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-rw-r--r--builtin/branch.c2
-rw-r--r--builtin/for-each-ref.c2
-rw-r--r--builtin/log.c2
-rw-r--r--remote.c33
-rw-r--r--remote.h6
-rw-r--r--sha1_name.c25
-rwxr-xr-xt/t1507-rev-parse-upstream.sh8
7 files changed, 48 insertions, 30 deletions
diff --git a/builtin/branch.c b/builtin/branch.c
index bd1fa0b..b7202b3 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -123,7 +123,7 @@ static int branch_merged(int kind, const char *name,
if (kind == REF_LOCAL_BRANCH) {
struct branch *branch = branch_get(name);
- const char *upstream = branch_get_upstream(branch);
+ const char *upstream = branch_get_upstream(branch, NULL);
unsigned char sha1[20];
if (upstream &&
diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index dc2a201..18d209b 100644
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -664,7 +664,7 @@ static void populate_value(struct refinfo *ref)
continue;
branch = branch_get(ref->refname + 11);
- refname = branch_get_upstream(branch);
+ refname = branch_get_upstream(branch, NULL);
if (!refname)
continue;
} else if (starts_with(name, "color:")) {
diff --git a/builtin/log.c b/builtin/log.c
index fb61c08..6faeb82 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -1632,7 +1632,7 @@ int cmd_cherry(int argc, const char **argv, const char *prefix)
break;
default:
current_branch = branch_get(NULL);
- upstream = branch_get_upstream(current_branch);
+ upstream = branch_get_upstream(current_branch, NULL);
if (!upstream) {
fprintf(stderr, _("Could not find a tracked"
" remote branch, please"
diff --git a/remote.c b/remote.c
index dca3442..1b7051a 100644
--- a/remote.c
+++ b/remote.c
@@ -1705,10 +1705,35 @@ int branch_merge_matches(struct branch *branch,
return refname_match(branch->merge[i]->src, refname);
}
-const char *branch_get_upstream(struct branch *branch)
+__attribute((format (printf,2,3)))
+static const char *error_buf(struct strbuf *err, const char *fmt, ...)
{
- if (!branch || !branch->merge || !branch->merge[0])
- return NULL;
+ if (err) {
+ va_list ap;
+ va_start(ap, fmt);
+ strbuf_vaddf(err, fmt, ap);
+ va_end(ap);
+ }
+ return NULL;
+}
+
+const char *branch_get_upstream(struct branch *branch, struct strbuf *err)
+{
+ if (!branch)
+ return error_buf(err, _("HEAD does not point to a branch"));
+ if (!branch->merge || !branch->merge[0] || !branch->merge[0]->dst) {
+ if (!ref_exists(branch->refname))
+ return error_buf(err, _("no such branch: '%s'"),
+ branch->name);
+ if (!branch->merge)
+ return error_buf(err,
+ _("no upstream configured for branch '%s'"),
+ branch->name);
+ return error_buf(err,
+ _("upstream branch '%s' not stored as a remote-tracking branch"),
+ branch->merge[0]->src);
+ }
+
return branch->merge[0]->dst;
}
@@ -1921,7 +1946,7 @@ int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs)
int rev_argc;
/* Cannot stat unless we are marked to build on top of somebody else. */
- base = branch_get_upstream(branch);
+ base = branch_get_upstream(branch, NULL);
if (!base)
return 0;
diff --git a/remote.h b/remote.h
index d968952..03ca005 100644
--- a/remote.h
+++ b/remote.h
@@ -222,8 +222,12 @@ int branch_merge_matches(struct branch *, int n, const char *);
* Return the fully-qualified refname of the tracking branch for `branch`.
* I.e., what "branch@{upstream}" would give you. Returns NULL if no
* upstream is defined.
+ *
+ * If `err` is not NULL and no upstream is defined, a more specific error
+ * message is recorded there (if the function does not return NULL, then
+ * `err` is not touched).
*/
-const char *branch_get_upstream(struct branch *branch);
+const char *branch_get_upstream(struct branch *branch, struct strbuf *err);
/* Flags to match_refs. */
enum match_refs_flags {
diff --git a/sha1_name.c b/sha1_name.c
index 6d10f05..461157a 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -1059,27 +1059,16 @@ static const char *get_upstream_branch(const char *branch_buf, int len)
{
char *branch = xstrndup(branch_buf, len);
struct branch *upstream = branch_get(*branch ? branch : NULL);
+ struct strbuf err = STRBUF_INIT;
+ const char *ret;
- /*
- * Upstream can be NULL only if branch refers to HEAD and HEAD
- * points to something different than a branch.
- */
- if (!upstream)
- die(_("HEAD does not point to a branch"));
- if (!upstream->merge || !upstream->merge[0]->dst) {
- if (!ref_exists(upstream->refname))
- die(_("No such branch: '%s'"), branch);
- if (!upstream->merge) {
- die(_("No upstream configured for branch '%s'"),
- upstream->name);
- }
- die(
- _("Upstream branch '%s' not stored as a remote-tracking branch"),
- upstream->merge[0]->src);
- }
free(branch);
- return upstream->merge[0]->dst;
+ ret = branch_get_upstream(upstream, &err);
+ if (!ret)
+ die("%s", err.buf);
+
+ return ret;
}
static int interpret_upstream_mark(const char *name, int namelen,
diff --git a/t/t1507-rev-parse-upstream.sh b/t/t1507-rev-parse-upstream.sh
index 1978947..46ef1f2 100755
--- a/t/t1507-rev-parse-upstream.sh
+++ b/t/t1507-rev-parse-upstream.sh
@@ -150,7 +150,7 @@ test_expect_success 'branch@{u} works when tracking a local branch' '
test_expect_success 'branch@{u} error message when no upstream' '
cat >expect <<-EOF &&
- fatal: No upstream configured for branch ${sq}non-tracking${sq}
+ fatal: no upstream configured for branch ${sq}non-tracking${sq}
EOF
error_message non-tracking@{u} 2>actual &&
test_i18ncmp expect actual
@@ -158,7 +158,7 @@ test_expect_success 'branch@{u} error message when no upstream' '
test_expect_success '@{u} error message when no upstream' '
cat >expect <<-EOF &&
- fatal: No upstream configured for branch ${sq}master${sq}
+ fatal: no upstream configured for branch ${sq}master${sq}
EOF
test_must_fail git rev-parse --verify @{u} 2>actual &&
test_i18ncmp expect actual
@@ -166,7 +166,7 @@ test_expect_success '@{u} error message when no upstream' '
test_expect_success 'branch@{u} error message with misspelt branch' '
cat >expect <<-EOF &&
- fatal: No such branch: ${sq}no-such-branch${sq}
+ fatal: no such branch: ${sq}no-such-branch${sq}
EOF
error_message no-such-branch@{u} 2>actual &&
test_i18ncmp expect actual
@@ -183,7 +183,7 @@ test_expect_success '@{u} error message when not on a branch' '
test_expect_success 'branch@{u} error message if upstream branch not fetched' '
cat >expect <<-EOF &&
- fatal: Upstream branch ${sq}refs/heads/side${sq} not stored as a remote-tracking branch
+ fatal: upstream branch ${sq}refs/heads/side${sq} not stored as a remote-tracking branch
EOF
error_message bad-upstream@{u} 2>actual &&
test_i18ncmp expect actual