#include "blob.h"
#include "http.h"
#include "refs.h"
+#include "diff.h"
#include "revision.h"
+#include "exec_cmd.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_PROPFIND "PROPFIND"
#define DAV_PUT "PUT"
#define DAV_UNLOCK "UNLOCK"
+#define DAV_DELETE "DELETE"
/* DAV lock flags */
#define DAV_PROP_LOCKWR (1u << 0)
#define LOCK_TIME 600
#define LOCK_REFRESH 30
-/* bits #0-4 in revision.h */
+/* bits #0-15 in revision.h */
-#define LOCAL (1u << 5)
-#define REMOTE (1u << 6)
-#define PUSHING (1u << 7)
+#define LOCAL (1u<<16)
+#define REMOTE (1u<<17)
+#define FETCHING (1u<<18)
+#define PUSHING (1u<<19)
+
+/* We allow "recursive" symbolic refs. Only within reason, though */
+#define MAXDEPTH 5
static int pushing = 0;
static int aborted = 0;
-static char remote_dir_exists[256];
+static signed char remote_dir_exists[256];
static struct curl_slist *no_pragma_header;
static struct curl_slist *default_headers;
{
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;
-static struct remote_lock *remote_locks = NULL;
enum transfer_state {
+ NEED_FETCH,
+ RUN_FETCH_LOOSE,
+ RUN_FETCH_PACKED,
NEED_PUSH,
RUN_MKCOL,
RUN_PUT,
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;
};
char *token;
time_t start_time;
long timeout;
- int active;
int refreshing;
struct remote_lock *next;
};
};
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 size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
+ void *data)
+{
+ 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;
+
+ 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, url);
+ curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
+
+ /* 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->obj->sha1);
}
}
-static int refresh_lock(struct remote_lock *check_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;
- struct remote_lock *lock;
- int time_remaining;
- time_t current_time;
+ int rc = 0;
- /* Refresh all active locks if they're close to expiring */
- for (lock = remote_locks; lock; lock = lock->next) {
- if (!lock->active)
- continue;
+ lock->refreshing = 1;
- current_time = time(NULL);
- time_remaining = lock->start_time + lock->timeout
- - current_time;
- if (time_remaining > LOCK_REFRESH)
- continue;
+ if_header = xmalloc(strlen(lock->token) + 25);
+ sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
+ sprintf(timeout_header, "Timeout: Second-%ld", lock->timeout);
+ dav_headers = curl_slist_append(dav_headers, if_header);
+ dav_headers = curl_slist_append(dav_headers, timeout_header);
- lock->refreshing = 1;
+ 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);
+ curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK);
+ curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
- if_header = xmalloc(strlen(lock->token) + 25);
- sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
- sprintf(timeout_header, "Timeout: Second-%ld", lock->timeout);
- dav_headers = curl_slist_append(dav_headers, if_header);
- dav_headers = curl_slist_append(dav_headers, timeout_header);
+ if (start_active_slot(slot)) {
+ run_active_slot(slot);
+ if (results.curl_result != CURLE_OK) {
+ fprintf(stderr, "LOCK HTTP error %ld\n",
+ results.http_code);
+ } else {
+ lock->start_time = time(NULL);
+ rc = 1;
+ }
+ }
- 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);
- curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK);
- curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
+ lock->refreshing = 0;
+ curl_slist_free_all(dav_headers);
+ free(if_header);
- if (start_active_slot(slot)) {
- run_active_slot(slot);
- if (results.curl_result != CURLE_OK) {
- fprintf(stderr, "Got HTTP error %ld\n", results.http_code);
- lock->active = 0;
- } else {
- lock->active = 1;
- lock->start_time = time(NULL);
+ return rc;
+}
