev[rev_nr++] = get_commit_reference(*argv++);
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return show_merge_base(rev, rev_nr, show_all);
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}
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