/
gulp
executable file
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/
gulp
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#!/bin/bash
#
# A Gulp Launcher for *nix and Cygwin
#
readonly JQ_VERSION=1.3
readonly DEFAULT_NODE_VERSION=0.10.33
readonly DEFAULT_NPM_VERSION=1.4.12
readonly DEFAULT_GULP_VERSION=3.8.10
readonly BASE_LOCAL_DIR=$HOME/.gulp-launcher
readonly OS_LINUX="LINUX"
readonly OS_MAC="MAC"
readonly OS_CYGWIN="CYGWIN"
readonly ARCH_32="i686"
readonly ARCH_64="x86_64"
# Gets the system os and architecture
#
# Sets:
# OS
# ARCH
#
function get_system_info() {
if [ "$OS" != "$OS_LINUX" ] && [ "$OS" != "$OS_MAC" ] && [ "$OS" != "$OS_CYGWIN" ]; then
readonly ARCH=$(uname -m)
if [ "$ARCH" != "$ARCH_32" ] && [ "$ARCH" != "$ARCH_64" ]; then
echo "Did not recognize system architecture: $ARCH"
exit 1
fi
if [ "$(uname)" == "Darwin" ]; then
readonly OS=$OS_MAC
elif [ "$(uname -s)" == "CYGWIN_NT-5.1" ] || [ "$(uname -s)" == "CYGWIN_NT-6.1" ] || [ "$(uname -s)" == "CYGWIN_NT-6.1-WOW64" ] || [ "$(uname -s)" == "MINGW32_NT-6.2" ]; then
readonly OS=$OS_CYGWIN
elif [ "$(uname -o)" == "Cygwin" ]; then
readonly OS=$OS_CYGWIN
elif [ "$(uname -o)" == "GNU/Linux" ]; then
readonly OS=$OS_LINUX
else
echo "Did not recognize OS: $(uname)"
exit 1
fi
fi
}
# Run jq (json query tool) (downloading it if needed)
#
# Requires:
# BASE_LOCAL_DIR
# JQ_VERSION
# OS
# OS_LINUX
# OS_MAC
# OS_CYGWIN
# ARCH
# ARCH_32
# ARCH_64
#
# Sets:
# JQ_BIN
#
function download_jq() {
get_system_info
if [ "$JQ_BIN" == "" ]; then
readonly JQ_BIN=$BASE_LOCAL_DIR/tools/jq-$JQ_VERSION
if [ ! -e $JQ_BIN ]; then
$(mkdir -p $BASE_LOCAL_DIR/tools)
local JQ_HOST="stedolan.github.io"
if [ "$OS" == "$OS_LINUX" ] && [ "$ARCH" == "$ARCH_32" ]; then
local JQ_PATH="/jq/download/linux32/jq-$JQ_VERSION/jq"
elif [ "$OS" == "$OS_LINUX" ] && [ "$ARCH" == "$ARCH_64" ]; then
local JQ_PATH="/jq/download/linux64/jq-$JQ_VERSION/jq"
elif [ "$OS" == "$OS_MAC" ] && [ "$ARCH" == "$ARCH_32" ]; then
local JQ_PATH="/jq/download/osx32/jq-$JQ_VERSION/jq"
elif [ "$OS" == "$OS_MAC" ] && [ "$ARCH" == "$ARCH_64" ]; then
local JQ_PATH="/jq/download/osx64/jq-$JQ_VERSION/jq"
elif [ "$OS" == "$OS_CYGWIN" ] && [ "$ARCH" == "$ARCH_32" ]; then
local JQ_PATH="/jq/download/win32/jq-$JQ_VERSION/jq-$JQ_VERSION.exe"
elif [ "$OS" == "$OS_CYGWIN" ] && [ "$ARCH" == "$ARCH_64" ]; then
local JQ_PATH="/jq/download/win64/jq-$JQ_VERSION/jq-$JQ_VERSION.exe"
fi
echo "Downloading jq $JQ_VERSION for $ARCH $OS"
$(curl -s -o $JQ_BIN https://$JQ_HOST$JQ_PATH)
$(chmod +x $JQ_BIN)
fi
fi
}
# Parse the package.json to figure out the raw node version
#
# Requires:
# JQ_BIN
#
# Sets:
# NODE_RAW_VERSION
#
function get_raw_node_version() {
if [ "$NODE_RAW_VERSION" == "" ]; then
download_jq
readonly NODE_RAW_VERSION=$($JQ_BIN -r '.engines.node' package.json)
fi
}
# Gets the Node version number
#
# Requires:
# NODE_RAW_VERSION
#
# Sets:
# NODE_VERSION
#
function get_node_version() {
if [ "$NODE_VERSION" == "" ]; then
get_raw_node_version
if [ "$NODE_RAW_VERSION" == "null" ]; then
echo "The Node version was not specified."
