aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--Documentation/rev-list-options.txt9
-rw-r--r--builtin/rev-list.c16
-rwxr-xr-xcontrib/completion/git-completion.bash144
-rw-r--r--revision.c2
-rw-r--r--revision.h5
-rwxr-xr-xt/t6007-rev-list-cherry-pick-file.sh29
6 files changed, 204 insertions, 1 deletions
diff --git a/Documentation/rev-list-options.txt b/Documentation/rev-list-options.txt
index 73569c073..cc562a057 100644
--- a/Documentation/rev-list-options.txt
+++ b/Documentation/rev-list-options.txt
@@ -98,6 +98,15 @@ you would get an output like this:
This implies the '--topo-order' option by default, but the
'--date-order' option may also be specified.
+ifdef::git-rev-list[]
+--count::
+ Print a number stating how many commits would have been
+ listed, and suppress all other output. When used together
+ with '--left-right', instead print the counts for left and
+ right commits, separated by a tab.
+endif::git-rev-list[]
+
+
ifndef::git-rev-list[]
Diff Formatting
~~~~~~~~~~~~~~~
diff --git a/builtin/rev-list.c b/builtin/rev-list.c
index 51ceb19d8..efe9360e2 100644
--- a/builtin/rev-list.c
+++ b/builtin/rev-list.c
@@ -50,6 +50,15 @@ static void show_commit(struct commit *commit, void *data)
graph_show_commit(revs->graph);
+ if (revs->count) {
+ if (commit->object.flags & SYMMETRIC_LEFT)
+ revs->count_left++;
+ else
+ revs->count_right++;
+ finish_commit(commit, data);
+ return;
+ }
+
if (info->show_timestamp)
printf("%lu ", commit->date);
if (info->header_prefix)
@@ -400,5 +409,12 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
quiet ? finish_object : show_object,
&info);
+ if (revs.count) {
+ if (revs.left_right)
+ printf("%d\t%d\n", revs.count_left, revs.count_right);
+ else
+ printf("%d\n", revs.count_left + revs.count_right);
+ }
+
return 0;
}
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index bc9df12bf..67569901e 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -42,6 +42,24 @@
# set GIT_PS1_SHOWUNTRACKEDFILES to a nonempty value. If there're
# untracked files, then a '%' will be shown next to the branch name.
#
+# If you would like to see the difference between HEAD and its
+# upstream, set GIT_PS1_SHOWUPSTREAM="auto". A "<" indicates
+# you are behind, ">" indicates you are ahead, and "<>"
+# indicates you have diverged. You can further control
+# behaviour by setting GIT_PS1_SHOWUPSTREAM to a space-separated
+# list of values:
+# verbose show number of commits ahead/behind (+/-) upstream
+# legacy don't use the '--count' option available in recent
+# versions of git-rev-list
+# git always compare HEAD to @{upstream}
+# svn always compare HEAD to your SVN upstream
+# By default, __git_ps1 will compare HEAD to your SVN upstream
+# if it can find one, or @{upstream} otherwise. Once you have
+# set GIT_PS1_SHOWUPSTREAM, you can override it on a
+# per-repository basis by setting the bash.showUpstream config
+# variable.
+#
+#
# To submit patches:
#
# *) Read Documentation/SubmittingPatches
@@ -78,6 +96,125 @@ __gitdir ()
fi
}
+# stores the divergence from upstream in $p
+# used by GIT_PS1_SHOWUPSTREAM
+__git_ps1_show_upstream ()
+{
+ local key value
+ local svn_remote=() svn_url_pattern count n
+ local upstream=git legacy="" verbose=""
+
+ # get some config options from git-config
+ while read key value; do
+ case "$key" in
+ bash.showupstream)
+ GIT_PS1_SHOWUPSTREAM="$value"
+ if [[ -z "${GIT_PS1_SHOWUPSTREAM}" ]]; then
+ p=""
+ return
+ fi
+ ;;
+ svn-remote.*.url)
+ svn_remote[ $((${#svn_remote[@]} + 1)) ]="$value"
+ svn_url_pattern+="\\|$value"
+ upstream=svn+git # default upstream is SVN if available, else git
+ ;;
+ esac
+ done < <(git config -z --get-regexp '^(svn-remote\..*\.url|bash\.showupstream)$' 2>/dev/null | tr '\0\n' '\n ')
+
+ # parse configuration values
+ for option in ${GIT_PS1_SHOWUPSTREAM}; do
+ case "$option" in
+ git|svn) upstream="$option" ;;
+ verbose) verbose=1 ;;
+ legacy) legacy=1 ;;
+ esac
+ done
+
+ # Find our upstream
+ case "$upstream" in
+ git) upstream="@{upstream}" ;;
+ svn*)
+ # get the upstream from the "git-svn-id: ..." in a commit message
+ # (git-svn uses essentially the same procedure internally)
+ local svn_upstream=($(git log --first-parent -1 \
+ --grep="^git-svn-id: \(${svn_url_pattern:2}\)" 2>/dev/null))
