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1428 lines
36 KiB
1428 lines
36 KiB
#include "cache.h" |
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#include "commit.h" |
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#include "pack.h" |
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#include "fetch.h" |
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#include "tag.h" |
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#include "blob.h" |
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#include "http.h" |
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|
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#include <expat.h> |
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|
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static const char http_push_usage[] = |
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"git-http-push [--complete] [--force] [--verbose] <url> <ref> [<ref>...]\n"; |
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|
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#ifndef XML_STATUS_OK |
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enum XML_Status { |
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XML_STATUS_OK = 1, |
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XML_STATUS_ERROR = 0 |
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}; |
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#define XML_STATUS_OK 1 |
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#define XML_STATUS_ERROR 0 |
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#endif |
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|
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#define RANGE_HEADER_SIZE 30 |
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|
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/* DAV methods */ |
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#define DAV_LOCK "LOCK" |
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#define DAV_MKCOL "MKCOL" |
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#define DAV_MOVE "MOVE" |
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#define DAV_PROPFIND "PROPFIND" |
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#define DAV_PUT "PUT" |
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#define DAV_UNLOCK "UNLOCK" |
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|
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/* DAV lock flags */ |
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#define DAV_PROP_LOCKWR (1u << 0) |
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#define DAV_PROP_LOCKEX (1u << 1) |
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#define DAV_LOCK_OK (1u << 2) |
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|
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/* DAV XML properties */ |
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#define DAV_CTX_LOCKENTRY ".multistatus.response.propstat.prop.supportedlock.lockentry" |
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#define DAV_CTX_LOCKTYPE_WRITE ".multistatus.response.propstat.prop.supportedlock.lockentry.locktype.write" |
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#define DAV_CTX_LOCKTYPE_EXCLUSIVE ".multistatus.response.propstat.prop.supportedlock.lockentry.lockscope.exclusive" |
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#define DAV_ACTIVELOCK_OWNER ".prop.lockdiscovery.activelock.owner.href" |
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#define DAV_ACTIVELOCK_TIMEOUT ".prop.lockdiscovery.activelock.timeout" |
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#define DAV_ACTIVELOCK_TOKEN ".prop.lockdiscovery.activelock.locktoken.href" |
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|
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/* DAV request body templates */ |
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#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>" |
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#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>" |
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|
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#define LOCK_TIME 600 |
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#define LOCK_REFRESH 30 |
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|
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static int pushing = 0; |
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static int aborted = 0; |
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static char remote_dir_exists[256]; |
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|
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static struct curl_slist *no_pragma_header; |
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static struct curl_slist *default_headers; |
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|
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static int push_verbosely = 0; |
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static int push_all = 0; |
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static int force_all = 0; |
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|
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struct repo |
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{ |
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char *url; |
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struct packed_git *packs; |
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}; |
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|
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static struct repo *remote = NULL; |
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|
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enum transfer_state { |
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NEED_CHECK, |
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RUN_HEAD, |
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NEED_PUSH, |
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RUN_MKCOL, |
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RUN_PUT, |
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RUN_MOVE, |
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ABORTED, |
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COMPLETE, |
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}; |
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|
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struct transfer_request |
