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![Junio C Hamano](/assets/img/avatar_default.png)
* jc/maint-fetch-alt: fetch-pack: objects in our alternates are available to us refs_from_alternate: helper to use refs from alternates Conflicts: builtin/receive-pack.c
1226 lines
30 KiB
C
1226 lines
30 KiB
C
#include "cache.h"
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#include "transport.h"
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#include "run-command.h"
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#include "pkt-line.h"
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#include "fetch-pack.h"
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#include "send-pack.h"
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#include "walker.h"
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#include "bundle.h"
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#include "dir.h"
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#include "refs.h"
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#include "branch.h"
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#include "url.h"
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/* rsync support */
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/*
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* We copy packed-refs and refs/ into a temporary file, then read the
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* loose refs recursively (sorting whenever possible), and then inserting
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* those packed refs that are not yet in the list (not validating, but
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* assuming that the file is sorted).
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*
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* Appears refactoring this from refs.c is too cumbersome.
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*/
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static int str_cmp(const void *a, const void *b)
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{
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const char *s1 = a;
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const char *s2 = b;
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return strcmp(s1, s2);
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}
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/* path->buf + name_offset is expected to point to "refs/" */
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static int read_loose_refs(struct strbuf *path, int name_offset,
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struct ref **tail)
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{
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DIR *dir = opendir(path->buf);
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struct dirent *de;
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struct {
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char **entries;
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int nr, alloc;
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} list;
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int i, pathlen;
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if (!dir)
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return -1;
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memset (&list, 0, sizeof(list));
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while ((de = readdir(dir))) {
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if (is_dot_or_dotdot(de->d_name))
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continue;
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ALLOC_GROW(list.entries, list.nr + 1, list.alloc);
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list.entries[list.nr++] = xstrdup(de->d_name);
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}
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closedir(dir);
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/* sort the list */
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qsort(list.entries, list.nr, sizeof(char *), str_cmp);
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pathlen = path->len;
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strbuf_addch(path, '/');
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for (i = 0; i < list.nr; i++, strbuf_setlen(path, pathlen + 1)) {
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strbuf_addstr(path, list.entries[i]);
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if (read_loose_refs(path, name_offset, tail)) {
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int fd = open(path->buf, O_RDONLY);
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char buffer[40];
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struct ref *next;
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if (fd < 0)
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continue;
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next = alloc_ref(path->buf + name_offset);
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if (read_in_full(fd, buffer, 40) != 40 ||
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get_sha1_hex(buffer, next->old_sha1)) {
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close(fd);
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free(next);
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continue;
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}
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close(fd);
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(*tail)->next = next;
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*tail = next;
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}
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}
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strbuf_setlen(path, pathlen);
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for (i = 0; i < list.nr; i++)
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free(list.entries[i]);
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free(list.entries);
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return 0;
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}
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/* insert the packed refs for which no loose refs were found */
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static void insert_packed_refs(const char *packed_refs, struct ref **list)
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{
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FILE *f = fopen(packed_refs, "r");
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static char buffer[PATH_MAX];
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if (!f)
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return;
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for (;;) {
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int cmp = cmp, len;
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if (!fgets(buffer, sizeof(buffer), f)) {
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fclose(f);
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return;
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}
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if (hexval(buffer[0]) > 0xf)
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continue;
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len = strlen(buffer);
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if (len && buffer[len - 1] == '\n')
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buffer[--len] = '\0';
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if (len < 41)
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continue;
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while ((*list)->next &&
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(cmp = strcmp(buffer + 41,
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(*list)->next->name)) > 0)
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list = &(*list)->next;
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if (!(*list)->next || cmp < 0) {
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struct ref *next = alloc_ref(buffer + 41);
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buffer[40] = '\0';
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if (get_sha1_hex(buffer, next->old_sha1)) {
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warning ("invalid SHA-1: %s", buffer);
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free(next);
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continue;
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}
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next->next = (*list)->next;
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(*list)->next = next;
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list = &(*list)->next;
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}
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}
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}
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static void set_upstreams(struct transport *transport, struct ref *refs,
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int pretend)
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{
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struct ref *ref;
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for (ref = refs; ref; ref = ref->next) {
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const char *localname;
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const char *tmp;
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const char *remotename;
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unsigned char sha[20];
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int flag = 0;
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/*
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* Check suitability for tracking. Must be successful /
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* already up-to-date ref create/modify (not delete).
