diff options
| -rw-r--r-- | Makefile | 1 | ||||
| -rw-r--r-- | builtin/send-pack.c | 333 | ||||
| -rw-r--r-- | send-pack.c | 344 | ||||
| -rw-r--r-- | transport.h | 5 |
4 files changed, 350 insertions, 333 deletions
@@ -798,6 +798,7 @@ LIB_OBJS += rerere.o LIB_OBJS += resolve-undo.o LIB_OBJS += revision.o LIB_OBJS += run-command.o +LIB_OBJS += send-pack.o LIB_OBJS += sequencer.o LIB_OBJS += server-info.o LIB_OBJS += setup.o diff --git a/builtin/send-pack.c b/builtin/send-pack.c index 7d0506421..d34201372 100644 --- a/builtin/send-pack.c +++ b/builtin/send-pack.c @@ -16,164 +16,6 @@ static const char send_pack_usage[] = static struct send_pack_args args; -static int feed_object(const unsigned char *sha1, int fd, int negative) -{ - char buf[42]; - - if (negative && !has_sha1_file(sha1)) - return 1; - - memcpy(buf + negative, sha1_to_hex(sha1), 40); - if (negative) - buf[0] = '^'; - buf[40 + negative] = '\n'; - return write_or_whine(fd, buf, 41 + negative, "send-pack: send refs"); -} - -/* - * Make a pack stream and spit it out into file descriptor fd - */ -static int pack_objects(int fd, struct ref *refs, struct extra_have_objects *extra, struct send_pack_args *args) -{ - /* - * The child becomes pack-objects --revs; we feed - * the revision parameters to it via its stdin and - * let its stdout go back to the other end. - */ - const char *argv[] = { - "pack-objects", - "--all-progress-implied", - "--revs", - "--stdout", - NULL, - NULL, - NULL, - NULL, - NULL, - }; - struct child_process po; - int i; - - i = 4; - if (args->use_thin_pack) - argv[i++] = "--thin"; - if (args->use_ofs_delta) - argv[i++] = "--delta-base-offset"; - if (args->quiet || !args->progress) - argv[i++] = "-q"; - if (args->progress) - argv[i++] = "--progress"; - memset(&po, 0, sizeof(po)); - po.argv = argv; - po.in = -1; - po.out = args->stateless_rpc ? -1 : fd; - po.git_cmd = 1; - if (start_command(&po)) - die_errno("git pack-objects failed"); - - /* - * We feed the pack-objects we just spawned with revision - * parameters by writing to the pipe. - */ - for (i = 0; i < extra->nr; i++) - if (!feed_object(extra->array[i], po.in, 1)) - break; - - while (refs) { - if (!is_null_sha1(refs->old_sha1) && - !feed_object(refs->old_sha1, po.in, 1)) - break; - if (!is_null_sha1(refs->new_sha1) && - !feed_object(refs->new_sha1, po.in, 0)) - break; - refs = refs->next; - } - - close(po.in); - - if (args->stateless_rpc) { - char *buf = xmalloc(LARGE_PACKET_MAX); - while (1) { - ssize_t n = xread(po.out, buf, LARGE_PACKET_MAX); - if (n <= 0) - break; - send_sideband(fd, -1, buf, n, LARGE_PACKET_MAX); - } - free(buf); - close(po.out); - po.out = -1; - } - - if (finish_command(&po)) - return -1; - return 0; -} - -static int receive_status(int in, struct ref *refs) -{ - struct ref *hint; - char line[1000]; - int ret = 0; - int len = packet_read_line(in, line, sizeof(line)); - if (len < 10 || memcmp(line, "unpack ", 7)) - return error("did not receive remote status"); - if (memcmp(line, "unpack ok\n", 10)) { - char *p = line + strlen(line) - 1; - if (*p == '\n') - *p = '\0'; - error("unpack failed: %s", line + 7); - ret = -1; - } - hint = NULL; - while (1) { - char *refname; - char *msg; - len = packet_read_line(in, line, sizeof(line)); - if (!len) - break; - if (len < 3 || - (memcmp(line, "ok ", 3) && memcmp(line, "ng ", 3))) { - fprintf(stderr, "protocol error: %s\n", line); - ret = -1; - break; - } - - line[strlen(line)-1] = '\0'; - refname = line + 3; - msg = strchr(refname, ' '); - if (msg) - *msg++ = '\0'; - - /* first try searching at our hint, falling back to all refs */ - if (hint) - hint = find_ref_by_name(hint, refname); - if (!hint) - hint = find_ref_by_name(refs, refname); - if (!hint) { - warning("remote reported status on unknown ref: %s", - refname); - continue; - } - if (hint->status != REF_STATUS_EXPECTING_REPORT) { - warning("remote reported status on unexpected ref: %s", - refname); - continue; - } - - if (line[0] == 'o' && line[1] == 'k') - hint->status = REF_STATUS_OK; - else { - hint->status = REF_STATUS_REMOTE_REJECT; - ret = -1; - } - if (msg) - hint->remote_status = xstrdup(msg); - /* start our next search from the next ref */ - hint = hint->next; - } - return ret; -} - static void print_helper_status(struct ref *ref) { struct strbuf buf = STRBUF_INIT; @@ -227,181 +69,6 @@ static void print_helper_status(struct ref *ref) strbuf_release(&buf); } -static int sideband_demux(int in, int out, void *data) -{ - int *fd = data, ret; -#ifdef NO_PTHREADS - close(fd[1]); -#endif - ret = recv_sideband("send-pack", fd[0], out); - close(out); - return ret; -} - -int send_pack(struct send_pack_args *args, - int fd[], struct child_process *conn, - struct ref *remote_refs, - struct extra_have_objects *extra_have) -{ - int in = fd[0]; - int out = fd[1]; - struct strbuf req_buf = STRBUF_INIT; - struct ref *ref; - int new_refs; - int allow_deleting_refs = 0; - int status_report = 0; - int use_sideband = 0; - int quiet_supported = 0; - int agent_supported = 0; - unsigned cmds_sent = 0; - int ret; - struct async demux; - - /* Does the other end support the reporting? */ - if (server_supports("report-status")) - status_report = 1; - if (server_supports("delete-refs")) - allow_deleting_refs = 1; - if (server_supports("ofs-delta")) - args->use_ofs_delta = 1; - if (server_supports("side-band-64k")) - use_sideband = 1; - if (server_supports("quiet")) - quiet_supported = 1; - if (server_supports("agent")) - agent_supported = 1; - - if (!remote_refs) { - fprintf(stderr, "No refs in common and none specified; doing nothing.\n" - "Perhaps you should specify a branch such as 'master'.\n"); - return 0; - } - - /* - * Finally, tell the other end! - */ - new_refs = 0; - for (ref = remote_refs; ref; ref = ref->next) { - if (!ref->peer_ref && !args->send_mirror) - continue; - - /* Check for statuses set by set_ref_status_for_push() */ - switch (ref->status) { - case REF_STATUS_REJECT_NONFASTFORWARD: - case REF_STATUS_UPTODATE: - continue; - default: - ; /* do nothing */ - } - - if (ref->deletion && !allow_deleting_refs) { - ref->status = REF_STATUS_REJECT_NODELETE; - continue; - } - - if (!ref->deletion) - new_refs++; - - if (args->dry_run) { - ref->status = REF_STATUS_OK; - } else { - char *old_hex = sha1_to_hex(ref->old_sha1); - char *new_hex = sha1_to_hex(ref->new_sha1); - int quiet = quiet_supported && (args->quiet || !args->progress); - - if (!cmds_sent && (status_report || use_sideband || - quiet || agent_supported)) { - packet_buf_write(&req_buf, - "%s %s %s%c%s%s%s%s%s", - old_hex, new_hex, ref->name, 0, - status_report ? " report-status" : "", - use_sideband ? " side-band-64k" : "", - quiet ? " quiet" : "", - agent_supported ? " agent=" : "", - agent_supported ? git_user_agent_sanitized() : "" - ); - } - else - packet_buf_write(&req_buf, "%s %s %s", - old_hex, new_hex, ref->name); - ref->status = status_report ? - REF_STATUS_EXPECTING_REPORT : - REF_STATUS_OK; - cmds_sent++; - } - } - - if (args->stateless_rpc) { - if (!args->dry_run && cmds_sent) { - packet_buf_flush(&req_buf); - send_sideband(out, -1, req_buf.buf, req_buf.len, LARGE_PACKET_MAX); - } - } else { - safe_write(out, req_buf.buf, req_buf.len); - packet_flush(out); - } - strbuf_release(&req_buf); - - if (use_sideband && cmds_sent) { - memset(&demux, 0, sizeof(demux)); - demux.proc = sideband_demux; - demux.data = fd; - demux.out = -1; - if (start_async(&demux)) - die("send-pack: unable to fork off sideband demultiplexer"); - in = demux.out; - } - - if (new_refs && cmds_sent) { - if (pack_objects(out, remote_refs, extra_have, args) < 0) { - for (ref = remote_refs; ref; ref = ref->next) - ref->status = REF_STATUS_NONE; - if (args->stateless_rpc) - close(out); - if (git_connection_is_socket(conn)) - shutdown(fd[0], SHUT_WR); - if (use_sideband) - finish_async(&demux); - return -1; - } - } - if (args->stateless_rpc && cmds_sent) - packet_flush(out); - - if (status_report && cmds_sent) - ret = receive_status(in, remote_refs); - else - ret = 0; - if (args->stateless_rpc) - packet_flush(out); - - if (use_sideband && cmds_sent) { - if (finish_async(&demux)) { - error("error in sideband demultiplexer"); - ret = -1; - } - close(demux.out); - } - - if (ret < 0) - return ret; - - if (args->porcelain) - return 0; - - for (ref = remote_refs; ref; ref = ref->next) { - switch (ref->status) { - case REF_STATUS_NONE: - case REF_STATUS_UPTODATE: - case REF_STATUS_OK: - break; - default: - return -1; - } - } - return 0; -} - int cmd_send_pack(int argc, const char **argv, const char *prefix) { int i, nr_refspecs = 0; diff --git a/send-pack.c b/send-pack.c new file mode 100644 index 000000000..f50dfd9f4 --- /dev/null +++ b/send-pack.c @@ -0,0 +1,344 @@ +#include "builtin.h" +#include "commit.h" +#include "refs.h" +#include "pkt-line.h" +#include "sideband.h" +#include "run-command.h" +#include "remote.h" +#include "send-pack.h" +#include "quote.h" +#include "transport.h" +#include "version.h" + +static int feed_object(const unsigned char *sha1, int fd, int negative) +{ + char buf[42]; + + if (negative && !has_sha1_file(sha1)) + return 1; + + memcpy(buf + negative, sha1_to_hex(sha1), 40); + if (negative) + buf[0] = '^'; + buf[40 + negative] = '\n'; + return write_or_whine(fd, buf, 41 + negative, "send-pack: send refs"); +} + +/* + * Make a pack stream and spit it out into file descriptor fd + */ +static int pack_objects(int fd, struct ref *refs, struct extra_have_objects *extra, struct send_pack_args *args) +{ + /* + * The child becomes pack-objects --revs; we feed + * the revision parameters to it via its stdin and + * let its stdout go back to the other end. + */ + const char *argv[] = { + "pack-objects", + "--all-progress-implied", + "--revs", + "--stdout", + NULL, + NULL, + NULL, + NULL, + NULL, + }; + struct child_process po; + int i; + + i = 4; + if (args->use_thin_pack) + argv[i++] = "--thin"; + if (args->use_ofs_delta) + argv[i++] = "--delta-base-offset"; + if (args->quiet || !args->progress) + argv[i++] = "-q"; + if (args->progress) + argv[i++] = "--progress"; + memset(&po, 0, sizeof(po)); + po.argv = argv; + po.in = -1; + po.out = args->stateless_rpc ? -1 : fd; + po.git_cmd = 1; + if (start_command(&po)) + die_errno("git pack-objects failed"); + + /* + * We feed the