-#include <fcntl.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdlib.h>
#include "cache.h"
#include "commit.h"
-#include <errno.h>
-#include <stdio.h>
+
+#include "pull.h"
#include <curl/curl.h>
#include <curl/easy.h>
+#if LIBCURL_VERSION_NUM < 0x070704
+#define curl_global_cleanup() do { /* nothing */ } while(0)
+#endif
+#if LIBCURL_VERSION_NUM < 0x070800
+#define curl_global_init(a) do { /* nothing */ } while(0)
+#endif
+
static CURL *curl;
static char *base;
-static int tree = 0;
-static int commits = 0;
-static int all = 0;
-
static SHA_CTX c;
static z_stream stream;
static int local;
static int zret;
-static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
- void *data) {
- char expn[4096];
+static int curl_ssl_verify;
+
+struct buffer
+{
+ size_t posn;
+ size_t size;
+ void *buffer;
+};
+
+static size_t fwrite_buffer(void *ptr, size_t eltsize, size_t nmemb,
+ struct buffer *buffer)
+{
+ size_t size = eltsize * nmemb;
+ if (size > buffer->size - buffer->posn)
+ size = buffer->size - buffer->posn;
+ memcpy(buffer->buffer + buffer->posn, ptr, size);
+ buffer->posn += size;
+ return size;
+}
+
+static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
+ void *data)
+{
+ unsigned char expn[4096];
size_t size = eltsize * nmemb;
int posn = 0;
do {
return size;
}
-static int fetch(unsigned char *sha1)
+void prefetch(unsigned char *sha1)
{
- char *hex = sha1_to_hex(sha1);
- char *filename = sha1_file_name(sha1);
- char real_sha1[20];
+}
+
+static int got_indices = 0;
+
+static struct packed_git *packs = NULL;
+
+static int fetch_index(unsigned char *sha1)
+{
+ char *filename;
char *url;
- char *posn;
- if (has_sha1_file(sha1)) {
+ FILE *indexfile;
+
+ if (has_pack_index(sha1))
return 0;
+
+ if (get_verbosely)
+ fprintf(stderr, "Getting index for pack %s\n",
+ sha1_to_hex(sha1));
+
+ url = xmalloc(strlen(base) + 64);
+ sprintf(url, "%s/objects/pack/pack-%s.idx",
+ base, sha1_to_hex(sha1));
+
+ filename = sha1_pack_index_name(sha1);
+ indexfile = fopen(filename, "w");
+ if (!indexfile)
+ return error("Unable to open local file %s for pack index",
+ filename);
+
+ curl_easy_setopt(curl, CURLOPT_FILE, indexfile);
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fwrite);
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+
+ if (curl_easy_perform(curl)) {
+ fclose(indexfile);
+ return error("Unable to get pack index %s", url);
}
+ fclose(indexfile);
+ return 0;
+}
+
+static int setup_index(unsigned char *sha1)
+{
+ struct packed_git *new_pack;
+ if (has_pack_file(sha1))
+ return 0; // don't list this as something we can get
+
+ if (fetch_index(sha1))
+ return -1;
+
+ new_pack = parse_pack_index(sha1);
+ new_pack->next = packs;
+ packs = new_pack;
+ return 0;
+}
+
+static int fetch_indices(void)
+{
+ unsigned char sha1[20];
+ char *url;
+ struct buffer buffer;
+ char *data;
+ int i = 0;
+
+ if (got_indices)
+ return 0;
+
+ data = xmalloc(4096);
+ buffer.size = 4096;
+ buffer.posn = 0;
+ buffer.buffer = data;
+
+ if (get_verbosely)
+ fprintf(stderr, "Getting pack list\n");
+
+ url = xmalloc(strlen(base) + 21);
+ sprintf(url, "%s/objects/info/packs", base);
+
+ curl_easy_setopt(curl, CURLOPT_FILE, &buffer);
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+
+ if (curl_easy_perform(curl)) {
+ return error("Unable to get pack index %s", url);
+ }
+
+ do {
+ 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++;
+ } while (i < buffer.posn);
+
+ got_indices = 1;
+ return 0;
+}
+
+static int fetch_pack(unsigned char *sha1)
+{
+ char *url;
+ struct packed_git *target;
+ struct packed_git **lst;
+ FILE *packfile;
+ char *filename;
+
+ if (fetch_indices())
+ return -1;
+ target = find_sha1_pack(sha1, packs);
+ if (!target)
+ return error("Couldn't get %s: not separate or in any pack",
+ sha1_to_hex(sha1));
+
+ if (get_verbosely) {
+ fprintf(stderr, "Getting pack %s\n",
+ sha1_to_hex(target->sha1));
+ fprintf(stderr, " which contains %s\n",
+ sha1_to_hex(sha1));
+ }
+
+ url = xmalloc(strlen(base) + 65);
+ sprintf(url, "%s/objects/pack/pack-%s.pack",
+ base, sha1_to_hex(target->sha1));
+
+ filename = sha1_pack_name(target->sha1);
+ packfile = fopen(filename, "w");
+ if (!packfile)
+ return error("Unable to open local file %s for pack",
+ filename);
+
+ curl_easy_setopt(curl, CURLOPT_FILE, packfile);
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fwrite);
