t/helper/test-proc-receive.c

   1 #include "cache.h"
   2 #include "connect.h"
   3 #include "parse-options.h"
   4 #include "pkt-line.h"
   5 #include "sigchain.h"
   6 #include "test-tool.h"
   7
   8 static const char *proc_receive_usage[] = {
   9         "test-tool proc-receive [<options>]",
  10         NULL
  11 };
  12
  13 static int die_read_version;
  14 static int die_write_version;
  15 static int die_read_commands;
  16 static int die_read_push_options;
  17 static int die_write_report;
  18 static int no_push_options;
  19 static int use_atomic;
  20 static int use_push_options;
  21 static int verbose;
  22 static int version = 1;
  23 static struct string_list returns = STRING_LIST_INIT_NODUP;
  24
  25 struct command {
  26         struct command *next;
  27         const char *error_string;
  28         unsigned int skip_update:1,
  29                      did_not_exist:1;
  30         int index;
  31         struct object_id old_oid;
  32         struct object_id new_oid;
  33         char ref_name[FLEX_ARRAY]; /* more */
  34 };
  35
  36 static void proc_receive_verison(struct packet_reader *reader) {
  37         int server_version = 0;
  38
  39         if (die_read_version)
  40                 die("die with the --die-read-version option");
  41
  42         for (;;) {
  43                 int linelen;
  44
  45                 if (packet_reader_read(reader) != PACKET_READ_NORMAL)
  46                         break;
  47
  48                 /* Ignore version negotiation for version 0 */
  49                 if (version == 0)
  50                         continue;
  51
  52                 if (reader->pktlen > 8 && starts_with(reader->line, "version=")) {
  53                         server_version = atoi(reader->line+8);
  54                         if (server_version != 1)
  55                                 die("bad protocol version: %d", server_version);
  56                         linelen = strlen(reader->line);
  57                         if (linelen < reader->pktlen) {
  58                                 const char *feature_list = reader->line + linelen + 1;
  59                                 if (parse_feature_request(feature_list, "atomic"))
  60                                         use_atomic= 1;
  61                                 if (parse_feature_request(feature_list, "push-options"))
  62                                         use_push_options = 1;
  63                         }
  64                 }
  65         }
  66
  67         if (die_write_version)
  68                 die("die with the --die-write-version option");
  69
  70         if (version != 0)
  71                 packet_write_fmt(1, "version=%d%c%s\n",
  72                                  version, '\0',
  73                                  use_push_options && !no_push_options ? "push-options": "");
  74         packet_flush(1);
  75 }
  76
  77 static void proc_receive_read_commands(struct packet_reader *reader,
  78                                        struct command **commands)
  79 {
  80         struct command **tail = commands;
  81
  82         for (;;) {
  83                 struct object_id old_oid, new_oid;
  84                 struct command *cmd;
  85                 const char *refname;
  86                 const char *p;
  87
  88                 if (packet_reader_read(reader) != PACKET_READ_NORMAL)
  89                         break;
  90
  91                 if (die_read_commands)
  92                         die("die with the --die-read-commands option");
  93
  94                 if (parse_oid_hex(reader->line, &old_oid, &p) ||
  95                     *p++ != ' ' ||
  96                     parse_oid_hex(p, &new_oid, &p) ||
  97                     *p++ != ' ')
  98                         die("protocol error: expected 'old new ref', got '%s'",
  99                             reader->line);
 100                 refname = p;
 101                 FLEX_ALLOC_STR(cmd, ref_name, refname);
 102                 oidcpy(&cmd->old_oid, &old_oid);
 103                 oidcpy(&cmd->new_oid, &new_oid);
 104
 105                 *tail = cmd;
 106                 tail = &cmd->next;
 107         }
 108 }
 109
 110 static void proc_receive_read_push_options(struct packet_reader *reader,
 111                                            struct string_list *options)
 112 {
 113
 114         if (no_push_options || !use_push_options)
 115                return;
 116
 117         if (die_read_push_options)
 118                 die("die with the --die-read-push-options option");
 119
 120         while (1) {
 121                 if (packet_reader_read(reader) != PACKET_READ_NORMAL)
 122                         break;
 123
 124                 string_list_append(options, reader->line);
 125         }
 126 }
 127
 128 int cmd__proc_receive(int argc, const char **argv)
 129 {
 130         int nongit_ok = 0;
 131         struct packet_reader reader;
 132         struct command *commands = NULL;
 133         struct string_list push_options = STRING_LIST_INIT_DUP;
 134         struct string_list_item *item;
 135         struct option options[] = {
 136                 OPT_BOOL(0, "no-push-options", &no_push_options,
 137                          "disable push options"),
 138                 OPT_BOOL(0, "die-read-version", &die_read_version,
 139                          "die when reading version"),
 140                 OPT_BOOL(0, "die-write-version", &die_write_version,
 141                          "die when writing version"),
 142                 OPT_BOOL(0, "die-read-commands", &die_read_commands,
 143                          "die when reading commands"),
 144                 OPT_BOOL(0, "die-read-push-options", &die_read_push_options,
 145                          "die when reading push-options"),
 146                 OPT_BOOL(0, "die-write-report", &die_write_report,
 147                          "die when writing report"),
 148                 OPT_STRING_LIST('r', "return", &returns, "old/new/ref/status/msg",
 149                                 "return of results"),
 150                 OPT__VERBOSE(&verbose, "be verbose"),
 151                 OPT_INTEGER('V', "version", &version,
 152                             "use this protocol version number"),
 153                 OPT_END()
 154         };
 155
 156         setup_git_directory_gently(&nongit_ok);
 157
 158         argc = parse_options(argc, argv, "test-tools", options, proc_receive_usage, 0);
 159         if (argc > 0)
 160                 usage_msg_opt("Too many arguments.", proc_receive_usage, options);
 161         packet_reader_init(&reader, 0, NULL, 0,
 162                            PACKET_READ_CHOMP_NEWLINE |
 163                            PACKET_READ_GENTLE_ON_EOF);
 164
 165         sigchain_push(SIGPIPE, SIG_IGN);
 166         proc_receive_verison(&reader);
 167         proc_receive_read_commands(&reader, &commands);
 168         proc_receive_read_push_options(&reader, &push_options);
 169
 170         if (verbose) {
 171                 struct command *cmd;
 172
 173                 if (use_push_options || use_atomic)
 174                         fprintf(stderr, "proc-receive:%s%s\n",
 175                                 use_atomic? " atomic": "",
 176                                 use_push_options ? " push_options": "");
 177
 178                 for (cmd = commands; cmd; cmd = cmd->next)
 179                         fprintf(stderr, "proc-receive< %s %s %s\n",
 180                                 oid_to_hex(&cmd->old_oid),
 181                                 oid_to_hex(&cmd->new_oid),
 182                                 cmd->ref_name);
 183
 184                 if (push_options.nr > 0)
 185                         for_each_string_list_item(item, &push_options)
 186                                 fprintf(stderr, "proc-receive< %s\n", item->string);
 187
 188                 if (returns.nr)
 189                         for_each_string_list_item(item, &returns)
 190                                 fprintf(stderr, "proc-receive> %s\n", item->string);
 191         }
 192
 193         if (die_write_report)
 194                 die("die with the --die-write-report option");
 195         if (returns.nr)
 196                 for_each_string_list_item(item, &returns)
 197                         packet_write_fmt(1, "%s\n", item->string);
 198         packet_flush(1);
 199         sigchain_pop(SIGPIPE);
 200
 201         return 0;
 202 }