#include "tag.h"
#include "blob.h"
#include "http.h"
+#include "refs.h"
+#include "revision.h"
#include <expat.h>
static const char http_push_usage[] =
-"git-http-push [--complete] [--force] [--verbose] <url> <ref> [<ref>...]\n";
+"git-http-push [--all] [--force] [--verbose] <remote> [<head>...]\n";
#ifndef XML_STATUS_OK
enum XML_Status {
#define XML_STATUS_ERROR 0
#endif
+#define PREV_BUF_SIZE 4096
#define RANGE_HEADER_SIZE 30
/* DAV methods */
#define DAV_ACTIVELOCK_OWNER ".prop.lockdiscovery.activelock.owner.href"
#define DAV_ACTIVELOCK_TIMEOUT ".prop.lockdiscovery.activelock.timeout"
#define DAV_ACTIVELOCK_TOKEN ".prop.lockdiscovery.activelock.locktoken.href"
+#define DAV_PROPFIND_RESP ".multistatus.response"
+#define DAV_PROPFIND_NAME ".multistatus.response.href"
+#define DAV_PROPFIND_COLLECTION ".multistatus.response.propstat.prop.resourcetype.collection"
/* DAV request body templates */
-#define PROPFIND_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:propfind xmlns:D=\"DAV:\">\n<D:prop xmlns:R=\"%s\">\n<D:supportedlock/>\n</D:prop>\n</D:propfind>"
+#define PROPFIND_SUPPORTEDLOCK_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:propfind xmlns:D=\"DAV:\">\n<D:prop xmlns:R=\"%s\">\n<D:supportedlock/>\n</D:prop>\n</D:propfind>"
+#define PROPFIND_ALL_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:propfind xmlns:D=\"DAV:\">\n<D:allprop/>\n</D:propfind>"
#define LOCK_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:lockinfo xmlns:D=\"DAV:\">\n<D:lockscope><D:exclusive/></D:lockscope>\n<D:locktype><D:write/></D:locktype>\n<D:owner>\n<D:href>mailto:%s</D:href>\n</D:owner>\n</D:lockinfo>"
#define LOCK_TIME 600
#define LOCK_REFRESH 30
+/* bits #0-4 in revision.h */
+
+#define LOCAL (1u << 5)
+#define REMOTE (1u << 6)
+#define FETCHING (1u << 7)
+#define PUSHING (1u << 8)
+
static int pushing = 0;
static int aborted = 0;
static char remote_dir_exists[256];
static int push_all = 0;
static int force_all = 0;
+static struct object_list *objects = NULL;
+
struct repo
{
char *url;
+ int path_len;
+ int has_info_refs;
+ int can_update_info_refs;
+ int has_info_packs;
struct packed_git *packs;
+ struct remote_lock *locks;
};
static struct repo *remote = NULL;
enum transfer_state {
- NEED_CHECK,
- RUN_HEAD,
+ NEED_FETCH,
+ RUN_FETCH_LOOSE,
+ RUN_FETCH_PACKED,
NEED_PUSH,
RUN_MKCOL,
RUN_PUT,
struct transfer_request
{
- unsigned char sha1[20];
+ struct object *obj;
char *url;
char *dest;
- struct active_lock *lock;
+ struct remote_lock *lock;
struct curl_slist *headers;
struct buffer buffer;
char filename[PATH_MAX];
char tmpfile[PATH_MAX];
+ int local_fileno;
+ FILE *local_stream;
enum transfer_state state;
CURLcode curl_result;
char errorstr[CURL_ERROR_SIZE];
z_stream stream;
int zret;
int rename;
+ void *userData;
struct active_request_slot *slot;
struct transfer_request *next;
};
void *userData;
};
-struct active_lock
+struct remote_lock
{
char *url;
char *owner;
time_t start_time;
long timeout;
int refreshing;
+ struct remote_lock *next;
+};
+
+/* Flags that control remote_ls processing */
+#define PROCESS_FILES (1u << 0)
+#define PROCESS_DIRS (1u << 1)
+#define RECURSIVE (1u << 2)
+
+/* Flags that remote_ls passes to callback functions */
+#define IS_DIR (1u << 0)
+
+struct remote_ls_ctx
+{
+ char *path;
+ void (*userFunc)(struct remote_ls_ctx *ls);
+ void *userData;
+ int flags;
+ char *dentry_name;
+ int dentry_flags;
+ struct remote_ls_ctx *parent;
};
static void finish_request(struct transfer_request *request);
+static void release_request(struct transfer_request *request);
static void process_response(void *callback_data)
{
finish_request(request);
}
-static void start_check(struct transfer_request *request)
+static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
+ void *data)
{
- char *hex = sha1_to_hex(request->sha1);
- struct active_request_slot *slot;
+ unsigned char expn[4096];
+ size_t size = eltsize * nmemb;
+ int posn = 0;
+ struct transfer_request *request = (struct transfer_request *)data;
+ do {
+ ssize_t retval = write(request->local_fileno,
+ ptr + posn, size - posn);
+ if (retval < 0)
+ return posn;
+ posn += retval;
+ } while (posn < size);
+
+ request->stream.avail_in = size;
+ request->stream.next_in = ptr;
+ do {
+ request->stream.next_out = expn;
+ request->stream.avail_out = sizeof(expn);
+ request->zret = inflate(&request->stream, Z_SYNC_FLUSH);
+ SHA1_Update(&request->c, expn,
+ sizeof(expn) - request->stream.avail_out);
+ } while (request->stream.avail_in && request->zret == Z_OK);
+ data_received++;
+ return size;
+}
+
+static void start_fetch_loose(struct transfer_request *request)
+{
+ char *hex = sha1_to_hex(request->obj->sha1);
+ char *filename;
+ char prevfile[PATH_MAX];
+ char *url;
char *posn;
+ int prevlocal;
+ unsigned char prev_buf[PREV_BUF_SIZE];
+ ssize_t prev_read = 0;
+ long prev_posn = 0;
+ char range[RANGE_HEADER_SIZE];
+ struct curl_slist *range_header = NULL;
+ struct active_request_slot *slot;
- request->url = xmalloc(strlen(remote->url) + 55);
- strcpy(request->url, remote->url);
- posn = request->url + strlen(remote->url);
+ filename = sha1_file_name(request->obj->sha1);
+ snprintf(request->filename, sizeof(request->filename), "%s", filename);
+ snprintf(request->tmpfile, sizeof(request->tmpfile),
+ "%s.temp", filename);
+
+ snprintf(prevfile, sizeof(prevfile), "%s.prev", request->filename);
+ unlink(prevfile);
+ rename(request->tmpfile, prevfile);
+ unlink(request->tmpfile);
+
+ if (request->local_fileno != -1)
+ error("fd leakage in start: %d", request->local_fileno);
+ request->local_fileno = open(request->tmpfile,
+ O_WRONLY | O_CREAT | O_EXCL, 0666);
+ /* This could have failed due to the "lazy directory creation";
+ * try to mkdir the last path component.