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+
+ if (curl_easy_perform(curl)) {
+ fclose(packfile);
+ return error("Unable to get pack file %s", url);
+ }
+
+ fclose(packfile);
+
+ lst = &packs;
+ while (*lst != target)
+ lst = &((*lst)->next);
+ *lst = (*lst)->next;
+
+ install_packed_git(target);
+
+ return 0;
+}
+
+int fetch(unsigned char *sha1)
+{
+ char *hex = sha1_to_hex(sha1);
+ char *filename = sha1_file_name(sha1);
+ unsigned char real_sha1[20];
+ char *url;
+ char *posn;
+
local = open(filename, O_WRONLY | O_CREAT | O_EXCL, 0666);
if (local < 0)
- return error("Couldn't open %s\n", filename);
+ return error("Couldn't open local object %s\n", filename);
memset(&stream, 0, sizeof(stream));
SHA1_Init(&c);
+ curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1);
curl_easy_setopt(curl, CURLOPT_FILE, NULL);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
curl_easy_setopt(curl, CURLOPT_URL, url);
- /*printf("Getting %s\n", hex);*/
-
- if (curl_easy_perform(curl))
- return error("Couldn't get %s for %s\n", url, hex);
+ if (curl_easy_perform(curl)) {
+ unlink(filename);
+ if (fetch_pack(sha1))
+ return error("Tried %s", url);
+ return 0;
+ }
close(local);
inflateEnd(&stream);
return error("File %s has bad hash\n", hex);
}
+ pull_say("got %s\n", hex);
return 0;
}
-static int process_tree(unsigned char *sha1)
+int fetch_ref(char *ref, unsigned char *sha1)
{
- struct tree *tree = lookup_tree(sha1);
- struct tree_entry_list *entries;
-
- if (parse_tree(tree))
- return -1;
-
- for (entries = tree->entries; entries; entries = entries->next) {
- if (fetch(entries->item.tree->object.sha1))
- return -1;
- if (entries->directory) {
- if (process_tree(entries->item.tree->object.sha1))
- return -1;
- }
- }
- return 0;
-}
-
-static int process_commit(unsigned char *sha1)
-{
- struct commit *obj = lookup_commit(sha1);
-
- if (fetch(sha1))
- return -1;
-
- if (parse_commit(obj))
- return -1;
-
- if (tree) {
- if (fetch(obj->tree->object.sha1))
- return -1;
- if (process_tree(obj->tree->object.sha1))
- return -1;
- if (!all)
- tree = 0;
- }
- if (commits) {
- struct commit_list *parents = obj->parents;
- for (; parents; parents = parents->next) {
- if (has_sha1_file(parents->item->object.sha1))
- continue;
- if (fetch(parents->item->object.sha1)) {
- /* The server might not have it, and
- * we don't mind.
- */
- continue;
- }
- if (process_commit(parents->item->object.sha1))
- return -1;
- }
- }
- return 0;
+ char *url, *posn;
+ char hex[42];
+ struct buffer buffer;
+ buffer.size = 41;
+ buffer.posn = 0;
+ buffer.buffer = hex;
+ hex[41] = '\0';
+
+ curl_easy_setopt(curl, CURLOPT_FILE, &buffer);
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
+
+ url = xmalloc(strlen(base) + 6 + strlen(ref));
+ strcpy(url, base);
+ posn = url + strlen(base);
+ strcpy(posn, "refs/");
+ posn += 5;
+ strcpy(posn, ref);
+
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+
+ if (curl_easy_perform(curl))
+ return error("Couldn't get %s for %s\n", url, ref);
+
+ hex[40] = '\0';
+ get_sha1_hex(hex, sha1);
+ return 0;
}
int main(int argc, char **argv)
char *commit_id;
char *url;
int arg = 1;
- unsigned char sha1[20];
while (arg < argc && argv[arg][0] == '-') {
if (argv[arg][1] == 't') {
- tree = 1;
+ get_tree = 1;
} else if (argv[arg][1] == 'c') {
- commits = 1;
+ get_history = 1;
} else if (argv[arg][1] == 'a') {
- all = 1;
- tree = 1;
- commits = 1;
+ get_all = 1;
+ get_tree = 1;
+ get_history = 1;
+ } else if (argv[arg][1] == 'v') {
+ get_verbosely = 1;
+ } else if (argv[arg][1] == 'w') {
+ write_ref = argv[arg + 1];
+ arg++;
}
arg++;
}
if (argc < arg + 2) {
- usage("http-pull [-c] [-t] [-a] commit-id url");
+ usage("git-http-pull [-c] [-t] [-a] [-d] [-v] [--recover] [-w ref] commit-id url");
return 1;
}
commit_id = argv[arg];
url = argv[arg + 1];
- get_sha1_hex(commit_id, sha1);
-
curl_global_init(CURL_GLOBAL_ALL);
curl = curl_easy_init();
+ curl_ssl_verify = gitenv("GIT_SSL_NO_VERIFY") ? 0 : 1;
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, curl_ssl_verify);
+#if LIBCURL_VERSION_NUM >= 0x070907
+ curl_easy_setopt(curl, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
+#endif
+
base = url;
- if (fetch(sha1))
- return 1;
- if (process_commit(sha1))
+ if (pull(commit_id))
return 1;
curl_global_cleanup();