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![Jeff King](/assets/img/avatar_default.png)
Over time, the http_get_strbuf function has grown several optional parameters. We now have a bitfield with multiple boolean options, as well as an optional strbuf for returning the content-type of the response. And a future patch in this series is going to add another strbuf option. Treating these as separate arguments has a few downsides: 1. Most call sites need to add extra NULLs and 0s for the options they aren't interested in. 2. The http_get_* functions are actually wrappers around 2 layers of low-level implementation functions. We have to pass these options through individually. 3. The http_get_strbuf wrapper learned these options, but nobody bothered to do so for http_get_file, even though it is backed by the same function that does understand the options. Let's consolidate the options into a single struct. For the common case of the default options, we'll allow callers to simply pass a NULL for the options struct. The resulting code is often a few lines longer, but it ends up being easier to read (and to change as we add new options, since we do not need to update each call site). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
960 lines
22 KiB
C
960 lines
22 KiB
C
#include "cache.h"
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#include "remote.h"
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#include "strbuf.h"
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#include "walker.h"
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#include "http.h"
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#include "exec_cmd.h"
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#include "run-command.h"
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#include "pkt-line.h"
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#include "sideband.h"
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#include "argv-array.h"
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static struct remote *remote;
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static const char *url; /* always ends with a trailing slash */
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struct options {
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int verbosity;
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unsigned long depth;
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unsigned progress : 1,
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followtags : 1,
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dry_run : 1,
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thin : 1;
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};
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static struct options options;
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static int set_option(const char *name, const char *value)
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{
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if (!strcmp(name, "verbosity")) {
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char *end;
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int v = strtol(value, &end, 10);
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if (value == end || *end)
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return -1;
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options.verbosity = v;
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return 0;
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}
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else if (!strcmp(name, "progress")) {
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if (!strcmp(value, "true"))
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options.progress = 1;
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else if (!strcmp(value, "false"))
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options.progress = 0;
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else
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return -1;
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return 0;
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}
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else if (!strcmp(name, "depth")) {
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char *end;
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unsigned long v = strtoul(value, &end, 10);
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if (value == end || *end)
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return -1;
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options.depth = v;
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return 0;
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}
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else if (!strcmp(name, "followtags")) {
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if (!strcmp(value, "true"))
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options.followtags = 1;
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else if (!strcmp(value, "false"))
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options.followtags = 0;
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else
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return -1;
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return 0;
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}
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else if (!strcmp(name, "dry-run")) {
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if (!strcmp(value, "true"))
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options.dry_run = 1;
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else if (!strcmp(value, "false"))
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options.dry_run = 0;
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else
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return -1;
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return 0;
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}
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else {
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return 1 /* unsupported */;
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}
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}
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struct discovery {
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const char *service;
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char *buf_alloc;
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char *buf;
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size_t len;
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struct ref *refs;
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unsigned proto_git : 1;
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};
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static struct discovery *last_discovery;
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static struct ref *parse_git_refs(struct discovery *heads, int for_push)
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{
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struct ref *list = NULL;
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get_remote_heads(-1, heads->buf, heads->len, &list,
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for_push ? REF_NORMAL : 0, NULL);
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return list;
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}
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static struct ref *parse_info_refs(struct discovery *heads)
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{
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char *data, *start, *mid;
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char *ref_name;
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int i = 0;
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struct ref *refs = NULL;
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struct ref *ref = NULL;
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struct ref *last_ref = NULL;
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data = heads->buf;
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start = NULL;
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mid = data;
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while (i < heads->len) {
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if (!start) {
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start = &data[i];
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}
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if (data[i] == '\t')
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mid = &data[i];
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if (data[i] == '\n') {
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if (mid - start != 40)
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die("%sinfo/refs not valid: is this a git repository?", url);
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data[i] = 0;
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ref_name = mid + 1;
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ref = xmalloc(sizeof(struct ref) +
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strlen(ref_name) + 1);
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memset(ref, 0, sizeof(struct ref));
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strcpy(ref->name, ref_name);
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get_sha1_hex(start, ref->old_sha1);
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if (!refs)
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refs = ref;
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if (last_ref)
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last_ref->next = ref;
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last_ref = ref;
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start = NULL;
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}
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i++;
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}
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ref = alloc_ref("HEAD");
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if (!http_fetch_ref(url, ref) &&
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!resolve_remote_symref(ref, refs)) {
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ref->next = refs;
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refs = ref;
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} else {
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free(ref);
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}
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return refs;
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}
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static void free_discovery(struct discovery *d)
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{
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if (d) {
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if (d == last_discovery)
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last_discovery = NULL;
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free(d->buf_alloc);
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free_refs(d->refs);
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free(d);
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}
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}
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static int show_http_message(struct strbuf *type, struct strbuf *msg)
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{
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const char *p, *eol;
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/*
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* We only show text/plain parts, as other types are likely
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* to be ugly to look at on the user's terminal.
