зеркало из https://github.com/microsoft/git.git
show-branch --reflog: show the reflog message at the top.
This changes the output so the list at the top shows the reflog
message, along with their relative timestamps.
You can use --reflog=<n> to show <n> most recent log entries, or
use --reflog=<n>,<b> to show <n> entries going back from the
entry <b>. <b> can be either a number (so --reflog=4,20 shows 4
records starting from @{20}) or a timestamp (e.g. --reflog='4,1 day').
Here is a sample output (with --list option):
$ git show-branch --reflog=10 --list jc/show-reflog
[jc/show-reflog@{0}] (3 minutes ago) commit (amend): show-branch --ref
[jc/show-reflog@{1}] (5 minutes ago) reset HEAD^
[jc/show-reflog@{2}] (14 minutes ago) commit: show-branch --reflog: sho
[jc/show-reflog@{3}] (14 minutes ago) commit: show-branch --reflog: sho
[jc/show-reflog@{4}] (18 minutes ago) commit (amend): Extend read_ref_a
[jc/show-reflog@{5}] (18 minutes ago) commit (amend): Extend read_ref_a
[jc/show-reflog@{6}] (18 minutes ago) commit (amend): Extend read_ref_a
[jc/show-reflog@{7}] (18 minutes ago) am: read_ref_at(): allow retrievi
[jc/show-reflog@{8}] (18 minutes ago) reset --hard HEAD~4
[jc/show-reflog@{9}] (61 minutes ago) commit: show-branch --reflog: use
This shows what I did more cleanly:
$ git show-branch --reflog=10 jc/show-reflog
! [jc/show-reflog@{0}] (3 minutes ago) commit (amend): show-branch --ref
! [jc/show-reflog@{1}] (5 minutes ago) reset HEAD^
! [jc/show-reflog@{2}] (14 minutes ago) commit: show-branch --reflog:
! [jc/show-reflog@{3}] (14 minutes ago) commit: show-branch --reflog:
! [jc/show-reflog@{4}] (18 minutes ago) commit (amend): Extend read_
! [jc/show-reflog@{5}] (18 minutes ago) commit (amend): Extend read
! [jc/show-reflog@{6}] (18 minutes ago) commit (amend): Extend rea
! [jc/show-reflog@{7}] (18 minutes ago) am: read_ref_at(): allow
! [jc/show-reflog@{8}] (18 minutes ago) reset --hard HEAD~4
! [jc/show-reflog@{9}] (61 minutes ago) commit: show-branch --r
----------
+ [jc/show-reflog@{0}] show-branch --reflog: show the reflog
+ [jc/show-reflog@{2}] show-branch --reflog: show the reflog
+++ [jc/show-reflog@{1}] show-branch --reflog: show the reflog
+++++ [jc/show-reflog@{4}] Extend read_ref_at() to be usable fro
+ [jc/show-reflog@{5}] Extend read_ref_at() to be usable fro
+ [jc/show-reflog@{6}] Extend read_ref_at() to be usable fro
+ [jc/show-reflog@{7}] read_ref_at(): allow retrieving the r
+ [jc/show-reflog@{9}] show-branch --reflog: use updated rea
+ [jc/show-reflog@{9}^] read_ref_at(): allow reporting the c
+ [jc/show-reflog@{9}~2] show-branch --reflog: show the refl
+ [jc/show-reflog@{9}~3] read_ref_at(): allow retrieving the
++++++++++ [jc/show-reflog@{8}] dwim_ref(): Separate name-to-ref DWIM
At @{9}, I had a commit to complete 5 patch series, but I wanted
to consolidate two commits that enhances read_ref_at() into one
(they were @{9}^ and @{9}~3), and another two that touch show-branch
into one (@{9} and @{9}~2).
I first saved them with "format-patch -4", and then did a reset
at @{8}. At @{7}, I applied one of them with "am", and then
used "git-apply" on the other one, and amended the commit at
@{6} (so @{6} and @{7} has the same parent). I did not like the
log message, so I amended again at @{5}.
Then I cherry-picked @{9}~2 to create @{3} (the log message
shows that it needs to learn to set GIT_REFLOG_ACTION -- it uses
"git-commit" and the log entry is attributed for it). Another
cherry-pick built @{2} out of @{9}, but what I wanted to do was
to squash these two into one, so I did a "reset HEAD^" at @{1}
and then made the final commit by amending what was at the top.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano
Родитель
16d7cc90dd
Коммит
76a44c5c0b
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@ -11,7 +11,7 @@ SYNOPSIS
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'git-show-branch' [--all] [--remotes] [--topo-order] [--current]
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[--more=<n> | --list | --independent | --merge-base]
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[--no-name | --sha1-name] [--topics] [<rev> | <glob>]...