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*/
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if (ref->status != REF_STATUS_OK &&
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ref->status != REF_STATUS_UPTODATE)
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continue;
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if (!ref->peer_ref)
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continue;
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if (!ref->new_sha1 || is_null_sha1(ref->new_sha1))
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continue;
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/* Follow symbolic refs (mainly for HEAD). */
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localname = ref->peer_ref->name;
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remotename = ref->name;
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tmp = resolve_ref(localname, sha, 1, &flag);
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if (tmp && flag & REF_ISSYMREF &&
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!prefixcmp(tmp, "refs/heads/"))
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localname = tmp;
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/* Both source and destination must be local branches. */
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if (!localname || prefixcmp(localname, "refs/heads/"))
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continue;
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if (!remotename || prefixcmp(remotename, "refs/heads/"))
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continue;
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if (!pretend)
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install_branch_config(BRANCH_CONFIG_VERBOSE,
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localname + 11, transport->remote->name,
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remotename);
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else
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printf("Would set upstream of '%s' to '%s' of '%s'\n",
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localname + 11, remotename + 11,
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transport->remote->name);
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}
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}
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static const char *rsync_url(const char *url)
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{
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return prefixcmp(url, "rsync://") ? skip_prefix(url, "rsync:") : url;
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}
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static struct ref *get_refs_via_rsync(struct transport *transport, int for_push)
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{
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struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT;
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struct ref dummy = {NULL}, *tail = &dummy;
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struct child_process rsync;
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const char *args[5];
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int temp_dir_len;
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if (for_push)
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return NULL;
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/* copy the refs to the temporary directory */
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strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX"));
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if (!mkdtemp(temp_dir.buf))
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die_errno ("Could not make temporary directory");
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temp_dir_len = temp_dir.len;
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strbuf_addstr(&buf, rsync_url(transport->url));
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strbuf_addstr(&buf, "/refs");
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memset(&rsync, 0, sizeof(rsync));
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rsync.argv = args;
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rsync.stdout_to_stderr = 1;
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args[0] = "rsync";
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args[1] = (transport->verbose > 0) ? "-rv" : "-r";
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args[2] = buf.buf;
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args[3] = temp_dir.buf;
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args[4] = NULL;
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if (run_command(&rsync))
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die ("Could not run rsync to get refs");
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strbuf_reset(&buf);
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strbuf_addstr(&buf, rsync_url(transport->url));
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strbuf_addstr(&buf, "/packed-refs");
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args[2] = buf.buf;
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if (run_command(&rsync))
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die ("Could not run rsync to get refs");
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/* read the copied refs */
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strbuf_addstr(&temp_dir, "/refs");
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read_loose_refs(&temp_dir, temp_dir_len + 1, &tail);
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strbuf_setlen(&temp_dir, temp_dir_len);
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tail = &dummy;
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strbuf_addstr(&temp_dir, "/packed-refs");
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insert_packed_refs(temp_dir.buf, &tail);
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strbuf_setlen(&temp_dir, temp_dir_len);
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if (remove_dir_recursively(&temp_dir, 0))
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warning ("Error removing temporary directory %s.",
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temp_dir.buf);
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strbuf_release(&buf);
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strbuf_release(&temp_dir);
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return dummy.next;
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}
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static int fetch_objs_via_rsync(struct transport *transport,
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int nr_objs, struct ref **to_fetch)
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{
