Check for sudo and ensure apt-get update is run at least once

build.sh

@@ -2,18 +2,43 @@
 
 readonly PROGDIR=$(readlink -m $(dirname $0))
 readonly ARTIFACTS_DIR="/shippableci"
-readonly SUDO=`which sudo`
+IS_APT_UPDATED=false
+
+update_apt() {
+ if [ "$IS_APT_UPDATED" == true ]; then return; fi
+ $SUDO apt-get update
+ IS_APT_UPDATED=true
+}
+
+check_sudo() {
+ echo "Looking for sudo..."
+ {
+ SUDO=$(which sudo)
+ } || {
+ echo "Could not find sudo. Installing..."
+ }
+
+ if [ -z "$SUDO" ]; then
+ update_apt
+ apt-get install -y sudo
+ echo "Installed sudo"
+ SUDO=$(which sudo)
+ else
+ echo "Found sudo at $SUDO"
+ fi
+}
 
 check_git() {
  echo "Looking for git..."
  {
  GIT=$(which git)
  } || {
- echo "Could not find git. Installing git-core..."
+ echo "Could not find git. Installing git..."
  }
 
  if [ -z "$GIT" ]; then
- $SUDO apt-get install -y git-core
+ update_apt
+ $SUDO apt-get install -y git
  echo "Installed git-core"
  else
  echo "Found git at $GIT"
@@ -29,6 +54,7 @@ check_ssh_agent() {
  }
 
  if [ -z "$SSH_AGENT" ]; then
+ update_apt
  $SUDO apt-get install -y openssh-client
  echo "Installed openssh-client"
  else
@@ -45,6 +71,7 @@ check_python() {
  }
 
  if [ -z "$PYTHON" ]; then
+ update_apt
  $SUDO apt-get install -y python
  echo "Installed python"
  else
@@ -85,6 +112,7 @@ run_build() {
 }
 
 main() {
+ check_sudo
  check_git
  check_ssh_agent
  check_python