summaryrefslogtreecommitdiff
path: root/transport-helper.c
diff options
context:
space:
mode:
Diffstat (limited to 'transport-helper.c')
-rw-r--r--transport-helper.c124
1 files changed, 120 insertions, 4 deletions
diff --git a/transport-helper.c b/transport-helper.c
index 5078c71..11f3d7e 100644
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -6,6 +6,7 @@
#include "diff.h"
#include "revision.h"
#include "quote.h"
+#include "remote.h"
struct helper_data
{
@@ -13,8 +14,12 @@ struct helper_data
struct child_process *helper;
FILE *out;
unsigned fetch : 1,
+ import : 1,
option : 1,
push : 1;
+ /* These go from remote name (as in "list") to private name */
+ struct refspec *refspecs;
+ int refspec_nr;
};
static struct child_process *get_helper(struct transport *transport)
@@ -22,6 +27,9 @@ static struct child_process *get_helper(struct transport *transport)
struct helper_data *data = transport->data;
struct strbuf buf = STRBUF_INIT;
struct child_process *helper;
+ const char **refspecs = NULL;
+ int refspec_nr = 0;
+ int refspec_alloc = 0;
if (data->helper)
return data->helper;
@@ -55,7 +63,25 @@ static struct child_process *get_helper(struct transport *transport)
data->option = 1;
if (!strcmp(buf.buf, "push"))
data->push = 1;
+ if (!strcmp(buf.buf, "import"))
+ data->import = 1;
+ if (!data->refspecs && !prefixcmp(buf.buf, "refspec ")) {
+ ALLOC_GROW(refspecs,
+ refspec_nr + 1,
+ refspec_alloc);
+ refspecs[refspec_nr++] = strdup(buf.buf + strlen("refspec "));
+ }
+ }
+ if (refspecs) {
+ int i;
+ data->refspec_nr = refspec_nr;
+ data->refspecs = parse_fetch_refspec(refspec_nr, refspecs);
+ for (i = 0; i < refspec_nr; i++) {
+ free((char *)refspecs[i]);
+ }
+ free(refspecs);
}
+ strbuf_release(&buf);
return data->helper;
}
@@ -72,7 +98,6 @@ static int disconnect_helper(struct transport *transport)
free(data->helper);
data->helper = NULL;
}
- free(data);
return 0;
}
@@ -154,8 +179,18 @@ static void standard_options(struct transport *t)
set_helper_option(t, "verbosity", buf);
}
+static int release_helper(struct transport *transport)
+{
+ struct helper_data *data = transport->data;
+ free_refspec(data->refspec_nr, data->refspecs);
+ data->refspecs = NULL;
+ disconnect_helper(transport);
+ free(transport->data);
+ return 0;
+}
+
static int fetch_with_fetch(struct transport *transport,
- int nr_heads, const struct ref **to_fetch)
+ int nr_heads, struct ref **to_fetch)
{
struct helper_data *data = transport->data;
int i;
@@ -197,8 +232,64 @@ static int fetch_with_fetch(struct transport *transport,
return 0;
}
+static int get_importer(struct transport *transport, struct child_process *fastimport)
+{
+ struct child_process *helper = get_helper(transport);
+ memset(fastimport, 0, sizeof(*fastimport));
+ fastimport->in = helper->out;
+ fastimport->argv = xcalloc(5, sizeof(*fastimport->argv));
+ fastimport->argv[0] = "fast-import";
+ fastimport->argv[1] = "--quiet";
+
+ fastimport->git_cmd = 1;
+ return start_command(fastimport);
+}
+
+static int fetch_with_import(struct transport *transport,
+ int nr_heads, struct ref **to_fetch)
+{
+ struct child_process fastimport;
+ struct child_process *helper = get_helper(transport);
+ struct helper_data *data = transport->data;
+ int i;
+ struct ref *posn;
+ struct strbuf buf = STRBUF_INIT;
+
+ if (get_importer(transport, &fastimport))
+ die("Couldn't run fast-import");
+
+ for (i = 0; i < nr_heads; i++) {
+ posn = to_fetch[i];
+ if (posn->status & REF_STATUS_UPTODATE)
+ continue;
+
+ strbuf_addf(&buf, "import %s\n", posn->name);
+ write_in_full(helper->in, buf.buf, buf.len);
+ strbuf_reset(&buf);
+ }
+ disconnect_helper(transport);
+ finish_command(&fastimport);
+ free(fastimport.argv);
+ fastimport.argv = NULL;
+
+ for (i = 0; i < nr_heads; i++) {
+ char *private;
+ posn = to_fetch[i];
+ if (posn->status & REF_STATUS_UPTODATE)
+ continue;
+ if (data->refspecs)
+ private = apply_refspecs(data->refspecs, data->refspec_nr, posn->name);
+ else
+ private = strdup(posn->name);
+ read_ref(private, posn->old_sha1);
+ free(private);
+ }
+ strbuf_release(&buf);
+ return 0;
+}
+
static int fetch(struct transport *transport,
- int nr_heads, const struct ref **to_fetch)
+ int nr_heads, struct ref **to_fetch)
{
struct helper_data *data = transport->data;
int i, count;
@@ -214,6 +305,9 @@ static int fetch(struct transport *transport,
if (data->fetch)
return fetch_with_fetch(transport, nr_heads, to_fetch);
+ if (data->import)
+ return fetch_with_import(transport, nr_heads, to_fetch);
+
return -1;
}
@@ -343,6 +437,22 @@ static int push_refs(struct transport *transport,
return 0;
}
+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 helper_data *data = transport->data;
@@ -379,6 +489,12 @@ 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);
@@ -399,6 +515,6 @@ int transport_helper_init(struct transport *transport, const char *name)
transport->get_refs_list = get_refs_list;
transport->fetch = fetch;
transport->push_refs = push_refs;
- transport->disconnect = disconnect_helper;
+ transport->disconnect = release_helper;
return 0;
}