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*
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* TODO should handle "; charset=XXX", and re-encode into
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* logoutputencoding
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*/
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if (strcasecmp(type->buf, "text/plain"))
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return -1;
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strbuf_trim(msg);
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if (!msg->len)
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return -1;
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p = msg->buf;
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do {
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eol = strchrnul(p, '\n');
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fprintf(stderr, "remote: %.*s\n", (int)(eol - p), p);
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p = eol + 1;
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} while(*eol);
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return 0;
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}
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static struct discovery* discover_refs(const char *service, int for_push)
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{
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struct strbuf exp = STRBUF_INIT;
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struct strbuf type = STRBUF_INIT;
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struct strbuf buffer = STRBUF_INIT;
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struct discovery *last = last_discovery;
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char *refs_url;
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int http_ret, maybe_smart = 0;
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struct http_get_options options;
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if (last && !strcmp(service, last->service))
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return last;
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free_discovery(last);
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strbuf_addf(&buffer, "%sinfo/refs", url);
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if ((!prefixcmp(url, "http://") || !prefixcmp(url, "https://")) &&
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git_env_bool("GIT_SMART_HTTP", 1)) {
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maybe_smart = 1;
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if (!strchr(url, '?'))
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strbuf_addch(&buffer, '?');
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else
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strbuf_addch(&buffer, '&');
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strbuf_addf(&buffer, "service=%s", service);
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}
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refs_url = strbuf_detach(&buffer, NULL);
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memset(&options, 0, sizeof(options));
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options.content_type = &type;
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options.no_cache = 1;
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options.keep_error = 1;
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http_ret = http_get_strbuf(refs_url, &buffer, &options);
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switch (http_ret) {
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case HTTP_OK:
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break;
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case HTTP_MISSING_TARGET:
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show_http_message(&type, &buffer);
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die("repository '%s' not found", url);
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case HTTP_NOAUTH:
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show_http_message(&type, &buffer);
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die("Authentication failed for '%s'", url);
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default:
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show_http_message(&type, &buffer);
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die("unable to access '%s': %s", url, curl_errorstr);
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}
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last= xcalloc(1, sizeof(*last_discovery));
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last->service = service;
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last->buf_alloc = strbuf_detach(&buffer, &last->len);
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last->buf = last->buf_alloc;
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strbuf_addf(&exp, "application/x-%s-advertisement", service);
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if (maybe_smart &&
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(5 <= last->len && last->buf[4] == '#') &&
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!strbuf_cmp(&exp, &type)) {
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char *line;
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/*
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* smart HTTP response; validate that the service
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* pkt-line matches our request.
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*/
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line = packet_read_line_buf(&last->buf, &last->len, NULL);
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strbuf_reset(&exp);
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strbuf_addf(&exp, "# service=%s", service);
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if (strcmp(line, exp.buf))
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die("invalid server response; got '%s'", line);
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strbuf_release(&exp);
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/* The header can include additional metadata lines, up
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* until a packet flush marker. Ignore these now, but
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* in the future we might start to scan them.