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'git-show-branch' --reflog[=<n>] <ref>
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'git-show-branch' --reflog[=<n>[,<base>]] [--list] <ref>
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DESCRIPTION
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-----------
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@ -97,8 +97,10 @@ OPTIONS
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will show the revisions given by "git rev-list {caret}master
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topic1 topic2"
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--reflog[=<n>] <ref>::
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Shows <n> most recent ref-log entries for the given ref.
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--reflog[=<n>[,<base>]] <ref>::
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Shows <n> most recent ref-log entries for the given
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ref. If <base> is given, <n> entries going back from
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that entry. <base> can be specified as count or date
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Note that --more, --list, --independent and --merge-base options
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@ -165,6 +167,13 @@ With this, `git show-branch` without extra parameters would show
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only the primary branches. In addition, if you happen to be on
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your topic branch, it is shown as well.
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------------
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$ git show-branch --reflog='10,1 hour ago' --list master
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------------
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shows 10 reflog entries going back from the tip as of 1 hour ago.
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Without `--list`, the output also shows how these tips are
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topologically related with each other.
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Author
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@ -346,18 +346,21 @@ static void sort_ref_range(int bottom, int top)
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compare_ref_name);
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}
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static int append_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
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static int append_ref(const char *refname, const unsigned char *sha1,
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int allow_dups)
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{
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struct commit *commit = lookup_commit_reference_gently(sha1, 1);
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int i;
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if (!commit)
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return 0;
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if (!allow_dups) {
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/* Avoid adding the same thing twice */
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for (i = 0; i < ref_name_cnt; i++)
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if (!strcmp(refname, ref_name[i]))
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return 0;
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}
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if (MAX_REVS <= ref_name_cnt) {
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fprintf(stderr, "warning: ignoring %s; "
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"cannot handle more than %d refs\n",
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@ -380,7 +383,7 @@ static int append_head_ref(const char *refname, const unsigned char *sha1, int f
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*/
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if (get_sha1(refname + ofs, tmp) || hashcmp(tmp, sha1))
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ofs = 5;
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return append_ref(refname + ofs, sha1, flag, cb_data);
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return append_ref(refname + ofs, sha1, 0);
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}
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static int append_remote_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
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@ -394,14 +397,14 @@ static int append_remote_ref(const char *refname, const unsigned char *sha1, int
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*/
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if (get_sha1(refname + ofs, tmp) || hashcmp(tmp, sha1))
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ofs = 5;
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return append_ref(refname + ofs, sha1, flag, cb_data);
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return append_ref(refname + ofs, sha1, 0);
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}
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static int append_tag_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
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{
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if (strncmp(refname, "refs/tags/", 10))
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return 0;
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return append_ref(refname + 5, sha1, flag, cb_data);
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return append_ref(refname + 5, sha1, 0);
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}
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static const char *match_ref_pattern = NULL;
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@ -434,7 +437,7 @@ static int append_matching_ref(const char *refname, const unsigned char *sha1, i
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return append_head_ref(refname, sha1, flag, cb_data);
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if (!strncmp("refs/tags/", refname, 10))
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return append_tag_ref(refname, sha1, flag, cb_data);
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return append_ref(refname, sha1, flag, cb_data);
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return append_ref(refname, sha1, 0);
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}
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static void snarf_refs(int head, int remotes)
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@ -507,7 +510,7 @@ static void append_one_rev(const char *av)
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{
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unsigned char revkey[20];
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if (!get_sha1(av, revkey)) {
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append_ref(av, revkey, 0, NULL);
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append_ref(av, revkey, 0);
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return;
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}
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if (strchr(av, '*') || strchr(av, '?') || strchr(av, '[')) {
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@ -562,9 +565,24 @@ static int omit_in_dense(struct commit *commit, struct commit **rev, int n)
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return 0;
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}
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static void parse_reflog_param(const char *arg, int *cnt, const char **base)
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{
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char *ep;
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*cnt = strtoul(arg, &ep, 10);
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if (*ep == ',')
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*base = ep + 1;
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else if (*ep)
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die("unrecognized reflog param '%s'", arg + 9);
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else
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*base = NULL;
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if (*cnt <= 0)
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*cnt = DEFAULT_REFLOG;
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}
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int cmd_show_branch(int ac, const char **av, const char *prefix)
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{
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struct commit *rev[MAX_REVS], *commit;
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char *reflog_msg[MAX_REVS];
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struct commit_list *list = NULL, *seen = NULL;
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unsigned int rev_mask[MAX_REVS];
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int num_rev, i, extra = 0;
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@ -585,6 +603,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
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int topics = 0;
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int dense = 1;
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int reflog = 0;
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const char *reflog_base = NULL;
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git_config(git_show_branch_config);
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@ -631,21 +650,27 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
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else if (!strcmp(arg, "--reflog")) {
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reflog = DEFAULT_REFLOG;
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}
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else if (!strncmp(arg, "--reflog=", 9)) {
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char *end;
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reflog = strtoul(arg + 9, &end, 10);
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if (*end != '\0')
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die("unrecognized reflog count '%s'", arg + 9);
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}
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else if (!strncmp(arg, "--reflog=", 9))
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parse_reflog_param(arg + 9, &reflog, &reflog_base);
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else
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usage(show_branch_usage);
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ac--; av++;
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}
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ac--; av++;
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/* Only one of these is allowed */
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if (1 < independent + merge_base + (extra != 0) + (!!reflog))
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if (!!extra || !!reflog) {
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/* "listing" mode is incompatible with
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* independent nor merge-base modes.