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{ |
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unsigned char sha1[20]; |
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char *url; |
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char *dest; |
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struct active_lock *lock; |
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struct curl_slist *headers; |
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struct buffer buffer; |
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char filename[PATH_MAX]; |
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char tmpfile[PATH_MAX]; |
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enum transfer_state state; |
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CURLcode curl_result; |
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char errorstr[CURL_ERROR_SIZE]; |
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long http_code; |
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unsigned char real_sha1[20]; |
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SHA_CTX c; |
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z_stream stream; |
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int zret; |
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int rename; |
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struct active_request_slot *slot; |
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struct transfer_request *next; |
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}; |
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|
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static struct transfer_request *request_queue_head = NULL; |
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|
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struct xml_ctx |
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{ |
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char *name; |
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int len; |
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char *cdata; |
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void (*userFunc)(struct xml_ctx *ctx, int tag_closed); |
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void *userData; |
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}; |
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|
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struct active_lock |
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{ |
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char *url; |
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char *owner; |
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char *token; |
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time_t start_time; |
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long timeout; |
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int refreshing; |
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}; |
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|
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static void finish_request(struct transfer_request *request); |
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|
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static void process_response(void *callback_data) |
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{ |
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struct transfer_request *request = |
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(struct transfer_request *)callback_data; |
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|
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finish_request(request); |
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} |
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|
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static void start_check(struct transfer_request *request) |
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{ |
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char *hex = sha1_to_hex(request->sha1); |
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struct active_request_slot *slot; |
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char *posn; |
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|
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request->url = xmalloc(strlen(remote->url) + 55); |
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strcpy(request->url, remote->url); |
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posn = request->url + strlen(remote->url); |
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strcpy(posn, "objects/"); |
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posn += 8; |
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memcpy(posn, hex, 2); |
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posn += 2; |
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*(posn++) = '/'; |
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strcpy(posn, hex + 2); |
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|
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slot = get_active_slot(); |
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slot->callback_func = process_response; |
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slot->callback_data = request; |
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curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr); |
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curl_easy_setopt(slot->curl, CURLOPT_URL, request->url); |
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curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); |
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|
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if (start_active_slot(slot)) { |
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request->slot = slot; |
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request->state = RUN_HEAD; |
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} else { |
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request->state = ABORTED; |
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free(request->url); |
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request->url = NULL; |
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} |
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} |
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|
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static void start_mkcol(struct transfer_request *request) |