+ */
+ if (request->local_fileno < 0 && errno == ENOENT) {
+ char *dir = strrchr(request->tmpfile, '/');
+ if (dir) {
+ *dir = 0;
+ mkdir(request->tmpfile, 0777);
+ *dir = '/';
+ }
+ request->local_fileno = open(request->tmpfile,
+ O_WRONLY | O_CREAT | O_EXCL, 0666);
+ }
+
+ if (request->local_fileno < 0) {
+ request->state = ABORTED;
+ error("Couldn't create temporary file %s for %s: %s",
+ request->tmpfile, request->filename, strerror(errno));
+ return;
+ }
+
+ memset(&request->stream, 0, sizeof(request->stream));
+
+ inflateInit(&request->stream);
+
+ SHA1_Init(&request->c);
+
+ url = xmalloc(strlen(remote->url) + 50);
+ request->url = xmalloc(strlen(remote->url) + 50);
+ strcpy(url, remote->url);
+ posn = url + strlen(remote->url);
strcpy(posn, "objects/");
posn += 8;
memcpy(posn, hex, 2);
posn += 2;
*(posn++) = '/';
strcpy(posn, hex + 2);
+ strcpy(request->url, url);
+
+ /* If a previous temp file is present, process what was already
+ fetched. */
+ prevlocal = open(prevfile, O_RDONLY);
+ if (prevlocal != -1) {
+ do {
+ prev_read = read(prevlocal, prev_buf, PREV_BUF_SIZE);
+ if (prev_read>0) {
+ if (fwrite_sha1_file(prev_buf,
+ 1,
+ prev_read,
+ request) == prev_read) {
+ prev_posn += prev_read;
+ } else {
+ prev_read = -1;
+ }
+ }
+ } while (prev_read > 0);
+ close(prevlocal);
+ }
+ unlink(prevfile);
+
+ /* Reset inflate/SHA1 if there was an error reading the previous temp
+ file; also rewind to the beginning of the local file. */
+ if (prev_read == -1) {
+ memset(&request->stream, 0, sizeof(request->stream));
+ inflateInit(&request->stream);
+ SHA1_Init(&request->c);
+ if (prev_posn>0) {
+ prev_posn = 0;
+ lseek(request->local_fileno, SEEK_SET, 0);
+ ftruncate(request->local_fileno, 0);
+ }
+ }
slot = get_active_slot();
slot->callback_func = process_response;
slot->callback_data = request;
+ request->slot = slot;
+
+ curl_easy_setopt(slot->curl, CURLOPT_FILE, request);
+ curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr);
- curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
- curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
+ curl_easy_setopt(slot->curl, CURLOPT_URL, url);
+ curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
- if (start_active_slot(slot)) {
- request->slot = slot;
- request->state = RUN_HEAD;
- } else {
- request->state = ABORTED;
- free(request->url);
- request->url = NULL;
+ /* If we have successfully processed data from a previous fetch
+ attempt, only fetch the data we don't already have. */
+ if (prev_posn>0) {
+ if (push_verbosely)
+ fprintf(stderr,
+ "Resuming fetch of object %s at byte %ld\n",
+ hex, prev_posn);
+ sprintf(range, "Range: bytes=%ld-", prev_posn);
+ range_header = curl_slist_append(range_header, range);
+ curl_easy_setopt(slot->curl,
+ CURLOPT_HTTPHEADER, range_header);
+ }
+
+ /* Try to get the request started, abort the request on error */
+ request->state = RUN_FETCH_LOOSE;
+ if (!start_active_slot(slot)) {
+ fprintf(stderr, "Unable to start GET request\n");
+ remote->can_update_info_refs = 0;
+ release_request(request);
+ }
+}
+
+static void start_fetch_packed(struct transfer_request *request)
+{
+ char *url;
+ struct packed_git *target;
+ FILE *packfile;
+ char *filename;
+ long prev_posn = 0;
+ char range[RANGE_HEADER_SIZE];
+ struct curl_slist *range_header = NULL;
+
+ struct transfer_request *check_request = request_queue_head;
+ struct active_request_slot *slot;
+
+ target = find_sha1_pack(request->obj->sha1, remote->packs);
+ if (!target) {
+ fprintf(stderr, "Unable to fetch %s, will not be able to update server info refs\n", sha1_to_hex(request->obj->sha1));
+ remote->can_update_info_refs = 0;
+ release_request(request);
+ return;
+ }
+
+ fprintf(stderr, "Fetching pack %s\n", sha1_to_hex(target->sha1));
+ fprintf(stderr, " which contains %s\n", sha1_to_hex(request->obj->sha1));
+
+ filename = sha1_pack_name(target->sha1);
+ snprintf(request->filename, sizeof(request->filename), "%s", filename);
+ snprintf(request->tmpfile, sizeof(request->tmpfile),
+ "%s.temp", filename);
+
+ url = xmalloc(strlen(remote->url) + 64);
+ sprintf(url, "%sobjects/pack/pack-%s.pack",
+ remote->url, sha1_to_hex(target->sha1));
+
+ /* Make sure there isn't another open request for this pack */
+ while (check_request) {
+ if (check_request->state == RUN_FETCH_PACKED &&
+ !strcmp(check_request->url, url)) {
+ free(url);
+ release_request(request);
+ return;
+ }
+ check_request = check_request->next;
+ }
+
+ packfile = fopen(request->tmpfile, "a");
+ if (!packfile) {
+ fprintf(stderr, "Unable to open local file %s for pack",
+ filename);
+ remote->can_update_info_refs = 0;
+ free(url);
+ return;
+ }
+
+ slot = get_active_slot();
+ slot->callback_func = process_response;
+ slot->callback_data = request;
+ request->slot = slot;
+ request->local_stream = packfile;
+ request->userData = target;
+
+ request->url = url;
+ curl_easy_setopt(slot->curl, CURLOPT_FILE, packfile);
+ curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
+ curl_easy_setopt(slot->curl, CURLOPT_URL, url);
+ curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
+ slot->local = packfile;
+
+ /* If there is data present from a previous transfer attempt,
+ resume where it left off */
+ prev_posn = ftell(packfile);
+ if (prev_posn>0) {
+ if (push_verbosely)
+ fprintf(stderr,
+ "Resuming fetch of pack %s at byte %ld\n",
+ sha1_to_hex(target->sha1), prev_posn);
+ sprintf(range, "Range: bytes=%ld-", prev_posn);
+ range_header = curl_slist_append(range_header, range);
+ curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, range_header);
+ }
+
+ /* Try to get the request started, abort the request on error */
+ request->state = RUN_FETCH_PACKED;
+ if (!start_active_slot(slot)) {
+ fprintf(stderr, "Unable to start GET request\n");
+ remote->can_update_info_refs = 0;
+ release_request(request);
}
}
static void start_mkcol(struct transfer_request *request)
{
- char *hex = sha1_to_hex(request->sha1);
+ char *hex = sha1_to_hex(request->obj->sha1);
struct active_request_slot *slot;
char *posn;
static void start_put(struct transfer_request *request)
{
- char *hex = sha1_to_hex(request->sha1);
+ char *hex = sha1_to_hex(request->obj->sha1);
struct active_request_slot *slot;
char *posn;
char type[20];
ssize_t size;
z_stream stream;
- unpacked = read_sha1_file(request->sha1, type, &len);
+ unpacked = read_sha1_file(request->obj->sha1, type, &len);
hdrlen = sprintf(hdr, "%s %lu", type, len) + 1;
/* Set it up */
}
}
-static int refresh_lock(struct active_lock *lock)
+static int refresh_lock(struct remote_lock *lock)
{
struct active_request_slot *slot;
+ struct slot_results results;
char *if_header;
char timeout_header[25];
struct curl_slist *dav_headers = NULL;
dav_headers = curl_slist_append(dav_headers, timeout_header);
slot = get_active_slot();
+ slot->results = &results;
curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
if (start_active_slot(slot)) {
run_active_slot(slot);
- if (slot->curl_result != CURLE_OK) {
- fprintf(stderr, "Got HTTP error %ld\n", slot->http_code);
+ if (results.curl_result != CURLE_OK) {
+ fprintf(stderr, "LOCK HTTP error %ld\n",
+ results.http_code);
} else {
lock->start_time = time(NULL);
rc = 1;
return rc;
}
-static void finish_request(struct transfer_request *request)
+static void check_locks()
