t/helper/test-ref-store.c

   1 #include "cache.h"
   2 #include "refs.h"
   3 #include "worktree.h"
   4
   5 static const char *notnull(const char *arg, const char *name)
   6 {
   7         if (!arg)
   8                 die("%s required", name);
   9         return arg;
  10 }
  11
  12 static unsigned int arg_flags(const char *arg, const char *name)
  13 {
  14         return atoi(notnull(arg, name));
  15 }
  16
  17 static const char **get_store(const char **argv, struct ref_store **refs)
  18 {
  19         const char *gitdir;
  20
  21         if (!argv[0]) {
  22                 die("ref store required");
  23         } else if (!strcmp(argv[0], "main")) {
  24                 *refs = get_main_ref_store();
  25         } else if (skip_prefix(argv[0], "submodule:", &gitdir)) {
  26                 struct strbuf sb = STRBUF_INIT;
  27                 int ret;
  28
  29                 ret = strbuf_git_path_submodule(&sb, gitdir, "objects/");
  30                 if (ret)
  31                         die("strbuf_git_path_submodule failed: %d", ret);
  32                 add_to_alternates_memory(sb.buf);
  33                 strbuf_release(&sb);
  34
  35                 *refs = get_submodule_ref_store(gitdir);
  36         } else if (skip_prefix(argv[0], "worktree:", &gitdir)) {
  37                 struct worktree **p, **worktrees = get_worktrees(0);
  38
  39                 for (p = worktrees; *p; p++) {
  40                         struct worktree *wt = *p;
  41
  42                         if (!wt->id) {
  43                                 /* special case for main worktree */
  44                                 if (!strcmp(gitdir, "main"))
  45                                         break;
  46                         } else if (!strcmp(gitdir, wt->id))
  47                                 break;
  48                 }
  49                 if (!*p)
  50                         die("no such worktree: %s", gitdir);
  51
  52                 *refs = get_worktree_ref_store(*p);
  53         } else
  54                 die("unknown backend %s", argv[0]);
  55
  56         if (!*refs)
  57                 die("no ref store");
  58
  59         /* consume store-specific optional arguments if needed */
  60
  61         return argv + 1;
  62 }
  63
  64
  65 static int cmd_pack_refs(struct ref_store *refs, const char **argv)
  66 {
  67         unsigned int flags = arg_flags(*argv++, "flags");
  68
  69         return refs_pack_refs(refs, flags);
  70 }
  71
  72 static int cmd_peel_ref(struct ref_store *refs, const char **argv)
  73 {
  74         const char *refname = notnull(*argv++, "refname");
  75         unsigned char sha1[20];
  76         int ret;
  77
  78         ret = refs_peel_ref(refs, refname, sha1);
  79         if (!ret)
  80                 puts(sha1_to_hex(sha1));
  81         return ret;
  82 }
  83
  84 static int cmd_create_symref(struct ref_store *refs, const char **argv)
  85 {
  86         const char *refname = notnull(*argv++, "refname");
  87         const char *target = notnull(*argv++, "target");
  88         const char *logmsg = *argv++;
  89
  90         return refs_create_symref(refs, refname, target, logmsg);
  91 }
  92
  93 static int cmd_delete_refs(struct ref_store *refs, const char **argv)
  94 {
  95         unsigned int flags = arg_flags(*argv++, "flags");
  96         const char *msg = *argv++;
  97         struct string_list refnames = STRING_LIST_INIT_NODUP;
  98
  99         while (*argv)
 100                 string_list_append(&refnames, *argv++);
 101
 102         return refs_delete_refs(refs, msg, &refnames, flags);
 103 }
 104
 105 static int cmd_rename_ref(struct ref_store *refs, const char **argv)
 106 {
 107         const char *oldref = notnull(*argv++, "oldref");
 108         const char *newref = notnull(*argv++, "newref");
 109         const char *logmsg = *argv++;
 110
 111         return refs_rename_ref(refs, oldref, newref, logmsg);
 112 }
 113
 114 static int each_ref(const char *refname, const struct object_id *oid,
 115                     int flags, void *cb_data)
 116 {
 117         printf("%s %s 0x%x\n", oid_to_hex(oid), refname, flags);
 118         return 0;
 119 }
 120
 121 static int cmd_for_each_ref(struct ref_store *refs, const char **argv)
 122 {
 123         const char *prefix = notnull(*argv++, "prefix");
 124
 125         return refs_for_each_ref_in(refs, prefix, each_ref, NULL);
 126 }
 127
 128 static int cmd_resolve_ref(struct ref_store *refs, const char **argv)
 129 {
 130         unsigned char sha1[20];
 131         const char *refname = notnull(*argv++, "refname");
 132         int resolve_flags = arg_flags(*argv++, "resolve-flags");
 133         int flags;
 134         const char *ref;
 135
 136         ref = refs_resolve_ref_unsafe(refs, refname, resolve_flags,
 137                                       sha1, &flags);
 138         printf("%s %s 0x%x\n", sha1_to_hex(sha1), ref, flags);
 139         return ref ? 0 : 1;
 140 }
 141
 142 static int cmd_verify_ref(struct ref_store *refs, const char **argv)
 143 {
 144         const char *refname = notnull(*argv++, "refname");
 145         struct strbuf err = STRBUF_INIT;
 146         int ret;
 147
 148         ret = refs_verify_refname_available(refs, refname, NULL, NULL, &err);
 149         if (err.len)
 150                 puts(err.buf);
 151         return ret;
