diff tests/test-rhg.t @ 46748:bde90e9b4507

rhg: Remove `rhg.fallback-executable=hg` default configuration

When `rhg.on-unsupported` is configured to `fallback` and an unsupported
feature is encountered, the previous default was to look for an `hg`
executable in `$PATH`.

This default was fragile since it was easy to end up accidentally using
an older version of Mercurial installed system-wide,
when a local (perhaps patched) installation was intended.

Instead, it is now an error to have `rhg.on-unsupported=fallback`
without also configuring an explicit path or the fallback executable.

Differential Revision: https://phab.mercurial-scm.org/D10189

--- a/tests/test-rhg.t	Tue Mar 09 09:17:24 2021 +0100
+++ b/tests/test-rhg.t	Fri Mar 12 21:44:07 2021 +0100
@@ -150,6 +150,14 @@
   $ rhg cat original
   original content
 
+  $ FALLBACK_EXE="$RHG_FALLBACK_EXECUTABLE"
+  $ unset RHG_FALLBACK_EXECUTABLE
+  $ rhg cat original
+  abort: 'rhg.on-unsupported=fallback' without 'rhg.fallback-executable' set.
+  [255]
+  $ RHG_FALLBACK_EXECUTABLE="$FALLBACK_EXE"
+  $ export RHG_FALLBACK_EXECUTABLE
+
   $ rhg cat original --config rhg.fallback-executable=false
   [1]