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struct strbuf buf = STRBUF_INIT;
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struct child_process rsync;
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const char *args[8];
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int result;
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strbuf_addstr(&buf, rsync_url(transport->url));
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strbuf_addstr(&buf, "/objects/");
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memset(&rsync, 0, sizeof(rsync));
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rsync.argv = args;
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rsync.stdout_to_stderr = 1;
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args[0] = "rsync";
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args[1] = (transport->verbose > 0) ? "-rv" : "-r";
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args[2] = "--ignore-existing";
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args[3] = "--exclude";
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args[4] = "info";
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args[5] = buf.buf;
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args[6] = get_object_directory();
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args[7] = NULL;
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/* NEEDSWORK: handle one level of alternates */
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result = run_command(&rsync);
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strbuf_release(&buf);
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return result;
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}
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static int write_one_ref(const char *name, const unsigned char *sha1,
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int flags, void *data)
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{
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struct strbuf *buf = data;
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int len = buf->len;
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FILE *f;
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/* when called via for_each_ref(), flags is non-zero */
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if (flags && prefixcmp(name, "refs/heads/") &&
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prefixcmp(name, "refs/tags/"))
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return 0;
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strbuf_addstr(buf, name);
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if (safe_create_leading_directories(buf->buf) ||
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!(f = fopen(buf->buf, "w")) ||
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fprintf(f, "%s\n", sha1_to_hex(sha1)) < 0 ||
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fclose(f))
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return error("problems writing temporary file %s", buf->buf);
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strbuf_setlen(buf, len);
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return 0;
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}
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static int write_refs_to_temp_dir(struct strbuf *temp_dir,
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int refspec_nr, const char **refspec)
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{
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int i;
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for (i = 0; i < refspec_nr; i++) {
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unsigned char sha1[20];
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char *ref;
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if (dwim_ref(refspec[i], strlen(refspec[i]), sha1, &ref) != 1)
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return error("Could not get ref %s", refspec[i]);
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if (write_one_ref(ref, sha1, 0, temp_dir)) {
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free(ref);
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return -1;
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}
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free(ref);
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}
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return 0;
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}
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static int rsync_transport_push(struct transport *transport,
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int refspec_nr, const char **refspec, int flags)
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{
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struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT;
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int result = 0, i;
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struct child_process rsync;
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const char *args[10];
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if (flags & TRANSPORT_PUSH_MIRROR)
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return error("rsync transport does not support mirror mode");
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/* first push the objects */
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strbuf_addstr(&buf, rsync_url(transport->url));
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strbuf_addch(&buf, '/');
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memset(&rsync, 0, sizeof(rsync));
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rsync.argv = args;
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rsync.stdout_to_stderr = 1;
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i = 0;
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args[i++] = "rsync";
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args[i++] = "-a";
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if (flags & TRANSPORT_PUSH_DRY_RUN)
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args[i++] = "--dry-run";
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if (transport->verbose > 0)
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args[i++] = "-v";
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args[i++] = "--ignore-existing";
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args[i++] = "--exclude";
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args[i++] = "info";
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args[i++] = get_object_directory();
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args[i++] = buf.buf;
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args[i++] = NULL;
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if (run_command(&rsync))