read -t 10 -p "Should the latest be used? [yes] " USE_LATEST
if [ "$USE_LATEST" == "yes" ] || [ "$USE_LATEST" == "" ]; then
readonly NODE_VERSION=$(curl -s https://semver.io/node/stable)
fi
else
# does the raw version need to be resolved because it contains: ^ x ~ < >
if [ "${NODE_RAW_VERSION#*x}" != "$NODE_RAW_VERSION" ] ||
[ "${NODE_RAW_VERSION#*~}" != "$NODE_RAW_VERSION" ] ||
[ "${NODE_RAW_VERSION#*>}" != "$NODE_RAW_VERSION" ] ||
[ "${NODE_RAW_VERSION#*<}" != "$NODE_RAW_VERSION" ] ||
[ "${NODE_RAW_VERSION#*^}" != "$NODE_RAW_VERSION" ]; then
readonly NODE_VERSION=$(curl -m 10 -s https://semver.io/node/resolve/$NODE_RAW_VERSION)
else
readonly NODE_VERSION=$NODE_RAW_VERSION
fi
fi
if [ -z $NODE_VERSION ]; then
echo "Exiting because the Node version could not be determined."
echo "Set a specific node version in the package.json file."
exit 1
fi
fi
}
# Downloads Node
#
# Requires:
# NODE_VERSION
# OS
# OS_LINUX
# OS_MAC
# OS_CYGWIN
# ARCH
# ARCH_32
# ARCH_64
#
# Sets:
# NODE_BIN
# NPM_BIN
#
function download_node() {
if [ "$NODE_BIN" == "" ]; then
get_system_info
get_node_version
# download Node binary
local NODE_DIR=$BASE_LOCAL_DIR/tools/node-$NODE_VERSION
if [ $OS == $OS_LINUX ] && [ $ARCH == $ARCH_32 ]; then
local NODE_DOWNLOAD_PATH="/dist/v${NODE_VERSION}/node-v${NODE_VERSION}-linux-x86.tar.gz"
readonly NODE_BIN=$NODE_DIR/node-v${NODE_VERSION}-linux-x86/bin/node
readonly NPM_BIN=$NODE_DIR/node-v${NODE_VERSION}-linux-x86/bin/npm
elif [ $OS == $OS_LINUX ] && [ $ARCH == $ARCH_64 ]; then
local NODE_DOWNLOAD_PATH="/dist/v${NODE_VERSION}/node-v${NODE_VERSION}-linux-x64.tar.gz"
readonly NODE_BIN=$NODE_DIR/node-v${NODE_VERSION}-linux-x64/bin/node
readonly NPM_BIN=$NODE_DIR/node-v${NODE_VERSION}-linux-x64/bin/npm
elif [ $OS == $OS_MAC ] && [ $ARCH == $ARCH_32 ]; then
local NODE_DOWNLOAD_PATH="/dist/v${NODE_VERSION}/node-v${NODE_VERSION}-darwin-x86.tar.gz"
readonly NODE_BIN=$NODE_DIR/node-v${NODE_VERSION}-darwin-x86/bin/node
readonly NPM_BIN=$NODE_DIR/node-v${NODE_VERSION}-darwin-x86/bin/npm
elif [ $OS == $OS_MAC ] && [ $ARCH == $ARCH_64 ]; then
local NODE_DOWNLOAD_PATH="/dist/v${NODE_VERSION}/node-v${NODE_VERSION}-darwin-x64.tar.gz"
readonly NODE_BIN=$NODE_DIR/node-v${NODE_VERSION}-darwin-x64/bin/node
readonly NPM_BIN=$NODE_DIR/node-v${NODE_VERSION}-darwin-x64/bin/npm
elif [ $OS == $OS_CYGWIN ] && [ $ARCH == $ARCH_32 ]; then
local NODE_DOWNLOAD_PATH="/dist/v${NODE_VERSION}/node.exe"
readonly NODE_BIN=$NODE_DIR/node.exe
readonly NPM_BIN="$NODE_BIN $NODE_DIR/node_modules/npm/cli.js"
elif [ $OS == $OS_CYGWIN ] && [ $ARCH == $ARCH_64 ]; then
local NODE_DOWNLOAD_PATH="/dist/v${NODE_VERSION}/x64/node.exe"
