(travis) Minimize MySQL config further - even less chance of OOMs

[dbsrgits/DBIx-Class-Historic.git] / maint / travis-ci_scripts / 10_before_install.bash

diff --git a/maint/travis-ci_scripts/10_before_install.bash b/maint/travis-ci_scripts/10_before_install.bash
index e2500ab..774ac41 100755 (executable)
--- a/maint/travis-ci_scripts/10_before_install.bash
+++ b/maint/travis-ci_scripts/10_before_install.bash
@@ -1,10 +1,19 @@
 #!/bin/bash
 
-# Stop pre-started RDBMS and sync for some settle time
+export SHORT_CIRCUIT_SMOKE
+
+# Stop pre-started RDBMS, move their data back to disk (save RAM)
+# sync for some settle time
 run_or_err "Stopping MySQL"       "sudo /etc/init.d/mysql stop"
-run_or_err "Stopping PostgreSQL"  "sudo /etc/init.d/postgresql stop"
+run_or_err "Stopping PostgreSQL"  "sudo /etc/init.d/postgresql stop || /bin/true"
 /bin/sync
 
+for d in mysql postgresql ; do
+  sudo rm -rf /var/lib/$d
+  sudo mv /var/ramfs/$d /var/lib/
+  sudo ln -s /var/lib/$d /var/ramfs/$d
+done
+
 # Sanity check VM before continuing
 echo "
 =============================================================================
@@ -25,6 +34,17 @@ Under Travis this state usually results in a failed build.
 Short-circuiting buildjob to avoid false negatives, please restart it manually.
 
 ============================================================================="
+
+# pull requests are always scrutinized after the fact anyway - run a
+# a simpler matrix
+elif [[ "$TRAVIS_PULL_REQUEST" != "false" ]]; then
+  if [[ -n "$BREWVER" ]]; then
+    # just don't brew anything
+    SHORT_CIRCUIT_SMOKE=1
+  else
+    # running PRs with 1 thread is non-sensical
+    VCPU_USE=""
+  fi
 fi
 
 if [[ -n "$SHORT_CIRCUIT_SMOKE" ]] ; then return ; fi
@@ -40,12 +60,16 @@ if [[ -n "$SHORT_CIRCUIT_SMOKE" ]] ; then return ; fi
 #
 # We also divide the result by a factor, otherwise the travis VM gets
 # overloaded (the amount of available swap is just TOOOO damn small)
-export NUMTHREADS="$(( ( $(perl -0777 -n -e 'print (/ (?: .+ ^ processor \s+ : \s+ (\d+) ) (?! ^ processor ) /smx)' < /proc/cpuinfo) + 1 ) / 3 ))"
+export VCPU_AVAILABLE="$(( ( $(perl -0777 -n -e 'print (/ (?: .+ ^ processor \s+ : \s+ (\d+) ) (?! ^ processor ) /smx)' < /proc/cpuinfo) + 1 ) / 3 ))"
+
+if [[ -z "$VCPU_USE" ]] ; then
+  export VCPU_USE="$VCPU_AVAILABLE"
+fi
 
 export CACHE_DIR="/tmp/poormanscache"
 
 # these will be installed no matter what, also some extras unless CLEANTEST
-common_packages="libapp-nopaste-perl tree"
+common_packages="libapp-nopaste-perl"
 
 if [[ "$CLEANTEST" = "true" ]]; then
 
@@ -58,6 +82,10 @@ else
   sudo bash -c 'echo -e "firebird2.5-super\tshared/firebird/enabled\tboolean\ttrue" | debconf-set-selections'
   sudo bash -c 'echo -e "firebird2.5-super\tshared/firebird/sysdba_password/new_password\tpassword\t123" | debconf-set-selections'
 
+  # these APT sources do not mean anything to us anyway
+  sudo rm -rf /etc/apt/sources.list.d/*
+
+  run_or_err "Updating APT sources" "sudo apt-get update"
   apt_install $common_packages libmysqlclient-dev memcached firebird2.5-super firebird2.5-dev unixodbc-dev expect
 
   run_or_err "Cloning poor man's cache from github" "git clone --depth=1 --single-branch --branch=oracle/10.2.0 https://github.com/poortravis/poormanscache.git $CACHE_DIR && $CACHE_DIR/reassemble"
@@ -68,6 +96,12 @@ else
   export DBICTEST_MEMCACHED=127.0.0.1:11211
 
 ### config mysql
+  run_or_err "Installing minimizing MySQL config" "\
+     sudo bash -c 'rm /var/lib/mysql/ib*' \
+  && sudo cp maint/travis-ci_scripts/configs/minimal_mysql_travis.cnf /etc/mysql/conf.d/ \
+  && sudo chmod 644 /etc/mysql/conf.d/*.cnf \
+  "
+
   run_or_err "Starting MySQL" "sudo /etc/init.d/mysql start"
   run_or_err "Creating MySQL TestDB" "mysql -e 'create database dbic_test;'"
   export DBICTEST_MYSQL_DSN='dbi:mysql:database=dbic_test;host=127.0.0.1'