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return error("Could not push objects to %s",
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rsync_url(transport->url));
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/* copy the refs to the temporary directory; they could be packed. */
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strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX"));
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if (!mkdtemp(temp_dir.buf))
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die_errno ("Could not make temporary directory");
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strbuf_addch(&temp_dir, '/');
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if (flags & TRANSPORT_PUSH_ALL) {
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if (for_each_ref(write_one_ref, &temp_dir))
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return -1;
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} else if (write_refs_to_temp_dir(&temp_dir, refspec_nr, refspec))
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return -1;
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i = 2;
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if (flags & TRANSPORT_PUSH_DRY_RUN)
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args[i++] = "--dry-run";
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if (!(flags & TRANSPORT_PUSH_FORCE))
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args[i++] = "--ignore-existing";
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args[i++] = temp_dir.buf;
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args[i++] = rsync_url(transport->url);
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args[i++] = NULL;
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if (run_command(&rsync))
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result = error("Could not push to %s",
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rsync_url(transport->url));
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if (remove_dir_recursively(&temp_dir, 0))
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warning ("Could not remove temporary directory %s.",
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temp_dir.buf);
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strbuf_release(&buf);
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strbuf_release(&temp_dir);
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return result;
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}
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struct bundle_transport_data {
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int fd;
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struct bundle_header header;
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};
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static struct ref *get_refs_from_bundle(struct transport *transport, int for_push)
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{
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struct bundle_transport_data *data = transport->data;
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struct ref *result = NULL;
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int i;
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if (for_push)
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return NULL;
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if (data->fd > 0)
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close(data->fd);
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data->fd = read_bundle_header(transport->url, &data->header);
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if (data->fd < 0)
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die ("Could not read bundle '%s'.", transport->url);
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for (i = 0; i < data->header.references.nr; i++) {
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struct ref_list_entry *e = data->header.references.list + i;
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struct ref *ref = alloc_ref(e->name);
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hashcpy(ref->old_sha1, e->sha1);
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ref->next = result;
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result = ref;
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}
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return result;
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}
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static int fetch_refs_from_bundle(struct transport *transport,
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int nr_heads, struct ref **to_fetch)
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{
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struct bundle_transport_data *data = transport->data;
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return unbundle(&data->header, data->fd);
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}
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static int close_bundle(struct transport *transport)
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{
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struct bundle_transport_data *data = transport->data;
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if (data->fd > 0)
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close(data->fd);
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free(data);
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return 0;
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}
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struct git_transport_data {
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struct git_transport_options options;
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struct child_process *conn;
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int fd[2];
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unsigned got_remote_heads : 1;
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struct extra_have_objects extra_have;
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};
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static int set_git_option(struct git_transport_options *opts,
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const char *name, const char *value)
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{
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if (!strcmp(name, TRANS_OPT_UPLOADPACK)) {
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opts->uploadpack = value;
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return 0;
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} else if (!strcmp(name, TRANS_OPT_RECEIVEPACK)) {
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opts->receivepack = value;
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return 0;
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} else if (!strcmp(name, TRANS_OPT_THIN)) {
