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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-show-branch.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-show-branch.c')
-rw-r--r--builtin-show-branch.c967
1 files changed, 0 insertions, 967 deletions
diff --git a/builtin-show-branch.c b/builtin-show-branch.c
deleted file mode 100644
index 35a709e..0000000
--- a/builtin-show-branch.c
+++ /dev/null
@@ -1,967 +0,0 @@
-#include "cache.h"
-#include "commit.h"
-#include "refs.h"
-#include "builtin.h"
-#include "color.h"
-#include "parse-options.h"
-
-static const char* show_branch_usage[] = {
- "git show-branch [-a|--all] [-r|--remotes] [--topo-order | --date-order] [--current] [--color | --no-color] [--sparse] [--more=<n> | --list | --independent | --merge-base] [--no-name | --sha1-name] [--topics] [<rev> | <glob>]...",
- "git show-branch (-g|--reflog)[=<n>[,<base>]] [--list] [<ref>]",
- NULL
-};
-
-static int showbranch_use_color = -1;
-static char column_colors[][COLOR_MAXLEN] = {
- GIT_COLOR_RED,
- GIT_COLOR_GREEN,
- GIT_COLOR_YELLOW,
- GIT_COLOR_BLUE,
- GIT_COLOR_MAGENTA,
- GIT_COLOR_CYAN,
-};
-
-#define COLUMN_COLORS_MAX (ARRAY_SIZE(column_colors))
-
-static int default_num;
-static int default_alloc;
-static const char **default_arg;
-
-#define UNINTERESTING 01
-
-#define REV_SHIFT 2
-#define MAX_REVS (FLAG_BITS - REV_SHIFT) /* should not exceed bits_per_int - REV_SHIFT */
-
-#define DEFAULT_REFLOG 4
-
-static const char *get_color_code(int idx)
-{
- if (showbranch_use_color)
- return column_colors[idx];
- return "";
-}
-
-static const char *get_color_reset_code(void)
-{
- if (showbranch_use_color)
- return GIT_COLOR_RESET;
- return "";
-}
-
-static struct commit *interesting(struct commit_list *list)
-{
- while (list) {
- struct commit *commit = list->item;
- list = list->next;
- if (commit->object.flags & UNINTERESTING)
- continue;
- return commit;
- }
- return NULL;
-}
-
-static struct commit *pop_one_commit(struct commit_list **list_p)
-{
- struct commit *commit;
- struct commit_list *list;
- list = *list_p;
- commit = list->item;
- *list_p = list->next;
- free(list);
- return commit;
-}
-
-struct commit_name {
- const char *head_name; /* which head's ancestor? */
- int generation; /* how many parents away from head_name */
-};
-
-/* Name the commit as nth generation ancestor of head_name;
- * we count only the first-parent relationship for naming purposes.
- */
-static void name_commit(struct commit *commit, const char *head_name, int nth)
-{
- struct commit_name *name;
- if (!commit->util)
- commit->util = xmalloc(sizeof(struct commit_name));
- name = commit->util;
- name->head_name = head_name;
- name->generation = nth;
-}
-
-/* Parent is the first parent of the commit. We may name it
- * as (n+1)th generation ancestor of the same head_name as
- * commit is nth generation ancestor of, if that generation
- * number is better than the name it already has.