pack-objects we just spawned with revision + * parameters by writing to the pipe. + */ + for (i = 0; i < extra->nr; i++) + if (!feed_object(extra->array[i], po.in, 1)) + break; + + while (refs) { + if (!is_null_sha1(refs->old_sha1) && + !feed_object(refs->old_sha1, po.in, 1)) + break; + if (!is_null_sha1(refs->new_sha1) && + !feed_object(refs->new_sha1, po.in, 0)) + break; + refs = refs->next; + } + + close(po.in); + + if (args->stateless_rpc) { + char *buf = xmalloc(LARGE_PACKET_MAX); + while (1) { + ssize_t n = xread(po.out, buf, LARGE_PACKET_MAX); + if (n <= 0) + break; + send_sideband(fd, -1, buf, n, LARGE_PACKET_MAX); + } + free(buf); + close(po.out); + po.out = -1; + } + + if (finish_command(&po)) + return -1; + return 0; +} + +static int receive_status(int in, struct ref *refs) +{ + struct ref *hint; + char line[1000]; + int ret = 0; + int len = packet_read_line(in, line, sizeof(line)); + if (len < 10 || memcmp(line, "unpack ", 7)) + return error("did not receive remote status"); + if (memcmp(line, "unpack ok\n", 10)) { + char *p = line + strlen(line) - 1; + if (*p == '\n') + *p = '\0'; + error("unpack failed: %s", line + 7); + ret = -1; + } + hint = NULL; + while (1) { + char *refname; + char *msg; + len = packet_read_line(in, line, sizeof(line)); + if (!len) + break; + if (len < 3 || + (memcmp(line, "ok ", 3) && memcmp(line, "ng ", 3))) { + fprintf(stderr, "protocol error: %s\n", line); + ret = -1; + break; + } + + line[strlen(line)-1] = '\0'; + refname = line + 3; + msg = strchr(refname, ' '); + if (msg) + *msg++ = '\0'; + + /* first try searching at our hint, falling back to all refs */ + if (hint) + hint = find_ref_by_name(hint, refname); + if (!hint) + hint = find_ref_by_name(refs, refname); + if (!hint) { + warning("remote reported status on unknown ref: %s", + refname); + continue; + } + if (hint->status != REF_STATUS_EXPECTING_REPORT) { + warning("remote reported status on unexpected ref: %s", + refname); + continue; + } + + if (line[0] == 'o' && line[1] == 'k') + hint->status = REF_STATUS_OK; + else { + hint->status = REF_STATUS_REMOTE_REJECT; + ret = -1; + } + if (msg) + hint->remote_status = xstrdup(msg); + /* start our next search from the next ref */ + hint = hint->next; + } + return ret; +} + +static int sideband_demux(int in, int out, void *data) +{ + int *fd = data, ret; +#ifdef NO_PTHREADS + close(fd[1]); +#endif + ret = recv_sideband("send-pack", fd[0], out); + close(out); + return ret; +} + +int send_pack(struct send_pack_args *args, + int fd[], struct child_process *conn, + struct ref *remote_refs, + struct extra_have_objects *extra_have) +{ + int in = fd[0]; + int out = fd[1]; + struct strbuf req_buf = STRBUF_INIT; + struct ref *ref; + int new_refs; + int allow_deleting_refs = 0; + int status_report = 0; + int use_sideband = 0; + int quiet_supported = 0; + int agent_supported = 0; + unsigned cmds_sent = 0; + int ret; + struct async demux; + + /* Does the other end support the reporting? */ + if (server_supports("report-status")) + status_report = 1; + if (server_supports("delete-refs")) + allow_deleting_refs = 1; + if (server_supports("ofs-delta")) + args->use_ofs_delta = 1; + if (server_supports("side-band-64k")) + use_sideband = 1; + if (server_supports("quiet")) + quiet_supported = 1; + if (server_supports("agent")) + agent_supported = 1; + + if (!remote_refs) { + fprintf(stderr, "No refs in common and none specified; doing nothing.