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opts->thin = !!value;
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return 0;
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} else if (!strcmp(name, TRANS_OPT_FOLLOWTAGS)) {
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opts->followtags = !!value;
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return 0;
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} else if (!strcmp(name, TRANS_OPT_KEEP)) {
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opts->keep = !!value;
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return 0;
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} else if (!strcmp(name, TRANS_OPT_DEPTH)) {
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if (!value)
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opts->depth = 0;
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else
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opts->depth = atoi(value);
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return 0;
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}
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return 1;
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}
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static int connect_setup(struct transport *transport, int for_push, int verbose)
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{
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struct git_transport_data *data = transport->data;
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if (data->conn)
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return 0;
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data->conn = git_connect(data->fd, transport->url,
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for_push ? data->options.receivepack :
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data->options.uploadpack,
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verbose ? CONNECT_VERBOSE : 0);
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return 0;
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}
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static struct ref *get_refs_via_connect(struct transport *transport, int for_push)
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{
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struct git_transport_data *data = transport->data;
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struct ref *refs;
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connect_setup(transport, for_push, 0);
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get_remote_heads(data->fd[0], &refs, 0, NULL,
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for_push ? REF_NORMAL : 0, &data->extra_have);
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data->got_remote_heads = 1;
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return refs;
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}
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static int fetch_refs_via_pack(struct transport *transport,
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int nr_heads, struct ref **to_fetch)
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{
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struct git_transport_data *data = transport->data;
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char **heads = xmalloc(nr_heads * sizeof(*heads));
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char **origh = xmalloc(nr_heads * sizeof(*origh));
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const struct ref *refs;
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char *dest = xstrdup(transport->url);
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struct fetch_pack_args args;
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int i;
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struct ref *refs_tmp = NULL;
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memset(&args, 0, sizeof(args));
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args.uploadpack = data->options.uploadpack;
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args.keep_pack = data->options.keep;
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args.lock_pack = 1;
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args.use_thin_pack = data->options.thin;
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args.include_tag = data->options.followtags;
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args.verbose = (transport->verbose > 0);
|
|
args.quiet = (transport->verbose < 0);
|
|
args.no_progress = !transport->progress;
|
|
args.depth = data->options.depth;
|
|
|
|
for (i = 0; i < nr_heads; i++)
|
|
origh[i] = heads[i] = xstrdup(to_fetch[i]->name);
|
|
|
|
if (!data->got_remote_heads) {
|
|
connect_setup(transport, 0, 0);
|
|
get_remote_heads(data->fd[0], &refs_tmp, 0, NULL, 0, NULL);
|
|
data->got_remote_heads = 1;
|
|
}
|
|
|
|
refs = fetch_pack(&args, data->fd, data->conn,
|
|
refs_tmp ? refs_tmp : transport->remote_refs,
|
|
dest, nr_heads, heads, &transport->pack_lockfile);
|
|
close(data->fd[0]);
|
|
close(data->fd[1]);
|
|
if (finish_connect(data->conn))
|
|
refs = NULL;
|
|
data->conn = NULL;
|
|
data->got_remote_heads = 0;
|
|
|
|
free_refs(refs_tmp);
|
|
|
|
for (i = 0; i < nr_heads; i++)
|
|
free(origh[i]);
|
|
free(origh);
|
|
free(heads);
|
|
free(dest);
|
|
return (refs ? 0 : -1);
|
|
}
|
|
|
|
static int push_had_errors(struct ref *ref)
|
|
{
|
|
for (; ref; ref = ref->next) {
|
|
switch (ref->status) {
|
|
case REF_STATUS_NONE:
|
|
case REF_STATUS_UPTODATE:
|
|
case REF_STATUS_OK:
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int transport_refs_pushed(struct ref *ref)
|
|
{
|
|
for (; ref; ref = ref->next) {
|
|
switch(ref->status) {
|
|
case REF_STATUS_NONE:
|
|
case REF_STATUS_UPTODATE:
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void transport_update_tracking_ref(struct remote *remote, struct ref *ref, int verbose)
|
|
{
|
|
struct refspec rs;
|
|
|
|
if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE)
|
|
return;
|
|
|
|
rs.src = ref->name;
|
|
rs.dst = NULL;
|
|
|
|
if (!remote_find_tracking(remote, &rs)) {
|
|
if (verbose)
|
|
fprintf(stderr, "updating local tracking ref '%s'\n", rs.dst);
|
|
if (ref->deletion) {
|
|
delete_ref(rs.dst, NULL, 0);
|
|
} else
|
|
update_ref("update by push", rs.dst,
|
|
ref->new_sha1, NULL, 0, 0);
|
|
free(rs.dst);
|
|
}
|
|
}
|
|
|
|
static void print_ref_status(char flag, const char *summary, struct ref *to, struct ref *from, const char *msg, int porcelain)
|
|
{
|
|
if (porcelain) {
|
|
if (from)
|
|
fprintf(stdout, "%c\t%s:%s\t", flag, from->name, to->name);
|
|
else
|
|
fprintf(stdout, "%c\t:%s\t", flag, to->name);
|
|
if (msg)
|
|
fprintf(stdout, "%s (%s)\n", summary, msg);
|
|
else
|
|
fprintf(stdout, "%s\n", summary);
|
|
} else {
|
|
fprintf(stderr, " %c %-*s ", flag, TRANSPORT_SUMMARY_WIDTH, summary);
|
|
if (from)
|
|
