# HG changeset patch
# User Patrick Mezard <pmezard@gmail.com>
# Date 2009-06-13 20:42:13
# Node ID ca14b3982ffe6bfc5c692d79f6f31bfea13b8f70
# Parent  1c610db4a8970fc36d1c1a414aeaf3e8e6d2a5f9

bisect: fix traceback when command executable is not found

diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -339,6 +339,8 @@ def bisect(ui, repo, rev=None, extra=Non
 
     if command:
         commandpath = util.find_exe(command)
+        if commandpath is None:
+            raise util.Abort(_("cannot find executable: %s") % command)
         changesets = 1
         try:
             while changesets:
diff --git a/tests/test-bisect b/tests/test-bisect
--- a/tests/test-bisect
+++ b/tests/test-bisect
@@ -82,3 +82,7 @@ hg bisect -s
 hg bisect -s
 hg bisect -s 
 hg bisect -g
+
+echo % test invalid command
+hg bisect -r
+hg bisect --command 'foobar'
diff --git a/tests/test-bisect.out b/tests/test-bisect.out
--- a/tests/test-bisect.out
+++ b/tests/test-bisect.out
@@ -303,3 +303,5 @@ user:        test
 date:        Thu Jan 01 00:00:06 1970 +0000
 summary:     msg 6
 
+% test invalid command
+abort: cannot find executable: foobar