Remove anything preinstalled on the travis perls when CLEANTEST is true

This will give us yet another test point

diff --git a/maint/travis-ci_scripts/10_before_install.bash b/maint/travis-ci_scripts/10_before_install.bash
index fa50ffc..b582b34 100755 (executable)
--- a/maint/travis-ci_scripts/10_before_install.bash
+++ b/maint/travis-ci_scripts/10_before_install.bash
@@ -13,7 +13,7 @@ if [[ -n "$SHORT_CIRCUIT_SMOKE" ]] ; then return ; fi
 # `processor    : XX` line
 export NUMTHREADS=$(( $(perl -0777 -n -e 'print (/ (?: .+ ^ processor \s+ : \s+ (\d+) ) (?! ^ processor ) /smx)' < /proc/cpuinfo) + 1 ))
 
-run_or_err "Installing App::Nopaste from APT" "sudo apt-get install --allow-unauthenticated -y libapp-nopaste-perl"
+run_or_err "Installing common tools from APT" "sudo apt-get install --allow-unauthenticated -y libapp-nopaste-perl tree"
 # FIXME - the debian package is oddly broken - uses a bin/env based shebang
 # so nothing works under a brew. Fix here until #debian-perl patches it up
 sudo /usr/bin/perl -p -i -e 's|#!/usr/bin/env perl|#!/usr/bin/perl|' $(which nopaste)

diff --git a/maint/travis-ci_scripts/20_install.bash b/maint/travis-ci_scripts/20_install.bash
index 7c19a56..bb7f414 100755 (executable)
--- a/maint/travis-ci_scripts/20_install.bash
+++ b/maint/travis-ci_scripts/20_install.bash
@@ -54,6 +54,27 @@ if [[ -n "$BREWVER" ]] ; then
     exit 1
   fi
 
+# no brewver - this means a travis perl, which means we want to clean up
+# the presently installed libs
+# Idea stolen from
+# https://github.com/kentfredric/Dist-Zilla-Plugin-Prereqs-MatchInstalled-All/blob/master/maint-travis-ci/sterilize_env.pl
+elif [[ "$CLEANTEST" == "true" ]] && [[ "$POISON_ENV" != "true" ]] ; then
+
+  echo_err "$(tstamp) Cleaning precompiled Travis-Perl"
+  perl -MConfig -MFile::Find -e '
+    my $sitedirs = {
+      map { $Config{$_} => 1 }
+        grep { $_ =~ /site(lib|arch)exp$/ }
+          keys %Config
+    };
+    find({ bydepth => 1, no_chdir => 1, follow_fast => 1, wanted => sub {
+      ! $sitedirs->{$_} and ( -d _ ? rmdir : unlink )
+    } }, keys %$sitedirs )
+  '
+
+  echo_err "Post-cleanup contents of sitelib of the pre-compiled Travis-Perl $TRAVIS_PERL_VERSION:"
+  echo_err "$(tree $(perl -MConfig -e 'print $Config{sitelib_stem}'))"
+  echo_err
 fi
 
 # configure CPAN.pm - older versions go into an endless loop