{
+ struct remote_lock *lock = remote->locks;
time_t current_time = time(NULL);
int time_remaining;
- request->curl_result = request->slot->curl_result;
+ while (lock) {
+ time_remaining = lock->start_time + lock->timeout -
+ current_time;
+ if (!lock->refreshing && time_remaining < LOCK_REFRESH) {
+ if (!refresh_lock(lock)) {
+ fprintf(stderr,
+ "Unable to refresh lock for %s\n",
+ lock->url);
+ aborted = 1;
+ return;
+ }
+ }
+ lock = lock->next;
+ }
+}
+
+static void release_request(struct transfer_request *request)
+{
+ struct transfer_request *entry = request_queue_head;
+
+ if (request == request_queue_head) {
+ request_queue_head = request->next;
+ } else {
+ while (entry->next != NULL && entry->next != request)
+ entry = entry->next;
+ if (entry->next == request)
+ entry->next = entry->next->next;
+ }
+
+ if (request->local_fileno != -1)
+ close(request->local_fileno);
+ if (request->local_stream)
+ fclose(request->local_stream);
+ if (request->url != NULL)
+ free(request->url);
+ free(request);
+}
+
+static void finish_request(struct transfer_request *request)
+{
+ struct stat st;
+ struct packed_git *target;
+ struct packed_git **lst;
+
+ request->curl_result = request->slot->curl_result;
request->http_code = request->slot->http_code;
request->slot = NULL;
- /* Refresh the lock if it is close to timing out */
- time_remaining = request->lock->start_time + request->lock->timeout
- - current_time;
- if (time_remaining < LOCK_REFRESH && !request->lock->refreshing) {
- if (!refresh_lock(request->lock)) {
- fprintf(stderr, "Unable to refresh remote lock\n");
- aborted = 1;
- }
- }
+ /* Keep locks active */
+ check_locks();
if (request->headers != NULL)
curl_slist_free_all(request->headers);
if (request->state != RUN_PUT) {
free(request->url);
request->url = NULL;
- }
-
- if (request->state == RUN_HEAD) {
- if (request->http_code == 404) {
- request->state = NEED_PUSH;
- } else if (request->curl_result == CURLE_OK) {
- remote_dir_exists[request->sha1[0]] = 1;
- request->state = COMPLETE;
- } else {
- fprintf(stderr, "HEAD %s failed, aborting (%d/%ld)\n",
- sha1_to_hex(request->sha1),
- request->curl_result, request->http_code);
- request->state = ABORTED;
- aborted = 1;
- }
- } else if (request->state == RUN_MKCOL) {
+ }
+
+ if (request->state == RUN_MKCOL) {
if (request->curl_result == CURLE_OK ||
request->http_code == 405) {
- remote_dir_exists[request->sha1[0]] = 1;
+ remote_dir_exists[request->obj->sha1[0]] = 1;
start_put(request);
} else {
fprintf(stderr, "MKCOL %s failed, aborting (%d/%ld)\n",
- sha1_to_hex(request->sha1),
+ sha1_to_hex(request->obj->sha1),
request->curl_result, request->http_code);
request->state = ABORTED;
aborted = 1;
start_move(request);
} else {
fprintf(stderr, "PUT %s failed, aborting (%d/%ld)\n",
- sha1_to_hex(request->sha1),
+ sha1_to_hex(request->obj->sha1),
request->curl_result, request->http_code);
request->state = ABORTED;
aborted = 1;
} else if (request->state == RUN_MOVE) {
if (request->curl_result == CURLE_OK) {
if (push_verbosely)
- fprintf(stderr,
- "sent %s\n",
- sha1_to_hex(request->sha1));
- request->state = COMPLETE;
+ fprintf(stderr, " sent %s\n",
+ sha1_to_hex(request->obj->sha1));
+ request->obj->flags |= REMOTE;
+ release_request(request);
} else {
fprintf(stderr, "MOVE %s failed, aborting (%d/%ld)\n",
- sha1_to_hex(request->sha1),
+ sha1_to_hex(request->obj->sha1),
request->curl_result, request->http_code);
request->state = ABORTED;
aborted = 1;
}
- }
-}
+ } else if (request->state == RUN_FETCH_LOOSE) {
+ fchmod(request->local_fileno, 0444);
+ close(request->local_fileno); request->local_fileno = -1;
+
+ if (request->curl_result != CURLE_OK &&
+ request->http_code != 416) {
+ if (stat(request->tmpfile, &st) == 0) {
+ if (st.st_size == 0)
+ unlink(request->tmpfile);
+ }
+ } else {
+ if (request->http_code == 416)
+ fprintf(stderr, "Warning: requested range invalid; we may already have all the data.\n");
+
+ inflateEnd(&request->stream);
+ SHA1_Final(request->real_sha1, &request->c);
+ if (request->zret != Z_STREAM_END) {
+ unlink(request->tmpfile);
+ } else if (memcmp(request->obj->sha1, request->real_sha1, 20)) {
+ unlink(request->tmpfile);
+ } else {
+ request->rename =
+ move_temp_to_file(
+ request->tmpfile,
+ request->filename);
+ if (request->rename == 0) {
+ request->obj->flags |= (LOCAL | REMOTE);
+ }
+ }
+ }
-static void release_request(struct transfer_request *request)
-{
- struct transfer_request *entry = request_queue_head;
+ /* Try fetching packed if necessary */
+ if (request->obj->flags & LOCAL)
+ release_request(request);
+ else
+ start_fetch_packed(request);
- if (request == request_queue_head) {
- request_queue_head = request->next;
- } else {
- while (entry->next != NULL && entry->next != request)
- entry = entry->next;
- if (entry->next == request)
- entry->next = entry->next->next;
+ } else if (request->state == RUN_FETCH_PACKED) {
+ if (request->curl_result != CURLE_OK) {
+ fprintf(stderr, "Unable to get pack file %s\n%s",
+ request->url, curl_errorstr);
+ remote->can_update_info_refs = 0;
+ } else {
+ fclose(request->local_stream);
+ request->local_stream = NULL;
+ if (!move_temp_to_file(request->tmpfile,
+ request->filename)) {
+ target = (struct packed_git *)request->userData;
+ lst = &remote->packs;
+ while (*lst != target)
+ lst = &((*lst)->next);
+ *lst = (*lst)->next;
+
+ if (!verify_pack(target, 0))
+ install_packed_git(target);
+ else
+ remote->can_update_info_refs = 0;
+ }
+ }
+ release_request(request);
}
-
- if (request->url != NULL)
- free(request->url);
- free(request);
}
void fill_active_slots(void)
{
struct transfer_request *request = request_queue_head;
+ struct transfer_request *next;
struct active_request_slot *slot = active_queue_head;
int num_transfers;
return;
while (active_requests < max_requests && request != NULL) {
- if (!pushing && request->state == NEED_CHECK) {
- start_check(request);
- curl_multi_perform(curlm, &num_transfers);
+ next = request->next;
+ if (request->state == NEED_FETCH) {
+ start_fetch_loose(request);
} else if (pushing && request->state == NEED_PUSH) {
- if (remote_dir_exists[request->sha1[0]])
+ if (remote_dir_exists[request->obj->sha1[0]] == 1) {
start_put(request);
- else
+ } else {
start_mkcol(request);
+ }
curl_multi_perform(curlm, &num_transfers);
}
- request = request->next;
+ request = next;
}
while (slot != NULL) {
slot->curl = NULL;
}
slot = slot->next;
- }
+ }
}
-static void add_request(unsigned char *sha1, struct active_lock *lock)
+static void get_remote_object_list(unsigned char parent);
+
+static void add_fetch_request(struct object *obj)
+{
+ struct transfer_request *request;
+
+ check_locks();
+
+ /*
+ * Don't fetch the object if it's known to exist locally
+ * or is already in the request queue
+ */
+ if (remote_dir_exists[obj->sha1[0]] == -1)
+ get_remote_object_list(obj->sha1[0]);
+ if (obj->flags & (LOCAL | FETCHING))
+ return;
+
+ obj->flags |= FETCHING;
+ request = xmalloc(sizeof(*request));
+ request->obj = obj;
+ request->url = NULL;
+ request->lock = NULL;
+ request->headers = NULL;
+ request->local_fileno = -1;
+ request->local_stream = NULL;
+ request->state = NEED_FETCH;
+ request->next = request_queue_head;
+ request_queue_head = request;
+
+ fill_active_slots();
+ step_active_slots();
+}
+
