Clean-up output from "git show-branch" and document it.

When showing only one branch a lot of default output becomes redundant,
so clean it up a bit, and document what is shown.  Retire the earlier
implementation "git-show-branches-script".

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2005-08-22 23:16:46 -07:00
parent f76412ed6d
commit f5e375c9a9
6 changed files with 128 additions and 140 deletions

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@ -0,0 +1,107 @@
git-show-branch(1)
==================
v0.99.4, Aug 2005
NAME
----
git-show-branch - Show branches and their commits.
SYNOPSIS
--------
'git show-branch [--all] [--heads] [--tags] [--more=<n>] [--merge-base] <reference>...'
DESCRIPTION
-----------
Shows the head commits from the named <reference> (or all refs under
$GIT_DIR/refs/heads), and displays concise list of commit logs
to show their relationship semi-visually.
OPTIONS
-------
<reference>::
Name of the reference under $GIT_DIR/refs/.
--all --heads --tags::
Show all refs under $GIT_DIR/refs, $GIT_DIR/refs/heads,
and $GIT_DIR/refs/tags, respectively.
--more=<n>::
Usually the command stops output upon showing the commit
that is the common ancestor of all the branches. This
flag tells the command to go <n> commits beyond that.
--merge-base::
Instead of showing the commit list, just act like the
'git-merge-base' command except that it can accept more
than two heads.
OUTPUT
------
Given N <references>, the first N lines are the one-line
description from their commit message. The branch head that is
pointed at by $GIT_DIR/HEAD is prefixed with an asterisk '*'
character while other heads are prefixed with a '!' character.
Following these N lines, one-line log for each commit is
displayed, indented N places. If a commit is on the I-th
branch, the I-th indentation character shows a '+' sign;
otherwise it shows a space. Each commit shows a short name that
can be used as an exended SHA1 to name that commit.
The following example shows three branches, "master", "fixes"
and "mhf":
------------------------------------------------
$ git show-branch master fixes mhf
! [master] Add 'git show-branch'.
! [fixes] Introduce "reset type" flag to "git reset"
! [mhf] Allow "+remote:local" refspec to cause --force when fetching.
---
+ [mhf] Allow "+remote:local" refspec to cause --force when fetching.
+ [mhf~1] Use git-octopus when pulling more than one heads.
+ [fixes] Introduce "reset type" flag to "git reset"
+ [mhf~2] "git fetch --force".
+ [mhf~3] Use .git/remote/origin, not .git/branches/origin.
+ [mhf~4] Make "git pull" and "git fetch" default to origin
+ [mhf~5] Infamous 'octopus merge'
+ [mhf~6] Retire git-parse-remote.
+ [mhf~7] Multi-head fetch.
+ [mhf~8] Start adding the $GIT_DIR/remotes/ support.
+++ [master] Add 'git show-branch'.
------------------------------------------------
These three branches all forked from a common commit, [master],
whose commit message is "Add 'git show-branch'. "fixes" branch
adds one commit 'Introduce "reset type"'. "mhf" branch has many
other commits.
When only one head is given, the output format changes slightly
to conserve space. The '+' sign to show which commit is
reachable from which head and the first N lines to show the list
of heads being displayed are both meaningless so they are
omitted. Also the label given to each commit does not repeat
the name of the branch because it is obvious.
------------------------------------------------
$ git show-branch --more=4 master
[master] Add 'git show-branch'.
[~1] Add a new extended SHA1 syntax <name>~<num>
[~2] Fix "git-diff-script A B"
[~3] git-ls-files: generalized pathspecs
[~4] Make "git-ls-files" work in subdirectories
------------------------------------------------
Author
------
Written by Junio C Hamano <junkio@cox.net>
Documentation
--------------
Documentation by Junio C Hamano.
GIT
---
Part of the link:git.html[git] suite