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{ |
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char *hex = sha1_to_hex(request->sha1); |
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struct active_request_slot *slot; |
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char *posn; |
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|
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request->url = xmalloc(strlen(remote->url) + 13); |
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strcpy(request->url, remote->url); |
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posn = request->url + strlen(remote->url); |
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strcpy(posn, "objects/"); |
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posn += 8; |
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memcpy(posn, hex, 2); |
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posn += 2; |
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strcpy(posn, "/"); |
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|
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slot = get_active_slot(); |
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slot->callback_func = process_response; |
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slot->callback_data = request; |
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curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */ |
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curl_easy_setopt(slot->curl, CURLOPT_URL, request->url); |
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curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr); |
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curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL); |
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curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null); |
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|
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if (start_active_slot(slot)) { |
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request->slot = slot; |
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request->state = RUN_MKCOL; |
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} else { |
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request->state = ABORTED; |
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free(request->url); |
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request->url = NULL; |
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} |
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} |
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|
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static void start_put(struct transfer_request *request) |
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{ |
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char *hex = sha1_to_hex(request->sha1); |
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struct active_request_slot *slot; |
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char *posn; |
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char type[20]; |
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char hdr[50]; |
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void *unpacked; |
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unsigned long len; |
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int hdrlen; |
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ssize_t size; |
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z_stream stream; |
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|
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unpacked = read_sha1_file(request->sha1, type, &len); |
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hdrlen = sprintf(hdr, "%s %lu", type, len) + 1; |
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|
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/* Set it up */ |
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memset(&stream, 0, sizeof(stream)); |
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deflateInit(&stream, Z_BEST_COMPRESSION); |
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size = deflateBound(&stream, len + hdrlen); |
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request->buffer.buffer = xmalloc(size); |
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|
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/* Compress it */ |
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stream.next_out = request->buffer.buffer; |
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stream.avail_out = size; |
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|
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/* First header.. */ |
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stream.next_in = (void *)hdr; |
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stream.avail_in = hdrlen; |
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while (deflate(&stream, 0) == Z_OK) |
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/* nothing */; |
|
|
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/* Then the data itself.. */ |
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stream.next_in = unpacked; |
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stream.avail_in = len; |
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while (deflate(&stream, Z_FINISH) == Z_OK) |
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/* nothing */; |
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deflateEnd(&stream); |
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free(unpacked); |
|
|
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request->buffer.size = stream.total_out; |
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request->buffer.posn = 0; |
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|
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request->url = xmalloc(strlen(remote->url) + |
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strlen(request->lock->token) + 51); |
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strcpy(request->url, remote->url); |
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posn = request->url + strlen(remote->url); |
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strcpy(posn, "objects/"); |
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posn += 8; |
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memcpy(posn, hex, 2); |
