# HG changeset patch
# User Peter Arrenbrecht <peter@arrenbrecht.ch>
# Date 1589177620 -7200
# Node ID f71c8eea7161c6292389339557d9e538e0fcdc51
# Parent  a6e12d477595b96d6a95f1e32f2dd4762d136b17
bash_completion: do not use aliased hg if it sources a script (issue6308)

I have an alias that sources a script around hg. Mercurial's bash_completion
script tries to use this as its main hg binary. But sourcing a wrapper breaks
Bash's completion. So this patch disables using the alias as the hg binary if
it starts with "source ".

Alias resolution was introduced in rev 191ab08e7099 for users with
"alias hg='hg --some_opts'".

See https://www.mercurial-scm.org/repo/hg/rev/191ab08e7099

diff -r a6e12d477595 -r f71c8eea7161 contrib/bash_completion
--- a/contrib/bash_completion	Tue May 12 01:03:12 2020 +0200
+++ b/contrib/bash_completion	Mon May 11 08:13:40 2020 +0200
@@ -160,7 +160,10 @@
     if [[ -n "$aliashg" ]]; then
       aliashg=${aliashg#"alias $hg='"}
       aliashg=${aliashg%"'"}
-      hg=$aliashg
+      # `source`d aliases break completion, so ignore them
+      if [[ "${aliashg:0:7}" != "source " ]]; then
+        hg=$aliashg
+      fi
     fi
 
     COMPREPLY=()