Expand porcelain v2 output to include branch and tracking
branch information. This includes the commit SHA, the branch,
the upstream branch, and the ahead and behind counts.
Signed-off-by: Jeff Hostetler <jeffhost@xxxxxxxxxxxxx>
---
builtin/commit.c | 5 ++++
wt-status.c | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
wt-status.h | 1 +
3 files changed, 92 insertions(+)
diff --git a/builtin/commit.c b/builtin/commit.c
index 5b9efd2..ebb43dd 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -510,6 +510,8 @@ static int run_status(FILE *fp, const char *index_file, const char *prefix, int
s->fp = fp;
s->nowarn = nowarn;
s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
+ if (!s->is_initial)
+ hashcpy(s->sha1_commit, sha1);
s->status_format = status_format;
s->ignore_submodule_arg = ignore_submodule_arg;
@@ -1378,6 +1380,9 @@ int cmd_status(int argc, const char **argv, const char *prefix)
fd = hold_locked_index(&index_lock, 0);
s.is_initial = get_sha1(s.reference, sha1) ? 1 : 0;
+ if (!s.is_initial)
+ hashcpy(s.sha1_commit, sha1);
+
s.ignore_submodule_arg = ignore_submodule_arg;
s.status_format = status_format;
s.verbose = verbose;
diff --git a/wt-status.c b/wt-status.c
index ffdfe11..39eef4b 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -1889,6 +1889,88 @@ void wt_status_print(struct wt_status *s)
}
/*
+ * Print branch and tracking header for porcelain v2 output.
+ * This is printed when the '--branch' parameter is given.
+ *
+ * "## branch: <commit> <head>[ <upstream>[ +<ahead> -<behind>]]<eol>"
+ *
+ * <commit> ::= the current commit hash or the the literal
+ * "(initial)" to indicate an initialized repo
+ * with no commits.
+ *
+ * <head> ::= <branch_name> the current branch name or
+ * "(detached)" literal when detached head or
+ * "(unknown)" when something is wrong.
+ *
+ * <upstream> ::= the upstream branch name, when set.
+ *
+ * <ahead> ::= integer ahead value, when upstream set
+ * and commit is present.
+ *
+ * <behind> ::= integer behind value, when upstream set
+ * and commit is present.
+ *
+ *
+ * The end-of-line is defined by the -z flag.
+ *
+ * <eol> ::= NUL when -z,
+ * LF when NOT -z.
+ *
+ */
+static void wt_porcelain_v2_print_tracking(struct wt_status *s)
+{
+ struct branch *branch;
+ const char *base;
+ const char *branch_name;
+ struct wt_status_state state;
+ int ab_info, nr_ahead, nr_behind;
+
+ memset(&state, 0, sizeof(state));
+ wt_status_get_state(&state, s->branch && !strcmp(s->branch, "HEAD"));
+
+ fprintf(s->fp, "## branch:");
+ fprintf(s->fp, " %s",
+ (s->is_initial ? "(initial)" : sha1_to_hex(s->sha1_commit)));
+
+ if (!s->branch)
+ fprintf(s->fp, " %s", "(unknown)");
+ else {
+ if (!strcmp(s->branch, "HEAD")) {
+ fprintf(s->fp, " %s", "(detached)");
+ if (state.rebase_in_progress || state.rebase_interactive_in_progress)
+ branch_name = state.onto;
+ else if (state.detached_from)
+ branch_name = state.detached_from;
+ else
+ branch_name = "";
+ } else {
+ branch_name = NULL;
+ skip_prefix(s->branch, "refs/heads/", &branch_name);
+ fprintf(s->fp, " %s", branch_name);
+ }
+
+ /* Lookup stats on the upstream tracking branch, if set. */
+ branch = branch_get(branch_name);
+ base = NULL;
+ ab_info = (stat_tracking_info(branch, &nr_ahead, &nr_behind, &base) == 0);
+ if (base) {
+ base = shorten_unambiguous_ref(base, 0);
+ fprintf(s->fp, " %s", base);
+ free((char *)base);
+
+ if (ab_info)
+ fprintf(s->fp, " +%d -%d", nr_ahead, nr_behind);
+ }
+ }
+
+ fprintf(s->fp, "%c", (s->null_termination ? '\0' : '\n'));
+
+ free(state.branch);
+ free(state.onto);
+ free(state.detached_from);
+}
+
+/*
* Convert various submodule status values into a
* string of characters in the buffer provided.
*/
@@ -2132,6 +2214,7 @@ static void wt_porcelain_v2_print_other(
/*
* Print porcelain V2 status.
*
+ * [<v2_branch>]
* [<v2_changed_items>]*
* [<v2_unmerged_items>]*
* [<v2_untracked_items>]*
@@ -2144,6 +2227,9 @@ void wt_porcelain_v2_print(struct wt_status *s)
struct string_list_item *it;
int i;
+ if (s->show_branch)
+ wt_porcelain_v2_print_tracking(s);
+
for (i = 0; i < s->change.nr; i++) {
it = &(s->change.items[i]);
d = it->util;
diff --git a/wt-status.h b/wt-status.h
index f2cb65d..99f2879 100644
--- a/wt-status.h
+++ b/wt-status.h
@@ -93,6 +93,7 @@ struct wt_status {
int hints;
enum wt_status_format status_format;
+ unsigned char sha1_commit[GIT_SHA1_RAWSZ]; /* when not Initial */
/* These are computed during processing of the individual sections */
int commitable;
--
2.8.0.rc4.17.gac42084.dirty
--
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