| #!/bin/bash |
| # |
| # Ensures the latest Chrome Canary is available, downloading it |
| # if necessary. |
| # |
| # Directory ~/.chrome/canary can safely be cached as the existing |
| # version will be checked before reusing a previously downloaded |
| # canary. |
| # |
| |
| set -eu |
| |
| readonly CHROME_SNAPSHOTS=https://storage.googleapis.com/chromium-browser-snapshots |
| declare CHROME_URL |
| declare CHROME_NAME |
| declare CHROME_RELATIVE_BIN |
| |
| if [[ "$OSTYPE" == "linux"* ]]; then |
| CHROME_URL=$CHROME_SNAPSHOTS/Linux_x64 |
| CHROME_NAME=chrome-linux |
| CHROME_RELATIVE_BIN=chrome |
| elif [[ "$OSTYPE" == "darwin"* ]]; then |
| CHROME_URL=$CHROME_SNAPSHOTS/Mac |
| CHROME_NAME=chrome-mac |
| CHROME_RELATIVE_BIN=Chromium.app/Contents/MacOS/Chromium |
| elif [[ "$OSTYPE" == "cygwin" ]]; then |
| CHROME_URL=$CHROME_SNAPSHOTS/Win |
| CHROME_NAME=chrome-win32 |
| CHROME_RELATIVE_BIN=chrome.exe |
| else |
| echo "Unknown platform: $OSTYPE" >&2 |
| exit 1 |
| fi |
| |
| readonly CHROME_CANARY_DIR=$HOME/.chrome/canary |
| readonly CHROME_CANARY_BIN=$CHROME_CANARY_DIR/$CHROME_NAME/$CHROME_RELATIVE_BIN |
| readonly CHROME_CANARY_REV_FILE=$CHROME_CANARY_DIR/VERSION |
| readonly CHROME_REV=$(curl -s ${CHROME_URL}/LAST_CHANGE) |
| |
| function getCanary() { |
| local existing_version="" |
| if [[ -f $CHROME_CANARY_REV_FILE && -x $CHROME_CANARY_BIN ]]; then |
| existing_version=`cat $CHROME_CANARY_REV_FILE` |
| echo "Found cached Chrome Canary version: $existing_version" |
| fi |
| |
| if [[ "$existing_version" != "$CHROME_REV" ]]; then |
| echo "Downloading Chrome Canary version: $CHROME_REV" |
| rm -fR $CHROME_CANARY_DIR |
| mkdir -p $CHROME_CANARY_DIR |
| |
| local file=$CHROME_NAME.zip |
| curl ${CHROME_URL}/${CHROME_REV}/$file -o $file |
| unzip $file -d $CHROME_CANARY_DIR |
| rm $file |
| echo $CHROME_REV > $CHROME_CANARY_REV_FILE |
| fi |
| } |
| |
| getCanary >&2 |
| |
| echo $CHROME_CANARY_BIN |
