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-rw-r--r--builtin-receive-pack.c58
1 files changed, 43 insertions, 15 deletions
diff --git a/builtin-receive-pack.c b/builtin-receive-pack.c
index 6564a97ce..6f61c45fd 100644
--- a/builtin-receive-pack.c
+++ b/builtin-receive-pack.c
@@ -12,6 +12,7 @@
static const char receive_pack_usage[] = "git-receive-pack <git-dir>";
enum deny_action {
+ DENY_UNCONFIGURED,
DENY_IGNORE,
DENY_WARN,
DENY_REFUSE,
@@ -19,7 +20,7 @@ enum deny_action {
static int deny_deletes = 0;
static int deny_non_fast_forwards = 0;
-static enum deny_action deny_current_branch = DENY_WARN;
+static enum deny_action deny_current_branch = DENY_UNCONFIGURED;
static int receive_fsck_objects;
static int receive_unpack_limit = -1;
static int transfer_unpack_limit = -1;
@@ -214,6 +215,35 @@ static int is_ref_checked_out(const char *ref)
return !strcmp(head, ref);
}
+static char *warn_unconfigured_deny_msg[] = {
+ "Updating the currently checked out branch may cause confusion,",
+ "as the index and work tree do not reflect changes that are in HEAD.",
+ "As a result, you may see the changes you just pushed into it",
+ "reverted when you run 'git diff' over there, and you may want",
+ "to run 'git reset --hard' before starting to work to recover.",
+ "",
+ "You can set 'receive.denyCurrentBranch' configuration variable to",
+ "'refuse' in the remote repository to forbid pushing into its",
+ "current branch."
+ "",
+ "To allow pushing into the current branch, you can set it to 'ignore';",
+ "but this is not recommended unless you arranged to update its work",
+ "tree to match what you pushed in some other way.",
+ "",
+ "To squelch this message, you can set it to 'warn'.",
+ "",
+ "Note that the default will change in a future version of git",
+ "to refuse updating the current branch unless you have the",
+ "configuration variable set to either 'ignore' or 'warn'."
+};
+
+static void warn_unconfigured_deny(void)
+{
+ int i;
+ for (i = 0; i < ARRAY_SIZE(warn_unconfigured_deny_msg); i++)
+ warning(warn_unconfigured_deny_msg[i]);
+}
+
static const char *update(struct command *cmd)
{
const char *name = cmd->ref_name;
@@ -227,22 +257,20 @@ 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))
+ if (is_ref_checked_out(name)) {
+ switch (deny_current_branch) {
+ case DENY_IGNORE:
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))
+ case DENY_UNCONFIGURED:
+ case DENY_WARN:
+ warning("updating the current branch");
+ if (deny_current_branch == DENY_UNCONFIGURED)
+ warn_unconfigured_deny();
break;
- error("refusing to update checked out branch: %s", name);
- return "branch is currently checked out";
+ case DENY_REFUSE:
+ 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)) {