From 209d336ae3923f2c1783a42b12fca50f3bee0802 Mon Sep 17 00:00:00 2001 From: Jay Soffian Date: Fri, 13 Feb 2009 04:40:18 -0500 Subject: builtin-branch: improve output when displaying remote branches When encountering a symref (typically refs/remotes//HEAD), display the ref target. When displaying local and remote branches, prefix the remote branch names with "remotes/" to make the remote branches clear from the local branches. If displaying only the remote branches, the prefix is not shown since it would be redundant. Sample output: $ git branch foo -> master * master rather-long-branch-name $ git branch -v foo -> master * master 51cecb2 initial rather-long-branch-name 51cecb2 initial $ git branch -v --no-abbrev foo -> master * master 51cecb2dbb1a1902bb4df79b543c8f951ee59d83 initial rather-long-branch-name 51cecb2dbb1a1902bb4df79b543c8f951ee59d83 initial $ git branch -r frotz/HEAD -> frotz/master frotz/master origin/HEAD -> origin/master origin/UNUSUAL -> refs/heads/master origin/master $ git branch -a foo -> master * master rather-long-branch-name remotes/frotz/HEAD -> frotz/master remotes/frotz/master remotes/origin/HEAD -> origin/master remotes/origin/UNUSUAL -> refs/heads/master remotes/origin/master $ git branch -rv frotz/HEAD -> frotz/master frotz/master e1d8130 added file2 origin/HEAD -> origin/master origin/UNUSUAL -> refs/heads/master origin/master e1d8130 added file2 $ git branch -av foo -> master * master 51cecb2 initial rather-long-branch-name 51cecb2 initial remotes/frotz/HEAD -> frotz/master remotes/frotz/master e1d8130 added file2 remotes/origin/HEAD -> origin/master remotes/origin/UNUSUAL -> refs/heads/master remotes/origin/master e1d8130 added file2 Signed-off-by: Jay Soffian Signed-off-by: Junio C Hamano --- builtin-branch.c | 105 +++++++++++++++++++++++++++++++++++++++---------------- 1 file changed, 75 insertions(+), 30 deletions(-) (limited to 'builtin-branch.c') diff --git a/builtin-branch.c b/builtin-branch.c index 56a1971d69..7607f6ab9c 100644 --- a/builtin-branch.c +++ b/builtin-branch.c @@ -181,7 +181,8 @@ static int delete_branches(int argc, const char **argv, int force, int kinds) struct ref_item { char *name; - unsigned int kind; + char *dest; + unsigned int kind, len; struct commit *commit; }; @@ -193,22 +194,47 @@ struct ref_list { int kinds; }; +static char *resolve_symref(const char *src, const char *prefix) +{ + unsigned char sha1[20]; + int flag; + const char *dst, *cp; + + dst = resolve_ref(src, sha1, 0, &flag); + if (!(dst && (flag & REF_ISSYMREF))) + return NULL; + if (prefix && (cp = skip_prefix(dst, prefix))) + dst = cp; + return xstrdup(dst); +} + static int append_ref(const char *refname, const unsigned char *sha1, int flags, void *cb_data) { struct ref_list *ref_list = (struct ref_list*)(cb_data); struct ref_item *newitem; struct commit *commit; - int kind; - int len; + int kind, i; + const char *prefix, *orig_refname = refname; + + static struct { + int kind; + const char *prefix; + int pfxlen; + } ref_kind[] = { + { REF_LOCAL_BRANCH, "refs/heads/", 11 }, + { REF_REMOTE_BRANCH, "refs/remotes/", 13 }, + }; /* Detect kind */ - if (!prefixcmp(refname, "refs/heads/")) { - kind = REF_LOCAL_BRANCH; - refname += 11; - } else if (!prefixcmp(refname, "refs/remotes/")) { - kind = REF_REMOTE_BRANCH; - refname += 13; - } else + for (i = 0; i < ARRAY_SIZE(ref_kind); i++) { + prefix = ref_kind[i].prefix; + if (strncmp(refname, prefix, ref_kind[i].pfxlen)) + continue; + kind = ref_kind[i].kind; + refname += ref_kind[i].pfxlen; + break; + } + if (ARRAY_SIZE(ref_kind) <= i) return 0; commit = lookup_commit_reference_gently(sha1, 1); @@ -239,9 +265,14 @@ static int append_ref(const char *refname, const unsigned char *sha1, int flags, newitem->name = xstrdup(refname); newitem->kind = kind; newitem->commit = commit; - len = strlen(newitem->name); - if (len > ref_list->maxwidth) - ref_list->maxwidth = len; + newitem->len = strlen(refname); + newitem->dest = resolve_symref(orig_refname, prefix); + /* adjust for "remotes/" */ + if (newitem->kind == REF_REMOTE_BRANCH && + ref_list->kinds != REF_REMOTE_BRANCH) + newitem->len += 8; + if (newitem->len > ref_list->maxwidth) + ref_list->maxwidth = newitem->len; return 0; } @@ -250,8 +281,10 @@ static void free_ref_list(struct ref_list *ref_list) { int i; - for (i = 0; i < ref_list->index; i++) + for (i = 0; i < ref_list->index; i++) { free(ref_list->list[i].name); + free(ref_list->list[i].dest); + } free(ref_list->list); } @@ -292,11 +325,12 @@ static int matches_merge_filter(struct commit *commit) } static void print_ref_item(struct ref_item *item, int maxwidth, int verbose, - int abbrev, int current) + int abbrev, int current, char *prefix) { char c; int color; struct commit *commit = item->commit; + struct strbuf out = STRBUF_INIT, name = STRBUF_INIT; if (!matches_merge_filter(commit)) return; @@ -319,7 +353,18 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose, color = COLOR_BRANCH_CURRENT; } - if (verbose) { + strbuf_addf(&name, "%s%s", prefix, item->name); + if (verbose) + strbuf_addf(&out, "%c %s%-*s%s", c, branch_get_color(color), + maxwidth, name.buf, + branch_get_color(COLOR_BRANCH_RESET)); + else + strbuf_addf(&out, "%c %s%s%s", c, branch_get_color(color), + name.buf, branch_get_color(COLOR_BRANCH_RESET)); + + if (item->dest) + strbuf_addf(&out, " -> %s", item->dest); + else if (verbose) { struct strbuf subject = STRBUF_INIT, stat = STRBUF_INIT; const char *sub = " **** invalid ref ****"; @@ -333,28 +378,25 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose, if (item->kind == REF_LOCAL_BRANCH) fill_tracking_info(&stat, item->name); - printf("%c %s%-*s%s %s %s%s\n", c, branch_get_color(color), - maxwidth, item->name, - branch_get_color(COLOR_BRANCH_RESET), - find_unique_abbrev(item->commit->object.sha1, abbrev), - stat.buf, sub); + strbuf_addf(&out, " %s %s%s", + find_unique_abbrev(item->commit->object.sha1, abbrev), + stat.buf, sub); strbuf_release(&stat); strbuf_release(&subject); - } else { - printf("%c %s%s%s\n", c, branch_get_color(color), item->name, - branch_get_color(COLOR_BRANCH_RESET)); } + printf("%s\n", out.buf); + strbuf_release(&name); + strbuf_release(&out); } static int calc_maxwidth(struct ref_list *refs) { - int i, l, w = 0; + int i, w = 0; for (i = 0; i < refs->index; i++) { if (!matches_merge_filter(refs->list[i].commit)) continue; - l = strlen(refs->list[i].name); - if (l > w) - w = l; + if (refs->list[i].len > w) + w = refs->list[i].len; } return w; } @@ -394,7 +436,7 @@ static void print_ref_list(int kinds, int detached, int verbose, int abbrev, str item.commit = head_commit; if (strlen(item.name) > ref_list.maxwidth) ref_list.maxwidth = strlen(item.name); - print_ref_item(&item, ref_list.maxwidth, verbose, abbrev, 1); + print_ref_item(&item, ref_list.maxwidth, verbose, abbrev, 1, ""); free(item.name); } @@ -402,8 +444,11 @@ static void print_ref_list(int kinds, int detached, int verbose, int abbrev, str int current = !detached && (ref_list.list[i].kind == REF_LOCAL_BRANCH) && !strcmp(ref_list.list[i].name, head); + char *prefix = (kinds != REF_REMOTE_BRANCH && + ref_list.list[i].kind == REF_REMOTE_BRANCH) + ? "remotes/" : ""; print_ref_item(&ref_list.list[i], ref_list.maxwidth, verbose, - abbrev, current); + abbrev, current, prefix); } free_ref_list(&ref_list); -- cgit v1.2.3 From 45e2b6140147d7a8b2cd68399e4d52d5d8d7b5be Mon Sep 17 00:00:00 2001 From: Johannes Schindelin Date: Wed, 18 Feb 2009 19:14:59 +0100 Subject: Avoid segfault with 'git branch' when the HEAD is detached A recent addition to the ref_item struct was not taken care of, leading to a segmentation fault when accessing the (uninitialized) "dest" member. Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin-branch.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'builtin-branch.c') diff --git a/builtin-branch.c b/builtin-branch.c index 7607f6ab9c..6106a1abd5 100644 --- a/builtin-branch.c +++ b/builtin-branch.c @@ -432,7 +432,9 @@ static void print_ref_list(int kinds, int detached, int verbose, int abbrev, str is_descendant_of(head_commit, with_commit)) { struct ref_item item; item.name = xstrdup("(no branch)"); + item.len = strlen(item.name); item.kind = REF_LOCAL_BRANCH; + item.dest = NULL; item.commit = head_commit; if (strlen(item.name) > ref_list.maxwidth) ref_list.maxwidth = strlen(item.name); -- cgit v1.2.3 From 66648ad7fed840adef0343a1e0bf5188d32f5569 Mon Sep 17 00:00:00 2001 From: Jeff King Date: Wed, 18 Feb 2009 22:35:45 -0500 Subject: branch: clean up repeated strlen Commit 45e2b61 fixed the initialization of a "len" struct parameter via strlen. We can use that to clean up what is now 3 strlens in a 6-line sequence. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- builtin-branch.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'builtin-branch.c') diff --git a/builtin-branch.c b/builtin-branch.c index 6106a1abd5..b15d3517f3 100644 --- a/builtin-branch.c +++ b/builtin-branch.c @@ -436,8 +436,8 @@ static void print_ref_list(int kinds, int detached, int verbose, int abbrev, str item.kind = REF_LOCAL_BRANCH; item.dest = NULL; item.commit = head_commit; - if (strlen(item.name) > ref_list.maxwidth) - ref_list.maxwidth = strlen(item.name); + if (item.len > ref_list.maxwidth) + ref_list.maxwidth = item.len; print_ref_item(&item, ref_list.maxwidth, verbose, abbrev, 1, ""); free(item.name); } -- cgit v1.2.3