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posn += 2; |
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*(posn++) = '/'; |
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strcpy(posn, hex + 2); |
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request->dest = xmalloc(strlen(request->url) + 14); |
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sprintf(request->dest, "Destination: %s", request->url); |
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posn += 38; |
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*(posn++) = '.'; |
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strcpy(posn, request->lock->token); |
|
|
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slot = get_active_slot(); |
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slot->callback_func = process_response; |
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slot->callback_data = request; |
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curl_easy_setopt(slot->curl, CURLOPT_INFILE, &request->buffer); |
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curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, request->buffer.size); |
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curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer); |
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curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null); |
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curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT); |
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curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1); |
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curl_easy_setopt(slot->curl, CURLOPT_PUT, 1); |
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curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); |
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curl_easy_setopt(slot->curl, CURLOPT_URL, request->url); |
|
|
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if (start_active_slot(slot)) { |
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request->slot = slot; |
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request->state = RUN_PUT; |
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} else { |
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request->state = ABORTED; |
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free(request->url); |
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request->url = NULL; |
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} |
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} |
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|
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static void start_move(struct transfer_request *request) |
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{ |
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struct active_request_slot *slot; |
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struct curl_slist *dav_headers = NULL; |
|
|
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slot = get_active_slot(); |
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slot->callback_func = process_response; |
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slot->callback_data = request; |
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curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */ |
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curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MOVE); |
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dav_headers = curl_slist_append(dav_headers, request->dest); |
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dav_headers = curl_slist_append(dav_headers, "Overwrite: T"); |
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curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); |
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curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null); |
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curl_easy_setopt(slot->curl, CURLOPT_URL, request->url); |
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|
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if (start_active_slot(slot)) { |
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request->slot = slot; |
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request->state = RUN_MOVE; |
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} else { |
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request->state = ABORTED; |
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free(request->url); |
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request->url = NULL; |
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} |
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} |
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|
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static int refresh_lock(struct active_lock *lock) |
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{ |
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struct active_request_slot *slot; |
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char *if_header; |
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char timeout_header[25]; |
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struct curl_slist *dav_headers = NULL; |
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int rc = 0; |
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|
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lock->refreshing = 1; |
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|
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if_header = xmalloc(strlen(lock->token) + 25); |
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sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token); |
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sprintf(timeout_header, "Timeout: Second-%ld", lock->timeout); |
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dav_headers = curl_slist_append(dav_headers, if_header); |
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dav_headers = curl_slist_append(dav_headers, timeout_header); |
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|
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slot = get_active_slot(); |
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curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); |
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curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null); |