+static int add_send_request(struct object *obj, struct remote_lock *lock)
{
struct transfer_request *request = request_queue_head;
struct packed_git *target;
-
- while (request != NULL && memcmp(request->sha1, sha1, 20))
- request = request->next;
- if (request != NULL)
- return;
- target = find_sha1_pack(sha1, remote->packs);
- if (target)
- return;
+ /* Keep locks active */
+ check_locks();
+
+ /*
+ * Don't push the object if it's known to exist on the remote
+ * or is already in the request queue
+ */
+ if (remote_dir_exists[obj->sha1[0]] == -1)
+ get_remote_object_list(obj->sha1[0]);
+ if (obj->flags & (REMOTE | PUSHING))
+ return 0;
+ target = find_sha1_pack(obj->sha1, remote->packs);
+ if (target) {
+ obj->flags |= REMOTE;
+ return 0;
+ }
+ obj->flags |= PUSHING;
request = xmalloc(sizeof(*request));
- memcpy(request->sha1, sha1, 20);
+ request->obj = obj;
request->url = NULL;
request->lock = lock;
request->headers = NULL;
- request->state = NEED_CHECK;
+ request->local_fileno = -1;
+ request->local_stream = NULL;
+ request->state = NEED_PUSH;
request->next = request_queue_head;
request_queue_head = request;
fill_active_slots();
step_active_slots();
+
+ return 1;
}
static int fetch_index(unsigned char *sha1)
FILE *indexfile;
struct active_request_slot *slot;
+ struct slot_results results;
/* Don't use the index if the pack isn't there */
- url = xmalloc(strlen(remote->url) + 65);
- sprintf(url, "%s/objects/pack/pack-%s.pack", remote->url, hex);
+ url = xmalloc(strlen(remote->url) + 64);
+ sprintf(url, "%sobjects/pack/pack-%s.pack", remote->url, hex);
slot = get_active_slot();
+ slot->results = &results;
curl_easy_setopt(slot->curl, CURLOPT_URL, url);
curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
if (start_active_slot(slot)) {
run_active_slot(slot);
- if (slot->curl_result != CURLE_OK) {
+ if (results.curl_result != CURLE_OK) {
free(url);
return error("Unable to verify pack %s is available",
hex);
if (push_verbosely)
fprintf(stderr, "Getting index for pack %s\n", hex);
-
- sprintf(url, "%s/objects/pack/pack-%s.idx", remote->url, hex);
-
+
+ sprintf(url, "%sobjects/pack/pack-%s.idx", remote->url, hex);
+
filename = sha1_pack_index_name(sha1);
snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename);
indexfile = fopen(tmpfile, "a");
filename);
slot = get_active_slot();
+ slot->results = &results;
curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
curl_easy_setopt(slot->curl, CURLOPT_FILE, indexfile);
if (start_active_slot(slot)) {
run_active_slot(slot);
- if (slot->curl_result != CURLE_OK) {
+ if (results.curl_result != CURLE_OK) {
free(url);
fclose(indexfile);
return error("Unable to get pack index %s\n%s", url,
int i = 0;
struct active_request_slot *slot;
+ struct slot_results results;
data = xmalloc(4096);
memset(data, 0, 4096);
if (push_verbosely)
fprintf(stderr, "Getting pack list\n");
-
- url = xmalloc(strlen(remote->url) + 21);
- sprintf(url, "%s/objects/info/packs", remote->url);
+
+ url = xmalloc(strlen(remote->url) + 20);
+ sprintf(url, "%sobjects/info/packs", remote->url);
slot = get_active_slot();
+ slot->results = &results;
curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
curl_easy_setopt(slot->curl, CURLOPT_URL, url);
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
if (start_active_slot(slot)) {
run_active_slot(slot);
- if (slot->curl_result != CURLE_OK) {
+ if (results.curl_result != CURLE_OK) {
free(buffer.buffer);
free(url);
- if (slot->http_code == 404)
+ if (results.http_code == 404)
return 0;
else
return error("%s", curl_errorstr);
int len, baselen, ch;
baselen = strlen(base);
- len = baselen + 12; /* "refs/heads/" + NUL */
+ len = baselen + 1;
for (cp = ref; (ch = *cp) != 0; cp++, len++)
if (needs_quote(ch))
len += 2; /* extra two hex plus replacement % */
qref = xmalloc(len);
memcpy(qref, base, baselen);
- memcpy(qref + baselen, "refs/heads/", 11);
- for (cp = ref, dp = qref + baselen + 11; (ch = *cp) != 0; cp++) {
+ for (cp = ref, dp = qref + baselen; (ch = *cp) != 0; cp++) {
if (needs_quote(ch)) {
*dp++ = '%';
*dp++ = hex((ch >> 4) & 0xF);
struct buffer buffer;
char *base = remote->url;
struct active_request_slot *slot;
+ struct slot_results results;
buffer.size = 41;
buffer.posn = 0;
buffer.buffer = hex;
hex[41] = '\0';
-
+
url = quote_ref_url(base, ref);
slot = get_active_slot();
+ slot->results = &results;
curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
curl_easy_setopt(slot->curl, CURLOPT_URL, url);
if (start_active_slot(slot)) {
run_active_slot(slot);
- if (slot->curl_result != CURLE_OK)
+ if (results.curl_result != CURLE_OK)
return error("Couldn't get %s for %s\n%s",
url, ref, curl_errorstr);
} else {
return 0;
}
+static void one_remote_object(const char *hex)
+{
+ unsigned char sha1[20];
+ struct object *obj;
+
+ if (get_sha1_hex(hex, sha1) != 0)
+ return;
+
+ obj = lookup_object(sha1);
+ if (!obj)
+ obj = parse_object(sha1);
+
+ /* Ignore remote objects that don't exist locally */
+ if (!obj)
+ return;
+
+ obj->flags |= REMOTE;
+ if (!object_list_contains(objects, obj))
+ add_object(obj, &objects, NULL, "");
+}
+
static void handle_lockprop_ctx(struct xml_ctx *ctx, int tag_closed)
{
int *lock_flags = (int *)ctx->userData;
static void handle_new_lock_ctx(struct xml_ctx *ctx, int tag_closed)
{
- struct active_lock *lock = (struct active_lock *)ctx->userData;
+ struct remote_lock *lock = (struct remote_lock *)ctx->userData;
if (tag_closed && ctx->cdata) {
if (!strcmp(ctx->name, DAV_ACTIVELOCK_OWNER)) {
}
}
+static void one_remote_ref(char *refname);
+
static void
xml_start_tag(void *userData, const char *name, const char **atts)
{
strncpy(ctx->cdata, s, len);
}
-static struct active_lock *lock_remote(char *file, long timeout)
+static struct remote_lock *lock_remote(char *path, long timeout)
{
struct active_request_slot *slot;
+ struct slot_results results;
struct buffer out_buffer;
struct buffer in_buffer;
char *out_data;
char *url;
char *ep;
char timeout_header[25];
- struct active_lock *new_lock = NULL;
+ struct remote_lock *lock = NULL;
XML_Parser parser = XML_ParserCreate(NULL);
enum XML_Status result;
struct curl_slist *dav_headers = NULL;
struct xml_ctx ctx;
- url = xmalloc(strlen(remote->url) + strlen(file) + 1);
- sprintf(url, "%s%s", remote->url, file);
+ url = xmalloc(strlen(remote->url) + strlen(path) + 1);
+ sprintf(url, "%s%s", remote->url, path);
/* Make sure leading directories exist for the remote ref */
ep = strchr(url + strlen(remote->url) + 11, '/');
while (ep) {
*ep = 0;
slot = get_active_slot();
+ slot->results = &results;
curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
curl_easy_setopt(slot->curl, CURLOPT_URL, url);
curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL);
curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
if (start_active_slot(slot)) {
run_active_slot(slot);
- if (slot->curl_result != CURLE_OK &&
- slot->http_code != 405) {
+ if (results.curl_result != CURLE_OK &&
+ results.http_code != 405) {
fprintf(stderr,
"Unable to create branch path %s\n",
url);
return NULL;
}
} else {
- fprintf(stderr, "Unable to start request\n");
+ fprintf(stderr, "Unable to start MKCOL request\n");
free(url);
return NULL;
}
dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
slot = get_active_slot();
+ slot->results = &results;
curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size);
curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK);
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
- new_lock = xcalloc(1, sizeof(*new_lock));
- new_lock->owner = NULL;
- new_lock->token = NULL;
- new_lock->timeout = -1;
- new_lock->refreshing = 0;
+ lock = xcalloc(1, sizeof(*lock));
+ lock->timeout = -1;
if (start_active_slot(slot)) {
run_active_slot(slot);
- if (slot->curl_result == CURLE_OK) {
+ if (results.curl_result == CURLE_OK) {
ctx.name = xcalloc(10, 1);
ctx.len = 0;
ctx.cdata = NULL;
ctx.userFunc = handle_new_lock_ctx;
- ctx.userData = new_lock;
+ ctx.userData = lock;
XML_SetUserData(parser, &ctx);
XML_SetElementHandler(parser, xml_start_tag,
xml_end_tag);
fprintf(stderr, "XML error: %s\n",
XML_ErrorString(
XML_GetErrorCode(parser)));
- new_lock->timeout = -1;
+ lock->timeout = -1;
}
}
} else {
- fprintf(stderr, "Unable to start request\n");
+ fprintf(stderr, "Unable to start LOCK request\n");
}
curl_slist_free_all(dav_headers);
free(out_data);
free(in_data);
- if (new_lock->token == NULL || new_lock->timeout <= 0) {
- if (new_lock->token != NULL)
- free(new_lock->token);
- if (new_lock->owner != NULL)
- free(new_lock->owner);
+ if (lock->token == NULL || lock->timeout <= 0) {
+ if (lock->token != NULL)
+ free(lock->token);
+ if (lock->owner != NULL)
+ free(lock->owner);
free(url);
- free(new_lock);
- new_lock = NULL;
+ free(lock);
+ lock = NULL;
} else {
- new_lock->url = url;
- new_lock->start_time = time(NULL);
+ lock->url = url;
+ lock->start_time = time(NULL);
+ lock->next = remote->locks;
+ remote->locks = lock;
}
- return new_lock;
+ return lock;
}
-static int unlock_remote(struct active_lock *lock)
+static int unlock_remote(struct remote_lock *lock)
{
struct active_request_slot *slot;
+ struct slot_results results;
+ struct remote_lock *prev = remote->locks;
char *lock_token_header;
struct curl_slist *dav_headers = NULL;
int rc = 0;
dav_headers = curl_slist_append(dav_headers, lock_token_header);
slot = get_active_slot();
+ slot->results = &results;
curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_UNLOCK);
if (start_active_slot(slot)) {
run_active_slot(slot);
- if (slot->curl_result == CURLE_OK)
+ if (results.curl_result == CURLE_OK)
rc = 1;
else
- fprintf(stderr, "Got HTTP error %ld\n",
- slot->http_code);
+ fprintf(stderr, "UNLOCK HTTP error %ld\n",
+ results.http_code);
} else {
- fprintf(stderr, "Unable to start request\n");
+ fprintf(stderr, "Unable to start UNLOCK request\n");
}
curl_slist_free_all(dav_headers);
free(lock_token_header);
+ if (remote->locks == lock) {
+ remote->locks = lock->next;
+ } else {
+ while (prev && prev->next != lock)
+ prev = prev->next;
+ if (prev)
+ prev->next = prev->next->next;
+ }
+
if (lock->owner != NULL)
free(lock->owner);
free(lock->url);
return rc;
}
+static void remote_ls(const char *path, int flags,
+ void (*userFunc)(struct remote_ls_ctx *ls),
+ void *userData);
+
+static void process_ls_object(struct remote_ls_ctx *ls)
+{
+ unsigned int *parent = (unsigned int *)ls->userData;
+ char *path = ls->dentry_name;
+ char *obj_hex;
+
+ if (!strcmp(ls->path, ls->dentry_name) && (ls->flags & IS_DIR)) {
+ remote_dir_exists[*parent] = 1;
+ return;
+ }
+
+ if (strlen(path) != 49)
+ return;
+ path += 8;
+ obj_hex = xmalloc(strlen(path));
+ strncpy(obj_hex, path, 2);
+ strcpy(obj_hex + 2, path + 3);
+ one_remote_object(obj_hex);
+ free(obj_hex);
+}
+
+static void process_ls_ref(struct remote_ls_ctx *ls)
+{
+ if (!strcmp(ls->path, ls->dentry_name) && (ls->dentry_flags & IS_DIR)) {
+ fprintf(stderr, " %s\n", ls->dentry_name);
+ return;
+ }
+
+ if (!(ls->dentry_flags & IS_DIR))
+ one_remote_ref(ls->dentry_name);
+}
+
+static void handle_remote_ls_ctx(struct xml_ctx *ctx, int tag_closed)
+{
+ struct remote_ls_ctx *ls = (struct remote_ls_ctx *)ctx->userData;
+
+ if (tag_closed) {
+ if (!strcmp(ctx->name, DAV_PROPFIND_RESP) && ls->dentry_name) {
+ if (ls->dentry_flags & IS_DIR) {
+ if (ls->flags & PROCESS_DIRS) {
+ ls->userFunc(ls);
+ }
+ if (strcmp(ls->dentry_name, ls->path) &&
+ ls->flags & RECURSIVE) {
+ remote_ls(ls->dentry_name,
+ ls->flags,
+ ls->userFunc,
+ ls->userData);
+ }
+ } else if (ls->flags & PROCESS_FILES) {
+ ls->userFunc(ls);
+ }
+ } else if (!strcmp(ctx->name, DAV_PROPFIND_NAME) && ctx->cdata) {
+ ls->dentry_name = xmalloc(strlen(ctx->cdata) -
+ remote->path_len + 1);
+ strcpy(ls->dentry_name, ctx->cdata + remote->path_len);
+ } else if (!strcmp(ctx->name, DAV_PROPFIND_COLLECTION)) {
+ ls->dentry_flags |= IS_DIR;
+ }
+ } else if (!strcmp(ctx->name, DAV_PROPFIND_RESP)) {
+ if (ls->dentry_name) {
+ free(ls->dentry_name);
+ }
+ ls->dentry_name = NULL;
+ ls->dentry_flags = 0;
+ }
+}
+
+static void remote_ls(const char *path, int flags,
+ void (*userFunc)(struct remote_ls_ctx *ls),
+ void *userData)
+{
+ char *url = xmalloc(strlen(remote->url) + strlen(path) + 1);
+ struct active_request_slot *slot;
+ struct slot_results results;
+ struct buffer in_buffer;
+ struct buffer out_buffer;
+ char *in_data;
+ char *out_data;
+ XML_Parser parser = XML_ParserCreate(NULL);
+ enum XML_Status result;
+ struct curl_slist *dav_headers = NULL;
+ struct xml_ctx ctx;
+ struct remote_ls_ctx ls;
+
+ ls.flags = flags;
+ ls.path = strdup(path);
+ ls.dentry_name = NULL;
+ ls.dentry_flags = 0;
+ ls.userData = userData;
+ ls.userFunc = userFunc;
+
+ sprintf(url, "%s%s", remote->url, path);
+
+ out_buffer.size = strlen(PROPFIND_ALL_REQUEST);
+ out_data = xmalloc(out_buffer.size + 1);
+ snprintf(out_data, out_buffer.size + 1, PROPFIND_ALL_REQUEST);
+ out_buffer.posn = 0;
+ out_buffer.buffer = out_data;
+
+ in_buffer.size = 4096;
+ in_data = xmalloc(in_buffer.size);
+ in_buffer.posn = 0;
+ in_buffer.buffer = in_data;
+
+ dav_headers = curl_slist_append(dav_headers, "Depth: 1");
+ dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
+
+ slot = get_active_slot();
+ slot->results = &results;
+ curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
+ curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size);
+ curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
+ curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
+ curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
+ curl_easy_setopt(slot->curl, CURLOPT_URL, url);
+ curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
+ curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PROPFIND);
+ curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
+
+ if (start_active_slot(slot)) {
+ run_active_slot(slot);
+ if (results.curl_result == CURLE_OK) {
+ ctx.name = xcalloc(10, 1);
+ ctx.len = 0;
+ ctx.cdata = NULL;
+ ctx.userFunc = handle_remote_ls_ctx;
+ ctx.userData = &ls;
+ XML_SetUserData(parser, &ctx);
+ XML_SetElementHandler(parser, xml_start_tag,
+ xml_end_tag);
+ XML_SetCharacterDataHandler(parser, xml_cdata);
+ result = XML_Parse(parser, in_buffer.buffer,
+ in_buffer.posn, 1);
+ free(ctx.name);
+
+ if (result != XML_STATUS_OK) {
+ fprintf(stderr, "XML error: %s\n",
+ XML_ErrorString(
+ XML_GetErrorCode(parser)));
+ }
+ }
+ } else {
+ fprintf(stderr, "Unable to start PROPFIND request\n");
+ }
+
+ free(ls.path);
+ free(url);
+ free(out_data);
+ free(in_buffer.buffer);
+ curl_slist_free_all(dav_headers);
+}
+
+static void get_remote_object_list(unsigned char parent)
