Merge lp:~sinzui/juju-ci-tools/unit-test-install-deps into lp:juju-ci-tools

[Curtis Hovey]

Install alternate deps for unit tests.

This branch adds a option to pass alternate deps. They are installed instead of calling 'make install-dependancies'. This allows us to test dependency changes without tampering with the Makefile. This specifically allows us to test the backported go1.5 packages, and the new Mongo packages. This might also allow us to test on arm64.

[Aaron Bentley (abentley)]

Thanks.

review: Approve

=== modified file 'run-unit-tests'
--- run-unit-tests	2015-11-13 16:47:48 +0000
+++ run-unit-tests	2016-01-21 14:20:51 +0000
@@ -12,6 +12,7 @@
 ROBUST="false"
 REVISION_BUILD=${revision_build:-}
 USE_PPA=""
+INSTALL_DEPS=""
 USE_TMPFS="false"
 GOTESTCMD="go test"
 LOG_FILE_PATH="/usr/share/distro-info/ubuntu.csv"
@@ -49,6 +50,10 @@
                 exit 1
             fi
             ;;
+        --install-deps)
+            shift
+            INSTALL_DEPS=$1
+            ;;
         --use-tmpfs)
             USE_TMPFS="true"
             ;;
@@ -158,7 +163,14 @@
 sudo apt-get update
 sudo apt-get upgrade -y
 sudo apt-get install -y make python-software-properties distro-info-data
-make install-dependencies
+if [[ "$INSTALL_DEPS" == "" ]]; then
+    echo "Installing default deps."
+    make install-dependencies
+else
+    echo "Installing deps from command line."
+    sudo apt-get install -y $INSTALL_DEPS
+fi
+
 # TODO(gz): Remove bzr whoami?
 bzr whoami 'J. Random Hacker <[e-mail]>'
 go version || gccgo -v