fprintf(stderr, "%s -> %s", prettify_refname(from->name), prettify_refname(to->name));
|
|
else
|
|
fputs(prettify_refname(to->name), stderr);
|
|
if (msg) {
|
|
fputs(" (", stderr);
|
|
fputs(msg, stderr);
|
|
fputc(')', stderr);
|
|
}
|
|
fputc('\n', stderr);
|
|
}
|
|
}
|
|
|
|
static const char *status_abbrev(unsigned char sha1[20])
|
|
{
|
|
return find_unique_abbrev(sha1, DEFAULT_ABBREV);
|
|
}
|
|
|
|
static void print_ok_ref_status(struct ref *ref, int porcelain)
|
|
{
|
|
if (ref->deletion)
|
|
print_ref_status('-', "[deleted]", ref, NULL, NULL, porcelain);
|
|
else if (is_null_sha1(ref->old_sha1))
|
|
print_ref_status('*',
|
|
(!prefixcmp(ref->name, "refs/tags/") ? "[new tag]" :
|
|
"[new branch]"),
|
|
ref, ref->peer_ref, NULL, porcelain);
|
|
else {
|
|
char quickref[84];
|
|
char type;
|
|
const char *msg;
|
|
|
|
strcpy(quickref, status_abbrev(ref->old_sha1));
|
|
if (ref->nonfastforward) {
|
|
strcat(quickref, "...");
|
|
type = '+';
|
|
msg = "forced update";
|
|
} else {
|
|
strcat(quickref, "..");
|
|
type = ' ';
|
|
msg = NULL;
|
|
}
|
|
strcat(quickref, status_abbrev(ref->new_sha1));
|
|
|
|
print_ref_status(type, quickref, ref, ref->peer_ref, msg, porcelain);
|
|
}
|
|
}
|
|
|
|
static int print_one_push_status(struct ref *ref, const char *dest, int count, int porcelain)
|
|
{
|
|
if (!count)
|
|
fprintf(porcelain ? stdout : stderr, "To %s\n", dest);
|
|
|
|
switch(ref->status) {
|
|
case REF_STATUS_NONE:
|
|
print_ref_status('X', "[no match]", ref, NULL, NULL, porcelain);
|
|
break;
|
|
case REF_STATUS_REJECT_NODELETE:
|
|
print_ref_status('!', "[rejected]", ref, NULL,
|
|
"remote does not support deleting refs", porcelain);
|
|
break;
|
|
case REF_STATUS_UPTODATE:
|
|
print_ref_status('=', "[up to date]", ref,
|
|
ref->peer_ref, NULL, porcelain);
|
|
break;
|
|
case REF_STATUS_REJECT_NONFASTFORWARD:
|
|
print_ref_status('!', "[rejected]", ref, ref->peer_ref,
|
|
"non-fast-forward", porcelain);
|
|
break;
|
|
case REF_STATUS_REMOTE_REJECT:
|
|
print_ref_status('!', "[remote rejected]", ref,
|
|
ref->deletion ? NULL : ref->peer_ref,
|
|
ref->remote_status, porcelain);
|
|
break;
|
|
case REF_STATUS_EXPECTING_REPORT:
|
|
print_ref_status('!', "[remote failure]", ref,
|
|
ref->deletion ? NULL : ref->peer_ref,
|
|
"remote failed to report status", porcelain);
|
|
break;
|
|
case REF_STATUS_OK:
|
|
print_ok_ref_status(ref, porcelain);
|
|
break;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
void transport_print_push_status(const char *dest, struct ref *refs,
|
|
int verbose, int porcelain, int *nonfastforward)
|
|
{
|
|
struct ref *ref;
|
|
int n = 0;
|
|
|
|
if (verbose) {
|
|
for (ref = refs; ref; ref = ref->next)
|
|
if (ref->status == REF_STATUS_UPTODATE)
|
|
n += print_one_push_status(ref, dest, n, porcelain);
|
|
}
|
|
|
|
for (ref = refs; ref; ref = ref->next)
|
|
if (ref->status == REF_STATUS_OK)
|
|
n += print_one_push_status(ref, dest, n, porcelain);
|
|
|
|
*nonfastforward = 0;
|
|
for (ref = refs; ref; ref = ref->next) {
|
|
if (ref->status != REF_STATUS_NONE &&
|
|
ref->status != REF_STATUS_UPTODATE &&
|
|
ref->status != REF_STATUS_OK)
|
|
n += print_one_push_status(ref, dest, n, porcelain);
|
|
if (ref->status == REF_STATUS_REJECT_NONFASTFORWARD)
|
|
*nonfastforward = 1;
|
|
}
|
|
}
|
|
|
|
void transport_verify_remote_names(int nr_heads, const char **heads)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < nr_heads; i++) {
|
|
const char *local = heads[i];
|
|
const char *remote = strrchr(heads[i], ':');
|
|
|
|
if (*local == '+')
|
|
local++;
|
|
|
|
/* A matching refspec is okay. */
|
|
if (remote == local && remote[1] == '\0')
|
|
continue;
|
|
|
|
remote = remote ? (remote + 1) : local;
|
|
switch (check_ref_format(remote)) {
|
|
case 0: /* ok */
|
|
case CHECK_REF_FORMAT_ONELEVEL:
|
|
/* ok but a single level -- that is fine for
|
|
* a match pattern.
|
|
*/
|
|
case CHECK_REF_FORMAT_WILDCARD:
|
|
/* ok but ends with a pattern-match character */
|
|
continue;
|
|
}
|
|
die("remote part of refspec is not a valid name in %s",
|
|
heads[i]);
|
|
}
|
|
}
|
|
|
|
static int git_transport_push(struct transport *transport, struct ref *remote_refs, int flags)
|
|
{
|
|
struct git_transport_data *data = transport->data;
|
|
struct send_pack_args args;
|
|
int ret;
|
|
|
|
if (!data->got_remote_heads) {
|
|
struct ref *tmp_refs;
|
|
connect_setup(transport, 1, 0);
|
|
|
|
get_remote_heads(data->fd[0], &tmp_refs, 0, NULL, REF_NORMAL,
|
|
NULL);
|
|
data->got_remote_heads = 1;
|
|
}
|
|
|
|
memset(&args, 0, sizeof(args));
|
|
args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR);
|
|
args.force_update = !!(flags & TRANSPORT_PUSH_FORCE);
|
|
args.use_thin_pack = data->options.thin;
|
|
args.verbose = (transport->verbose > 0);
|
|
args.quiet = (transport->verbose < 0);
|
|
args.progress = transport->progress;
|
|
args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
|
|
args.porcelain = !!(flags & TRANSPORT_PUSH_PORCELAIN);
|
|
|
|
ret = send_pack(&args, data->fd, data->conn, remote_refs,
|
|
&data->extra_have);
|
|
|
|
close(data->fd[1]);
|
|
close(data->fd[0]);
|
|
ret |= finish_connect(data->conn);
|
|
data->conn = NULL;
|
|
data->got_remote_heads = 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int connect_git(struct transport *transport, const char *name,
|
|
const char *executable, int fd[2])
|
|
{
|
|
struct git_transport_data *data = transport->data;
|
|
data->conn = git_connect(data->fd, transport->url,
|
|
executable, 0);
|
|
fd[0] = data->fd[0];
|
|
fd[1] = data->fd[1];
|
|
return 0;
|
|
}
|
|
|
|
static int disconnect_git(struct transport *transport)
|
|
{
|
|
struct git_transport_data *data = transport->data;
|
|
if (data->conn) {
|
|
if (data->got_remote_heads)
|
|
packet_flush(data->fd[1]);
|
|
close(data->fd[0]);
|
|
close(data->fd[1]);
|
|
finish_connect(data->conn);
|
|
}
|
|
|
|
free(data);
|
|
return 0;
|
|
}
|
|
|
|
void transport_take_over(struct transport *transport,
|
|
struct child_process *child)
|
|
{
|
|
struct git_transport_data *data;
|
|
|
|
if (!transport->smart_options)
|
|
die("Bug detected: Taking over transport requires non-NULL "
|
|
"smart_options field.");
|
|
|
|
data = xcalloc(1, sizeof(*data));
|
|
data->options = *transport->smart_options;
|
|
data->conn = child;
|
|
data->fd[0] = data->conn->out;
|
|
data->fd[1] = data->conn->in;
|
|
data->got_remote_heads = 0;
|
|
transport->data = data;
|
|
|
|
transport->set_option = NULL;
|
|
transport->get_refs_list = get_refs_via_connect;
|
|
transport->fetch = fetch_refs_via_pack;
|
|
transport->push = NULL;
|
|
transport->push_refs = git_transport_push;
|
|
transport->disconnect = disconnect_git;
|
|
transport->smart_options = &(data->options);
|
|
}
|
|
|
|
static int is_local(const char *url)
|
|
{
|
|
const char *colon = strchr(url, ':');
|
|
const char *slash = strchr(url, '/');
|
|
return !colon || (slash && slash < colon) ||
|
|
has_dos_drive_prefix(url);
|
|
}
|
|
|
|
static int is_file(const char *url)
|
|
{
|
|
struct stat buf;
|
|
if (stat(url, &buf))
|
|
return 0;
|
|