+
+static void check_locks(void)
+{
+ struct remote_lock *lock = remote->locks;
+ time_t current_time = time(NULL);
+ int time_remaining;
+
+ 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->refreshing = 0;
- curl_slist_free_all(dav_headers);
- free(if_header);
+ lock = lock->next;
}
-
- if (check_lock)
- return check_lock->active;
- else
- return 0;
}
static void release_request(struct transfer_request *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)
{
- request->curl_result = request->slot->curl_result;
+ 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;
/* Keep locks active */
- refresh_lock(request->lock);
+ check_locks();
if (request->headers != NULL)
curl_slist_free_all(request->headers);
}
} else if (request->state == RUN_MOVE) {
if (request->curl_result == CURLE_OK) {
- fprintf(stderr, " sent %s\n",
- sha1_to_hex(request->obj->sha1));
- request->state = COMPLETE;
+ if (push_verbosely)
+ fprintf(stderr, " sent %s\n",
+ sha1_to_hex(request->obj->sha1));
request->obj->flags |= REMOTE;
release_request(request);
} else {
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);
+ }
+ }
+ }
+
+ /* Try fetching packed if necessary */
+ if (request->obj->flags & LOCAL)
+ release_request(request);
+ else
+ start_fetch_packed(request);
+
+ } 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);
}
}
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_PUSH) {
+ next = request->next;
+ if (request->state == NEED_FETCH) {
+ start_fetch_loose(request);
+ } else if (pushing && request->state == NEED_PUSH) {
if (remote_dir_exists[request->obj->sha1[0]] == 1) {
start_put(request);
} else {
}
curl_multi_perform(curlm, &num_transfers);
}
- request = request->next;
+ request = next;
}
while (slot != NULL) {
static void get_remote_object_list(unsigned char parent);
-static void add_request(struct object *obj, struct remote_lock *lock)
+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;
+ /* 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;
+ return 0;
target = find_sha1_pack(obj->sha1, remote->packs);
if (target) {
obj->flags |= REMOTE;
- return;
+ return 0;
}
obj->flags |= PUSHING;
request->url = NULL;
request->lock = lock;
request->headers = NULL;
+ 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)
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);
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");
struct active_request_slot *slot;
struct slot_results results;
- data = xmalloc(4096);
- memset(data, 0, 4096);
+ data = xcalloc(1, 4096);
buffer.size = 4096;
buffer.posn = 0;
buffer.buffer = data;
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;
xml_start_tag(void *userData, const char *name, const char **atts)
{
struct xml_ctx *ctx = (struct xml_ctx *)userData;
- const char *c = index(name, ':');
+ const char *c = strchr(name, ':');
int new_len;
if (c == NULL)
xml_end_tag(void *userData, const char *name)
{
struct xml_ctx *ctx = (struct xml_ctx *)userData;
- const char *c = index(name, ':');
+ const char *c = strchr(name, ':');
char *ep;
ctx->userFunc(ctx, 1);
char *url;
char *ep;
char timeout_header[25];
- struct remote_lock *lock = remote_locks;
+ struct remote_lock *lock = NULL;
XML_Parser parser = XML_ParserCreate(NULL);
enum XML_Status result;
struct curl_slist *dav_headers = NULL;
url = xmalloc(strlen(remote->url) + strlen(path) + 1);
sprintf(url, "%s%s", remote->url, path);
- /* Make sure the url is not already locked */
- while (lock && strcmp(lock->url, url)) {
- lock = lock->next;
- }
- if (lock) {
- free(url);
- if (refresh_lock(lock))
- return lock;
- else
- return NULL;
- }
-
/* Make sure leading directories exist for the remote ref */
ep = strchr(url + strlen(remote->url) + 11, '/');
while (ep) {
return NULL;
}
} else {
