From 2fb4a21074cdd62ecdbb1fd491f743483275e2a4 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Sat, 18 Feb 2006 01:20:06 -0800 Subject: [PATCH] Make "empty ident" error message a bit more helpful. It appears that some people who did not care about having bogus names in their own commit messages are bitten by the recent change to require a sane environment [*1*]. While it was a good idea to prevent people from using bogus names to create commits and doing sign-offs, the error message is not very informative. This patch attempts to warn things upfront and hint people how to fix their environments. [Footnote] *1* The thread is this one. http://marc.theaimsgroup.com/?t=113868084800004 Especially this message. http://marc.theaimsgroup.com/?m=113932830015032 Signed-off-by: Junio C Hamano --- ident.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/ident.c b/ident.c index 23b8cfc600..09d4d716ce 100644 --- a/ident.c +++ b/ident.c @@ -46,6 +46,15 @@ static void copy_gecos(struct passwd *w, char *name, int sz) } +static const char au_env[] = "GIT_AUTHOR_NAME"; +static const char co_env[] = "GIT_COMMITTER_NAME"; +static const char env_hint[] = +"\n*** Environment problem:\n" +"*** Your name cannot be determined from your system services (gecos).\n" +"*** You would need to set %s and %s\n" +"*** environment variables; otherwise you won't be able to perform\n" +"*** certain operations because of \"empty ident\" errors.\n\n"; + int setup_ident(void) { int len; @@ -57,6 +66,11 @@ int setup_ident(void) /* Get the name ("gecos") */ copy_gecos(pw, git_default_name, sizeof(git_default_name)); + if (!*git_default_name) { + if (!getenv(au_env) || !getenv(co_env)) + fprintf(stderr, env_hint, au_env, co_env); + } + /* Make up a fake email address (name + '@' + hostname [+ '.' + domainname]) */ len = strlen(pw->pw_name); if (len > sizeof(git_default_email)/2)