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*/
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if (independent || merge_base)
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usage(show_branch_usage);
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if (!!reflog && (0 < extra))
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/*
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* Asking for --more in reflog mode does not
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* make sense.
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*/
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usage(show_branch_usage);
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}
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/* If nothing is specified, show all branches by default */
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if (ac + all_heads + all_remotes == 0)
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@ -654,14 +679,51 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
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if (all_heads + all_remotes)
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snarf_refs(all_heads, all_remotes);
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if (reflog) {
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int reflen;
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if (!ac)
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unsigned char sha1[20];
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char nth_desc[256];
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char *ref;
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int base = 0;
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if (ac != 1)
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die("--reflog option needs one branch name");
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reflen = strlen(*av);
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if (!dwim_ref(*av, strlen(*av), sha1, &ref))
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die("No such ref %s", *av);
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/* Has the base been specified? */
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if (reflog_base) {
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char *ep;
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base = strtoul(reflog_base, &ep, 10);
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if (*ep) {
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/* Ah, that is a date spec... */
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unsigned long at;
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at = approxidate(reflog_base);
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read_ref_at(ref, at, -1, sha1, NULL,
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NULL, NULL, &base);
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}
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}
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for (i = 0; i < reflog; i++) {
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char *name = xmalloc(reflen + 20);
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sprintf(name, "%s@{%d}", *av, i);
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append_one_rev(name);
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char *logmsg, *msg, *m;
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unsigned long timestamp;
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int tz;
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if (read_ref_at(ref, 0, base+i, sha1, &logmsg,
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×tamp, &tz, NULL)) {
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reflog = i;
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break;
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}
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msg = strchr(logmsg, '\t');
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if (!msg)
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msg = "(none)";
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else
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msg++;
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m = xmalloc(strlen(msg) + 200);
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sprintf(m, "(%s) %s",
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show_date(timestamp, 0, 1),
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msg);
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reflog_msg[i] = m;
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free(logmsg);
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sprintf(nth_desc, "%s@{%d}", *av, base+i);
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append_ref(nth_desc, sha1, 1);
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}
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}
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else {
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@ -760,8 +822,14 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
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printf("%c [%s] ",
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is_head ? '*' : '!', ref_name[i]);
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}
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if (!reflog) {
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/* header lines never need name */
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show_one_commit(rev[i], 1);
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}
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else
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puts(reflog_msg[i]);
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if (is_head)
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head_at = i;
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}
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5
refs.c
5
refs.c
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@ -1068,6 +1068,7 @@ int read_ref_at(const char *ref, unsigned long at_time, int cnt, unsigned char *
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die("Log %s is corrupt.", logfile);
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date = strtoul(lastgt + 1, &tz_c, 10);
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if (date <= at_time || cnt == 0) {
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tz = strtoul(tz_c, NULL, 10);
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if (msg)
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*msg = ref_msg(rec, logend);
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if (cutoff_time)
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@ -1075,14 +1076,13 @@ int read_ref_at(const char *ref, unsigned long at_time, int cnt, unsigned char *
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if (cutoff_tz)
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*cutoff_tz = tz;
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if (cutoff_cnt)
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*cutoff_cnt = reccnt;
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*cutoff_cnt = reccnt - 1;
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if (lastrec) {
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if (get_sha1_hex(lastrec, logged_sha1))
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die("Log %s is corrupt.", logfile);
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if (get_sha1_hex(rec + 41, sha1))
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die("Log %s is corrupt.", logfile);
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if (hashcmp(logged_sha1, sha1)) {
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tz = strtoul(tz_c, NULL, 10);
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fprintf(stderr,
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"warning: Log %s has gap after %s.\n",
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logfile, show_rfc2822_date(date, tz));
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@ -1096,7 +1096,6 @@ int read_ref_at(const char *ref, unsigned long at_time, int cnt, unsigned char *
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if (get_sha1_hex(rec + 41, logged_sha1))
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die("Log %s is corrupt.", logfile);
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if (hashcmp(logged_sha1, sha1)) {
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tz = strtoul(tz_c, NULL, 10);
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fprintf(stderr,
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"warning: Log %s unexpectedly ended on %s.\n",
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logfile, show_rfc2822_date(date, tz));
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