- fprintf(stderr, "Unable to start request\n");
+ fprintf(stderr, "Unable to start MKCOL request\n");
free(url);
return NULL;
}
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
lock = xcalloc(1, sizeof(*lock));
- lock->owner = NULL;
- lock->token = NULL;
lock->timeout = -1;
- lock->refreshing = 0;
if (start_active_slot(slot)) {
run_active_slot(slot);
}
}
} else {
- fprintf(stderr, "Unable to start request\n");
+ fprintf(stderr, "Unable to start LOCK request\n");
}
curl_slist_free_all(dav_headers);
lock = NULL;
} else {
lock->url = url;
- lock->active = 1;
lock->start_time = time(NULL);
- lock->next = remote_locks;
- remote_locks = lock;
+ lock->next = remote->locks;
+ remote->locks = lock;
}
return 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;
if (results.curl_result == CURLE_OK)
rc = 1;
else
- fprintf(stderr, "Got HTTP error %ld\n",
+ 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);
- lock->active = 0;
+ 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);
+ free(lock->token);
+ free(lock);
return rc;
}
}
}
} else {
- fprintf(stderr, "Unable to start request\n");
+ fprintf(stderr, "Unable to start PROPFIND request\n");
}
free(out_data);
return p;
obj->flags |= SEEN;
+ name = strdup(name);
return add_object(obj, p, path, name);
}
const char *name)
{
struct object *obj = &tree->object;
- struct tree_entry_list *entry;
+ struct tree_desc desc;
+ struct name_entry entry;
struct name_path me;
obj->flags |= LOCAL;
die("bad tree object %s", sha1_to_hex(obj->sha1));
obj->flags |= SEEN;
+ name = strdup(name);
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);
+
+ desc.buf = tree->buffer;
+ desc.size = tree->size;
+
+ while (tree_entry(&desc, &entry)) {
+ if (S_ISDIR(entry.mode))
+ p = process_tree(lookup_tree(entry.sha1), p, &me, name);
else
- p = process_blob(entry->item.blob, p, &me, entry->name);
- free(entry);
- entry = next;
+ p = process_blob(lookup_blob(entry.sha1), p, &me, name);
}
+ free(tree->buffer);
+ tree->buffer = NULL;
return p;
}
-static void get_delta(struct rev_info *revs, struct remote_lock *lock)
+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))
- add_request(&commit->object, lock);
+ count += add_send_request(&commit->object, lock);
}
for (pending = revs->pending_objects; pending; pending = pending->next) {
while (objects) {
if (!(objects->item->flags & UNINTERESTING))
- add_request(objects->item, lock);
+ count += add_send_request(objects->item, lock);
objects = objects->next;
}
+
+ return count;
}
static int update_remote(unsigned char *sha1, struct remote_lock *lock)
{
struct ref *ref;
unsigned char remote_sha1[20];
+ struct object *obj;
+ int len = strlen(refname) + 1;
if (fetch_ref(refname, remote_sha1) != 0) {
fprintf(stderr,
return;
}
- int len = strlen(refname) + 1;
+ /*
+ * 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);
+ }
+ }
+
ref = xcalloc(1, sizeof(*ref) + len);
memcpy(ref->old_sha1, remote_sha1, 20);
memcpy(ref->name, refname, len);
}
}
+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 = xcalloc(1, 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;
+}
+
+static void fetch_symref(char *path, char **symref, unsigned char *sha1)
+{
+ char *url;
+ struct buffer buffer;
+ struct active_request_slot *slot;
+ struct slot_results results;
+
+ url = xmalloc(strlen(remote->url) + strlen(path) + 1);
+ sprintf(url, "%s%s", remote->url, path);
+
+ buffer.size = 4096;
+ buffer.posn = 0;
+ buffer.buffer = xmalloc(buffer.size);
+
+ 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 (results.curl_result != CURLE_OK) {
+ die("Couldn't get %s for remote symref\n%s",
+ url, curl_errorstr);
+ }
+ } else {
+ die("Unable to start remote symref request");
+ }
+ free(url);
+
+ if (*symref != NULL)
+ free(*symref);