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*/
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while (packet_read_line_buf(&last->buf, &last->len, NULL))
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;
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last->proto_git = 1;
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}
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if (last->proto_git)
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last->refs = parse_git_refs(last, for_push);
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else
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last->refs = parse_info_refs(last);
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free(refs_url);
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strbuf_release(&exp);
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strbuf_release(&type);
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strbuf_release(&buffer);
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last_discovery = last;
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return last;
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}
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static struct ref *get_refs(int for_push)
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{
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struct discovery *heads;
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if (for_push)
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heads = discover_refs("git-receive-pack", for_push);
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else
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heads = discover_refs("git-upload-pack", for_push);
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return heads->refs;
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}
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static void output_refs(struct ref *refs)
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{
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struct ref *posn;
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for (posn = refs; posn; posn = posn->next) {
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if (posn->symref)
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printf("@%s %s\n", posn->symref, posn->name);
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else
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printf("%s %s\n", sha1_to_hex(posn->old_sha1), posn->name);
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}
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printf("\n");
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fflush(stdout);
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}
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struct rpc_state {
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const char *service_name;
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const char **argv;
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struct strbuf *stdin_preamble;
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char *service_url;
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char *hdr_content_type;
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char *hdr_accept;
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char *buf;
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size_t alloc;
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size_t len;
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size_t pos;
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int in;
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int out;
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struct strbuf result;
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unsigned gzip_request : 1;
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unsigned initial_buffer : 1;
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};
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static size_t rpc_out(void *ptr, size_t eltsize,
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size_t nmemb, void *buffer_)
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{
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size_t max = eltsize * nmemb;
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struct rpc_state *rpc = buffer_;
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size_t avail = rpc->len - rpc->pos;
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if (!avail) {
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rpc->initial_buffer = 0;
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avail = packet_read(rpc->out, NULL, NULL, rpc->buf, rpc->alloc, 0);
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if (!avail)
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return 0;
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rpc->pos = 0;
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rpc->len = avail;
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}
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if (max < avail)
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avail = max;
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memcpy(ptr, rpc->buf + rpc->pos, avail);
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rpc->pos += avail;
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return avail;
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}
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#ifndef NO_CURL_IOCTL
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static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp)
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{
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struct rpc_state *rpc = clientp;
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switch (cmd) {
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case CURLIOCMD_NOP:
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return CURLIOE_OK;
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case CURLIOCMD_RESTARTREAD:
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if (rpc->initial_buffer) {
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rpc->pos = 0;
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return CURLIOE_OK;
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}
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fprintf(stderr, "Unable to rewind rpc post data - try increasing http.postBuffer\n");
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return CURLIOE_FAILRESTART;
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default:
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return CURLIOE_UNKNOWNCMD;
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}
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}
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#endif
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static size_t rpc_in(char *ptr, size_t eltsize,
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size_t nmemb, void *buffer_)
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{
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size_t size = eltsize * nmemb;
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struct rpc_state *rpc = buffer_;
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write_or_die(rpc->in, ptr, size);
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return size;
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}
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static int run_slot(struct active_request_slot *slot)
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{
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int err;
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struct slot_results results;
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slot->results = &results;
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slot->curl_result = curl_easy_perform(slot->curl);
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finish_active_slot(slot);
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err = handle_curl_result(&results);
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if (err != HTTP_OK && err != HTTP_REAUTH) {
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error("RPC failed; result=%d, HTTP code = %ld",
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results.curl_result, results.http_code);
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}
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return err;
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}
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static int probe_rpc(struct rpc_state *rpc)
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{
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struct active_request_slot *slot;
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struct curl_slist *headers = NULL;
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struct strbuf buf = STRBUF_INIT;
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int err;
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slot = get_active_slot();
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headers = curl_slist_append(headers, rpc->hdr_content_type);
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headers = curl_slist_append(headers, rpc->hdr_accept);
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curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
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curl_easy_setopt(slot->curl, CURLOPT_POST, 1);
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curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url);
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curl_easy_setopt(slot->curl, CURLOPT_ENCODING, NULL);
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curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, "0000");
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curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, 4);
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curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
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curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
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curl_easy_setopt(slot->curl, CURLOPT_FILE, &buf);
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err = run_slot(slot);
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curl_slist_free_all(headers);
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strbuf_release(&buf);
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return err;
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}
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static int post_rpc(struct rpc_state *rpc)
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{
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struct active_request_slot *slot;
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struct curl_slist *headers = NULL;
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int use_gzip = rpc->gzip_request;
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char *gzip_body = NULL;
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size_t gzip_size = 0;
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int err, large_request = 0;
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/* Try to load the entire request, if we can fit it into the
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* allocated buffer space we can use HTTP/1.0 and avoid the
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* chunked encoding mess.