- */
-static void name_parent(struct commit *commit, struct commit *parent)
-{
- struct commit_name *commit_name = commit->util;
- struct commit_name *parent_name = parent->util;
- if (!commit_name)
- return;
- if (!parent_name ||
- commit_name->generation + 1 < parent_name->generation)
- name_commit(parent, commit_name->head_name,
- commit_name->generation + 1);
-}
-
-static int name_first_parent_chain(struct commit *c)
-{
- int i = 0;
- while (c) {
- struct commit *p;
- if (!c->util)
- break;
- if (!c->parents)
- break;
- p = c->parents->item;
- if (!p->util) {
- name_parent(c, p);
- i++;
- }
- else
- break;
- c = p;
- }
- return i;
-}
-
-static void name_commits(struct commit_list *list,
- struct commit **rev,
- char **ref_name,
- int num_rev)
-{
- struct commit_list *cl;
- struct commit *c;
- int i;
-
- /* First give names to the given heads */
- for (cl = list; cl; cl = cl->next) {
- c = cl->item;
- if (c->util)
- continue;
- for (i = 0; i < num_rev; i++) {
- if (rev[i] == c) {
- name_commit(c, ref_name[i], 0);
- break;
- }
- }
- }
-
- /* Then commits on the first parent ancestry chain */
- do {
- i = 0;
- for (cl = list; cl; cl = cl->next) {
- i += name_first_parent_chain(cl->item);
- }
- } while (i);
-
- /* Finally, any unnamed commits */
- do {
- i = 0;
- for (cl = list; cl; cl = cl->next) {
- struct commit_list *parents;
- struct commit_name *n;
- int nth;
- c = cl->item;
- if (!c->util)
- continue;
- n = c->util;
- parents = c->parents;
- nth = 0;
- while (parents) {
- struct commit *p = parents->item;
- char newname[1000], *en;
- parents = parents->next;
- nth++;
- if (p->util)
- continue;
- en = newname;
- switch (n->generation) {
- case 0:
- en += sprintf(en, "%s", n->head_name);
- break;
- case 1:
- en += sprintf(en, "%s^", n->head_name);
- break;
- default:
- en += sprintf(en, "%s~%d",
- n->head_name, n->generation);
- break;
- }
- if (nth == 1)
- en += sprintf(en, "^");
- else
- en += sprintf(en, "^%d", nth);
- name_commit(p, xstrdup(newname), 0);
- i++;
- name_first_parent_chain(p);
- }
- }
- } while (i);
-}
-
-static int mark_seen(struct commit *commit, struct commit_list **seen_p)
-{
- if (!commit->object.flags) {
- commit_list_insert(commit, seen_p);
- return 1;
- }
- return 0;
-}
-
-static void join_revs(struct commit_list **list_p,
- struct commit_list **seen_p,
- int num_rev, int extra)
-{
- int all_mask = ((1u << (REV_SHIFT + num_rev)) - 1);
- int all_revs = all_mask & ~((1u << REV_SHIFT) - 1);
-
- while (*list_p) {
- struct commit_list *parents;
- int still_interesting = !!interesting(*list_p);
- struct commit *commit = pop_one_commit(list_p);
- int flags = commit->object.flags & all_mask;
-
- if (!still_interesting && extra <= 0)
- break;
-
- mark_seen(commit, seen_p);
- if ((flags & all_revs) == all_revs)
- flags |= UNINTERESTING;
- parents = commit->parents;
-
- while (parents) {
- struct commit *p = parents->item;
- int this_flag = p->object.flags;
- parents = parents->next;
- if ((this_flag & flags) == flags)
- continue;
- if (!p->object.parsed)
- parse_commit(p);
- if (mark_seen(p, seen_p) && !still_interesting)
- extra--;
- p->object.flags |= flags;
- insert_by_date(p, list_p);
- }
- }
-
- /*
- * Postprocess to complete well-poisoning.
- *
- * At this point we have all the commits we have seen in
- * seen_p list. Mark anything that can be reached from
- * uninteresting commits not interesting.
- */
- for (;;) {
- int changed = 0;
- struct commit_list *s;
- for (s = *seen_p; s; s = s->next) {
- struct commit *c = s->item;
- struct commit_list *parents;
-
- if (((c->object.flags & all_revs) != all_revs) &&
- !(c->object.flags & UNINTERESTING))
- continue;
-
- /* The current commit is either a merge base or
- * already uninteresting one. Mark its parents
- * as uninteresting commits _only_ if they are
- * already parsed. No reason to find new ones
- * here.