+ *symref = NULL;
+ memset(sha1, 0, 20);
+
+ if (buffer.posn == 0)
+ return;
+
+ /* If it's a symref, set the refname; otherwise try for a sha1 */
+ if (!strncmp((char *)buffer.buffer, "ref: ", 5)) {
+ *symref = xcalloc(buffer.posn - 5, 1);
+ strncpy(*symref, (char *)buffer.buffer + 5, buffer.posn - 6);
+ } else {
+ get_sha1_hex(buffer.buffer, sha1);
+ }
+
+ free(buffer.buffer);
+}
+
+static int verify_merge_base(unsigned char *head_sha1, unsigned char *branch_sha1)
+{
+ int pipe_fd[2];
+ pid_t merge_base_pid;
+ char line[PATH_MAX + 20];
+ unsigned char merge_sha1[20];
+ int verified = 0;
+
+ if (pipe(pipe_fd) < 0)
+ die("Verify merge base: pipe failed");
+
+ merge_base_pid = fork();
+ if (!merge_base_pid) {
+ static const char *args[] = {
+ "merge-base",
+ "-a",
+ NULL,
+ NULL,
+ NULL
+ };
+ args[2] = strdup(sha1_to_hex(head_sha1));
+ args[3] = sha1_to_hex(branch_sha1);
+
+ dup2(pipe_fd[1], 1);
+ close(pipe_fd[0]);
+ close(pipe_fd[1]);
+ execv_git_cmd(args);
+ die("merge-base setup failed");
+ }
+ if (merge_base_pid < 0)
+ die("merge-base fork failed");
+
+ dup2(pipe_fd[0], 0);
+ close(pipe_fd[0]);
+ close(pipe_fd[1]);
+ while (fgets(line, sizeof(line), stdin) != NULL) {
+ if (get_sha1_hex(line, merge_sha1))
+ die("expected sha1, got garbage:\n %s", line);
+ if (!memcmp(branch_sha1, merge_sha1, 20)) {
+ verified = 1;
+ break;
+ }
+ }
+
+ return verified;
+}
+
+static int delete_remote_branch(char *pattern, int force)
+{
+ struct ref *refs = remote_refs;
+ struct ref *remote_ref = NULL;
+ unsigned char head_sha1[20];
+ char *symref = NULL;
+ int match;
+ int patlen = strlen(pattern);
+ int i;
+ struct active_request_slot *slot;
+ struct slot_results results;
+ char *url;
+
+ /* Find the remote branch(es) matching the specified branch name */
+ for (match = 0; refs; refs = refs->next) {
+ char *name = refs->name;
+ int namelen = strlen(name);
+ if (namelen < patlen ||
+ memcmp(name + namelen - patlen, pattern, patlen))
+ continue;
+ if (namelen != patlen && name[namelen - patlen - 1] != '/')
+ continue;
+ match++;
+ remote_ref = refs;
+ }
+ if (match == 0)
+ return error("No remote branch matches %s", pattern);
+ if (match != 1)
+ return error("More than one remote branch matches %s",
+ pattern);
+
+ /*
+ * Remote HEAD must be a symref (not exactly foolproof; a remote
+ * symlink to a symref will look like a symref)
+ */
+ fetch_symref("HEAD", &symref, head_sha1);
+ if (!symref)
+ return error("Remote HEAD is not a symref");
+
+ /* Remote branch must not be the remote HEAD */
+ for (i=0; symref && i<MAXDEPTH; i++) {
+ if (!strcmp(remote_ref->name, symref))
+ return error("Remote branch %s is the current HEAD",
+ remote_ref->name);
+ fetch_symref(symref, &symref, head_sha1);
+ }
+
+ /* Run extra sanity checks if delete is not forced */
+ if (!force) {
+ /* Remote HEAD must resolve to a known object */
+ if (symref)
+ return error("Remote HEAD symrefs too deep");
+ if (is_zero_sha1(head_sha1))
+ return error("Unable to resolve remote HEAD");
+ if (!has_sha1_file(head_sha1))
+ return error("Remote HEAD resolves to object %s\nwhich does not exist locally, perhaps you need to fetch?", sha1_to_hex(head_sha1));
+
+ /* Remote branch must resolve to a known object */
+ if (is_zero_sha1(remote_ref->old_sha1))
+ return error("Unable to resolve remote branch %s",
+ remote_ref->name);
+ if (!has_sha1_file(remote_ref->old_sha1))
+ return error("Remote branch %s resolves to object %s\nwhich does not exist locally, perhaps you need to fetch?", remote_ref->name, sha1_to_hex(remote_ref->old_sha1));
+
+ /* Remote branch must be an ancestor of remote HEAD */
+ if (!verify_merge_base(head_sha1, remote_ref->old_sha1)) {