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@ -1,71 +0,0 @@
git-show-branches-script(1)
===========================
v0.99.4, Aug 2005
NAME
----
git-show-branches-script - Show branches and their commits.
SYNOPSIS
--------
'git show-branches <reference>...'
DESCRIPTION
-----------
Shows the head commits from the named <reference> (or all refs under
$GIT_DIR/refs/heads), and displays concise list of commit logs
to show their relationship semi-visually.
OPTIONS
-------
<reference>::
Name of the reference under $GIT_DIR/refs/heads/.
OUTPUT
------
Given N <references>, the first N lines are the one-line
description from their commit message. The branch head that is
pointed at by $GIT_DIR/HEAD is prefixed with an asterisk '*'
character while other heads are prefixed with a '!' character.
Following these N lines, one-line log for each commit is
displayed, indented N places. If a commit is on the I-th
branch, the I-th indentation character shows a '+' sign;
otherwise it shows a space.
The following example shows three branches, "pu", "master" and
"rc":
------------------------------------------------
* [pu] Add cheap local clone '-s' flag to git-clone-script
! [master] Documentation updates.
! [rc] Merge master into rc
+ Add cheap local clone '-s' flag to git-clone-script
+ Alternate object pool mechanism updates.
+ Audit rev-parse users.
++ Documentation updates.
+ Merge master into rc
+++ [PATCH] plug memory leak in diff.c::diff_free_filepair()
------------------------------------------------
These three branches all forked from a common commit, "[PATCH]
plug memory leak...", and "rc" has one commit ahead of it. The
"master" branch has one different commit that is also shared by
"pu" branch, and "pu" branch has three more commits on top of
"master" branch.
Author
------
Written by Junio C Hamano <junkio@cox.net>
Documentation
--------------
Documentation by Junio C Hamano.
GIT
---
Part of the link:git.html[git] suite

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@ -208,7 +208,7 @@ link:git-pull-script.html[git-pull-script]::
link:git-commit-script.html[git-commit-script]::
Record changes to the repository.
link:git-show-branches-script.html[git-show-branches-script]::
link:git-show-branch.html[git-show-branch]::
Show branches and their commits.
link:git-repack-script.html[git-repack-script]::

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@ -71,7 +71,6 @@ SCRIPTS=git git-apply-patch-script git-merge-one-file-script git-prune-script \
SCRIPTS += git-count-objects-script
# SCRIPTS += git-send-email-script
SCRIPTS += git-revert-script
SCRIPTS += git-show-branches-script
PROG= git-update-cache git-diff-files git-init-db git-write-tree \
git-read-tree git-commit-tree git-cat-file git-fsck-cache \

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@ -1,61 +0,0 @@
#!/bin/sh
#
# Show refs and their recent commits.
#
. git-sh-setup-script || die "Not a git repository"
usage () {
die "usage: $0 <ref>..."
}
headref=`readlink $GIT_DIR/HEAD`
case "$(git-rev-parse --no-revs)" in '') ;; *) usage ;; esac
revs=$(git-rev-parse --revs-only --symbolic --no-flags "$@")
flags=$(git-rev-parse --revs-only --flags "$@")
case "$revs" in
'')
revs=$(git-rev-parse --symbolic --all | sed -ne 's|^refs/heads/||p' |
sort)
shift ;;
esac
set x $revs
shift
hh= in=
for ref
do
case "/$headref" in
*/"$ref") H='*' ;;
*) H='!' ;;
esac
h=`git-rev-parse --verify "$ref^0" 2>/dev/null` || continue
l=`git-log-script --max-count=1 --pretty=oneline "$h" |
sed -e 's/^[^ ]* //'`
hh="$hh $h"
echo "$in$H [$ref] $l"
in="$in "
done
set x $hh
shift
git-rev-list --pretty=oneline $flags $@ |
while read v l
do
in=''
for h
do
b=`git-merge-base $h $v`
case "$b" in
$v) in="$in+" ;;
*) in="$in " ;;
esac
done
echo "$in $l"
case "$in" in
*' '*) ;;
*) break ;;
esac
done

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@ -223,6 +223,7 @@ int main(int ac, char **av)
int head_path_len;
unsigned char head_sha1[20];
int merge_base = 0;
char **label;
while (1 < ac && av[1][0] == '-') {
char *arg = av[1];
@ -297,7 +298,8 @@ int main(int ac, char **av)
if (merge_base)
return show_merge_base(seen, num_rev);
if (1 < num_rev)
/* Show list */
if (1 < num_rev) {
for (i = 0; i < num_rev; i++) {
int j;
int is_head = rev_is_head(head_path,
@ -310,16 +312,28 @@ int main(int ac, char **av)
printf("%c [%s] ", is_head ? '*' : '!', ref_name[i]);
show_one_commit(rev[i], NULL);
}
for (i = 0; i < num_rev; i++)
putchar('-');
putchar('\n');
}
label = ref_name;
while (seen) {
struct commit *commit = pop_one_commit(&seen);
int this_flag = commit->object.flags;
static char *obvious[] = { "" };
if ((this_flag & UNINTERESTING) && (--extra < 0))
break;
for (i = 0; i < num_rev; i++)
putchar((this_flag & (1u << (i + REV_SHIFT)))
? '+' : ' ');
putchar(' ');
show_one_commit(commit, ref_name);
if (1 < num_rev) {
for (i = 0; i < num_rev; i++)
putchar((this_flag & (1u << (i + REV_SHIFT)))
? '+' : ' ');
putchar(' ');
}
show_one_commit(commit, label);
if (num_rev == 1)
label = obvious;
}
return 0;
}