- */
- parents = c->parents;
- while (parents) {
- struct commit *p = parents->item;
- parents = parents->next;
- if (!(p->object.flags & UNINTERESTING)) {
- p->object.flags |= UNINTERESTING;
- changed = 1;
- }
- }
- }
- if (!changed)
- break;
- }
-}
-
-static void show_one_commit(struct commit *commit, int no_name)
-{
- struct strbuf pretty = STRBUF_INIT;
- const char *pretty_str = "(unavailable)";
- struct commit_name *name = commit->util;
-
- if (commit->object.parsed) {
- struct pretty_print_context ctx = {0};
- pretty_print_commit(CMIT_FMT_ONELINE, commit, &pretty, &ctx);
- pretty_str = pretty.buf;
- }
- if (!prefixcmp(pretty_str, "[PATCH] "))
- pretty_str += 8;
-
- if (!no_name) {
- if (name && name->head_name) {
- printf("[%s", name->head_name);
- if (name->generation) {
- if (name->generation == 1)
- printf("^");
- else
- printf("~%d", name->generation);
- }
- printf("] ");
- }
- else
- printf("[%s] ",
- find_unique_abbrev(commit->object.sha1, 7));
- }
- puts(pretty_str);
- strbuf_release(&pretty);
-}
-
-static char *ref_name[MAX_REVS + 1];
-static int ref_name_cnt;
-
-static const char *find_digit_prefix(const char *s, int *v)
-{
- const char *p;
- int ver;
- char ch;
-
- for (p = s, ver = 0;
- '0' <= (ch = *p) && ch <= '9';
- p++)
- ver = ver * 10 + ch - '0';
- *v = ver;
- return p;
-}
-
-
-static int version_cmp(const char *a, const char *b)
-{
- while (1) {
- int va, vb;
-
- a = find_digit_prefix(a, &va);
- b = find_digit_prefix(b, &vb);
- if (va != vb)
- return va - vb;
-
- while (1) {
- int ca = *a;
- int cb = *b;
- if ('0' <= ca && ca <= '9')
- ca = 0;
- if ('0' <= cb && cb <= '9')
- cb = 0;
- if (ca != cb)
- return ca - cb;
- if (!ca)
- break;
- a++;
- b++;
- }
- if (!*a && !*b)
- return 0;
- }
-}
-
-static int compare_ref_name(const void *a_, const void *b_)
-{
- const char * const*a = a_, * const*b = b_;
- return version_cmp(*a, *b);
-}
-
-static void sort_ref_range(int bottom, int top)
-{
- qsort(ref_name + bottom, top - bottom, sizeof(ref_name[0]),
- compare_ref_name);
-}
-
-static int append_ref(const char *refname, const unsigned char *sha1,
- int allow_dups)
-{
- struct commit *commit = lookup_commit_reference_gently(sha1, 1);
- int i;
-
- if (!commit)
- return 0;
-
- if (!allow_dups) {
- /* Avoid adding the same thing twice */
- for (i = 0; i < ref_name_cnt; i++)
- if (!strcmp(refname, ref_name[i]))
- return 0;
- }
- if (MAX_REVS <= ref_name_cnt) {
- warning("ignoring %s; cannot handle more than %d refs",
- refname, MAX_REVS);
- return 0;
- }
- ref_name[ref_name_cnt++] = xstrdup(refname);
- ref_name[ref_name_cnt] = NULL;
- return 0;
-}
-
-static int append_head_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
-{
- unsigned char tmp[20];
- int ofs = 11;
- if (prefixcmp(refname, "refs/heads/"))
- return 0;
- /* If both heads/foo and tags/foo exists, get_sha1 would
- * get confused.
- */
- if (get_sha1(refname + ofs, tmp) || hashcmp(tmp, sha1))
- ofs = 5;
- return append_ref(refname + ofs, sha1, 0);
-}
-
-static int append_remote_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
-{
- unsigned char tmp[20];
- int ofs = 13;
- if (prefixcmp(refname, "refs/remotes/"))
- return 0;
- /* If both heads/foo and tags/foo exists, get_sha1 would
- * get confused.
- */
- if (get_sha1(refname + ofs, tmp) || hashcmp(tmp, sha1))
- ofs = 5;
- return append_ref(refname + ofs, sha1, 0);
-}
-
-static int append_tag_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
-{
- if (prefixcmp(refname, "refs/tags/"))
- return 0;
- return append_ref(refname + 5, sha1, 0);
-}
-
-static const char *match_ref_pattern = NULL;
-static int match_ref_slash = 0;
-static int count_slash(const char *s)
-{
- int cnt = 0;
- while (*s)
- if (*s++ == '/')
- cnt++;
- return cnt;
-}
-
-static int append_matching_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
-{
- /* we want to allow pattern hold/<asterisk> to show all
- * branches under refs/heads/hold/, and v0.99.9? to show
- * refs/tags/v0.99.9a and friends.