return S_ISREG(buf.st_mode);
|
|
}
|
|
|
|
static int external_specification_len(const char *url)
|
|
{
|
|
return strchr(url, ':') - url;
|
|
}
|
|
|
|
struct transport *transport_get(struct remote *remote, const char *url)
|
|
{
|
|
const char *helper;
|
|
struct transport *ret = xcalloc(1, sizeof(*ret));
|
|
|
|
ret->progress = isatty(2);
|
|
|
|
if (!remote)
|
|
die("No remote provided to transport_get()");
|
|
|
|
ret->got_remote_refs = 0;
|
|
ret->remote = remote;
|
|
helper = remote->foreign_vcs;
|
|
|
|
if (!url && remote->url)
|
|
url = remote->url[0];
|
|
ret->url = url;
|
|
|
|
/* maybe it is a foreign URL? */
|
|
if (url) {
|
|
const char *p = url;
|
|
|
|
while (is_urlschemechar(p == url, *p))
|
|
p++;
|
|
if (!prefixcmp(p, "::"))
|
|
helper = xstrndup(url, p - url);
|
|
}
|
|
|
|
if (helper) {
|
|
transport_helper_init(ret, helper);
|
|
} else if (!prefixcmp(url, "rsync:")) {
|
|
ret->get_refs_list = get_refs_via_rsync;
|
|
ret->fetch = fetch_objs_via_rsync;
|
|
ret->push = rsync_transport_push;
|
|
ret->smart_options = NULL;
|
|
} else if (is_local(url) && is_file(url)) {
|
|
struct bundle_transport_data *data = xcalloc(1, sizeof(*data));
|
|
ret->data = data;
|
|
ret->get_refs_list = get_refs_from_bundle;
|
|
ret->fetch = fetch_refs_from_bundle;
|
|
ret->disconnect = close_bundle;
|
|
ret->smart_options = NULL;
|
|
} else if (!is_url(url)
|
|
|| !prefixcmp(url, "file://")
|
|
|| !prefixcmp(url, "git://")
|
|
|| !prefixcmp(url, "ssh://")
|
|
|| !prefixcmp(url, "git+ssh://")
|
|
|| !prefixcmp(url, "ssh+git://")) {
|
|
/* These are builtin smart transports. */
|
|
struct git_transport_data *data = xcalloc(1, sizeof(*data));
|
|
ret->data = data;
|
|
ret->set_option = NULL;
|
|
ret->get_refs_list = get_refs_via_connect;
|
|
ret->fetch = fetch_refs_via_pack;
|
|
ret->push_refs = git_transport_push;
|
|
ret->connect = connect_git;
|
|
ret->disconnect = disconnect_git;
|
|
ret->smart_options = &(data->options);
|
|
|
|
data->conn = NULL;
|
|
data->got_remote_heads = 0;
|
|
} else {
|
|
/* Unknown protocol in URL. Pass to external handler. */
|
|
int len = external_specification_len(url);
|
|
char *handler = xmalloc(len + 1);
|
|
handler[len] = 0;
|
|
strncpy(handler, url, len);
|
|
transport_helper_init(ret, handler);
|
|
}
|
|
|
|
if (ret->smart_options) {
|
|
ret->smart_options->thin = 1;
|
|
ret->smart_options->uploadpack = "git-upload-pack";
|
|
if (remote->uploadpack)
|
|
ret->smart_options->uploadpack = remote->uploadpack;
|
|
ret->smart_options->receivepack = "git-receive-pack";
|
|
if (remote->receivepack)
|
|
ret->smart_options->receivepack = remote->receivepack;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int transport_set_option(struct transport *transport,
|
|
const char *name, const char *value)
|
|
{
|
|
int git_reports = 1, protocol_reports = 1;
|
|
|
|
if (transport->smart_options)
|
|
git_reports = set_git_option(transport->smart_options,
|
|
name, value);
|
|
|
|
if (transport->set_option)
|
|
protocol_reports = transport->set_option(transport, name,
|
|
value);
|
|
|
|
/* If either report is 0, report 0 (success). */
|
|
if (!git_reports || !protocol_reports)
|
|
return 0;
|
|
/* If either reports -1 (invalid value), report -1. */
|
|
if ((git_reports == -1) || (protocol_reports == -1))
|
|
return -1;
|
|
/* Otherwise if both report unknown, report unknown. */
|
|
return 1;
|
|
}
|
|
|
|
void transport_set_verbosity(struct transport *transport, int verbosity,
|
|
int force_progress)
|
|
{
|
|
if (verbosity >= 2)
|
|
transport->verbose = verbosity <= 3 ? verbosity : 3;
|
|
if (verbosity < 0)
|
|
transport->verbose = -1;
|
|
|
|
/**
|
|
* Rules used to determine whether to report progress (processing aborts
|
|
* when a rule is satisfied):
|
|
*
|
|
* 1. Report progress, if force_progress is 1 (ie. --progress).
|
|
* 2. Don't report progress, if verbosity < 0 (ie. -q/--quiet ).
|
|
* 3. Report progress if isatty(2) is 1.
|
|
**/
|
|
transport->progress = force_progress || (verbosity >= 0 && isatty(2));
|
|
}
|
|
|
|
int transport_push(struct transport *transport,
|
|
int refspec_nr, const char **refspec, int flags,
|
|
int *nonfastforward)
|
|
{
|
|
*nonfastforward = 0;
|
|
transport_verify_remote_names(refspec_nr, refspec);
|
|
|
|
if (transport->push) {
|
|
/* Maybe FIXME. But no important transport uses this case. */
|
|
if (flags & TRANSPORT_PUSH_SET_UPSTREAM)
|
|
die("This transport does not support using --set-upstream");
|
|
|
|
return transport->push(transport, refspec_nr, refspec, flags);
|
|
} else if (transport->push_refs) {
|
|
struct ref *remote_refs =
|
|
transport->get_refs_list(transport, 1);
|
|
struct ref *local_refs = get_local_heads();
|
|
int match_flags = MATCH_REFS_NONE;
|
|
int verbose = (transport->verbose > 0);
|
|
int quiet = (transport->verbose < 0);
|
|
int porcelain = flags & TRANSPORT_PUSH_PORCELAIN;
|
|
int pretend = flags & TRANSPORT_PUSH_DRY_RUN;
|
|
int push_ret, ret, err;
|
|
|
|
if (flags & TRANSPORT_PUSH_ALL)
|
|
match_flags |= MATCH_REFS_ALL;
|
|
if (flags & TRANSPORT_PUSH_MIRROR)
|
|
match_flags |= MATCH_REFS_MIRROR;
|
|
|
|
if (match_refs(local_refs, &remote_refs,
|
|
refspec_nr, refspec, match_flags)) {
|
|
return -1;
|
|
}
|
|
|
|
set_ref_status_for_push(remote_refs,
|
|
flags & TRANSPORT_PUSH_MIRROR,
|
|
flags & TRANSPORT_PUSH_FORCE);
|
|
|
|
push_ret = transport->push_refs(transport, remote_refs, flags);
|
|
err = push_had_errors(remote_refs);
|
|
ret = push_ret | err;
|
|
|
|
if (!quiet || err)
|
|
transport_print_push_status(transport->url, remote_refs,
|
|
verbose | porcelain, porcelain,
|
|
nonfastforward);
|
|
|
|
if (flags & TRANSPORT_PUSH_SET_UPSTREAM)
|
|
set_upstreams(transport, remote_refs, pretend);
|
|
|
|
if (!(flags & TRANSPORT_PUSH_DRY_RUN)) {
|
|
struct ref *ref;
|
|
for (ref = remote_refs; ref; ref = ref->next)
|
|
transport_update_tracking_ref(transport->remote, ref, verbose);
|
|
}
|
|
|
|
if (porcelain && !push_ret)
|
|
puts("Done");
|
|
else if (!quiet && !ret && !transport_refs_pushed(remote_refs))
|
|
fprintf(stderr, "Everything up-to-date\n");
|
|
|
|
return ret;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
const struct ref *transport_get_remote_refs(struct transport *transport)
|
|
{
|
|
if (!transport->got_remote_refs) {
|
|
transport->remote_refs = transport->get_refs_list(transport, 0);
|
|
transport->got_remote_refs = 1;
|
|
}
|
|
|
|
return transport->remote_refs;
|
|
}
|
|
|
|
int transport_fetch_refs(struct transport *transport, struct ref *refs)
|
|
{
|
|
int rc;
|
|
int nr_heads = 0, nr_alloc = 0, nr_refs = 0;
|
|
struct ref **heads = NULL;
|
|
struct ref *rm;
|
|
|
|
for (rm = refs; rm; rm = rm->next) {
|
|
nr_refs++;
|
|
if (rm->peer_ref &&
|
|
!is_null_sha1(rm->old_sha1) &&
|
|
!hashcmp(rm->peer_ref->old_sha1, rm->old_sha1))
|
|
continue;
|
|
ALLOC_GROW(heads, nr_heads + 1, nr_alloc);
|
|
heads[nr_heads++] = rm;
|
|
}
|
|
|
|
if (!nr_heads) {
|
|
/*
|
|
* When deepening of a shallow repository is requested,
|
|
* then local and remote refs are likely to still be equal.
