Daniel BarkalowHelpers may use a line like "? name unchanged" to specify that there is nothing new at that name, without any git-specific code to determine the correct response.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> --- Documentation/git-remote-helpers.txt | 4 +++- transport-helper.c | 22 ++++++++++++++++++++++ 2 files changed, 25 insertions(+), 1 deletions(-)
Show changes to 2 files +25 −1
Documentation/git-remote-helpers.txt, transport-helper.c
diff --git a/Documentation/git-remote-helpers.txt b/Documentation/git-remote-helpers.txt index e9aa67e..2c5130f 100644 --- a/Documentation/git-remote-helpers.txt +++ b/Documentation/git-remote-helpers.txt @@ -70,7 +70,9 @@ CAPABILITIES REF LIST ATTRIBUTES ------------------- -None are defined yet, but the caller must accept any which are supplied. +'unchanged':: + This ref is unchanged since the last import or fetch, although + the helper cannot necessarily determine what value that produced. Documentation ------------- diff --git a/transport-helper.c b/transport-helper.c index 3825441..1a05f0b 100644 --- a/transport-helper.c +++ b/transport-helper.c @@ -166,6 +166,22 @@ static int fetch(struct transport *transport, return -1; } +static int has_attribute(const char *attrs, const char *attr) { + int len; + if (!attrs) + return 0; + + len = strlen(attr); + for (;;) { + const char *space = strchrnul(attrs, ' '); + if (len == space - attrs && !strncmp(attrs, attr, len)) + return 1; + if (!*space) + return 0; + attrs = space + 1; + } +} + static struct ref *get_refs_list(struct transport *transport, int for_push) { struct child_process *helper; @@ -202,6 +218,12 @@ static struct ref *get_refs_list(struct transport *transport, int for_push) (*tail)->symref = xstrdup(buf.buf + 1); else if (buf.buf[0] != '?') get_sha1_hex(buf.buf, (*tail)->old_sha1); + if (eon) { + if (has_attribute(eon + 1, "unchanged")) { + (*tail)->status |= REF_STATUS_UPTODATE; + read_ref((*tail)->name, (*tail)->old_sha1); + } + } tail = &((*tail)->next); } strbuf_release(&buf);
-- 1.6.4.2.419.gc86f8