bnielsen1965 · April 28, 2017 19:37 · Apr 28, 2017 · Apr 19, 2016 · Apr 19, 2016 · Apr 19, 2016
diff --git a/fedora-install-nodejs.sh b/fedora-install-nodejs.sh
@@ -1,45 +1,223 @@
 #!/usr/bin/env bash
+#
+# NodeJS Installer based on https://gist.github.com/trajakovic/ad9f91776dea3b495db0
+#
+# Added version option and distinct commands for install, uninstall, path setting,
+# and removepath setting.
+#
+# https://gist.github.com/bnielsen1965
+#
+# THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
+# EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+# PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
+# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
+# PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
+# NECESSARY SERVICING, REPAIR OR CORRECTION.
+#
 
-func_check_for_root() {
-        if [ ! $( id -u ) -eq 0 ]; then
-            echo "ERROR: $0 Must be run as root, Script terminating" ;exit 7
-        fi
-    }
-func_check_for_root
-
-#SETUP PARAMS
+# default parameters
+NODEJS_DIST_URI="https://nodejs.org/dist"
+PATH_HEADER="#### added by fedora-install-nodejs - DO NOT EDIT ####"
+PATH_FOOTER="#### fedora-install-nodejs end - DO NOT EDIT ####"
+INSTALL_PATH="/usr/lib"
+INSTALL_COMMAND="install"
 NODE_VERSION="v5.10.1"
-NODE_INT_VERSION="5101"
-NODE_FILE=node-${NODE_VERSION}-linux-x64.tar.gz
-NODE_FOLDER=node-${NODE_VERSION}-linux-x64
-NODE_URI="https://nodejs.org/dist/${NODE_VERSION}/${NODE_FILE}"
-
-cd /usr/lib
-
-if [[ ! -e "${NODE_FOLDER}" ]]; then
-    #install DevTools for NPM
-    dnf groupinstall -y 'Development Tools'
-    dnf install -y gcc-c++
-
-    # get node
-    wget ${NODE_URI}
-    # extract
-    tar xvf ${NODE_FILE}
-    # remove tar
-    rm ${NODE_FILE} -f
-
-    # install alternatives
-    update-alternatives --install /usr/bin/node node /usr/lib/${NODE_FOLDER}/bin/node ${NODE_INT_VERSION}
-    update-alternatives --install /usr/bin/npm npm /usr/lib/${NODE_FOLDER}/bin/npm ${NODE_INT_VERSION}
-
-    # update $PATH to make `npm install -g` visible
-    cat <<EOF >> /home/${SUDO_USER:-$USER}/.bashrc
-    
-# added by https://gist.github.com/trajakovic/ad9f91776dea3b495db0 - NodeJs 'installer'
+
+
+PACKAGE=`basename $0`
+
+
+# display usage help
+function Usage()
+{
+	cat <<-ENDOFMESSAGE
+$PACKAGE - Install a specific nodejs version from ${NODEJS_DIST_URI}.
+Run as root to install or uninstall specific versions of nodejs.
+Run as a normal user to set or remove the user's PATH settings.
+
+$PACKAGE [command] [options]
+arguments:
+command - the command to execute, i|install (default), u|uninstall, p|path, r|removepath
+
+options:
+  -h, --help show brief help
+  -v, --version NODE_VERSION the version to install, i.e. v4.4.7
+NOTE: This command must be executed as root. The command will fail if the nodejs package is installed.
+ENDOFMESSAGE
+exit
+}
+
+
+# die with message
+function Die()
+{
+	echo "$* Use -h option to display help."
+	exit 1
+}
+
+
+# process command line arguments into values to use
+function ProcessArguments() {
+	# separate options from arguments
+	while [ $# -gt 0 ]
+	do
+		opt=$1
+		shift
+		case ${opt} in
+			-v|--version)
+				if [ $# -eq 0 -o "${1:0:1}" = "-" ]; then
+					Die "The ${opt} option requires an version number, i.e. -v v4.4.7."
+				fi
+				export NODE_VERSION=$1
+				shift
+				;;
+			-h|--help)
+				Usage;;
+			*)
+				if [ "${opt:0:1}" = "-" ]; then
+					Die "${opt}: unknown option."
+				fi
+				ARGV+=(${opt});;
+		esac
+	done
+
+	if [ ${#ARGV[@]} -gt 0 ]; then
+		export INSTALL_COMMAND=${ARGV[0]}
