[PATCH 2/2] push: better error messages for detached HEAD and "no destination"

[Matthieu Moy <Matthieu.Moy@imag.fr>]

In both cases, give a hint on what to do next. We mention explicitely
"detached HEAD" since this is the keyword to look for in documentations.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
---
 builtin/push.c |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/builtin/push.c b/builtin/push.c
index 210eb36..48fb050 100644
--- a/builtin/push.c
+++ b/builtin/push.c
@@ -69,7 +69,8 @@ static void setup_push_upstream(struct remote *remote)
 	struct strbuf refspec = STRBUF_INIT;
 	struct branch *branch = branch_get(NULL);
 	if (!branch)
-		die("You are not currently on a branch.");
+		die("You are not currently on a branch (detached HEAD).\n"
+		    "Please, checkout the branch you want to push first or specify it on the command line.");
 	if (!branch->merge_nr || !branch->merge)
 		die("The current branch %s has no upstream branch.\n"
 		    "To push the current branch and set the remote as upstream, use\n"
@@ -152,7 +153,14 @@ static int do_push(const char *repo, int flags)
 	if (!remote) {
 		if (repo)
 			die("bad repository '%s'", repo);
-		die("No destination configured to push to.");
+		die("No destination configured to push to.\n"
+		    "Either specify the URL from the command line or configure a remote repository using\n"
+		    "\n"
+		    "    git remote add <name> <url>\n"
+		    "\n"
+		    "and then push using the remote name like\n"
+		    "\n"
+		    "    git push <name>\n");
 	}
 
 	if (remote->mirror)
-- 
1.7.4.1.142.g43604.dirty