diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-22 08:42:18 -0800 |
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committer | Junio C Hamano <gitster@pobox.com> | 2010-02-22 14:29:41 -0800 |
commit | 81b50f3ce40bfdd66e5d967bf82be001039a9a98 (patch) | |
tree | 7e86bb81e83c9fad73dcbdaa0ef33038137b4274 /builtin-name-rev.c | |
parent | Merge branch 'ml/maint-grep-doc' (diff) | |
download | tgif-81b50f3ce40bfdd66e5d967bf82be001039a9a98.tar.xz |
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-name-rev.c')
-rw-r--r-- | builtin-name-rev.c | 305 |
1 files changed, 0 insertions, 305 deletions
diff --git a/builtin-name-rev.c b/builtin-name-rev.c deleted file mode 100644 index 06a38ac8c1..0000000000 --- a/builtin-name-rev.c +++ /dev/null @@ -1,305 +0,0 @@ -#include "builtin.h" -#include "cache.h" -#include "commit.h" -#include "tag.h" -#include "refs.h" -#include "parse-options.h" - -#define CUTOFF_DATE_SLOP 86400 /* one day */ - -typedef struct rev_name { - const char *tip_name; - int generation; - int distance; -} rev_name; - -static long cutoff = LONG_MAX; - -/* How many generations are maximally preferred over _one_ merge traversal? */ -#define MERGE_TRAVERSAL_WEIGHT 65535 - -static void name_rev(struct commit *commit, - const char *tip_name, int generation, int distance, - int deref) -{ - struct rev_name *name = (struct rev_name *)commit->util; - struct commit_list *parents; - int parent_number = 1; - - if (!commit->object.parsed) - parse_commit(commit); - - if (commit->date < cutoff) - return; - - if (deref) { - char *new_name = xmalloc(strlen(tip_name)+3); - strcpy(new_name, tip_name); - strcat(new_name, "^0"); - tip_name = new_name; - - if (generation) - die("generation: %d, but deref?", generation); - } - - if (name == NULL) { - name = xmalloc(sizeof(rev_name)); - commit->util = name; - goto copy_data; - } else if (name->distance > distance) { -copy_data: - name->tip_name = tip_name; - name->generation = generation; - name->distance = distance; - } else - return; - - for (parents = commit->parents; - parents; - parents = parents->next, parent_number++) { - if (parent_number > 1) { - int len = strlen(tip_name); - char *new_name = xmalloc(len + - 1 + decimal_length(generation) + /* ~<n> */ - 1 + 2 + /* ^NN */ - 1); - - if (len > 2 && !strcmp(tip_name + len - 2, "^0")) - len -= 2; - if (generation > 0) - sprintf(new_name, "%.*s~%d^%d", len, tip_name, - generation, parent_number); - else - sprintf(new_name, "%.*s^%d", len, tip_name, - parent_number); - - name_rev(parents->item, new_name, 0, - distance + MERGE_TRAVERSAL_WEIGHT, 0); - } else { - name_rev(parents->item, tip_name, generation + 1, - distance + 1, 0); - } - } -} - -struct name_ref_data { - int tags_only; - int name_only; - const char *ref_filter; -}; - -static int name_ref(const char *path, const unsigned char *sha1, int flags, void *cb_data) -{ - struct object *o = parse_object(sha1); - struct name_ref_data *data = cb_data; - int deref = 0; - - if (data->tags_only && prefixcmp(path, "refs/tags/")) - return 0; - - if (data->ref_filter && fnmatch(data->ref_filter, path, 0)) - return 0; - - while (o && o->type == OBJ_TAG) { - struct tag *t = (struct tag *) o; - if (!t->tagged) - break; /* broken repository */ - o = parse_object(t->tagged->sha1); - deref = 1; - } - if (o && o->type == OBJ_COMMIT) { - struct commit *commit = (struct commit *)o; - - if (!prefixcmp(path, "refs/heads/")) - path = path + 11; - else if (data->tags_only - && data->name_only - && !prefixcmp(path, "refs/tags/")) - path = path + 10; - else if (!prefixcmp(path, "refs/")) - path = path + 5; - - name_rev(commit, xstrdup(path), 0, 0, deref); - } - return 0; -} - -/* returns a static buffer */ -static const char *get_rev_name(const struct object *o) -{ - static char buffer[1024]; - struct rev_name *n; - struct commit *c; - - if (o->type != OBJ_COMMIT) - return NULL; - c = (struct commit *) o; - n = c->util; - if (!n) - return NULL; - - if (!n->generation) - return n->tip_name; - else { - int len = strlen(n->tip_name); - if (len > 2 && !strcmp(n->tip_name + len - 2, "^0")) - len -= 2; - snprintf(buffer, sizeof(buffer), "%.