+ if [[ 0 -ne ${#svn_upstream[@]} ]]; then
+ svn_upstream=${svn_upstream[ ${#svn_upstream[@]} - 2 ]}
+ svn_upstream=${svn_upstream%@*}
+ for ((n=1; "$n" <= "${#svn_remote[@]}"; ++n)); do
+ svn_upstream=${svn_upstream#${svn_remote[$n]}}
+ done
+
+ if [[ -z "$svn_upstream" ]]; then
+ # default branch name for checkouts with no layout:
+ upstream=${GIT_SVN_ID:-git-svn}
+ else
+ upstream=${svn_upstream#/}
+ fi
+ elif [[ "svn+git" = "$upstream" ]]; then
+ upstream="@{upstream}"
+ fi
+ ;;
+ esac
+
+ # Find how many commits we are ahead/behind our upstream
+ if [[ -z "$legacy" ]]; then
+ count="$(git rev-list --count --left-right \
+ "$upstream"...HEAD 2>/dev/null)"
+ else
+ # produce equivalent output to --count for older versions of git
+ local commits
+ if commits="$(git rev-list --left-right "$upstream"...HEAD 2>/dev/null)"
+ then
+ local commit behind=0 ahead=0
+ for commit in $commits
+ do
+ case "$commit" in
+ "<"*) let ++behind
+ ;;
+ *) let ++ahead
+ ;;
+ esac
+ done
+ count="$behind $ahead"
+ else
+ count=""
+ fi
+ fi
+
+ # calculate the result
+ if [[ -z "$verbose" ]]; then
+ case "$count" in
+ "") # no upstream
+ p="" ;;
+ "0 0") # equal to upstream
+ p="=" ;;
+ "0 "*) # ahead of upstream
+ p=">" ;;
+ *" 0") # behind upstream
+ p="<" ;;
+ *) # diverged from upstream
+ p="<>" ;;
+ esac
+ else
+ case "$count" in
+ "") # no upstream
+ p="" ;;
+ "0 0") # equal to upstream
+ p=" u=" ;;
+ "0 "*) # ahead of upstream
+ p=" u+${count#0 }" ;;
+ *" 0") # behind upstream
+ p=" u-${count% 0}" ;;
+ *) # diverged from upstream
+ p=" u+${count#* }-${count% *}" ;;
+ esac
+ fi
+
+}
+
+
# __git_ps1 accepts 0 or 1 arguments (i.e., format string)
# returns text to add to bash PS1 prompt (includes branch name)
__git_ps1 ()
@@ -132,6 +269,7 @@ __git_ps1 ()
local s=""
local u=""
local c=""
+ local p=""
if [ "true" = "$(git rev-parse --is-inside-git-dir 2>/dev/null)" ]; then
if [ "true" = "$(git rev-parse --is-bare-repository 2>/dev/null)" ]; then
@@ -159,10 +297,14 @@ __git_ps1 ()
u="%"
fi
fi
+
+ if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
+ __git_ps1_show_upstream
+ fi
fi
local f="$w$i$s$u"
- printf "${1:- (%s)}" "$c${b##refs/heads/}${f:+ $f}$r"
+ printf "${1:- (%s)}" "$c${b##refs/heads/}${f:+ $f}$r$p"
fi
}
diff --git a/revision.c b/revision.c
index 540358184..527ec34e6 100644
--- a/revision.c
+++ b/revision.c
@@ -1253,6 +1253,8 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
revs->boundary = 1;
} else if (!strcmp(arg, "--left-right")) {
revs->left_right = 1;
+ } else if (!strcmp(arg, "--count")) {
+ revs->count = 1;
} else if (!strcmp(arg, "--cherry-pick")) {
revs->cherry_pick = 1;
revs->limited = 1;
diff --git a/revision.h b/revision.h
index 855464f14..36fdf22b2 100644
--- a/revision.h
+++ b/revision.h
@@ -57,6 +57,7 @@ struct rev_info {
limited:1,
unpacked:1,
boundary:2,
+ count:1,
left_right:1,
rewrite_parents:1,
print_parents:1,
@@ -132,6 +133,10 @@ struct rev_info {
/* notes-specific options: which refs to show */
struct display_notes_opt notes_opt;
+
+ /* commit counts */
+ int count_left;
+ int count_right;
};
#define REV_TREE_SAME 0
diff --git a/t/t6007-rev-list-cherry-pick-file.sh b/t/t6007-rev-list-cherry-pick-file.sh
index 4b8611ce2..b565638e9 100755
--- a/t/t6007-rev-list-cherry-pick-file.sh
+++ b/t/t6007-rev-list-cherry-pick-file.sh
@@ -32,6 +32,23 @@ test_expect_success setup '
git tag B
'
+cat >expect <<EOF
+<tags/B
+>tags/C
+EOF
+
+test_expect_success '--left-right' '
+ git rev-list --left-right B...C > actual &&
+ git name-rev --stdin --name-only --refs="*tags/*" \
+ < actual > actual.named &&
+ test_cmp actual.named expect
+'
+
+test_expect_success '--count' '
+ git rev-list --count B...C > actual &&
+ test "$(cat actual)" = 2
+'
+
test_expect_success '--cherry-pick foo comes up empty' '
test -z "$(git rev-list --left-right --cherry-pick B...C -- foo)"
'
@@ -54,4 +71,16 @@ test_expect_success '--cherry-pick with independent, but identical branches' '
HEAD...master -- foo)"
'
+cat >expect <<EOF
+1 2
+EOF
+
+# Insert an extra commit to break the symmetry
+test_expect_success '--count --left-right' '
+ git checkout branch &&
+ test_commit D &&
+ git rev-list --count --left-right B...D > actual &&
+ test_cmp expect actual
+'
+
test_done