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curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url); |
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curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK); |
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curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); |
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|
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if (start_active_slot(slot)) { |
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run_active_slot(slot); |
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if (slot->curl_result != CURLE_OK) { |
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fprintf(stderr, "Got HTTP error %ld\n", slot->http_code); |
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} else { |
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lock->start_time = time(NULL); |
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rc = 1; |
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} |
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} |
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|
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lock->refreshing = 0; |
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curl_slist_free_all(dav_headers); |
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free(if_header); |
|
|
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return rc; |
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} |
|
|
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static void finish_request(struct transfer_request *request) |
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{ |
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time_t current_time = time(NULL); |
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int time_remaining; |
|
|
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request->curl_result = request->slot->curl_result; |
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request->http_code = request->slot->http_code; |
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request->slot = NULL; |
|
|
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/* Refresh the lock if it is close to timing out */ |
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time_remaining = request->lock->start_time + request->lock->timeout |
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- current_time; |
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if (time_remaining < LOCK_REFRESH && !request->lock->refreshing) { |
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if (!refresh_lock(request->lock)) { |
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fprintf(stderr, "Unable to refresh remote lock\n"); |
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aborted = 1; |
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} |
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} |
|
|
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if (request->headers != NULL) |
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curl_slist_free_all(request->headers); |
|
|
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/* URL is reused for MOVE after PUT */ |
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if (request->state != RUN_PUT) { |
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free(request->url); |
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request->url = NULL; |
|
} |
|
|
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if (request->state == RUN_HEAD) { |
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if (request->http_code == 404) { |
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request->state = NEED_PUSH; |
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} else if (request->curl_result == CURLE_OK) { |
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remote_dir_exists[request->sha1[0]] = 1; |
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request->state = COMPLETE; |
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} else { |
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fprintf(stderr, "HEAD %s failed, aborting (%d/%ld)\n", |
|
sha1_to_hex(request->sha1), |
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request->curl_result, request->http_code); |
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request->state = ABORTED; |
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aborted = 1; |
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} |
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} else if (request->state == RUN_MKCOL) { |
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if (request->curl_result == CURLE_OK || |
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request->http_code == 405) { |
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remote_dir_exists[request->sha1[0]] = 1; |
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start_put(request); |
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} else { |
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fprintf(stderr, "MKCOL %s failed, aborting (%d/%ld)\n", |
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sha1_to_hex(request->sha1), |
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request->curl_result, request->http_code); |
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request->state = ABORTED; |
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aborted = 1; |
|
} |
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} else if (request->state == RUN_PUT) { |
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if (request->curl_result == CURLE_OK) { |
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start_move(request); |
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} else { |
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fprintf(stderr, "PUT %s failed, aborting (%d/%ld)\n", |
|
sha1_to_hex(request->sha1), |
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request->curl_result, request->http_code); |
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request->state = ABORTED; |
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aborted = 1; |
|
} |
|
} else if (request->state == RUN_MOVE) { |
|
if (request->curl_result == CURLE_OK) { |
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if (push_verbosely) |
|
fprintf(stderr, |
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"sent %s\n", |
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sha1_to_hex(request->sha1)); |