+{
+ char path[] = "objects/XX/";
+ static const char hex[] = "0123456789abcdef";
+ unsigned int val = parent;
+
+ path[8] = hex[val >> 4];
+ path[9] = hex[val & 0xf];
+ remote_dir_exists[val] = 0;
+ remote_ls(path, (PROCESS_FILES | PROCESS_DIRS),
+ process_ls_object, &val);
+}
+
static int locking_available(void)
{
struct active_request_slot *slot;
+ struct slot_results results;
struct buffer in_buffer;
struct buffer out_buffer;
char *in_data;
struct xml_ctx ctx;
int lock_flags = 0;
- out_buffer.size = strlen(PROPFIND_REQUEST) + strlen(remote->url) - 2;
+ out_buffer.size =
+ strlen(PROPFIND_SUPPORTEDLOCK_REQUEST) +
+ strlen(remote->url) - 2;
out_data = xmalloc(out_buffer.size + 1);
- snprintf(out_data, out_buffer.size + 1, PROPFIND_REQUEST, remote->url);
+ snprintf(out_data, out_buffer.size + 1,
+ PROPFIND_SUPPORTEDLOCK_REQUEST, remote->url);
out_buffer.posn = 0;
out_buffer.buffer = out_data;
dav_headers = curl_slist_append(dav_headers, "Depth: 0");
dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
-
+
slot = get_active_slot();
+ slot->results = &results;
curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size);
curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
if (start_active_slot(slot)) {
run_active_slot(slot);
- if (slot->curl_result == CURLE_OK) {
+ if (results.curl_result == CURLE_OK) {
ctx.name = xcalloc(10, 1);
ctx.len = 0;
ctx.cdata = NULL;
}
}
} else {
- fprintf(stderr, "Unable to start request\n");
+ fprintf(stderr, "Unable to start PROPFIND request\n");
}
free(out_data);
return lock_flags;
}
-static int is_ancestor(unsigned char *sha1, struct commit *commit)
+static struct object_list **process_blob(struct blob *blob,
+ struct object_list **p,
+ struct name_path *path,
+ const char *name)
{
- struct commit_list *parents;
+ struct object *obj = &blob->object;
- if (parse_commit(commit))
- return 0;
- parents = commit->parents;
- for (; parents; parents = parents->next) {
- if (!memcmp(sha1, parents->item->object.sha1, 20)) {
- return 1;
- } else if (parents->item->object.type == commit_type) {
- if (is_ancestor(
- sha1,
- (struct commit *)&parents->item->object
- ))
- return 1;
- }
- }
- return 0;
+ obj->flags |= LOCAL;
+
+ if (obj->flags & (UNINTERESTING | SEEN))
+ return p;
+
+ obj->flags |= SEEN;
+ return add_object(obj, p, path, name);
}
-static void get_delta(unsigned char *sha1, struct object *obj,
- struct active_lock *lock)
+static struct object_list **process_tree(struct tree *tree,
+ struct object_list **p,
+ struct name_path *path,
+ const char *name)
{
- struct commit *commit;
- struct commit_list *parents;
- struct tree *tree;
+ struct object *obj = &tree->object;
struct tree_entry_list *entry;
+ struct name_path me;
+
+ obj->flags |= LOCAL;
+
+ if (obj->flags & (UNINTERESTING | SEEN))
+ return p;
+ if (parse_tree(tree) < 0)
+ die("bad tree object %s", sha1_to_hex(obj->sha1));
+
+ obj->flags |= SEEN;
+ p = add_object(obj, p, NULL, name);
+ me.up = path;
+ me.elem = name;
+ me.elem_len = strlen(name);
+ entry = tree->entries;
+ tree->entries = NULL;
+ while (entry) {
+ struct tree_entry_list *next = entry->next;
+ if (entry->directory)
+ p = process_tree(entry->item.tree, p, &me, entry->name);
+ else
+ p = process_blob(entry->item.blob, p, &me, entry->name);
+ free(entry);
+ entry = next;
+ }
+ return p;
+}
- if (sha1 && !memcmp(sha1, obj->sha1, 20))
- return;
+static int get_delta(struct rev_info *revs, struct remote_lock *lock)
+{
+ struct commit *commit;
+ struct object_list **p = &objects, *pending;
+ int count = 0;
+
+ while ((commit = get_revision(revs)) != NULL) {
+ p = process_tree(commit->tree, p, NULL, "");
+ commit->object.flags |= LOCAL;
+ if (!(commit->object.flags & UNINTERESTING))
+ count += add_send_request(&commit->object, lock);
+ }
- if (aborted)
- return;
+ for (pending = revs->pending_objects; pending; pending = pending->next) {
+ struct object *obj = pending->item;
+ const char *name = pending->name;
- if (obj->type == commit_type) {
- if (push_verbosely)
- fprintf(stderr, "walk %s\n", sha1_to_hex(obj->sha1));
- add_request(obj->sha1, lock);
- commit = (struct commit *)obj;
- if (parse_commit(commit)) {
- fprintf(stderr, "Error parsing commit %s\n",
- sha1_to_hex(obj->sha1));
- aborted = 1;
- return;
+ if (obj->flags & (UNINTERESTING | SEEN))
+ continue;
+ if (obj->type == tag_type) {
+ obj->flags |= SEEN;
+ p = add_object(obj, p, NULL, name);
+ continue;
}
- parents = commit->parents;
- for (; parents; parents = parents->next)
- if (sha1 == NULL ||
- memcmp(sha1, parents->item->object.sha1, 20))
- get_delta(sha1, &parents->item->object,
- lock);
- get_delta(sha1, &commit->tree->object, lock);
- } else if (obj->type == tree_type) {
- if (push_verbosely)
- fprintf(stderr, "walk %s\n", sha1_to_hex(obj->sha1));
- add_request(obj->sha1, lock);
- tree = (struct tree *)obj;
- if (parse_tree(tree)) {
- fprintf(stderr, "Error parsing tree %s\n",
- sha1_to_hex(obj->sha1));
- aborted = 1;
- return;
+ if (obj->type == tree_type) {
+ p = process_tree((struct tree *)obj, p, NULL, name);
+ continue;
}
- entry = tree->entries;
- tree->entries = NULL;
- while (entry) {
- struct tree_entry_list *next = entry->next;
- get_delta(sha1, entry->item.any, lock);
- free(entry->name);
- free(entry);
- entry = next;
+ if (obj->type == blob_type) {
+ p = process_blob((struct blob *)obj, p, NULL, name);
+ continue;
}
- } else if (obj->type == blob_type || obj->type == tag_type) {
- add_request(obj->sha1, lock);
+ die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
+ }
+
+ while (objects) {
+ if (!(objects->item->flags & UNINTERESTING))
+ count += add_send_request(objects->item, lock);
+ objects = objects->next;
}
+
+ return count;
}
-static int update_remote(unsigned char *sha1, struct active_lock *lock)
+static int update_remote(unsigned char *sha1, struct remote_lock *lock)
{
struct active_request_slot *slot;
+ struct slot_results results;
char *out_data;
char *if_header;
struct buffer out_buffer;
out_buffer.buffer = out_data;
slot = get_active_slot();
+ slot->results = &results;
curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size);
curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
run_active_slot(slot);
free(out_data);
free(if_header);
- if (slot->curl_result != CURLE_OK) {
+ if (results.curl_result != CURLE_OK) {
fprintf(stderr,
"PUT error: curl result=%d, HTTP code=%ld\n",
- slot->curl_result, slot->http_code);
+ results.curl_result, results.http_code);
/* We should attempt recovery? */
return 0;
}
return 1;
}
+static struct ref *local_refs, **local_tail;
+static struct ref *remote_refs, **remote_tail;
+
+static int one_local_ref(const char *refname, const unsigned char *sha1)
+{
+ struct ref *ref;
+ int len = strlen(refname) + 1;
+ ref = xcalloc(1, sizeof(*ref) + len);
+ memcpy(ref->new_sha1, sha1, 20);
+ memcpy(ref->name, refname, len);
+ *local_tail = ref;
+ local_tail = &ref->next;
+ return 0;
+}
+
+static void one_remote_ref(char *refname)
+{
+ struct ref *ref;
+ unsigned char remote_sha1[20];
+ struct object *obj;
+
+ if (fetch_ref(refname, remote_sha1) != 0) {
+ fprintf(stderr,
+ "Unable to fetch ref %s from %s\n",
+ refname, remote->url);
+ return;
+ }
+
+ /*
+ * Fetch a copy of the object if it doesn't exist locally - it
+ * may be required for updating server info later.