- */
- const char *tail;
- int slash = count_slash(refname);
- for (tail = refname; *tail && match_ref_slash < slash; )
- if (*tail++ == '/')
- slash--;
- if (!*tail)
- return 0;
- if (fnmatch(match_ref_pattern, tail, 0))
- return 0;
- if (!prefixcmp(refname, "refs/heads/"))
- return append_head_ref(refname, sha1, flag, cb_data);
- if (!prefixcmp(refname, "refs/tags/"))
- return append_tag_ref(refname, sha1, flag, cb_data);
- return append_ref(refname, sha1, 0);
-}
-
-static void snarf_refs(int head, int remotes)
-{
- if (head) {
- int orig_cnt = ref_name_cnt;
- for_each_ref(append_head_ref, NULL);
- sort_ref_range(orig_cnt, ref_name_cnt);
- }
- if (remotes) {
- int orig_cnt = ref_name_cnt;
- for_each_ref(append_remote_ref, NULL);
- sort_ref_range(orig_cnt, ref_name_cnt);
- }
-}
-
-static int rev_is_head(char *head, int headlen, char *name,
- unsigned char *head_sha1, unsigned char *sha1)
-{
- if ((!head[0]) ||
- (head_sha1 && sha1 && hashcmp(head_sha1, sha1)))
- return 0;
- if (!prefixcmp(head, "refs/heads/"))
- head += 11;
- if (!prefixcmp(name, "refs/heads/"))
- name += 11;
- else if (!prefixcmp(name, "heads/"))
- name += 6;
- return !strcmp(head, name);
-}
-
-static int show_merge_base(struct commit_list *seen, int num_rev)
-{
- int all_mask = ((1u << (REV_SHIFT + num_rev)) - 1);
- int all_revs = all_mask & ~((1u << REV_SHIFT) - 1);
- int exit_status = 1;
-
- while (seen) {
- struct commit *commit = pop_one_commit(&seen);
- int flags = commit->object.flags & all_mask;
- if (!(flags & UNINTERESTING) &&
- ((flags & all_revs) == all_revs)) {
- puts(sha1_to_hex(commit->object.sha1));
- exit_status = 0;
- commit->object.flags |= UNINTERESTING;
- }
- }
- return exit_status;
-}
-
-static int show_independent(struct commit **rev,
- int num_rev,
- char **ref_name,
- unsigned int *rev_mask)
-{
- int i;
-
- for (i = 0; i < num_rev; i++) {
- struct commit *commit = rev[i];
- unsigned int flag = rev_mask[i];
-
- if (commit->object.flags == flag)
- puts(sha1_to_hex(commit->object.sha1));
- commit->object.flags |= UNINTERESTING;
- }
- return 0;
-}
-
-static void append_one_rev(const char *av)
-{
- unsigned char revkey[20];
- if (!get_sha1(av, revkey)) {
- append_ref(av, revkey, 0);
- return;
- }
- if (strchr(av, '*') || strchr(av, '?') || strchr(av, '[')) {
- /* glob style match */
- int saved_matches = ref_name_cnt;
- match_ref_pattern = av;
- match_ref_slash = count_slash(av);
- for_each_ref(append_matching_ref, NULL);
- if (saved_matches == ref_name_cnt &&
- ref_name_cnt < MAX_REVS)
- error("no matching refs with %s", av);
- if (saved_matches + 1 < ref_name_cnt)
- sort_ref_range(saved_matches, ref_name_cnt);
- return;
- }
- die("bad sha1 reference %s", av);
-}
-
-static int git_show_branch_config(const char *var, const char *value, void *cb)
-{
- if (!strcmp(var, "showbranch.default")) {
- if (!value)
- return config_error_nonbool(var);
- /*
- * default_arg is now passed to parse_options(), so we need to
- * mimic the real argv a bit better.