*s~%d", len, n->tip_name, - n->generation); - - return buffer; - } -} - -static void show_name(const struct object *obj, - const char *caller_name, - int always, int allow_undefined, int name_only) -{ - const char *name; - const unsigned char *sha1 = obj->sha1; - - if (!name_only) - printf("%s ", caller_name ? caller_name : sha1_to_hex(sha1)); - name = get_rev_name(obj); - if (name) - printf("%s\n", name); - else if (allow_undefined) - printf("undefined\n"); - else if (always) - printf("%s\n", find_unique_abbrev(sha1, DEFAULT_ABBREV)); - else - die("cannot describe '%s'", sha1_to_hex(sha1)); -} - -static char const * const name_rev_usage[] = { - "git name-rev [options] ( --all | --stdin | <commit>... )", - NULL -}; - -static void name_rev_line(char *p, struct name_ref_data *data) -{ - int forty = 0; - char *p_start; - for (p_start = p; *p; p++) { -#define ishex(x) (isdigit((x)) || ((x) >= 'a' && (x) <= 'f')) - if (!ishex(*p)) - forty = 0; - else if (++forty == 40 && - !ishex(*(p+1))) { - unsigned char sha1[40]; - const char *name = NULL; - char c = *(p+1); - int p_len = p - p_start + 1; - - forty = 0; - - *(p+1) = 0; - if (!get_sha1(p - 39, sha1)) { - struct object *o = - lookup_object(sha1); - if (o) - name = get_rev_name(o); - } - *(p+1) = c; - - if (!name) - continue; - - if (data->name_only) - printf("%.*s%s", p_len - 40, p_start, name); - else - printf("%.*s (%s)", p_len, p_start, name); - p_start = p + 1; - } - } - - /* flush */ - if (p_start != p) - fwrite(p_start, p - p_start, 1, stdout); -} - -int cmd_name_rev(int argc, const char **argv, const char *prefix) -{ - struct object_array revs = { 0, 0, NULL }; - int all = 0, transform_stdin = 0, allow_undefined = 1, always = 0; - struct name_ref_data data = { 0, 0, NULL }; - struct option opts[] = { - OPT_BOOLEAN(0, "name-only", &data.name_only, "print only names (no SHA-1)"), - OPT_BOOLEAN(0, "tags", &data.tags_only, "only use tags to name the commits"), - OPT_STRING(0, "refs", &data.ref_filter, "pattern", - "only use refs matching <pattern>"), - OPT_GROUP(""), - OPT_BOOLEAN(0, "all", &all, "list all commits reachable from all refs"), - OPT_BOOLEAN(0, "stdin", &transform_stdin, "read from stdin"), - OPT_BOOLEAN(0, "undefined", &allow_undefined, "allow to print `undefined` names"), - OPT_BOOLEAN(0, "always", &always, - "show abbreviated commit object as fallback"), - OPT_END(), - }; - - git_config(git_default_config, NULL); - argc = parse_options(argc, argv, prefix, opts, name_rev_usage, 0); - if (!!all + !!transform_stdin + !!argc > 1) { - error("Specify either a list, or --all, not both!"); - usage_with_options(name_rev_usage, opts); - } - if (all || transform_stdin) - cutoff = 0; - - for (; argc; argc--, argv++) { - unsigned char sha1[20]; - struct object *o; - struct commit *commit; - - if (get_sha1(*argv, sha1)) { - fprintf(stderr, "Could not get sha1 for %s. Skipping.\n", - *argv); - continue; - } - - o = deref_tag(parse_object(sha1), *argv, 0); - if (!o || o->type != OBJ_COMMIT) { - fprintf(stderr, "Could not get commit for %s. Skipping.\n", - *argv); - continue; - } - - commit = (struct commit *)o; - if (cutoff > commit->date) - cutoff = commit->date; - add_object_array((struct object *)commit, *argv, &revs); - } - - if (cutoff) - cutoff = cutoff - CUTOFF_DATE_SLOP; - for_each_ref(name_ref, &data); - - if (transform_stdin) { - char buffer[2048]; - - while (!feof(stdin)) { - char *p = fgets(buffer, sizeof(buffer), stdin); - if (!p) - break; - name_rev_line(p, &data); - } - } else if (all) { - int i, max; - - max = get_max_object_index(); - for (i = 0; i < max; i++) { - struct object *obj = get_indexed_object(i); - if (!obj) - continue; - show_name(obj, NULL, - always, allow_undefined, data.name_only); - } - } else { - int i; - for (i = 0; i < revs.nr; i++) - show_name(revs.objects[i].item, revs.objects[i].name, - always, allow_undefined, data.name_only); - } - - return 0; -} |