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*/
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while (1) {
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size_t left = rpc->alloc - rpc->len;
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char *buf = rpc->buf + rpc->len;
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int n;
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if (left < LARGE_PACKET_MAX) {
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large_request = 1;
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use_gzip = 0;
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break;
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}
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n = packet_read(rpc->out, NULL, NULL, buf, left, 0);
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if (!n)
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break;
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rpc->len += n;
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}
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if (large_request) {
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do {
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err = probe_rpc(rpc);
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} while (err == HTTP_REAUTH);
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if (err != HTTP_OK)
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return -1;
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}
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headers = curl_slist_append(headers, rpc->hdr_content_type);
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headers = curl_slist_append(headers, rpc->hdr_accept);
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headers = curl_slist_append(headers, "Expect:");
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retry:
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slot = get_active_slot();
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curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
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curl_easy_setopt(slot->curl, CURLOPT_POST, 1);
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curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url);
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curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip");
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if (large_request) {
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/* The request body is large and the size cannot be predicted.
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* We must use chunked encoding to send it.
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*/
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headers = curl_slist_append(headers, "Transfer-Encoding: chunked");
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rpc->initial_buffer = 1;
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curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, rpc_out);
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curl_easy_setopt(slot->curl, CURLOPT_INFILE, rpc);
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#ifndef NO_CURL_IOCTL
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curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, rpc_ioctl);
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curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, rpc);
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#endif
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if (options.verbosity > 1) {
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fprintf(stderr, "POST %s (chunked)\n", rpc->service_name);
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fflush(stderr);
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}
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} else if (gzip_body) {
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/*
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* If we are looping to retry authentication, then the previous
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* run will have set up the headers and gzip buffer already,
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* and we just need to send it.
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*/
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curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body);
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curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, gzip_size);
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} else if (use_gzip && 1024 < rpc->len) {
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/* The client backend isn't giving us compressed data so
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* we can try to deflate it ourselves, this may save on.
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* the transfer time.
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*/
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git_zstream stream;
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int ret;
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memset(&stream, 0, sizeof(stream));
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git_deflate_init_gzip(&stream, Z_BEST_COMPRESSION);
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gzip_size = git_deflate_bound(&stream, rpc->len);
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gzip_body = xmalloc(gzip_size);
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stream.next_in = (unsigned char *)rpc->buf;
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stream.avail_in = rpc->len;
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stream.next_out = (unsigned char *)gzip_body;
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stream.avail_out = gzip_size;
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ret = git_deflate(&stream, Z_FINISH);
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if (ret != Z_STREAM_END)
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die("cannot deflate request; zlib deflate error %d", ret);
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|
|
ret = git_deflate_end_gently(&stream);
|
|
if (ret != Z_OK)
|
|
die("cannot deflate request; zlib end error %d", ret);
|
|
|
|
gzip_size = stream.total_out;
|
|
|
|
headers = curl_slist_append(headers, "Content-Encoding: gzip");
|
|
curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body);
|
|
curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, gzip_size);
|
|
|
|
if (options.verbosity > 1) {
|
|
fprintf(stderr, "POST %s (gzip %lu to %lu bytes)\n",
|
|
rpc->service_name,
|
|
(unsigned long)rpc->len, (unsigned long)gzip_size);
|
|
fflush(stderr);
|
|
}
|
|
} else {
|
|
/* We know the complete request size in advance, use the
|
|
* more normal Content-Length approach.
