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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>
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
#include "cache.h"
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#include "refs.h"
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#include "builtin.h"
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#include "parse-options.h"
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static const char * const git_update_ref_usage[] = {
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"git update-ref [options] -d <refname> [<oldval>]",
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"git update-ref [options] <refname> <newval> [<oldval>]",
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NULL
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};
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int cmd_update_ref(int argc, const char **argv, const char *prefix)
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{
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const char *refname, *oldval, *msg=NULL;
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unsigned char sha1[20], oldsha1[20];
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int delete = 0, no_deref = 0, flags = 0;
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struct option options[] = {
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OPT_STRING( 'm', NULL, &msg, "reason", "reason of the update"),
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OPT_BOOLEAN('d', NULL, &delete, "deletes the reference"),
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OPT_BOOLEAN( 0 , "no-deref", &no_deref,
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"update <refname> not the one it points to"),
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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, git_update_ref_usage,
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0);
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if (msg && !*msg)
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die("Refusing to perform update with empty message.");
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if (delete) {
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if (argc < 1 || argc > 2)
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usage_with_options(git_update_ref_usage, options);
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refname = argv[0];
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oldval = argv[1];
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} else {
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const char *value;
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if (argc < 2 || argc > 3)
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usage_with_options(git_update_ref_usage, options);
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refname = argv[0];
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value = argv[1];
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oldval = argv[2];
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if (get_sha1(value, sha1))
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die("%s: not a valid SHA1", value);
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}
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hashclr(oldsha1); /* all-zero hash in case oldval is the empty string */
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if (oldval && *oldval && get_sha1(oldval, oldsha1))
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die("%s: not a valid old SHA1", oldval);
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if (no_deref)
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flags = REF_NODEREF;
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if (delete)
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return delete_ref(refname, oldval ? oldsha1 : NULL, flags);
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else
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return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL,
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flags, DIE_ON_ERR);
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}
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