gistfile1.sh

#!/bin/sh

pushd /tmp

SCRIPT_TEXT="
on run argv\n
if appIsRunning(\"Chromium\") then\n
set userCanceled to false\n
tell application \"Chromium\"\n
try\n
display dialog \"Downloaded newest Chromium nightly, need to relaunch to use new version.\" with icon stop\n
on error number -128\n
set userCanceled to true\n
end try\n
if not userCanceled then\n
quit\n
delay 2\n
activate application \"Chromium\"\n
end if\n
end tell\n
end if\n
end run\n
on appIsRunning(appName)\n
tell application \"System Events\" to (name of processes) contains appName\n
end appIsRunning"

SCRIPT_NM="dialog.scpt"

echo -e $SCRIPT_TEXT > $SCRIPT_NM

APPS="/Applications"

C_APP_NM='Chromium.app'
C_DL_DIR='chrome-mac'

C_INSTALL="$APPS/$C_APP_NM"
C_DL_FL="$C_DL_DIR/$C_APP_NM"

BASE_URL='http://build.chromium.org/buildbot/snapshots/chromium-rel-mac'
LATEST_URL="$BASE_URL/LATEST"

ZIP_FILE='chrome-mac.zip'

latest=`curl "$LATEST_URL"`

if [[ $latest ]]
then
  wget "$BASE_URL/$latest/$ZIP_FILE" &&
  unzip "$ZIP_FILE"                  &&
  rm -rf "$C_INSTALL"                &&
  mv "$C_DL_FL" "$APPS"              &&
  osascript $SCRIPT_NM               
fi

rm -rf $C_DL_DIR $ZIP_FILE $SCRIPT_NM

popd