- */
- if (!default_num) {
- default_alloc = 20;
- default_arg = xcalloc(default_alloc, sizeof(*default_arg));
- default_arg[default_num++] = "show-branch";
- } else if (default_alloc <= default_num + 1) {
- default_alloc = default_alloc * 3 / 2 + 20;
- default_arg = xrealloc(default_arg, sizeof *default_arg * default_alloc);
- }
- default_arg[default_num++] = xstrdup(value);
- default_arg[default_num] = NULL;
- return 0;
- }
-
- if (!strcmp(var, "color.showbranch")) {
- showbranch_use_color = git_config_colorbool(var, value, -1);
- return 0;
- }
-
- return git_color_default_config(var, value, cb);
-}
-
-static int omit_in_dense(struct commit *commit, struct commit **rev, int n)
-{
- /* If the commit is tip of the named branches, do not
- * omit it.
- * Otherwise, if it is a merge that is reachable from only one
- * tip, it is not that interesting.
- */
- int i, flag, count;
- for (i = 0; i < n; i++)
- if (rev[i] == commit)
- return 0;
- flag = commit->object.flags;
- for (i = count = 0; i < n; i++) {
- if (flag & (1u << (i + REV_SHIFT)))
- count++;
- }
- if (count == 1)
- return 1;
- return 0;
-}
-
-static int reflog = 0;
-
-static int parse_reflog_param(const struct option *opt, const char *arg,
- int unset)
-{
- char *ep;
- const char **base = (const char **)opt->value;
- if (!arg)
- arg = "";
- reflog = strtoul(arg, &ep, 10);
- if (*ep == ',')
- *base = ep + 1;
- else if (*ep)
- return error("unrecognized reflog param '%s'", arg);
- else
- *base = NULL;
- if (reflog <= 0)
- reflog = DEFAULT_REFLOG;
- return 0;
-}
-
-int cmd_show_branch(int ac, const char **av, const char *prefix)
-{
- struct commit *rev[MAX_REVS], *commit;
- char *reflog_msg[MAX_REVS];
- struct commit_list *list = NULL, *seen = NULL;
- unsigned int rev_mask[MAX_REVS];
- int num_rev, i, extra = 0;
- int all_heads = 0, all_remotes = 0;
- int all_mask, all_revs;
- int lifo = 1;
- char head[128];
- const char *head_p;
- int head_len;
- unsigned char head_sha1[20];
- int merge_base = 0;
- int independent = 0;
- int no_name = 0;
- int sha1_name = 0;
- int shown_merge_point = 0;
- int with_current_branch = 0;
- int head_at = -1;
- int topics = 0;
- int dense = 1;
- const char *reflog_base = NULL;
- struct option builtin_show_branch_options[] = {
- OPT_BOOLEAN('a', "all", &all_heads,
- "show remote-tracking and local branches"),
- OPT_BOOLEAN('r', "remotes", &all_remotes,
- "show remote-tracking branches"),
- OPT_BOOLEAN(0, "color", &showbranch_use_color,
- "color '*!+-' corresponding to the branch"),
- { OPTION_INTEGER, 0, "more", &extra, "n",
- "show <n> more commits after the common ancestor",
- PARSE_OPT_OPTARG, NULL, (intptr_t)1 },
- OPT_SET_INT(0, "list", &extra, "synonym to more=-1", -1),
- OPT_BOOLEAN(0, "no-name", &no_name, "suppress naming strings"),
- OPT_BOOLEAN(0, "current", &with_current_branch,
- "include the current branch"),
- OPT_BOOLEAN(0, "sha1-name", &sha1_name,
- "name commits with their object names"),
- OPT_BOOLEAN(0, "merge-base", &merge_base,
- "show possible merge bases"),
- OPT_BOOLEAN(0, "independent", &independent,
- "show refs unreachable from any other ref"),
- OPT_BOOLEAN(0, "topo-order", &lifo,
- "show commits in topological order"),
- OPT_BOOLEAN(0, "topics", &topics,
- "show only commits not on the first branch"),
- OPT_SET_INT(0, "sparse", &dense,
- "show merges reachable from only one tip", 0),
- OPT_SET_INT(0, "date-order", &lifo,
- "show commits where no parent comes before its "
- "children", 0),
- { OPTION_CALLBACK, 'g', "reflog", &reflog_base, "<n>[,<base>]",
- "show <n> most recent ref-log entries starting at "
- "base",
- PARSE_OPT_OPTARG | PARSE_OPT_LITERAL_ARGHELP,
- parse_reflog_param },
- OPT_END()
- };
-
- git_config(git_show_branch_config, NULL);
-
- if (showbranch_use_color == -1)
- showbranch_use_color = git_use_color_default;
-
- /* If nothing is specified, try the default first */
- if (ac == 1 && default_num) {
- ac = default_num;
- av = default_arg;
- }
-
- ac = parse_options(ac, av, prefix, builtin_show_branch_options,
- show_branch_usage, PARSE_OPT_STOP_AT_NON_OPTION);
- if (all_heads)
- all_remotes = 1;
-
- if (extra || reflog) {
- /* "listing" mode is incompatible with
- * independent nor merge-base modes.