|
|
*/
|
|
curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, rpc->buf);
|
|
curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, rpc->len);
|
|
if (options.verbosity > 1) {
|
|
fprintf(stderr, "POST %s (%lu bytes)\n",
|
|
rpc->service_name, (unsigned long)rpc->len);
|
|
fflush(stderr);
|
|
}
|
|
}
|
|
|
|
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
|
|
curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, rpc_in);
|
|
curl_easy_setopt(slot->curl, CURLOPT_FILE, rpc);
|
|
|
|
err = run_slot(slot);
|
|
if (err == HTTP_REAUTH && !large_request)
|
|
goto retry;
|
|
if (err != HTTP_OK)
|
|
err = -1;
|
|
|
|
curl_slist_free_all(headers);
|
|
free(gzip_body);
|
|
return err;
|
|
}
|
|
|
|
static int rpc_service(struct rpc_state *rpc, struct discovery *heads)
|
|
{
|
|
const char *svc = rpc->service_name;
|
|
struct strbuf buf = STRBUF_INIT;
|
|
struct strbuf *preamble = rpc->stdin_preamble;
|
|
struct child_process client;
|
|
int err = 0;
|
|
|
|
memset(&client, 0, sizeof(client));
|
|
client.in = -1;
|
|
client.out = -1;
|
|
client.git_cmd = 1;
|
|
client.argv = rpc->argv;
|
|
if (start_command(&client))
|
|
exit(1);
|
|
if (preamble)
|
|
write_or_die(client.in, preamble->buf, preamble->len);
|
|
if (heads)
|
|
write_or_die(client.in, heads->buf, heads->len);
|
|
|
|
rpc->alloc = http_post_buffer;
|
|
rpc->buf = xmalloc(rpc->alloc);
|
|
rpc->in = client.in;
|
|
rpc->out = client.out;
|
|
strbuf_init(&rpc->result, 0);
|
|
|
|
strbuf_addf(&buf, "%s%s", url, svc);
|
|
rpc->service_url = strbuf_detach(&buf, NULL);
|
|
|
|
strbuf_addf(&buf, "Content-Type: application/x-%s-request", svc);
|
|
rpc->hdr_content_type = strbuf_detach(&buf, NULL);
|
|
|
|
strbuf_addf(&buf, "Accept: application/x-%s-result", svc);
|
|
rpc->hdr_accept = strbuf_detach(&buf, NULL);
|
|
|
|
while (!err) {
|
|
int n = packet_read(rpc->out, NULL, NULL, rpc->buf, rpc->alloc, 0);
|
|
if (!n)
|
|
break;
|
|
rpc->pos = 0;
|
|
rpc->len = n;
|
|
err |= post_rpc(rpc);
|
|
}
|
|
|
|
close(client.in);
|
|
client.in = -1;
|
|
if (!err) {
|
|
strbuf_read(&rpc->result, client.out, 0);
|
|
} else {
|
|
char buf[4096];
|
|
for (;;)
|
|
if (xread(client.out, buf, sizeof(buf)) <= 0)
|
|
break;
|
|
}
|
|
|
|
close(client.out);
|
|
client.out = -1;
|
|
|
|
err |= finish_command(&client);
|
|
free(rpc->service_url);
|
|
free(rpc->hdr_content_type);
|
|
free(rpc->hdr_accept);
|
|
free(rpc->buf);
|
|
strbuf_release(&buf);
|
|
return err;
|
|
}
|
|
|
|
static int fetch_dumb(int nr_heads, struct ref **to_fetch)
|
|
{
|
|
struct walker *walker;
|
|
char **targets = xmalloc(nr_heads * sizeof(char*));
|
|
int ret, i;
|
|
|
|
if (options.depth)
|
|
die("dumb http transport does not support --depth");
|
|