+	fi
+}
+
+
+# build environment
+function BuildEnvironment()
+{
+	export NODE_INT_VERSION=`echo $NODE_VERSION | sed 's/[\.v]//g'`
+	export NODE_FILE=node-${NODE_VERSION}-linux-x64.tar.gz
+	export NODE_FOLDER=node-${NODE_VERSION}-linux-x64
+	export NODE_URI="${NODEJS_DIST_URI}/${NODE_VERSION}/${NODE_FILE}"
+}
+
+
+# check that user is root
+function IsRoot() {
+	if [ ! $( id -u ) -eq 0 ]; then
+		Die "$0 Must be run as root."
+	fi
+}
+
+
+# check package is installed
+function IsInstalled() {
+	if dnf list installed "$@" >/dev/null 2>&1; then
+		true
+	else
+		false
+	fi
+}
+
+
+# install nodejs
+function InstallNodeJS() {
+	IsRoot
+
+	if IsInstalled "nodejs"; then Die "The nodejs package is installed! It must be removed first."; fi
+
+	cd $INSTALL_PATH
+
+	if [[ -e "${NODE_FOLDER}" ]]; then Die "Looks like this nodejs version (${NODE_FOLDER}) is already installed."; fi
+
+	if ! IsInstalled "gcc-c++"; then
+		# install DevTools for NPM
+		echo "Installing Development Tools for NPM"
+		dnf groupinstall -y 'Development Tools'
+		dnf install -y gcc-c++
+	fi
+
+	# get node
+	wget ${NODE_URI}
+
+	# extract
+	tar xvf ${NODE_FILE}
+
+	# remove tar
+	rm ${NODE_FILE} -f
+
+	# install alternatives
+	update-alternatives --install /usr/bin/node node /usr/lib/${NODE_FOLDER}/bin/node ${NODE_INT_VERSION}
+	update-alternatives --install /usr/bin/npm npm /usr/lib/${NODE_FOLDER}/bin/npm ${NODE_INT_VERSION}
+
+	echo "Install complete. Update user PATH value by running the following command as the user: $0 -v ${NODE_VERSION} path"
+}
+
+
+# uninstall nodejs
+function UninstallNodeJS() {
+	IsRoot
+
+	cd $INSTALL_PATH
+
+	if [[ ! -e "${NODE_FOLDER}" ]]; then Die "This version of nodejs (${NODE_FOLDER}) is not installed."; fi
+
+	# remove install
+	rm -r ${NODE_FOLDER};
+
+	update-alternatives --remove node /usr/lib/${NODE_FOLDER}/bin/node
+	update-alternatives --remove npm /usr/lib/${NODE_FOLDER}/bin/npm
+
+	echo "Uninstall complete. Update user PATH value by running the following command as the user: $0 -v ${NODE_VERSION} removepath"
+}
+
+
+# update $PATH to make `npm install -g` visible
+function UpdatePath() {
+	if [[ ! -e "${INSTALL_PATH}/${NODE_FOLDER}" ]]; then Die "This version of nodejs (${NODE_FOLDER}) is not installed."; fi
+
+	# remove any pre-existing path setting
+	RemovePath
+
+	# update $PATH to make `npm install -g` visible
+	cat <<EOF >> "${HOME}/.bashrc"
+$PATH_HEADER
 export PATH=\$PATH:/usr/lib/${NODE_FOLDER}/bin
+$PATH_FOOTER
 EOF
-else
-    echo Looks like node is already installed:
-    echo ""
-    update-alternatives --display node
-fi
+}
+
+
+# remove $PATH from bashrc
+function RemovePath() {
+	# remove any pre-existing path setting
+	RemoveEntry "${PATH_HEADER}" "${PATH_FOOTER}" "${HOME}/.bashrc"
+}
+
+
+
+# remove an entry with the specified header and footer from the specified file
+function RemoveEntry(){ # $1 -> Header,  $2 -> Footer , $3 -> Name of file to edit
+	sed -i.bak "/$1/,/$2/d" "$3"
+}
+
+
+# prepare to execute command
+ProcessArguments $*
+BuildEnvironment
+
+
+# process command
+case ${INSTALL_COMMAND} in
+	i|install)
+		InstallNodeJS
+		;;
+	u|uninstall)
+		UninstallNodeJS
+		;;
+	p|path)
+		UpdatePath
+		;;
+	r|removepath)
+		RemovePath
+		;;
+	*)
+		Die "${INSTALL_COMMAND} is an unknown command."
+		;;
+esac
diff --git a/fedora-install-nodejs.sh b/fedora-install-nodejs.sh
@@ -33,7 +33,7 @@ if [[ ! -e "${NODE_FOLDER}" ]]; then
     update-alternatives --install /usr/bin/npm npm /usr/lib/${NODE_FOLDER}/bin/npm ${NODE_INT_VERSION}
 