+ */
+ if (remote->can_update_info_refs && !has_sha1_file(remote_sha1)) {
+ obj = lookup_unknown_object(remote_sha1);
+ if (obj) {
+ fprintf(stderr, " fetch %s for %s\n",
+ sha1_to_hex(remote_sha1), refname);
+ add_fetch_request(obj);
+ }
+ }
+
+ int len = strlen(refname) + 1;
+ ref = xcalloc(1, sizeof(*ref) + len);
+ memcpy(ref->old_sha1, remote_sha1, 20);
+ memcpy(ref->name, refname, len);
+ *remote_tail = ref;
+ remote_tail = &ref->next;
+}
+
+static void get_local_heads(void)
+{
+ local_tail = &local_refs;
+ for_each_ref(one_local_ref);
+}
+
+static void get_dav_remote_heads(void)
+{
+ remote_tail = &remote_refs;
+ remote_ls("refs/", (PROCESS_FILES | PROCESS_DIRS | RECURSIVE), process_ls_ref, NULL);
+}
+
+static int is_zero_sha1(const unsigned char *sha1)
+{
+ int i;
+
+ for (i = 0; i < 20; i++) {
+ if (*sha1++)
+ return 0;
+ }
+ return 1;
+}
+
+static void unmark_and_free(struct commit_list *list, unsigned int mark)
+{
+ while (list) {
+ struct commit_list *temp = list;
+ temp->item->object.flags &= ~mark;
+ list = temp->next;
+ free(temp);
+ }
+}
+
+static int ref_newer(const unsigned char *new_sha1,
+ const unsigned char *old_sha1)
+{
+ struct object *o;
+ struct commit *old, *new;
+ struct commit_list *list, *used;
+ int found = 0;
+
+ /* Both new and old must be commit-ish and new is descendant of
+ * old. Otherwise we require --force.
+ */
+ o = deref_tag(parse_object(old_sha1), NULL, 0);
+ if (!o || o->type != commit_type)
+ return 0;
+ old = (struct commit *) o;
+
+ o = deref_tag(parse_object(new_sha1), NULL, 0);
+ if (!o || o->type != commit_type)
+ return 0;
+ new = (struct commit *) o;
+
+ if (parse_commit(new) < 0)
+ return 0;
+
+ used = list = NULL;
+ commit_list_insert(new, &list);
+ while (list) {
+ new = pop_most_recent_commit(&list, TMP_MARK);
+ commit_list_insert(new, &used);
+ if (new == old) {
+ found = 1;
+ break;
+ }
+ }
+ unmark_and_free(list, TMP_MARK);
+ unmark_and_free(used, TMP_MARK);
+ return found;
+}
+
+static void mark_edge_parents_uninteresting(struct commit *commit)
+{
+ struct commit_list *parents;
+
+ for (parents = commit->parents; parents; parents = parents->next) {
+ struct commit *parent = parents->item;
+ if (!(parent->object.flags & UNINTERESTING))
+ continue;
+ mark_tree_uninteresting(parent->tree);
+ }
+}
+
+static void mark_edges_uninteresting(struct commit_list *list)
+{
+ for ( ; list; list = list->next) {
+ struct commit *commit = list->item;
+
+ if (commit->object.flags & UNINTERESTING) {
+ mark_tree_uninteresting(commit->tree);
+ continue;
+ }
+ mark_edge_parents_uninteresting(commit);
+ }
+}
+
+static void add_remote_info_ref(struct remote_ls_ctx *ls)
+{
+ struct buffer *buf = (struct buffer *)ls->userData;
+ unsigned char remote_sha1[20];
+ struct object *o;
+ int len;
+ char *ref_info;
+
+ if (fetch_ref(ls->dentry_name, remote_sha1) != 0) {
+ fprintf(stderr,
+ "Unable to fetch ref %s from %s\n",
+ ls->dentry_name, remote->url);
+ aborted = 1;
+ return;
+ }
+
+ o = parse_object(remote_sha1);
+ if (!o) {
+ fprintf(stderr,
+ "Unable to parse object %s for remote ref %s\n",
+ sha1_to_hex(remote_sha1), ls->dentry_name);
+ aborted = 1;
+ return;
+ }
+
+ len = strlen(ls->dentry_name) + 42;
+ ref_info = xcalloc(len + 1, 1);
+ sprintf(ref_info, "%s %s\n",
+ sha1_to_hex(remote_sha1), ls->dentry_name);
+ fwrite_buffer(ref_info, 1, len, buf);
+ free(ref_info);
+
+ if (o->type == tag_type) {
+ o = deref_tag(o, ls->dentry_name, 0);
+ if (o) {
+ len = strlen(ls->dentry_name) + 45;
+ ref_info = xcalloc(len + 1, 1);
+ sprintf(ref_info, "%s %s^{}\n",
+ sha1_to_hex(o->sha1), ls->dentry_name);
+ fwrite_buffer(ref_info, 1, len, buf);
+ free(ref_info);
+ }
+ }
+}
+
+static void update_remote_info_refs(struct remote_lock *lock)
+{
+ struct buffer buffer;
+ struct active_request_slot *slot;
+ struct slot_results results;
+ char *if_header;
+ struct curl_slist *dav_headers = NULL;
+
+ buffer.buffer = xmalloc(4096);
+ memset(buffer.buffer, 0, 4096);
+ buffer.size = 4096;
+ buffer.posn = 0;
+ remote_ls("refs/", (PROCESS_FILES | RECURSIVE),
+ add_remote_info_ref, &buffer);
+ if (!aborted) {
+ if_header = xmalloc(strlen(lock->token) + 25);
+ sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
+ dav_headers = curl_slist_append(dav_headers, if_header);
+
+ slot = get_active_slot();
+ slot->results = &results;
+ curl_easy_setopt(slot->curl, CURLOPT_INFILE, &buffer);
+ curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, buffer.posn);
+ curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
+ curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
+ curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
+ curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
+ curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
+ curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
+ curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
+
+ buffer.posn = 0;
+
+ if (start_active_slot(slot)) {
+ run_active_slot(slot);
+ if (results.curl_result != CURLE_OK) {
+ fprintf(stderr,
+ "PUT error: curl result=%d, HTTP code=%ld\n",
+ results.curl_result, results.http_code);
+ }
+ }
+ free(if_header);
+ }
+ free(buffer.buffer);
+}
+
+static int remote_exists(const char *path)
+{
+ char *url = xmalloc(strlen(remote->url) + strlen(path) + 1);
+ struct active_request_slot *slot;
+ struct slot_results results;
+
+ sprintf(url, "%s%s", remote->url, path);
+
+ slot = get_active_slot();
+ slot->results = &results;
+ curl_easy_setopt(slot->curl, CURLOPT_URL, url);
+ curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
+
+ if (start_active_slot(slot)) {
+ run_active_slot(slot);
+ if (results.http_code == 404)
+ return 0;
+ else if (results.curl_result == CURLE_OK)
+ return 1;
+ else
+ fprintf(stderr, "HEAD HTTP error %ld\n", results.http_code);
+ } else {
+ fprintf(stderr, "Unable to start HEAD request\n");
+ }
+
+ return -1;
+}
+
int main(int argc, char **argv)
{
struct transfer_request *request;
struct transfer_request *next_request;
int nr_refspec = 0;
char **refspec = NULL;
- int do_remote_update;
- int new_branch;
- int force_this;
- char *local_ref;
- unsigned char local_sha1[20];
- struct object *local_object = NULL;
- char *remote_ref = NULL;
- unsigned char remote_sha1[20];
- struct active_lock *remote_lock;
- char *remote_path = NULL;
+ struct remote_lock *ref_lock = NULL;
+ struct remote_lock *info_ref_lock = NULL;
+ struct rev_info revs;
+ int objects_to_send;
int rc = 0;
int i;
+ setup_git_directory();
setup_ident();
- remote = xmalloc(sizeof(*remote));
- remote->url = NULL;
- remote->packs = NULL;
+ remote = xcalloc(sizeof(*remote), 1);
argv++;
for (i = 1; i < argc; i++, argv++) {
char *arg = *argv;
if (*arg == '-') {
- if (!strcmp(arg, "--complete")) {
+ if (!strcmp(arg, "--all")) {
push_all = 1;
continue;
}
}
if (!remote->url) {
remote->url = arg;
+ char *path = strstr(arg, "//");
+ if (path) {
+ path = index(path+2, '/');
+ if (path)
+ remote->path_len = strlen(path);
+ }
continue;
}
refspec = argv;
if (!remote->url)
usage(http_push_usage);
- memset(remote_dir_exists, 0, 256);
+ memset(remote_dir_exists, -1, 256);
http_init();
goto cleanup;
}
- /* Process each refspec */
- for (i = 0; i < nr_refspec; i++) {
- char *ep;
- force_this = 0;
- do_remote_update = 0;
- new_branch = 0;
- local_ref = refspec[i];
- if (*local_ref == '+') {
- force_this = 1;
- local_ref++;
+ /* Check whether the remote has server info files */
+ remote->can_update_info_refs = 0;
+ remote->has_info_refs = remote_exists("info/refs");
+ remote->has_info_packs = remote_exists("objects/info/packs");
+ if (remote->has_info_refs) {
+ info_ref_lock = lock_remote("info/refs", LOCK_TIME);
+ if (info_ref_lock)
+ remote->can_update_info_refs = 1;
+ }
+ if (remote->has_info_packs)
+ fetch_indices();
+
+ /* Get a list of all local and remote heads to validate refspecs */
+ get_local_heads();
+ fprintf(stderr, "Fetching remote heads...\n");
+ get_dav_remote_heads();
+
+ /* match them up */
+ if (!remote_tail)
+ remote_tail = &remote_refs;
+ if (match_refs(local_refs, remote_refs, &remote_tail,
+ nr_refspec, refspec, push_all))
+ return -1;
+ if (!remote_refs) {
+ fprintf(stderr, "No refs in common and none specified; doing nothing.\n");
+ return 0;
+ }
+
+ int new_refs = 0;
+ struct ref *ref;
+ for (ref = remote_refs; ref; ref = ref->next) {
+ char old_hex[60], *new_hex;
+ if (!ref->peer_ref)
+ continue;
+ if (!memcmp(ref->old_sha1, ref->peer_ref->new_sha1, 20)) {
+ if (push_verbosely || 1)
+ fprintf(stderr, "'%s': up-to-date\n", ref->name);
+ continue;
}
- ep = strchr(local_ref, ':');
- if (ep) {
- remote_ref = ep + 1;
- *ep = 0;
+
+ if (!force_all &&
+ !is_zero_sha1(ref->old_sha1) &&
+ !ref->force) {
+ if (!has_sha1_file(ref->old_sha1) ||
+ !ref_newer(ref->peer_ref->new_sha1,
+ ref->old_sha1)) {
+ /* We do not have the remote ref, or
+ * we know that the remote ref is not
+ * an ancestor of what we are trying to
+ * push. Either way this can be losing
+ * commits at the remote end and likely
+ * we were not up to date to begin with.