 152 }
 153
 154 static int cmd_for_each_reflog(struct ref_store *refs, const char **argv)
 155 {
 156         return refs_for_each_reflog(refs, each_ref, NULL);
 157 }
 158
 159 static int each_reflog(struct object_id *old_oid, struct object_id *new_oid,
 160                        const char *committer, timestamp_t timestamp,
 161                        int tz, const char *msg, void *cb_data)
 162 {
 163         printf("%s %s %s %"PRItime" %d %s\n",
 164                oid_to_hex(old_oid), oid_to_hex(new_oid),
 165                committer, timestamp, tz, msg);
 166         return 0;
 167 }
 168
 169 static int cmd_for_each_reflog_ent(struct ref_store *refs, const char **argv)
 170 {
 171         const char *refname = notnull(*argv++, "refname");
 172
 173         return refs_for_each_reflog_ent(refs, refname, each_reflog, refs);
 174 }
 175
 176 static int cmd_for_each_reflog_ent_reverse(struct ref_store *refs, const char **argv)
 177 {
 178         const char *refname = notnull(*argv++, "refname");
 179
 180         return refs_for_each_reflog_ent_reverse(refs, refname, each_reflog, refs);
 181 }
 182
 183 static int cmd_reflog_exists(struct ref_store *refs, const char **argv)
 184 {
 185         const char *refname = notnull(*argv++, "refname");
 186
 187         return !refs_reflog_exists(refs, refname);
 188 }
 189
 190 static int cmd_create_reflog(struct ref_store *refs, const char **argv)
 191 {
 192         const char *refname = notnull(*argv++, "refname");
 193         int force_create = arg_flags(*argv++, "force-create");
 194         struct strbuf err = STRBUF_INIT;
 195         int ret;
 196
 197         ret = refs_create_reflog(refs, refname, force_create, &err);
 198         if (err.len)
 199                 puts(err.buf);
 200         return ret;
 201 }
 202
 203 static int cmd_delete_reflog(struct ref_store *refs, const char **argv)
 204 {
 205         const char *refname = notnull(*argv++, "refname");
 206
 207         return refs_delete_reflog(refs, refname);
 208 }
 209
 210 static int cmd_reflog_expire(struct ref_store *refs, const char **argv)
 211 {
 212         die("not supported yet");
 213 }
 214
 215 static int cmd_delete_ref(struct ref_store *refs, const char **argv)
 216 {
 217         const char *msg = notnull(*argv++, "msg");
 218         const char *refname = notnull(*argv++, "refname");
 219         const char *sha1_buf = notnull(*argv++, "old-sha1");
 220         unsigned int flags = arg_flags(*argv++, "flags");
 221         unsigned char old_sha1[20];
 222
 223         if (get_sha1_hex(sha1_buf, old_sha1))
 224                 die("not sha-1");
 225
 226         return refs_delete_ref(refs, msg, refname, old_sha1, flags);
 227 }
 228
 229 static int cmd_update_ref(struct ref_store *refs, const char **argv)
 230 {
 231         const char *msg = notnull(*argv++, "msg");
 232         const char *refname = notnull(*argv++, "refname");
 233         const char *new_sha1_buf = notnull(*argv++, "old-sha1");
 234         const char *old_sha1_buf = notnull(*argv++, "old-sha1");
 235         unsigned int flags = arg_flags(*argv++, "flags");
 236         unsigned char old_sha1[20];
 237         unsigned char new_sha1[20];
 238
 239         if (get_sha1_hex(old_sha1_buf, old_sha1) ||
 240             get_sha1_hex(new_sha1_buf, new_sha1))
 241                 die("not sha-1");
 242
 243         return refs_update_ref(refs, msg, refname,
 244                                new_sha1, old_sha1,
 245                                flags, UPDATE_REFS_DIE_ON_ERR);
 246 }
 247
 248 struct command {
 249         const char *name;
 250         int (*func)(struct ref_store *refs, const char **argv);
 251 };
 252
 253 static struct command commands[] = {
 254         { "pack-refs", cmd_pack_refs },
 255         { "peel-ref", cmd_peel_ref },
 256         { "create-symref", cmd_create_symref },
 257         { "delete-refs", cmd_delete_refs },
 258         { "rename-ref", cmd_rename_ref },
 259         { "for-each-ref", cmd_for_each_ref },
 260         { "resolve-ref", cmd_resolve_ref },
 261         { "verify-ref", cmd_verify_ref },
 262         { "for-each-reflog", cmd_for_each_reflog },
 263         { "for-each-reflog-ent", cmd_for_each_reflog_ent },
 264         { "for-each-reflog-ent-reverse", cmd_for_each_reflog_ent_reverse },
 265         { "reflog-exists", cmd_reflog_exists },
 266         { "create-reflog", cmd_create_reflog },
 267         { "delete-reflog", cmd_delete_reflog },
 268         { "reflog-expire", cmd_reflog_expire },
 269         /*
 270          * backend transaction functions can't be tested separately
 271          */
 272         { "delete-ref", cmd_delete_ref },
 273         { "update-ref", cmd_update_ref },
 274         { NULL, NULL }
 275 };
 276
 277 int cmd_main(int argc, const char **argv)
 278 {
 279         struct ref_store *refs;
 280         const char *func;
 281         struct command *cmd;
 282
 283         setup_git_directory();
 284
 285         argv = get_store(argv + 1, &refs);
 286
 287         func = *argv++;
 288         if (!func)
 289                 die("ref function required");
 290         for (cmd = commands; cmd->name; cmd++) {
 291                 if (!strcmp(func, cmd->name))
 292                         return cmd->func(refs, argv);
 293         }
 294         die("unknown function %s", func);
 295         return 0;
 296 }