     # update $PATH to make `npm install -g` visible
-    cat <<EOF >> /home/${SUDO_USER:-$USER}/.bash_profile
+    cat <<EOF >> /home/${SUDO_USER:-$USER}/.bashrc
     
 # added by https://gist.github.com/trajakovic/ad9f91776dea3b495db0 - NodeJs 'installer'
 export PATH=\$PATH:/usr/lib/${NODE_FOLDER}/bin

diff --git a/fedora-install-nodejs.sh b/fedora-install-nodejs.sh
@@ -8,8 +8,8 @@ func_check_for_root() {
 func_check_for_root
 
 #SETUP PARAMS
-NODE_VERSION="v5.7.0"
-NODE_INT_VERSION="570"
+NODE_VERSION="v5.10.1"
+NODE_INT_VERSION="5101"
 NODE_FILE=node-${NODE_VERSION}-linux-x64.tar.gz
 NODE_FOLDER=node-${NODE_VERSION}-linux-x64
 NODE_URI="https://nodejs.org/dist/${NODE_VERSION}/${NODE_FILE}"

diff --git a/fedora-install-nodejs.sh b/fedora-install-nodejs.sh
@@ -31,6 +31,13 @@ if [[ ! -e "${NODE_FOLDER}" ]]; then
     # install alternatives
     update-alternatives --install /usr/bin/node node /usr/lib/${NODE_FOLDER}/bin/node ${NODE_INT_VERSION}
     update-alternatives --install /usr/bin/npm npm /usr/lib/${NODE_FOLDER}/bin/npm ${NODE_INT_VERSION}
+
+    # update $PATH to make `npm install -g` visible
+    cat <<EOF >> /home/${SUDO_USER:-$USER}/.bash_profile
+    
+# added by https://gist.github.com/trajakovic/ad9f91776dea3b495db0 - NodeJs 'installer'
+export PATH=\$PATH:/usr/lib/${NODE_FOLDER}/bin
+EOF
 else
     echo Looks like node is already installed:
     echo ""

diff --git a/fedora-install-nodejs.sh b/fedora-install-nodejs.sh
@@ -8,8 +8,8 @@ func_check_for_root() {
 func_check_for_root
 
 #SETUP PARAMS
-NODE_VERSION="v5.0.0"
-NODE_INT_VERSION="500"
+NODE_VERSION="v5.7.0"
+NODE_INT_VERSION="570"
 NODE_FILE=node-${NODE_VERSION}-linux-x64.tar.gz
 NODE_FOLDER=node-${NODE_VERSION}-linux-x64
 NODE_URI="https://nodejs.org/dist/${NODE_VERSION}/${NODE_FILE}"

diff --git a/fedora-install-nodejs.sh b/fedora-install-nodejs.sh
@@ -19,7 +19,7 @@ cd /usr/lib
 if [[ ! -e "${NODE_FOLDER}" ]]; then
     #install DevTools for NPM
     dnf groupinstall -y 'Development Tools'
-    dnf install -qy gcc-c++
+    dnf install -y gcc-c++
 
