before empty after sending failure

[ianmiell]

Minimal repro here:

imiell@Ians-Air:/space/git/shutit/bugs/install/bin (master)$ ./build.sh

with this diff:

imiell@Ians-Air:/space/git/shutit (master)$ git diff
diff --git a/.gitignore b/.gitignore
index 161ec2f..b6b7122 100644
--- a/.gitignore
+++ b/.gitignore
@@ -56,3 +56,4 @@ shutit.egg*
 shutit.e4p
 #bak
 *bak
+bugs
diff --git a/shutit_pexpect.py b/shutit_pexpect.py
index f64c8d3..f06e327 100644
--- a/shutit_pexpect.py
+++ b/shutit_pexpect.py
@@ -982,15 +982,15 @@ class ShutItPexpectSession(object):
                shutit = shutit_global.shutit
                shutit.handle_note(note)
                # THIS DOES NOT WORK - WHY? TODO
-               #if self.current_environment.install_type == 'apt':
-               #       #            v the space is intentional, to avoid polluting bash history.
-               #       return self.send_and_get_output(' dpkg -s ' + package + """ | grep '^Status: install ok installed' | wc -l""",loglevel=logging.DEBUG) == '1'
-               #elif self.current_environment.install_type == 'yum':
-               #       # TODO: check whether it's already installed?. see yum notes  yum list installed "$@" >/dev/null 2>&1
-               #       self.send(' yum list installed ' + package + ' > /dev/null 2>&1',check_exit=False,loglevel=logging.DEBUG)
-               #       return self.get_exit_value(shutit)
-               #else:
-               return False
+               if self.current_environment.install_type == 'apt':
+                       #            v the space is intentional, to avoid polluting bash history.
+                       return self.send_and_get_output(' dpkg -s ' + package + """ | grep '^Status: install ok installed' | wc -l""",loglevel=logging.DEBUG) == '1'
+               elif self.current_environment.install_type == 'yum':
+                       # TODO: check whether it's already installed?. see yum notes  yum list installed "$@" >/dev/null 2>&1
+                       self.send(' yum list installed ' + package + ' > /dev/null 2>&1',check_exit=False,loglevel=logging.DEBUG)
+                       return self.get_exit_value(shutit)
+               else:
+                       return False

[ianmiell]

OK, I think this was handled before in check_last_exit_value

At the moment that returns True if the last exit value was in the list, else False. Need to use retbool.

Still a mystery why.