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request->state = COMPLETE; |
|
} else { |
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fprintf(stderr, "MOVE %s failed, aborting (%d/%ld)\n", |
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sha1_to_hex(request->sha1), |
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request->curl_result, request->http_code); |
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request->state = ABORTED; |
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aborted = 1; |
|
} |
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} |
|
} |
|
|
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static void release_request(struct transfer_request *request) |
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{ |
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struct transfer_request *entry = request_queue_head; |
|
|
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if (request == request_queue_head) { |
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request_queue_head = request->next; |
|
} else { |
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while (entry->next != NULL && entry->next != request) |
|
entry = entry->next; |
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if (entry->next == request) |
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entry->next = entry->next->next; |
|
} |
|
|
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if (request->url != NULL) |
|
free(request->url); |
|
free(request); |
|
} |
|
|
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void fill_active_slots(void) |
|
{ |
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struct transfer_request *request = request_queue_head; |
|
struct active_request_slot *slot = active_queue_head; |
|
int num_transfers; |
|
|
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if (aborted) |
|
return; |
|
|
|
while (active_requests < max_requests && request != NULL) { |
|
if (!pushing && request->state == NEED_CHECK) { |
|
start_check(request); |
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curl_multi_perform(curlm, &num_transfers); |
|
} else if (pushing && request->state == NEED_PUSH) { |
|
if (remote_dir_exists[request->sha1[0]]) |
|
start_put(request); |
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else |
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start_mkcol(request); |
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curl_multi_perform(curlm, &num_transfers); |
|
} |
|
request = request->next; |
|
} |
|
|
|
while (slot != NULL) { |
|
if (!slot->in_use && slot->curl != NULL) { |
|
curl_easy_cleanup(slot->curl); |
|
slot->curl = NULL; |
|
} |
|
slot = slot->next; |
|
} |
|
} |
|
|
|
static void add_request(unsigned char *sha1, struct active_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; |
|
|
|
request = xmalloc(sizeof(*request)); |
|
memcpy(request->sha1, sha1, 20); |
|
request->url = NULL; |
|
request->lock = lock; |
|
request->headers = NULL; |
|
request->state = NEED_CHECK; |
|
request->next = request_queue_head; |
|
request_queue_head = request; |
|
|
|
fill_active_slots(); |
|
step_active_slots(); |
|
} |
|
|
|
static int fetch_index(unsigned char *sha1) |
|
{ |
|
char *hex = sha1_to_hex(sha1); |
|
char *filename; |
|
char *url; |
|
char tmpfile[PATH_MAX]; |
|
long prev_posn = 0; |
|
char range[RANGE_HEADER_SIZE]; |
|
struct curl_slist *range_header = NULL; |
|
|
|
FILE *indexfile; |
|
struct active_request_slot *slot; |
|
|
|
/* 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); |
|
slot = get_active_slot(); |
|
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) { |
|
free(url); |
|
return error("Unable to verify pack %s is available", |
|
hex); |
|
} |
|
} else { |
|
return error("Unable to start request"); |
|
} |
|
|
|
if (has_pack_index(sha1)) |
|
return 0; |
|
|
|
if (push_verbosely) |
|
fprintf(stderr, "Getting index for pack %s\n", hex); |
|
|
|
sprintf(url, "%s/objects/pack/pack-%s.idx", remote->url, hex); |
|
|
|
filename = sha1_pack_index_name(sha1); |
|
snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename); |
|
indexfile = fopen(tmpfile, "a"); |
|
if (!indexfile) |
|
return error("Unable to open local file %s for pack index", |
|
filename); |
|
|
|
slot = get_active_slot(); |
|
curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); |
|
curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); |
|
curl_easy_setopt(slot->curl, CURLOPT_FILE, indexfile); |
|
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 = indexfile; |
|
|
|
/* If there is data present from a previous transfer attempt, |
|
resume where it left off */ |
|
prev_posn = ftell(indexfile); |
|
if (prev_posn>0) { |
|
if (push_verbosely) |
|
fprintf(stderr, |
|
"Resuming fetch of index for pack %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); |
|
} |
|
|
|
if (start_active_slot(slot)) { |
|
run_active_slot(slot); |
|
if (slot->curl_result != CURLE_OK) { |
|
free(url); |
|
fclose(indexfile); |
|
return error("Unable to get pack index %s\n%s", url, |
|
curl_errorstr); |
|
} |
|
} else { |
|
free(url); |
|
fclose(indexfile); |
|
return error("Unable to start request"); |
|
} |
|
|
|
free(url); |
|
fclose(indexfile); |
|
|
|
return move_temp_to_file(tmpfile, filename); |
|
} |
|
|
|
static int setup_index(unsigned char *sha1) |
|
{ |
|
struct packed_git *new_pack; |
|
|
|
if (fetch_index(sha1)) |
|
return -1; |
|
|
|
new_pack = parse_pack_index(sha1); |
|
new_pack->next = remote->packs; |
|
remote->packs = new_pack; |
|
return 0; |
|
} |
|
|
|
static int fetch_indices(void) |
|
{ |
|
unsigned char sha1[20]; |
|
char *url; |
|
struct buffer buffer; |
|
char *data; |
|
int i = 0; |
|
|
|
struct active_request_slot *slot; |
|
|
|
data = xmalloc(4096); |
|
memset(data, 0, 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); |
|
|
|
slot = get_active_slot(); |
|
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) { |
|
free(buffer.buffer); |
|
free(url); |
|
if (slot->http_code == 404) |
|
return 0; |
|
else |
|
return error("%s", curl_errorstr); |
|
} |
|
} else { |
|
free(buffer.buffer); |
|
free(url); |
|
return error("Unable to start request"); |
|
} |
|
free(url); |
|
|
|
data = buffer.buffer; |
|
while (i < buffer.posn) { |
|
switch (data[i]) { |
|
case 'P': |
|
i++; |
|
if (i + 52 < buffer.posn && |
|
!strncmp(data + i, " pack-", 6) && |
|
!strncmp(data + i + 46, ".pack\n", 6)) { |
|
get_sha1_hex(data + i + 6, sha1); |
|
setup_index(sha1); |
|
i += 51; |
|
break; |
|
} |
|
default: |
|
while (data[i] != '\n') |
|
i++; |
|
} |
|
i++; |
|
} |
|
|
|