+ */
+ error("remote '%s' is not a strict "
+ "subset of local ref '%s'. "
+ "maybe you are not up-to-date and "
+ "need to pull first?",
+ ref->name,
+ ref->peer_ref->name);
+ rc = -2;
+ continue;
+ }
}
- else
- remote_ref = local_ref;
+ memcpy(ref->new_sha1, ref->peer_ref->new_sha1, 20);
+ if (is_zero_sha1(ref->new_sha1)) {
+ error("cannot happen anymore");
+ rc = -3;
+ continue;
+ }
+ new_refs++;
+ strcpy(old_hex, sha1_to_hex(ref->old_sha1));
+ new_hex = sha1_to_hex(ref->new_sha1);
+
+ fprintf(stderr, "updating '%s'", ref->name);
+ if (strcmp(ref->name, ref->peer_ref->name))
+ fprintf(stderr, " using '%s'", ref->peer_ref->name);
+ fprintf(stderr, "\n from %s\n to %s\n", old_hex, new_hex);
+
/* Lock remote branch ref */
- if (remote_path)
- free(remote_path);
- remote_path = xmalloc(strlen(remote_ref) + 12);
- sprintf(remote_path, "refs/heads/%s", remote_ref);
- remote_lock = lock_remote(remote_path, LOCK_TIME);
- if (remote_lock == NULL) {
+ ref_lock = lock_remote(ref->name, LOCK_TIME);
+ if (ref_lock == NULL) {
fprintf(stderr, "Unable to lock remote branch %s\n",
- remote_ref);
+ ref->name);
rc = 1;
continue;
}
- /* Resolve local and remote refs */
- if (fetch_ref(remote_ref, remote_sha1) != 0) {
- fprintf(stderr,
- "Remote branch %s does not exist on %s\n",
- remote_ref, remote->url);
- new_branch = 1;
- }
- if (get_sha1(local_ref, local_sha1) != 0) {
- fprintf(stderr, "Error resolving local branch %s\n",
- local_ref);
- rc = 1;
- goto unlock;
+ /* Set up revision info for this refspec */
+ const char *commit_argv[4];
+ int commit_argc = 3;
+ char *new_sha1_hex = strdup(sha1_to_hex(ref->new_sha1));
+ char *old_sha1_hex = NULL;
+ commit_argv[1] = "--objects";
+ commit_argv[2] = new_sha1_hex;
+ if (!push_all && !is_zero_sha1(ref->old_sha1)) {
+ old_sha1_hex = xmalloc(42);
+ sprintf(old_sha1_hex, "^%s",
+ sha1_to_hex(ref->old_sha1));
+ commit_argv[3] = old_sha1_hex;
+ commit_argc++;
}
-
- /* Find relationship between local and remote */
- local_object = parse_object(local_sha1);
- if (!local_object) {
- fprintf(stderr, "Unable to parse local object %s\n",
- sha1_to_hex(local_sha1));
- rc = 1;
- goto unlock;
- } else if (new_branch) {
- do_remote_update = 1;
- } else {
- if (!memcmp(local_sha1, remote_sha1, 20)) {
- fprintf(stderr,
- "* %s: same as branch '%s' of %s\n",
- local_ref, remote_ref, remote->url);
- } else if (is_ancestor(remote_sha1,
- (struct commit *)local_object)) {
- fprintf(stderr,
- "Remote %s will fast-forward to local %s\n",
- remote_ref, local_ref);
- do_remote_update = 1;
- } else if (force_all || force_this) {
- fprintf(stderr,
- "* %s on %s does not fast forward to local branch '%s', overwriting\n",
- remote_ref, remote->url, local_ref);
- do_remote_update = 1;
- } else {
- fprintf(stderr,
- "* %s on %s does not fast forward to local branch '%s'\n",
- remote_ref, remote->url, local_ref);
- rc = 1;
- goto unlock;
- }
+ setup_revisions(commit_argc, commit_argv, &revs, NULL);
+ free(new_sha1_hex);
+ if (old_sha1_hex) {
+ free(old_sha1_hex);
+ commit_argv[1] = NULL;
}
- /* Generate and check list of required objects */
+ /* Generate a list of objects that need to be pushed */
pushing = 0;
- if (do_remote_update || push_all)
- fetch_indices();
- get_delta(push_all ? NULL : remote_sha1,
- local_object, remote_lock);
+ prepare_revision_walk(&revs);
+ mark_edges_uninteresting(revs.commits);
+ objects_to_send = get_delta(&revs, ref_lock);
finish_all_active_slots();
/* Push missing objects to remote, this would be a
convenient time to pack them first if appropriate. */
pushing = 1;
+ if (objects_to_send)
+ fprintf(stderr, " sending %d objects\n",
+ objects_to_send);
fill_active_slots();
finish_all_active_slots();
/* Update the remote branch if all went well */
- if (do_remote_update) {
- if (!aborted && update_remote(local_sha1,
- remote_lock)) {
- fprintf(stderr, "%s remote branch %s\n",
- new_branch ? "Created" : "Updated",
- remote_ref);
- } else {
- fprintf(stderr,
- "Unable to %s remote branch %s\n",
- new_branch ? "create" : "update",
- remote_ref);
- rc = 1;
- goto unlock;
- }
+ if (aborted || !update_remote(ref->new_sha1, ref_lock)) {
+ rc = 1;
+ goto unlock;
}
unlock:
- unlock_remote(remote_lock);
- free(remote_path);
+ if (!rc)
+ fprintf(stderr, " done\n");
+ unlock_remote(ref_lock);
+ check_locks();
+ }
+
+ /* Update remote server info if appropriate */
+ if (remote->has_info_refs && new_refs) {
+ if (info_ref_lock && remote->can_update_info_refs) {
+ fprintf(stderr, "Updating remote server info\n");
+ update_remote_info_refs(info_ref_lock);
+ } else {
+ fprintf(stderr, "Unable to update server info\n");
+ }
}
+ if (info_ref_lock)
+ unlock_remote(info_ref_lock);
cleanup:
free(remote);