- */
- if (independent || merge_base)
- usage_with_options(show_branch_usage,
- builtin_show_branch_options);
- if (reflog && ((0 < extra) || all_heads || all_remotes))
- /*
- * Asking for --more in reflog mode does not
- * make sense. --list is Ok.
- *
- * Also --all and --remotes do not make sense either.
- */
- die("--reflog is incompatible with --all, --remotes, "
- "--independent or --merge-base");
- }
-
- /* If nothing is specified, show all branches by default */
- if (ac + all_heads + all_remotes == 0)
- all_heads = 1;
-
- if (reflog) {
- unsigned char sha1[20];
- char nth_desc[256];
- char *ref;
- int base = 0;
-
- if (ac == 0) {
- static const char *fake_av[2];
- const char *refname;
-
- refname = resolve_ref("HEAD", sha1, 1, NULL);
- fake_av[0] = xstrdup(refname);
- fake_av[1] = NULL;
- av = fake_av;
- ac = 1;
- }
- if (ac != 1)
- die("--reflog option needs one branch name");
-
- if (MAX_REVS < reflog)
- die("Only %d entries can be shown at one time.",
- MAX_REVS);
- if (!dwim_ref(*av, strlen(*av), sha1, &ref))
- die("No such ref %s", *av);
-
- /* Has the base been specified? */
- if (reflog_base) {
- char *ep;
- base = strtoul(reflog_base, &ep, 10);
- if (*ep) {
- /* Ah, that is a date spec... */
- unsigned long at;
- at = approxidate(reflog_base);
- read_ref_at(ref, at, -1, sha1, NULL,
- NULL, NULL, &base);
- }
- }
-
- for (i = 0; i < reflog; i++) {
- char *logmsg, *m;
- const char *msg;
- unsigned long timestamp;
- int tz;
-
- if (read_ref_at(ref, 0, base+i, sha1, &logmsg,
- &timestamp, &tz, NULL)) {
- reflog = i;
- break;
- }
- msg = strchr(logmsg, '\t');
- if (!msg)
- msg = "(none)";
- else
- msg++;
- m = xmalloc(strlen(msg) + 200);
- sprintf(m, "(%s) %s",
- show_date(timestamp, tz, 1),
- msg);
- reflog_msg[i] = m;
- free(logmsg);
- sprintf(nth_desc, "%s@{%d}", *av, base+i);
- append_ref(nth_desc, sha1, 1);
- }
- }
- else if (all_heads + all_remotes)
- snarf_refs(all_heads, all_remotes);
- else {
- while (0 < ac) {
- append_one_rev(*av);
- ac--; av++;
- }
- }
-
- head_p = resolve_ref("HEAD", head_sha1, 1, NULL);
- if (head_p) {
- head_len = strlen(head_p);
- memcpy(head, head_p, head_len + 1);
- }
- else {
- head_len = 0;
- head[0] = 0;
- }
-
- if (with_current_branch && head_p) {
- int has_head = 0;
- for (i = 0; !has_head && i < ref_name_cnt; i++) {
- /* We are only interested in adding the branch
- * HEAD points at.