     # get node
     wget ${NODE_URI}

diff --git a/fedora-install-nodejs.sh b/fedora-install-nodejs.sh
@@ -18,7 +18,7 @@ cd /usr/lib
 
 if [[ ! -e "${NODE_FOLDER}" ]]; then
     #install DevTools for NPM
-    dnf groupinstall -qy 'Development Tools'
+    dnf groupinstall -y 'Development Tools'
     dnf install -qy gcc-c++
 
     # get node

diff --git a/fedora-install-nodejs.sh b/fedora-install-nodejs.sh
@@ -8,8 +8,8 @@ func_check_for_root() {
 func_check_for_root
 
 #SETUP PARAMS
-NODE_VERSION="v4.1.1"
-NODE_INT_VERSION="411"
+NODE_VERSION="v5.0.0"
+NODE_INT_VERSION="500"
 NODE_FILE=node-${NODE_VERSION}-linux-x64.tar.gz
 NODE_FOLDER=node-${NODE_VERSION}-linux-x64
 NODE_URI="https://nodejs.org/dist/${NODE_VERSION}/${NODE_FILE}"

diff --git a/fedora-install-nodejs.sh b/fedora-install-nodejs.sh
@@ -19,6 +19,7 @@ cd /usr/lib
 if [[ ! -e "${NODE_FOLDER}" ]]; then
     #install DevTools for NPM
     dnf groupinstall -qy 'Development Tools'
+    dnf install -qy gcc-c++
 
     # get node
     wget ${NODE_URI}

diff --git a/fedora-install-nodejs.sh b/fedora-install-nodejs.sh
@@ -31,5 +31,7 @@ if [[ ! -e "${NODE_FOLDER}" ]]; then
     update-alternatives --install /usr/bin/node node /usr/lib/${NODE_FOLDER}/bin/node ${NODE_INT_VERSION}
     update-alternatives --install /usr/bin/npm npm /usr/lib/${NODE_FOLDER}/bin/npm ${NODE_INT_VERSION}
 else
-    echo Looks like node is already installed
+    echo Looks like node is already installed:
+    echo ""
+    update-alternatives --display node
 fi
diff --git a/fedora-install-nodejs.sh b/fedora-install-nodejs.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+func_check_for_root() {
+        if [ ! $( id -u ) -eq 0 ]; then
+            echo "ERROR: $0 Must be run as root, Script terminating" ;exit 7
+        fi
+    }
+func_check_for_root
+
+#SETUP PARAMS
+NODE_VERSION="v4.1.1"
+NODE_INT_VERSION="411"
+NODE_FILE=node-${NODE_VERSION}-linux-x64.tar.gz
+NODE_FOLDER=node-${NODE_VERSION}-linux-x64
+NODE_URI="https://nodejs.org/dist/${NODE_VERSION}/${NODE_FILE}"
+
+cd /usr/lib
+
+if [[ ! -e "${NODE_FOLDER}" ]]; then
+    #install DevTools for NPM
+    dnf groupinstall -qy 'Development Tools'
+
+    # get node
+    wget ${NODE_URI}
+    # extract
+    tar xvf ${NODE_FILE}
+    # remove tar
+    rm ${NODE_FILE} -f
+
+    # install alternatives
+    update-alternatives --install /usr/bin/node node /usr/lib/${NODE_FOLDER}/bin/node ${NODE_INT_VERSION}
+    update-alternatives --install /usr/bin/npm npm /usr/lib/${NODE_FOLDER}/bin/npm ${NODE_INT_VERSION}
+else
+    echo Looks like node is already installed
+fi