diff options
Diffstat (limited to 'builtin-receive-pack.c')
| -rw-r--r-- | builtin-receive-pack.c | 82 |
1 files changed, 79 insertions, 3 deletions
diff --git a/builtin-receive-pack.c b/builtin-receive-pack.c index 45e3cd90fd..db67c3162c 100644 --- a/builtin-receive-pack.c +++ b/builtin-receive-pack.c @@ -11,7 +11,15 @@ static const char receive_pack_usage[] = "git-receive-pack <git-dir>"; +enum deny_action { + DENY_IGNORE, + DENY_WARN, + DENY_REFUSE, +}; + +static int deny_deletes = 0; static int deny_non_fast_forwards = 0; +static enum deny_action deny_current_branch = DENY_WARN; static int receive_fsck_objects; static int receive_unpack_limit = -1; static int transfer_unpack_limit = -1; @@ -21,8 +29,28 @@ static int report_status; static char capabilities[] = " report-status delete-refs "; static int capabilities_sent; +static enum deny_action parse_deny_action(const char *var, const char *value) +{ + if (value) { + if (!strcasecmp(value, "ignore")) + return DENY_IGNORE; + if (!strcasecmp(value, "warn")) + return DENY_WARN; + if (!strcasecmp(value, "refuse")) + return DENY_REFUSE; + } + if (git_config_bool(var, value)) + return DENY_REFUSE; + return DENY_IGNORE; +} + static int receive_pack_config(const char *var, const char *value, void *cb) { + if (strcmp(var, "receive.denydeletes") == 0) { + deny_deletes = git_config_bool(var, value); + return 0; + } + if (strcmp(var, "receive.denynonfastforwards") == 0) { deny_non_fast_forwards = git_config_bool(var, value); return 0; @@ -43,6 +71,11 @@ static int receive_pack_config(const char *var, const char *value, void *cb) return 0; } + if (!strcmp(var, "receive.denycurrentbranch")) { + deny_current_branch = parse_deny_action(var, value); + return 0; + } + return git_default_config(var, value, cb); } @@ -167,6 +200,20 @@ static int run_update_hook(struct command *cmd) return hook_status(run_command(&proc), update_hook); } +static int is_ref_checked_out(const char *ref) +{ + unsigned char sha1[20]; + const char *head; + + if (is_bare_repository()) + return 0; + + head = resolve_ref("HEAD", sha1, 0, NULL); + if (!head) + return 0; + return !strcmp(head, ref); +} + static const char *update(struct command *cmd) { const char *name = cmd->ref_name; @@ -180,11 +227,35 @@ static const char *update(struct command *cmd) return "funny refname"; } + switch (deny_current_branch) { + case DENY_IGNORE: + break; + case DENY_WARN: + if (!is_ref_checked_out(name)) + break; + warning("updating the currently checked out branch; this may" + " cause confusion,\n" + "as the index and working tree do not reflect changes" + " that are now in HEAD."); + break; + case DENY_REFUSE: + if (!is_ref_checked_out(name)) + break; + error("refusing to update checked out branch: %s", name); + return "branch is currently checked out"; + } + if (!is_null_sha1(new_sha1) && !has_sha1_file(new_sha1)) { error("unpack should have generated %s, " "but I can't find it!", sha1_to_hex(new_sha1)); return "bad pack"; } + if (deny_deletes && is_null_sha1(new_sha1) && + !is_null_sha1(old_sha1) && + !prefixcmp(name, "refs/heads/")) { + error("denying ref deletion for %s", name); + return "deletion prohibited"; + } if (deny_non_fast_forwards && !is_null_sha1(new_sha1) && !is_null_sha1(old_sha1) && !prefixcmp(name, "refs/heads/")) { @@ -224,7 +295,7 @@ static const char *update(struct command *cmd) warning ("Allowing deletion of corrupt ref."); old_sha1 = NULL; } - if (delete_ref(name, old_sha1)) { + if (delete_ref(name, old_sha1, 0)) { error("failed to delete %s", name); return "failed to delete"; } @@ -466,12 +537,17 @@ static int delete_only(struct command *cmd) static int add_refs_from_alternate(struct alternate_object_database *e, void *unused) { - char *other = xstrdup(make_absolute_path(e->base)); - size_t len = strlen(other); + char *other; + size_t len; struct remote *remote; struct transport *transport; const struct ref *extra; + e->name[-1] = '\0'; + other = xstrdup(make_absolute_path(e->base)); + e->name[-1] = '/'; + len = strlen(other); + while (other[len-1] == '/') other[--len] = '\0'; if (len < 8 || memcmp(other + len - 8, "/objects", 8)) |