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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-22 16:42:18 (GMT)
committerJunio C Hamano <gitster@pobox.com>2010-02-22 22:29:41 (GMT)
commit81b50f3ce40bfdd66e5d967bf82be001039a9a98 (patch)
tree7e86bb81e83c9fad73dcbdaa0ef33038137b4274 /builtin/merge-recursive.c
parent241b9254e1c8ff071d8054f8b6fbe1883b389d69 (diff)
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Move 'builtin-*' into a 'builtin/' subdirectory
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>
Diffstat (limited to 'builtin/merge-recursive.c')
-rw-r--r--builtin/merge-recursive.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/builtin/merge-recursive.c b/builtin/merge-recursive.c
new file mode 100644
index 0000000..d8875d5
--- /dev/null
+++ b/builtin/merge-recursive.c
@@ -0,0 +1,84 @@
+#include "cache.h"
+#include "commit.h"
+#include "tag.h"
+#include "merge-recursive.h"
+
+static const char *better_branch_name(const char *branch)
+{
+ static char githead_env[8 + 40 + 1];
+ char *name;
+
+ if (strlen(branch) != 40)
+ return branch;
+ sprintf(githead_env, "GITHEAD_%s", branch);
+ name = getenv(githead_env);
+ return name ? name : branch;
+}
+
+int cmd_merge_recursive(int argc, const char **argv, const char *prefix)
+{
+ const unsigned char *bases[21];
+ unsigned bases_count = 0;
+ int i, failed;
+ unsigned char h1[20], h2[20];
+ struct merge_options o;
+ struct commit *result;
+
+ init_merge_options(&o);
+ if (argv[0] && !suffixcmp(argv[0], "-subtree"))
+ o.subtree_shift = "";
+
+ if (argc < 4)
+ usagef("%s <base>... -- <head> <remote> ...", argv[0]);
+
+ for (i = 1; i < argc; ++i) {
+ const char *arg = argv[i];
+
+ if (!prefixcmp(arg, "--")) {
+ if (!arg[2])
+ break;
+ if (!strcmp(arg+2, "ours"))
+ o.recursive_variant = MERGE_RECURSIVE_OURS;
+ else if (!strcmp(arg+2, "theirs"))
+ o.recursive_variant = MERGE_RECURSIVE_THEIRS;
+ else if (!strcmp(arg+2, "subtree"))
+ o.subtree_shift = "";
+ else if (!prefixcmp(arg+2, "subtree="))
+ o.subtree_shift = arg + 10;
+ else
+ die("Unknown option %s", arg);
+ continue;
+ }
+ if (bases_count < ARRAY_SIZE(bases)-1) {
+ unsigned char *sha = xmalloc(20);
+ if (get_sha1(argv[i], sha))
+ die("Could not parse object '%s'", argv[i]);
+ bases[bases_count++] = sha;
+ }
+ else
+ warning("Cannot handle more than %d bases. "
+ "Ignoring %s.",
+ (int)ARRAY_SIZE(bases)-1, argv[i]);
+ }
+ if (argc - i != 3) /* "--" "<head>" "<remote>" */
+ die("Not handling anything other than two heads merge.");
+
+ o.branch1 = argv[++i];
+ o.branch2 = argv[++i];
+
+ if (get_sha1(o.branch1, h1))
+ die("Could not resolve ref '%s'", o.branch1);
+ if (get_sha1(o.branch2, h2))
+ die("Could not resolve ref '%s'", o.branch2);
+
+ o.branch1 = better_branch_name(o.branch1);
+ o.branch2 = better_branch_name(o.branch2);
+
+ if (o.verbosity >= 3)
+ printf("Merging %s with %s\n", o.branch1, o.branch2);
+
+ failed = merge_recursive_generic(&o, h1, h2, bases_count, bases, &result);
+ if (failed < 0)
+ return 128; /* die() error code */
+ return failed;
+}