+ return error("The branch '%s' is not a strict subset of your current HEAD.\nIf you are sure you want to delete it, run:\n\t'git http-push -D %s %s'", remote_ref->name, remote->url, pattern);
+ }
+ }
+
+ /* Send delete request */
+ fprintf(stderr, "Removing remote branch '%s'\n", remote_ref->name);
+ url = xmalloc(strlen(remote->url) + strlen(remote_ref->name) + 1);
+ sprintf(url, "%s%s", remote->url, remote_ref->name);
+ 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, url);
+ curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_DELETE);
+ if (start_active_slot(slot)) {
+ run_active_slot(slot);
+ free(url);
+ if (results.curl_result != CURLE_OK)
+ return error("DELETE request failed (%d/%ld)\n",
+ results.curl_result, results.http_code);
+ } else {
+ free(url);
+ return error("Unable to start DELETE request");
+ }
+
+ return 0;
+}
+
int main(int argc, char **argv)
{
struct transfer_request *request;
struct transfer_request *next_request;
int nr_refspec = 0;
char **refspec = NULL;
- struct remote_lock *ref_lock;
+ struct remote_lock *ref_lock = NULL;
+ struct remote_lock *info_ref_lock = NULL;
struct rev_info revs;
+ int delete_branch = 0;
+ int force_delete = 0;
+ int objects_to_send;
int rc = 0;
int i;
+ int new_refs;
+ struct ref *ref;
setup_git_directory();
setup_ident();
- remote = xmalloc(sizeof(*remote));
- remote->url = NULL;
- remote->path_len = 0;
- remote->packs = NULL;
+ remote = xcalloc(sizeof(*remote), 1);
argv++;
for (i = 1; i < argc; i++, argv++) {
push_verbosely = 1;
continue;
}
- usage(http_push_usage);
+ if (!strcmp(arg, "-d")) {
+ delete_branch = 1;
+ continue;
+ }
+ if (!strcmp(arg, "-D")) {
+ delete_branch = 1;
+ force_delete = 1;
+ continue;
+ }
}
if (!remote->url) {
- remote->url = arg;
char *path = strstr(arg, "//");
+ remote->url = arg;
if (path) {
- path = index(path+2, '/');
+ path = strchr(path+2, '/');
if (path)
remote->path_len = strlen(path);
}
if (!remote->url)
usage(http_push_usage);
+ if (delete_branch && nr_refspec != 1)
+ die("You must specify only one branch name when deleting a remote branch");
+
memset(remote_dir_exists, -1, 256);
http_init();
goto cleanup;
}
+ /* 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();
+ /* Remove a remote branch if -d or -D was specified */
+ if (delete_branch) {
+ if (delete_remote_branch(refspec[0], force_delete) == -1)
+ fprintf(stderr, "Unable to delete remote branch %s\n",
+ refspec[0]);
+ goto cleanup;
+ }
+
/* match them up */
if (!remote_tail)
remote_tail = &remote_refs;
return 0;
}
- int ret = 0;
- int new_refs = 0;
- struct ref *ref;
+ new_refs = 0;
for (ref = remote_refs; ref; ref = ref->next) {
char old_hex[60], *new_hex;
+ const char *commit_argv[4];
+ int commit_argc;
+ char *new_sha1_hex, *old_sha1_hex;
+
if (!ref->peer_ref)
continue;
if (!memcmp(ref->old_sha1, ref->peer_ref->new_sha1, 20)) {
"need to pull first?",
ref->name,
ref->peer_ref->name);
- ret = -2;
+ rc = -2;
continue;
}
}
memcpy(ref->new_sha1, ref->peer_ref->new_sha1, 20);
if (is_zero_sha1(ref->new_sha1)) {
error("cannot happen anymore");
- ret = -3;
+ rc = -3;
continue;
}
new_refs++;
}
/* 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_argc = 3;
+ new_sha1_hex = strdup(sha1_to_hex(ref->new_sha1));
+ old_sha1_hex = NULL;
commit_argv[1] = "--objects";
commit_argv[2] = new_sha1_hex;
if (!push_all && !is_zero_sha1(ref->old_sha1)) {
commit_argv[3] = old_sha1_hex;
commit_argc++;
}
+ init_revisions(&revs);
setup_revisions(commit_argc, commit_argv, &revs, NULL);
free(new_sha1_hex);
if (old_sha1_hex) {
pushing = 0;
prepare_revision_walk(&revs);
mark_edges_uninteresting(revs.commits);
- fetch_indices();
- get_delta(&revs, ref_lock);
+ 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();
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);
projects / git.git / blobdiff