http-fetch.c

   1 #include "cache.h"
   2 #include "config.h"
   3 #include "exec-cmd.h"
   4 #include "http.h"
   5 #include "walker.h"
   6
   7 static const char http_fetch_usage[] = "git http-fetch "
   8 "[-c] [-t] [-a] [-v] [--recover] [-w ref] [--stdin | --packfile=hash | commit-id] url";
   9
  10 static int fetch_using_walker(const char *raw_url, int get_verbosely,
  11                               int get_recover, int commits, char **commit_id,
  12                               const char **write_ref, int commits_on_stdin)
  13 {
  14         char *url = NULL;
  15         struct walker *walker;
  16         int rc;
  17
  18         str_end_url_with_slash(raw_url, &url);
  19
  20         http_init(NULL, url, 0);
  21
  22         walker = get_http_walker(url);
  23         walker->get_verbosely = get_verbosely;
  24         walker->get_recover = get_recover;
  25         walker->get_progress = 0;
  26
  27         rc = walker_fetch(walker, commits, commit_id, write_ref, url);
  28
  29         if (commits_on_stdin)
  30                 walker_targets_free(commits, commit_id, write_ref);
  31
  32         if (walker->corrupt_object_found) {
  33                 fprintf(stderr,
  34 "Some loose object were found to be corrupt, but they might be just\n"
  35 "a false '404 Not Found' error message sent with incorrect HTTP\n"
  36 "status code.  Suggest running 'git fsck'.\n");
  37         }
  38
  39         walker_free(walker);
  40         http_cleanup();
  41         free(url);
  42
  43         return rc;
  44 }
  45
  46 static void fetch_single_packfile(struct object_id *packfile_hash,
  47                                   const char *url) {
  48         struct http_pack_request *preq;
  49         struct slot_results results;
  50         int ret;
  51
  52         http_init(NULL, url, 0);
  53
  54         preq = new_direct_http_pack_request(packfile_hash->hash, xstrdup(url));
  55         if (preq == NULL)
  56                 die("couldn't create http pack request");
  57         preq->slot->results = &results;
  58         preq->generate_keep = 1;
  59
  60         if (start_active_slot(preq->slot)) {
  61                 run_active_slot(preq->slot);
  62                 if (results.curl_result != CURLE_OK) {
  63                         die("Unable to get pack file %s\n%s", preq->url,
  64                             curl_errorstr);
  65                 }
  66         } else {
  67                 die("Unable to start request");
  68         }
  69
  70         if ((ret = finish_http_pack_request(preq)))
  71                 die("finish_http_pack_request gave result %d", ret);
  72
  73         release_http_pack_request(preq);
  74         http_cleanup();
  75 }
  76
  77 int cmd_main(int argc, const char **argv)
  78 {
  79         int commits_on_stdin = 0;
  80         int commits;
  81         const char **write_ref = NULL;
  82         char **commit_id;
  83         int arg = 1;
  84         int get_verbosely = 0;
  85         int get_recover = 0;
  86         int packfile = 0;
  87         struct object_id packfile_hash;
  88
  89         while (arg < argc && argv[arg][0] == '-') {
  90                 const char *p;
  91
  92                 if (argv[arg][1] == 't') {
  93                 } else if (argv[arg][1] == 'c') {
  94                 } else if (argv[arg][1] == 'a') {
  95                 } else if (argv[arg][1] == 'v') {
  96                         get_verbosely = 1;
  97                 } else if (argv[arg][1] == 'w') {
  98                         write_ref = &argv[arg + 1];
  99                         arg++;
 100                 } else if (argv[arg][1] == 'h') {
 101                         usage(http_fetch_usage);
 102                 } else if (!strcmp(argv[arg], "--recover")) {
 103                         get_recover = 1;
 104                 } else if (!strcmp(argv[arg], "--stdin")) {
 105                         commits_on_stdin = 1;
 106                 } else if (skip_prefix(argv[arg], "--packfile=", &p)) {
 107                         const char *end;
 108
 109                         packfile = 1;
 110                         if (parse_oid_hex(p, &packfile_hash, &end) || *end)
 111                                 die(_("argument to --packfile must be a valid hash (got '%s')"), p);
 112                 }
 113                 arg++;
 114         }
 115         if (argc != arg + 2 - (commits_on_stdin || packfile))
 116                 usage(http_fetch_usage);
 117
 118         setup_git_directory();
 119
 120         git_config(git_default_config, NULL);
 121
 122         if (packfile) {
 123                 fetch_single_packfile(&packfile_hash, argv[arg]);
 124                 return 0;
 125         }
 126
 127         if (commits_on_stdin) {
 128                 commits = walker_targets_stdin(&commit_id, &write_ref);
 129         } else {
 130                 commit_id = (char **) &argv[arg++];
 131                 commits = 1;
 132         }
 133         return fetch_using_walker(argv[arg], get_verbosely, get_recover,
 134                                   commits, commit_id, write_ref,
 135                                   commits_on_stdin);
 136 }