free(buffer.buffer); |
|
return 0; |
|
} |
|
|
|
static inline int needs_quote(int ch) |
|
{ |
|
switch (ch) { |
|
case '/': case '-': case '.': |
|
case 'A'...'Z': case 'a'...'z': case '0'...'9': |
|
return 0; |
|
default: |
|
return 1; |
|
} |
|
} |
|
|
|
static inline int hex(int v) |
|
{ |
|
if (v < 10) return '0' + v; |
|
else return 'A' + v - 10; |
|
} |
|
|
|
static char *quote_ref_url(const char *base, const char *ref) |
|
{ |
|
const char *cp; |
|
char *dp, *qref; |
|
int len, baselen, ch; |
|
|
|
baselen = strlen(base); |
|
len = baselen + 12; /* "refs/heads/" + NUL */ |
|
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++) { |
|
if (needs_quote(ch)) { |
|
*dp++ = '%'; |
|
*dp++ = hex((ch >> 4) & 0xF); |
|
*dp++ = hex(ch & 0xF); |
|
} |
|
else |
|
*dp++ = ch; |
|
} |
|
*dp = 0; |
|
|
|
return qref; |
|
} |
|
|
|
int fetch_ref(char *ref, unsigned char *sha1) |
|
{ |
|
char *url; |
|
char hex[42]; |
|
struct buffer buffer; |
|
char *base = remote->url; |
|
struct active_request_slot *slot; |
|
buffer.size = 41; |
|
buffer.posn = 0; |
|
buffer.buffer = hex; |
|
hex[41] = '\0'; |
|
|
|
url = quote_ref_url(base, ref); |
|
slot = get_active_slot(); |
|
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) |
|
return error("Couldn't get %s for %s\n%s", |
|
url, ref, curl_errorstr); |
|
} else { |
|
return error("Unable to start request"); |
|
} |
|
|
|
hex[40] = '\0'; |
|
get_sha1_hex(hex, sha1); |
|
return 0; |
|
} |
|
|
|
static void handle_lockprop_ctx(struct xml_ctx *ctx, int tag_closed) |
|
{ |
|
int *lock_flags = (int *)ctx->userData; |
|
|
|
if (tag_closed) { |
|
if (!strcmp(ctx->name, DAV_CTX_LOCKENTRY)) { |
|
if ((*lock_flags & DAV_PROP_LOCKEX) && |
|
(*lock_flags & DAV_PROP_LOCKWR)) { |
|
*lock_flags |= DAV_LOCK_OK; |
|
} |
|
*lock_flags &= DAV_LOCK_OK; |
|
} else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_WRITE)) { |
|
*lock_flags |= DAV_PROP_LOCKWR; |
|
} else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_EXCLUSIVE)) { |
|
*lock_flags |= DAV_PROP_LOCKEX; |
|
} |
|
} |
|
} |
|
|
|
static void handle_new_lock_ctx(struct xml_ctx *ctx, int tag_closed) |
|
{ |
|
struct active_lock *lock = (struct active_lock *)ctx->userData; |
|
|
|
if (tag_closed && ctx->cdata) { |
|
if (!strcmp(ctx->name, DAV_ACTIVELOCK_OWNER)) { |
|
lock->owner = xmalloc(strlen(ctx->cdata) + 1); |
|
strcpy(lock->owner, ctx->cdata); |
|
} else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TIMEOUT)) { |
|
if (!strncmp(ctx->cdata, "Second-", 7)) |
|
lock->timeout = |
|
strtol(ctx->cdata + 7, NULL, 10); |
|
} else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TOKEN)) { |
|
if (!strncmp(ctx->cdata, "opaquelocktoken:", 16)) { |
|
lock->token = xmalloc(strlen(ctx->cdata) - 15); |
|
strcpy(lock->token, ctx->cdata + 16); |
|
} |
|
} |
|
} |
|
} |
|
|
|
static void |
|
xml_start_tag(void *userData, const char *name, const char **atts) |
|
{ |
|
struct xml_ctx *ctx = (struct xml_ctx *)userData; |
|
const char *c = index(name, ':'); |
|
int new_len; |
|
|
|
if (c == NULL) |
|
c = name; |
|
else |
|
c++; |
|
|
|
new_len = strlen(ctx->name) + strlen(c) + 2; |
|
|
|
if (new_len > ctx->len) { |
|
ctx->name = xrealloc(ctx->name, new_len); |
|
ctx->len = new_len; |
|
} |
|
strcat(ctx->name, "."); |
|
strcat(ctx->name, c); |
|
|
|
if (ctx->cdata) { |
|
free(ctx->cdata); |
|
ctx->cdata = NULL; |
|
} |
|
|
|
ctx->userFunc(ctx, 0); |
|
} |
|
|
|
static void |
|
xml_end_tag(void *userData, const char *name) |
|
{ |
|
struct xml_ctx *ctx = (struct xml_ctx *)userData; |
|
const char *c = index(name, ':'); |
|
char *ep; |
|
|
|
ctx->userFunc(ctx, 1); |
|
|
|
if (c == NULL) |
|
c = name; |
|
else |
|
c++; |
|
|
|
ep = ctx->name + strlen(ctx->name) - strlen(c) - 1; |
|
*ep = 0; |
|
} |
|
|
|
static void |
|
xml_cdata(void *userData, const XML_Char *s, int len) |
|
{ |
|
struct xml_ctx *ctx = (struct xml_ctx *)userData; |
|
if (ctx->cdata) |
|
free(ctx->cdata); |
|
ctx->cdata = xcalloc(len+1, 1); |
|
strncpy(ctx->cdata, s, len); |
|
} |
|
|
|
static struct active_lock *lock_remote(char *file, long timeout) |
|
{ |
|
struct active_request_slot *slot; |
|
struct buffer out_buffer; |
|
struct buffer in_buffer; |
|
char *out_data; |
|
char *in_data; |
|
char *url; |
|
char *ep; |
|
char timeout_header[25]; |
|
struct active_lock *new_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); |
|
|
|
/* Make sure leading directories exist for the remote ref */ |
|
ep = strchr(url + strlen(remote->url) + 11, '/'); |
|
while (ep) { |
|
*ep = 0; |
|
slot = get_active_slot(); |
|
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) { |
|
fprintf(stderr, |
|
"Unable to create branch path %s\n", |
|
url); |
|
free(url); |
|
return NULL; |
|
} |
|
} else { |
|
fprintf(stderr, "Unable to start request\n"); |
|
free(url); |
|
return NULL; |
|
} |
|
*ep = '/'; |
|
ep = strchr(ep + 1, '/'); |
|
} |
|
|
|
out_buffer.size = strlen(LOCK_REQUEST) + strlen(git_default_email) - 2; |
|
out_data = xmalloc(out_buffer.size + 1); |
|
snprintf(out_data, out_buffer.size + 1, LOCK_REQUEST, git_default_email); |
|
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; |
|
|
|
sprintf(timeout_header, "Timeout: Second-%ld", timeout); |
|
dav_headers = curl_slist_append(dav_headers, timeout_header); |
|
dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml"); |
|
|
|
slot = get_active_slot(); |
|
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_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; |
|
|
|
if (start_active_slot(slot)) { |
|
run_active_slot(slot); |
|
if (slot->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; |
|
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))); |
|
new_lock->timeout = -1; |
|
} |
|
} |
|
} else { |
|
fprintf(stderr, "Unable to start 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); |
|
free(url); |
|
free(new_lock); |
|
new_lock = NULL; |
|
} else { |
|
new_lock->url = url; |
|
new_lock->start_time = time(NULL); |
|
} |
|
|
|
return new_lock; |
|
} |
|
|
|
static int unlock_remote(struct active_lock *lock) |
|
{ |
|
struct active_request_slot *slot; |
|
char *lock_token_header; |
|
struct curl_slist *dav_headers = NULL; |
|
int rc = 0; |
|
|
|
lock_token_header = xmalloc(strlen(lock->token) + 31); |
|
sprintf(lock_token_header, "Lock-Token: <opaquelocktoken:%s>", |
|
lock->token); |
|
dav_headers = curl_slist_append(dav_headers, lock_token_header); |
|
|
|
slot = get_active_slot(); |
|
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); |
|
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); |
|
|
|
if (start_active_slot(slot)) { |