for (i = 0; i < nr_heads; i++)
|
|
targets[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1));
|
|
|
|
walker = get_http_walker(url);
|
|
walker->get_all = 1;
|
|
walker->get_tree = 1;
|
|
walker->get_history = 1;
|
|
walker->get_verbosely = options.verbosity >= 3;
|
|
walker->get_recover = 0;
|
|
ret = walker_fetch(walker, nr_heads, targets, NULL, NULL);
|
|
walker_free(walker);
|
|
|
|
for (i = 0; i < nr_heads; i++)
|
|
free(targets[i]);
|
|
free(targets);
|
|
|
|
return ret ? error("Fetch failed.") : 0;
|
|
}
|
|
|
|
static int fetch_git(struct discovery *heads,
|
|
int nr_heads, struct ref **to_fetch)
|
|
{
|
|
struct rpc_state rpc;
|
|
struct strbuf preamble = STRBUF_INIT;
|
|
char *depth_arg = NULL;
|
|
int argc = 0, i, err;
|
|
const char *argv[15];
|
|
|
|
argv[argc++] = "fetch-pack";
|
|
argv[argc++] = "--stateless-rpc";
|
|
argv[argc++] = "--stdin";
|
|
argv[argc++] = "--lock-pack";
|
|
if (options.followtags)
|
|
argv[argc++] = "--include-tag";
|
|
if (options.thin)
|
|
argv[argc++] = "--thin";
|
|
if (options.verbosity >= 3) {
|
|
argv[argc++] = "-v";
|
|
argv[argc++] = "-v";
|
|
}
|
|
if (!options.progress)
|
|
argv[argc++] = "--no-progress";
|
|
if (options.depth) {
|
|
struct strbuf buf = STRBUF_INIT;
|
|
strbuf_addf(&buf, "--depth=%lu", options.depth);
|
|
depth_arg = strbuf_detach(&buf, NULL);
|
|
argv[argc++] = depth_arg;
|
|
}
|
|
argv[argc++] = url;
|
|
argv[argc++] = NULL;
|
|
|
|
for (i = 0; i < nr_heads; i++) {
|
|
struct ref *ref = to_fetch[i];
|
|
if (!ref->name || !*ref->name)
|
|
die("cannot fetch by sha1 over smart http");
|
|
packet_buf_write(&preamble, "%s\n", ref->name);
|
|
}
|
|
packet_buf_flush(&preamble);
|
|
|
|
memset(&rpc, 0, sizeof(rpc));
|
|
rpc.service_name = "git-upload-pack",
|
|
rpc.argv = argv;
|
|
rpc.stdin_preamble = &preamble;
|
|
rpc.gzip_request = 1;
|
|
|
|
err = rpc_service(&rpc, heads);
|
|
if (rpc.result.len)
|
|
write_or_die(1, rpc.result.buf, rpc.result.len);
|
|
strbuf_release(&rpc.result);
|
|
strbuf_release(&preamble);
|
|
free(depth_arg);
|
|
return err;
|
|
}
|
|
|
|
static int fetch(int nr_heads, struct ref **to_fetch)
|
|
{
|
|
struct discovery *d = discover_refs("git-upload-pack", 0);
|
|
if (d->proto_git)
|
|
return fetch_git(d, nr_heads, to_fetch);
|
|
else
|
|
return fetch_dumb(nr_heads, to_fetch);
|
|
}
|
|
|
|
static void parse_fetch(struct strbuf *buf)
|
|
{
|
|
struct ref **to_fetch = NULL;
|
|
struct ref *list_head = NULL;
|
|
struct ref **list = &list_head;
|
|
int alloc_heads = 0, nr_heads = 0;
|
|
|
|
do {
|
|
if (!prefixcmp(buf->buf, "fetch ")) {
|
|
char *p = buf->buf + strlen("fetch ");
|
|
char *name;
|
|
struct ref *ref;
|
|
unsigned char old_sha1[20];
|
|
|
|
if (strlen(p) < 40 || get_sha1_hex(p, old_sha1))