readonly NODE_BIN=$NODE_DIR/node.exe
readonly NPM_BIN="$NODE_BIN $NODE_DIR/node_modules/npm/cli.js"
fi
if [[ ! -e $NODE_DIR ]]; then
local NODE_HOST="nodejs.org"
$(mkdir -p $NODE_DIR)
if [ $OS == $OS_CYGWIN ]; then
echo "Downloading Node $NODE_VERSION for $ARCH $OS"
$(curl -s -o $NODE_BIN https://$NODE_HOST$NODE_DOWNLOAD_PATH)
echo "Downloading npm $DEFAULT_NPM_VERSION for $ARCH $OS"
$(curl -s -o $NODE_DIR/npm.tgz http://$NODE_HOST/dist/npm/npm-$DEFAULT_NPM_VERSION.tgz)
$(mkdir -p $NODE_DIR/node_modules)
$(tar -z -x -f $NODE_DIR/npm.tgz -C $NODE_DIR/node_modules)
$(rm $NODE_DIR/npm.tgz)
else
echo "Downloading Node $NODE_VERSION for $ARCH $OS"
$(curl -s -o $NODE_DIR/node.zip https://$NODE_HOST$NODE_DOWNLOAD_PATH)
$(tar -z -x -f $NODE_DIR/node.zip -C $NODE_DIR)
$(rm $NODE_DIR/node.zip)
fi
fi
fi
}
# Downloads Gulp
#
# Requires:
# JQ_BIN
# NPM_BIN
#
# Sets:
# GULP_BIN
#
download_gulp() {
if [ "$GULP_BIN" == "" ]; then
download_jq
local GULP_RAW_VERSION=$($JQ_BIN -r '.devDependencies.gulp' package.json)
download_node
$NPM_BIN config set spin=false
if [ "$GULP_RAW_VERSION" == "null" ]; then
echo "No Gulp dependency was found in your package.json file"
read -t 10 -p "Should the latest be used? [yes] " USE_LATEST
if [ "$USE_LATEST" == "yes" ] || [ "$USE_LATEST" == "" ]; then
$NPM_BIN install --save-dev gulp
fi
else
$NPM_BIN install
fi
readonly GULP_BIN=node_modules/gulp/bin/gulp.js
if [ ! -e $GULP_BIN ]; then
echo "Gulp could not be downloaded. Exiting."
exit 1
fi
fi
}
# Runs gulp on the project
#
# Requires:
# NODE_BIN
# GULP_BIN
#
function run_gulp() {
download_node
download_gulp
$NODE_BIN $GULP_BIN $*
}
#
# Main
#
if [ ! -e package.json ]; then
echo "You need to run gulp in a directory containing a package.json file."
read -t 10 -p "Should one be created for you? [yes] " CREATE_PACKAGE_JSON
if [ "$CREATE_PACKAGE_JSON" == "yes" ] || [ "$CREATE_PACKAGE_JSON" == "" ]; then
cat <<EOF > package.json
{
"name": "YOUR_PROJECT_NAME",
"version": "0.0.0",
"description": "YOUR PROJECT DESCRIPTION",
"devDependencies": {
"gulp": "$DEFAULT_GULP_VERSION"
},
"engines": {
"node": "$DEFAULT_NODE_VERSION",
"npm": "$DEFAULT_NPM_VERSION"
}
}
EOF
echo
else
echo "No package.json found. Exiting."
exit 1
fi
fi
if [ ! -e gulpfile.js ]; then
echo "You need to run gulp in a directory containing a gulpfile.js file."
read -t 10 -p "Should one be created for you? [yes] " CREATE_GULPFILE
if [ "$CREATE_GULPFILE" == "yes" ] || [ "$CREATE_GULPFILE" == "" ]; then
cat <<EOF > gulpfile.js
var gulp = require('gulp');
gulp.task('default', function() {
// place code for your default task here
});
EOF
echo
else
echo "No gulpfile.js found. Exiting."
exit 1
fi
fi
run_gulp $*