|
|
* Just feed them all to the fetch method in that case.
|
|
* This condition shouldn't be met in a non-deepening fetch
|
|
* (see builtin-fetch.c:quickfetch()).
|
|
*/
|
|
heads = xmalloc(nr_refs * sizeof(*heads));
|
|
for (rm = refs; rm; rm = rm->next)
|
|
heads[nr_heads++] = rm;
|
|
}
|
|
|
|
rc = transport->fetch(transport, nr_heads, heads);
|
|
|
|
free(heads);
|
|
return rc;
|
|
}
|
|
|
|
void transport_unlock_pack(struct transport *transport)
|
|
{
|
|
if (transport->pack_lockfile) {
|
|
unlink_or_warn(transport->pack_lockfile);
|
|
free(transport->pack_lockfile);
|
|
transport->pack_lockfile = NULL;
|
|
}
|
|
}
|
|
|
|
int transport_connect(struct transport *transport, const char *name,
|
|
const char *exec, int fd[2])
|
|
{
|
|
if (transport->connect)
|
|
return transport->connect(transport, name, exec, fd);
|
|
else
|
|
die("Operation not supported by protocol");
|
|
}
|
|
|
|
int transport_disconnect(struct transport *transport)
|
|
{
|
|
int ret = 0;
|
|
if (transport->disconnect)
|
|
ret = transport->disconnect(transport);
|
|
free(transport);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Strip username (and password) from an url and return
|
|
* it in a newly allocated string.
|
|
*/
|
|
char *transport_anonymize_url(const char *url)
|
|
{
|
|
char *anon_url, *scheme_prefix, *anon_part;
|
|
size_t anon_len, prefix_len = 0;
|
|
|
|
anon_part = strchr(url, '@');
|
|
if (is_local(url) || !anon_part)
|
|
goto literal_copy;
|
|
|
|
anon_len = strlen(++anon_part);
|
|
scheme_prefix = strstr(url, "://");
|
|
if (!scheme_prefix) {
|
|
if (!strchr(anon_part, ':'))
|
|
/* cannot be "me@there:/path/name" */
|
|
goto literal_copy;
|
|
} else {
|
|
const char *cp;
|
|
/* make sure scheme is reasonable */
|
|
for (cp = url; cp < scheme_prefix; cp++) {
|
|
switch (*cp) {
|
|
/* RFC 1738 2.1 */
|
|
case '+': case '.': case '-':
|
|
break; /* ok */
|
|
default:
|
|
if (isalnum(*cp))
|
|
break;
|
|
/* it isn't */
|
|
goto literal_copy;
|
|
}
|
|
}
|
|
/* @ past the first slash does not count */
|
|
cp = strchr(scheme_prefix + 3, '/');
|
|
if (cp && cp < anon_part)
|
|
goto literal_copy;
|
|
prefix_len = scheme_prefix - url + 3;
|
|
}
|
|
anon_url = xcalloc(1, 1 + prefix_len + anon_len);
|
|
memcpy(anon_url, url, prefix_len);
|
|
memcpy(anon_url + prefix_len, anon_part, anon_len);
|
|
return anon_url;
|
|
literal_copy:
|
|
return xstrdup(url);
|
|
}
|
|
|
|
int refs_from_alternate_cb(struct alternate_object_database *e, void *cb)
|
|
{
|
|
char *other;
|
|
size_t len;
|
|
struct remote *remote;
|
|
struct transport *transport;
|
|
const struct ref *extra;
|
|
alternate_ref_fn *ref_fn = cb;
|
|
|
|
e->name[-1] = '\0';
|
|
other = xstrdup(real_path(e->base));
|
|
e->name[-1] = '/';
|
|
len = strlen(other);
|
|
|
|
while (other[len-1] == '/')
|
|
other[--len] = '\0';
|
|
if (len < 8 || memcmp(other + len - 8, "/objects", 8))
|
|
return 0;
|
|
/* Is this a git repository with refs? */
|
|
memcpy(other + len - 8, "/refs", 6);
|
|
if (!is_directory(other))
|
|
return 0;
|
|
other[len - 8] = '\0';
|
|
remote = remote_get(other);
|
|
transport = transport_get(remote, other);
|
|
for (extra = transport_get_remote_refs(transport);
|
|
extra;
|
|
extra = extra->next)
|
|
ref_fn(extra, NULL);
|
|
transport_disconnect(transport);
|
|
free(other);
|
|
return 0;
|
|
}
|