|
|
die("protocol error: expected sha/ref, got %s'", p);
|
|
if (p[40] == ' ')
|
|
name = p + 41;
|
|
else if (!p[40])
|
|
name = "";
|
|
else
|
|
die("protocol error: expected sha/ref, got %s'", p);
|
|
|
|
ref = alloc_ref(name);
|
|
hashcpy(ref->old_sha1, old_sha1);
|
|
|
|
*list = ref;
|
|
list = &ref->next;
|
|
|
|
ALLOC_GROW(to_fetch, nr_heads + 1, alloc_heads);
|
|
to_fetch[nr_heads++] = ref;
|
|
}
|
|
else
|
|
die("http transport does not support %s", buf->buf);
|
|
|
|
strbuf_reset(buf);
|
|
if (strbuf_getline(buf, stdin, '\n') == EOF)
|
|
return;
|
|
if (!*buf->buf)
|
|
break;
|
|
} while (1);
|
|
|
|
if (fetch(nr_heads, to_fetch))
|
|
exit(128); /* error already reported */
|
|
free_refs(list_head);
|
|
free(to_fetch);
|
|
|
|
printf("\n");
|
|
fflush(stdout);
|
|
strbuf_reset(buf);
|
|
}
|
|
|
|
static int push_dav(int nr_spec, char **specs)
|
|
{
|
|
const char **argv = xmalloc((10 + nr_spec) * sizeof(char*));
|
|
int argc = 0, i;
|
|
|
|
argv[argc++] = "http-push";
|
|
argv[argc++] = "--helper-status";
|
|
if (options.dry_run)
|
|
argv[argc++] = "--dry-run";
|
|
if (options.verbosity > 1)
|
|
argv[argc++] = "--verbose";
|
|
argv[argc++] = url;
|
|
for (i = 0; i < nr_spec; i++)
|
|
argv[argc++] = specs[i];
|
|
argv[argc++] = NULL;
|
|
|
|
if (run_command_v_opt(argv, RUN_GIT_CMD))
|
|
die("git-%s failed", argv[0]);
|
|
free(argv);
|
|
return 0;
|
|
}
|
|
|
|
static int push_git(struct discovery *heads, int nr_spec, char **specs)
|
|
{
|
|
struct rpc_state rpc;
|
|
int i, err;
|
|
struct argv_array args;
|
|
|
|
argv_array_init(&args);
|
|
argv_array_pushl(&args, "send-pack", "--stateless-rpc", "--helper-status",
|
|
NULL);
|
|
|
|
if (options.thin)
|
|
argv_array_push(&args, "--thin");
|
|
if (options.dry_run)
|
|
argv_array_push(&args, "--dry-run");
|
|
if (options.verbosity == 0)
|
|
argv_array_push(&args, "--quiet");
|
|
else if (options.verbosity > 1)
|
|
argv_array_push(&args, "--verbose");
|
|
argv_array_push(&args, options.progress ? "--progress" : "--no-progress");
|
|
argv_array_push(&args, url);
|
|
for (i = 0; i < nr_spec; i++)
|
|
argv_array_push(&args, specs[i]);
|
|
|
|
memset(&rpc, 0, sizeof(rpc));
|
|
rpc.service_name = "git-receive-pack",
|
|
rpc.argv = args.argv;
|
|
|
|
err = rpc_service(&rpc, heads);
|
|
if (rpc.result.len)
|
|
write_or_die(1, rpc.result.buf, rpc.result.len);
|
|
strbuf_release(&rpc.result);
|
|
argv_array_clear(&args);
|
|
return err;
|
|
}
|
|
|
|
static int push(int nr_spec, char **specs)
|
|
{
|
|
struct discovery *heads = discover_refs("git-receive-pack", 1);
|
|
int ret;
|
|
|
|
if (heads->proto_git)
|
|
ret = push_git(heads, nr_spec, specs);
|
|
else
|
|
ret = push_dav(nr_spec, specs);
|
|
free_discovery(heads);
|
|
return ret;