|
run_active_slot(slot); |
|
if (slot->curl_result == CURLE_OK) |
|
rc = 1; |
|
else |
|
fprintf(stderr, "Got HTTP error %ld\n", |
|
slot->http_code); |
|
} else { |
|
fprintf(stderr, "Unable to start request\n"); |
|
} |
|
|
|
curl_slist_free_all(dav_headers); |
|
free(lock_token_header); |
|
|
|
if (lock->owner != NULL) |
|
free(lock->owner); |
|
free(lock->url); |
|
free(lock->token); |
|
free(lock); |
|
|
|
return rc; |
|
} |
|
|
|
static int locking_available(void) |
|
{ |
|
struct active_request_slot *slot; |
|
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; |
|
int lock_flags = 0; |
|
|
|
out_buffer.size = strlen(PROPFIND_REQUEST) + strlen(remote->url) - 2; |
|
out_data = xmalloc(out_buffer.size + 1); |
|
snprintf(out_data, out_buffer.size + 1, PROPFIND_REQUEST, remote->url); |
|
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: 0"); |
|
dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml"); |
|
|
|
slot = get_active_slot(); |
|
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, remote->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 (slot->curl_result == CURLE_OK) { |
|
ctx.name = xcalloc(10, 1); |
|
ctx.len = 0; |
|
ctx.cdata = NULL; |
|
ctx.userFunc = handle_lockprop_ctx; |
|
ctx.userData = &lock_flags; |
|
XML_SetUserData(parser, &ctx); |
|
XML_SetElementHandler(parser, xml_start_tag, |
|
xml_end_tag); |
|
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))); |
|
lock_flags = 0; |
|
} |
|
} |
|
} else { |
|
fprintf(stderr, "Unable to start request\n"); |
|
} |
|
|
|
free(out_data); |
|
free(in_buffer.buffer); |
|
curl_slist_free_all(dav_headers); |
|
|
|
return lock_flags; |
|
} |
|
|
|
static int is_ancestor(unsigned char *sha1, struct commit *commit) |
|
{ |
|
struct commit_list *parents; |
|
|
|
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; |
|
} |
|
|
|
static void get_delta(unsigned char *sha1, struct object *obj, |
|
struct active_lock *lock) |
|
{ |
|
struct commit *commit; |
|
struct commit_list *parents; |
|
struct tree *tree; |
|
struct tree_entry_list *entry; |
|
|
|
if (sha1 && !memcmp(sha1, obj->sha1, 20)) |
|
return; |
|
|
|
if (aborted) |
|
return; |
|
|
|
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; |
|
} |
|
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; |
|
} |
|
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; |
|
} |
|
} else if (obj->type == blob_type || obj->type == tag_type) { |
|
add_request(obj->sha1, lock); |
|
} |
|
} |
|
|
|
static int update_remote(unsigned char *sha1, struct active_lock *lock) |
|
{ |
|
struct active_request_slot *slot; |
|
char *out_data; |
|
char *if_header; |
|
struct buffer out_buffer; |
|
struct curl_slist *dav_headers = NULL; |
|
int i; |
|
|
|
if_header = xmalloc(strlen(lock->token) + 25); |
|
sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token); |
|
dav_headers = curl_slist_append(dav_headers, if_header); |
|
|
|
out_buffer.size = 41; |
|
out_data = xmalloc(out_buffer.size + 1); |
|
i = snprintf(out_data, out_buffer.size + 1, "%s\n", sha1_to_hex(sha1)); |
|
if (i != out_buffer.size) { |
|
fprintf(stderr, "Unable to initialize PUT request body\n"); |
|
return 0; |
|
} |
|
out_buffer.posn = 0; |
|
out_buffer.buffer = out_data; |
|
|
|
slot = get_active_slot(); |
|
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_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); |
|
|
|
if (start_active_slot(slot)) { |
|
run_active_slot(slot); |
|
free(out_data); |
|
free(if_header); |
|
if (slot->curl_result != CURLE_OK) { |
|
fprintf(stderr, |
|
"PUT error: curl result=%d, HTTP code=%ld\n", |
|
slot->curl_result, slot->http_code); |
|
/* We should attempt recovery? */ |
|
return 0; |
|
} |
|
} else { |
|
free(out_data); |
|
free(if_header); |
|
fprintf(stderr, "Unable to start PUT request\n"); |
|
return 0; |
|
} |
|
|
|
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; |
|
int rc = 0; |
|
int i; |
|
|
|
setup_git_directory(); |
|
setup_ident(); |
|
|
|
remote = xmalloc(sizeof(*remote)); |
|
remote->url = NULL; |
|
remote->packs = NULL; |
|
|
|
argv++; |
|
for (i = 1; i < argc; i++, argv++) { |
|
char *arg = *argv; |
|
|
|
if (*arg == '-') { |
|
if (!strcmp(arg, "--complete")) { |
|
push_all = 1; |
|
continue; |
|
} |
|
if (!strcmp(arg, "--force")) { |
|
force_all = 1; |
|
continue; |
|
} |
|
if (!strcmp(arg, "--verbose")) { |
|
push_verbosely = 1; |
|
continue; |
|
} |
|
usage(http_push_usage); |
|
} |
|
if (!remote->url) { |
|
remote->url = arg; |
|
continue; |
|
} |
|
refspec = argv; |
|
nr_refspec = argc - i; |
|
break; |
|
} |
|
|
|
if (!remote->url) |
|
usage(http_push_usage); |
|
|
|
memset(remote_dir_exists, 0, 256); |
|
|
|
http_init(); |
|
|
|
no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:"); |
|
default_headers = curl_slist_append(default_headers, "Range:"); |
|
default_headers = curl_slist_append(default_headers, "Destination:"); |
|
default_headers = curl_slist_append(default_headers, "If:"); |
|
default_headers = curl_slist_append(default_headers, |
|
"Pragma: no-cache"); |
|
|
|
/* Verify DAV compliance/lock support */ |
|
if (!locking_available()) { |
|
fprintf(stderr, "Error: no DAV locking support on remote repo %s\n", remote->url); |
|
rc = 1; |
|
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++; |
|
} |
|
ep = strchr(local_ref, ':'); |
|
if (ep) { |
|
remote_ref = ep + 1; |
|
*ep = 0; |
|
} |
|
else |
|
remote_ref = local_ref; |
|
|
|
/* 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) { |
|
fprintf(stderr, "Unable to lock remote branch %s\n", |
|
remote_ref); |
|
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; |
|
} |
|
|
|
/* 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; |
|
} |
|
} |
|
|
|
/* Generate and check list of required objects */ |
|
pushing = 0; |
|
if (do_remote_update || push_all) |
|
fetch_indices(); |
|
get_delta(push_all ? NULL : remote_sha1, |
|
local_object, remote_lock); |
|
finish_all_active_slots(); |
|
|
|
/* Push missing objects to remote, this would be a |
|
convenient time to pack them first if appropriate. */ |
|
pushing = 1; |
|
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; |
|
} |
|
} |
|
|
|
unlock: |
|
unlock_remote(remote_lock); |
|
free(remote_path); |
|
} |
|
|
|
cleanup: |
|
free(remote); |
|
|
|
curl_slist_free_all(no_pragma_header); |
|
curl_slist_free_all(default_headers); |
|
|
|
http_cleanup(); |
|
|
|
request = request_queue_head; |
|
while (request != NULL) { |
|
next_request = request->next; |
|
release_request(request); |
|
request = next_request; |
|
} |
|
|
|
return rc; |
|
}
|
|
|