diff options
Diffstat (limited to 'transport-helper.c')
| -rw-r--r-- | transport-helper.c | 137 |
1 files changed, 125 insertions, 12 deletions
diff --git a/transport-helper.c b/transport-helper.c index 2638781c5b..191fbf798a 100644 --- a/transport-helper.c +++ b/transport-helper.c @@ -7,6 +7,7 @@ #include "revision.h" #include "quote.h" #include "remote.h" +#include "string-list.h" static int debug; @@ -17,6 +18,7 @@ struct helper_data FILE *out; unsigned fetch : 1, import : 1, + export : 1, option : 1, push : 1, connect : 1, @@ -163,6 +165,8 @@ static struct child_process *get_helper(struct transport *transport) data->push = 1; else if (!strcmp(capname, "import")) data->import = 1; + else if (!strcmp(capname, "export")) + data->export = 1; else if (!data->refspecs && !prefixcmp(capname, "refspec ")) { ALLOC_GROW(refspecs, refspec_nr + 1, @@ -170,6 +174,11 @@ static struct child_process *get_helper(struct transport *transport) refspecs[refspec_nr++] = strdup(buf.buf + strlen("refspec ")); } else if (!strcmp(capname, "connect")) { data->connect = 1; + } else if (!strcmp(buf.buf, "gitdir")) { + struct strbuf gitdir = STRBUF_INIT; + strbuf_addf(&gitdir, "gitdir %s\n", get_git_dir()); + sendline(data, &gitdir); + strbuf_release(&gitdir); } else if (mandatory) { die("Unknown mandatory capability %s. This remote " "helper probably needs newer version of Git.\n", @@ -351,6 +360,33 @@ static int get_importer(struct transport *transport, struct child_process *fasti return start_command(fastimport); } +static int get_exporter(struct transport *transport, + struct child_process *fastexport, + const char *export_marks, + const char *import_marks, + struct string_list *revlist_args) +{ + struct child_process *helper = get_helper(transport); + int argc = 0, i; + memset(fastexport, 0, sizeof(*fastexport)); + + /* we need to duplicate helper->in because we want to use it after + * fastexport is done with it. */ + fastexport->out = dup(helper->in); + fastexport->argv = xcalloc(4 + revlist_args->nr, sizeof(*fastexport->argv)); + fastexport->argv[argc++] = "fast-export"; + if (export_marks) + fastexport->argv[argc++] = export_marks; + if (import_marks) + fastexport->argv[argc++] = import_marks; + + for (i = 0; i < revlist_args->nr; i++) + fastexport->argv[argc++] = revlist_args->items[i].string; + + fastexport->git_cmd = 1; + return start_command(fastexport); +} + static int fetch_with_import(struct transport *transport, int nr_heads, struct ref **to_fetch) { @@ -518,7 +554,7 @@ static int fetch(struct transport *transport, return -1; } -static int push_refs(struct transport *transport, +static int push_refs_with_push(struct transport *transport, struct ref *remote_refs, int flags) { int force_all = flags & TRANSPORT_PUSH_FORCE; @@ -528,17 +564,6 @@ static int push_refs(struct transport *transport, struct child_process *helper; struct ref *ref; - if (process_connect(transport, 1)) { - do_take_over(transport); - return transport->push_refs(transport, remote_refs, flags); - } - - 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; - } - helper = get_helper(transport); if (!data->push) return 1; @@ -657,6 +682,94 @@ static int push_refs(struct transport *transport, return 0; } +static int push_refs_with_export(struct transport *transport, + struct ref *remote_refs, int flags) +{ + struct ref *ref; + struct child_process *helper, exporter; + struct helper_data *data = transport->data; + char *export_marks = NULL, *import_marks = NULL; + struct string_list revlist_args = { NULL, 0, 0 }; + struct strbuf buf = STRBUF_INIT; + + helper = get_helper(transport); + + write_constant(helper->in, "export\n"); + + recvline(data, &buf); + if (debug) + fprintf(stderr, "Debug: Got export_marks '%s'\n", buf.buf); + if (buf.len) { + struct strbuf arg = STRBUF_INIT; + strbuf_addstr(&arg, "--export-marks="); + strbuf_addbuf(&arg, &buf); + export_marks = strbuf_detach(&arg, NULL); + } + + recvline(data, &buf); + if (debug) + fprintf(stderr, "Debug: Got import_marks '%s'\n", buf.buf); + if (buf.len) { + struct strbuf arg = STRBUF_INIT; + strbuf_addstr(&arg, "--import-marks="); + strbuf_addbuf(&arg, &buf); + import_marks = strbuf_detach(&arg, NULL); + } + + strbuf_reset(&buf); + + for (ref = remote_refs; ref; ref = ref->next) { + char *private; + unsigned char sha1[20]; + + if (!data->refspecs) + continue; + private = apply_refspecs(data->refspecs, data->refspec_nr, ref->name); + if (private && !get_sha1(private, sha1)) { + strbuf_addf(&buf, "^%s", private); + string_list_append(&revlist_args, strbuf_detach(&buf, NULL)); + } + + string_list_append(&revlist_args, ref->name); + + } + + if (get_exporter(transport, &exporter, + export_marks, import_marks, &revlist_args)) + die("Couldn't run fast-export"); + + data->no_disconnect_req = 1; + finish_command(&exporter); + disconnect_helper(transport); + return 0; +} + +static int push_refs(struct transport *transport, + struct ref *remote_refs, int flags) +{ + struct helper_data *data = transport->data; + + if (process_connect(transport, 1)) { + do_take_over(transport); + return transport->push_refs(transport, remote_refs, flags); + } + + 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; + } + + if (data->push) + return push_refs_with_push(transport, remote_refs, flags); + + if (data->export) + return push_refs_with_export(transport, remote_refs, flags); + + return -1; +} + + static int has_attribute(const char *attrs, const char *attr) { int len; if (!attrs) |