\n" + "Perhaps you should specify a branch such as 'master'.\n"); + return 0; + } + + /* + * Finally, tell the other end! + */ + new_refs = 0; + for (ref = remote_refs; ref; ref = ref->next) { + if (!ref->peer_ref && !args->send_mirror) + continue; + + /* Check for statuses set by set_ref_status_for_push() */ + switch (ref->status) { + case REF_STATUS_REJECT_NONFASTFORWARD: + case REF_STATUS_UPTODATE: + continue; + default: + ; /* do nothing */ + } + + if (ref->deletion && !allow_deleting_refs) { + ref->status = REF_STATUS_REJECT_NODELETE; + continue; + } + + if (!ref->deletion) + new_refs++; + + if (args->dry_run) { + ref->status = REF_STATUS_OK; + } else { + char *old_hex = sha1_to_hex(ref->old_sha1); + char *new_hex = sha1_to_hex(ref->new_sha1); + int quiet = quiet_supported && (args->quiet || !args->progress); + + if (!cmds_sent && (status_report || use_sideband || + quiet || agent_supported)) { + packet_buf_write(&req_buf, + "%s %s %s%c%s%s%s%s%s", + old_hex, new_hex, ref->name, 0, + status_report ? " report-status" : "", + use_sideband ? " side-band-64k" : "", + quiet ? " quiet" : "", + agent_supported ? " agent=" : "", + agent_supported ? git_user_agent_sanitized() : "" + ); + } + else + packet_buf_write(&req_buf, "%s %s %s", + old_hex, new_hex, ref->name); + ref->status = status_report ? + REF_STATUS_EXPECTING_REPORT : + REF_STATUS_OK; + cmds_sent++; + } + } + + if (args->stateless_rpc) { + if (!args->dry_run && cmds_sent) { + packet_buf_flush(&req_buf); + send_sideband(out, -1, req_buf.buf, req_buf.len, LARGE_PACKET_MAX); + } + } else { + safe_write(out, req_buf.buf, req_buf.len); + packet_flush(out); + } + strbuf_release(&req_buf); + + if (use_sideband && cmds_sent) { + memset(&demux, 0, sizeof(demux)); + demux.proc = sideband_demux; + demux.data = fd; + demux.out = -1; + if (start_async(&demux)) + die("send-pack: unable to fork off sideband demultiplexer"); + in = demux.out; + } + + if (new_refs && cmds_sent) { + if (pack_objects(out, remote_refs, extra_have, args) < 0) { + for (ref = remote_refs; ref; ref = ref->next) + ref->status = REF_STATUS_NONE; + if (args->stateless_rpc) + close(out); + if (git_connection_is_socket(conn)) + shutdown(fd[0], SHUT_WR); + if (use_sideband) + finish_async(&demux); + return -1; + } + } + if (args->stateless_rpc && cmds_sent) + packet_flush(out); + + if (status_report && cmds_sent) + ret = receive_status(in, remote_refs); + else + ret = 0; + if (args->stateless_rpc) + packet_flush(out); + + if (use_sideband && cmds_sent) { + if (finish_async(&demux)) { + error("error in sideband demultiplexer"); + ret = -1; + } + close(demux.out); + } + + if (ret < 0) + return ret; + + if (args->porcelain) + return 0; + + for (ref = remote_refs; ref; ref = ref->next) { + switch (ref->status) { + case REF_STATUS_NONE: + case REF_STATUS_UPTODATE: + case REF_STATUS_OK: + break; + default: + return -1; + } + } + return 0; +} diff --git a/transport.h b/transport.h index 3b21c4abe..4a61c0c3f 100644 --- a/transport.h +++ b/transport.h @@ -175,4 +175,9 @@ void transport_print_push_status(const char *dest, struct ref *refs, typedef void alternate_ref_fn(const struct ref *, void *); extern void for_each_alternate_ref(alternate_ref_fn, void *); +struct send_pack_args; +extern int send_pack(struct send_pack_args *args, + int fd[], struct child_process *conn, + struct ref *remote_refs, + struct extra_have_objects *extra_have); #endif |