- */
- if (rev_is_head(head,
- head_len,
- ref_name[i],
- head_sha1, NULL))
- has_head++;
- }
- if (!has_head) {
- int offset = !prefixcmp(head, "refs/heads/") ? 11 : 0;
- append_one_rev(head + offset);
- }
- }
-
- if (!ref_name_cnt) {
- fprintf(stderr, "No revs to be shown.\n");
- exit(0);
- }
-
- for (num_rev = 0; ref_name[num_rev]; num_rev++) {
- unsigned char revkey[20];
- unsigned int flag = 1u << (num_rev + REV_SHIFT);
-
- if (MAX_REVS <= num_rev)
- die("cannot handle more than %d revs.", MAX_REVS);
- if (get_sha1(ref_name[num_rev], revkey))
- die("'%s' is not a valid ref.", ref_name[num_rev]);
- commit = lookup_commit_reference(revkey);
- if (!commit)
- die("cannot find commit %s (%s)",
- ref_name[num_rev], revkey);
- parse_commit(commit);
- mark_seen(commit, &seen);
-
- /* rev#0 uses bit REV_SHIFT, rev#1 uses bit REV_SHIFT+1,
- * and so on. REV_SHIFT bits from bit 0 are used for
- * internal bookkeeping.
- */
- commit->object.flags |= flag;
- if (commit->object.flags == flag)
- insert_by_date(commit, &list);
- rev[num_rev] = commit;
- }
- for (i = 0; i < num_rev; i++)
- rev_mask[i] = rev[i]->object.flags;
-
- if (0 <= extra)
- join_revs(&list, &seen, num_rev, extra);
-
- sort_by_date(&seen);
-
- if (merge_base)
- return show_merge_base(seen, num_rev);
-
- if (independent)
- return show_independent(rev, num_rev, ref_name, rev_mask);
-
- /* Show list; --more=-1 means list-only */
- if (1 < num_rev || extra < 0) {
- for (i = 0; i < num_rev; i++) {
- int j;
- int is_head = rev_is_head(head,
- head_len,
- ref_name[i],
- head_sha1,
- rev[i]->object.sha1);
- if (extra < 0)
- printf("%c [%s] ",
- is_head ? '*' : ' ', ref_name[i]);
- else {
- for (j = 0; j < i; j++)
- putchar(' ');
- printf("%s%c%s [%s] ",
- get_color_code(i % COLUMN_COLORS_MAX),
- is_head ? '*' : '!',
- get_color_reset_code(), ref_name[i]);
- }
-
- if (!reflog) {
- /* header lines never need name */
- show_one_commit(rev[i], 1);
- }
- else
- puts(reflog_msg[i]);
-
- if (is_head)
- head_at = i;
- }
- if (0 <= extra) {
- for (i = 0; i < num_rev; i++)
- putchar('-');
- putchar('\n');
- }
- }
- if (extra < 0)
- exit(0);
-
- /* Sort topologically */
- sort_in_topological_order(&seen, lifo);
-
- /* Give names to commits */
- if (!sha1_name && !no_name)
- name_commits(seen, rev, ref_name, num_rev);
-
- all_mask = ((1u << (REV_SHIFT + num_rev)) - 1);
- all_revs = all_mask & ~((1u << REV_SHIFT) - 1);
-
- while (seen) {
- struct commit *commit = pop_one_commit(&seen);
- int this_flag = commit->object.flags;
- int is_merge_point = ((this_flag & all_revs) == all_revs);
-
- shown_merge_point |= is_merge_point;
-
- if (1 < num_rev) {
- int is_merge = !!(commit->parents &&
- commit->parents->next);
- if (topics &&
- !is_merge_point &&
- (this_flag & (1u << REV_SHIFT)))
- continue;
- if (dense && is_merge &&
- omit_in_dense(commit, rev, num_rev))
- continue;
- for (i = 0; i < num_rev; i++) {
- int mark;
- if (!(this_flag & (1u << (i + REV_SHIFT))))
- mark = ' ';
- else if (is_merge)
- mark = '-';
- else if (i == head_at)
- mark = '*';
- else
- mark = '+';
- printf("%s%c%s",
- get_color_code(i % COLUMN_COLORS_MAX),
- mark, get_color_reset_code());
- }
- putchar(' ');
- }
- show_one_commit(commit, no_name);
-
- if (shown_merge_point && --extra < 0)
- break;
- }
- return 0;
-}