|
|
}
|
|
|
|
static void parse_push(struct strbuf *buf)
|
|
{
|
|
char **specs = NULL;
|
|
int alloc_spec = 0, nr_spec = 0, i, ret;
|
|
|
|
do {
|
|
if (!prefixcmp(buf->buf, "push ")) {
|
|
ALLOC_GROW(specs, nr_spec + 1, alloc_spec);
|
|
specs[nr_spec++] = xstrdup(buf->buf + 5);
|
|
}
|
|
else
|
|
die("http transport does not support %s", buf->buf);
|
|
|
|
strbuf_reset(buf);
|
|
if (strbuf_getline(buf, stdin, '\n') == EOF)
|
|
goto free_specs;
|
|
if (!*buf->buf)
|
|
break;
|
|
} while (1);
|
|
|
|
ret = push(nr_spec, specs);
|
|
printf("\n");
|
|
fflush(stdout);
|
|
|
|
if (ret)
|
|
exit(128); /* error already reported */
|
|
|
|
free_specs:
|
|
for (i = 0; i < nr_spec; i++)
|
|
free(specs[i]);
|
|
free(specs);
|
|
}
|
|
|
|
int main(int argc, const char **argv)
|
|
{
|
|
struct strbuf buf = STRBUF_INIT;
|
|
int nongit;
|
|
|
|
git_extract_argv0_path(argv[0]);
|
|
setup_git_directory_gently(&nongit);
|
|
if (argc < 2) {
|
|
fprintf(stderr, "Remote needed\n");
|
|
return 1;
|
|
}
|
|
|
|
options.verbosity = 1;
|
|
options.progress = !!isatty(2);
|
|
options.thin = 1;
|
|
|
|
remote = remote_get(argv[1]);
|
|
|
|
if (argc > 2) {
|
|
end_url_with_slash(&buf, argv[2]);
|
|
} else {
|
|
end_url_with_slash(&buf, remote->url[0]);
|
|
}
|
|
|
|
url = strbuf_detach(&buf, NULL);
|
|
|
|
http_init(remote, url, 0);
|
|
|
|
do {
|
|
if (strbuf_getline(&buf, stdin, '\n') == EOF) {
|
|
if (ferror(stdin))
|
|
fprintf(stderr, "Error reading command stream\n");
|
|
else
|
|
fprintf(stderr, "Unexpected end of command stream\n");
|
|
return 1;
|
|
}
|
|
if (buf.len == 0)
|
|
break;
|
|
if (!prefixcmp(buf.buf, "fetch ")) {
|
|
if (nongit)
|
|
die("Fetch attempted without a local repo");
|
|
parse_fetch(&buf);
|
|
|
|
} else if (!strcmp(buf.buf, "list") || !prefixcmp(buf.buf, "list ")) {
|
|
int for_push = !!strstr(buf.buf + 4, "for-push");
|
|
output_refs(get_refs(for_push));
|
|
|
|
} else if (!prefixcmp(buf.buf, "push ")) {
|
|
parse_push(&buf);
|
|
|
|
} else if (!prefixcmp(buf.buf, "option ")) {
|
|
char *name = buf.buf + strlen("option ");
|
|
char *value = strchr(name, ' ');
|
|
int result;
|
|
|
|
if (value)
|
|
*value++ = '\0';
|
|
else
|
|
value = "true";
|
|
|
|
result = set_option(name, value);
|
|
if (!result)
|
|
printf("ok\n");
|
|
else if (result < 0)
|
|
printf("error invalid value\n");
|
|
else
|
|
printf("unsupported\n");
|
|
fflush(stdout);
|
|
|
|
} else if (!strcmp(buf.buf, "capabilities")) {
|
|
printf("fetch\n");
|
|
printf("option\n");
|
|
printf("push\n");
|
|
printf("\n");
|
|
fflush(stdout);
|
|
} else {
|
|
fprintf(stderr, "Unknown command '%s'\n", buf.buf);
|
|
return 1;
|
|
}
|
|
strbuf_reset(&buf);
|
|
} while (1);
|
|
|
|
http_cleanup();
|
|
|
|
return 0;
|
|
}
|