Merge pull request #21 from ayushjn20/dunner-script

Add installation script for dunner

Author: agentmilindu

installers/dunner/install.sh

@@ -0,0 +1,177 @@
+#!/bin/bash
+
+set -e
+if [[ -z $DUNNER_VERSION ]]; then
+    VERSION='latest'
+else
+    VERSION="v${DUNNER_VERSION}"
+fi
+
+RELEASES_URL="https://github.com/leopardslab/dunner/releases"
+REPO_URL="https://github.com/leopardslab/dunner"
+API_URL="https://api.github.com/repos/leopardslab/dunner/releases"
+
+initVersion() {
+    echo "Checking from versions available..."
+    # Resolve latest version
+    if [[ $VERSION == 'latest' ]]; then
+        VERSION=$(curl -s ${API_URL}/latest | grep -wo '"tag_name":\ .*' | sed s/'"tag_name":\ "'//g | sed s/'",'//g)
+    fi
+}
+
+gitClone() {
+    # Cloning repository from GitHub
+    git clone $REPO_URL $TARGET_DIR
+    cd $TARGET_DIR
+    git config --local advice.detachedHead false
+    if [[ $VERSION == 'current' ]]; then
+        echo "Checking out from master branch"
+    elif [[ $VERSION == 'latest' ]]; then
+        echo "Checking out latest version of dunner"
+        git checkout tags/$(git describe --tags | sed s/''//g)
+    else
+        echo "Checking out dunner repo with version $VERSION..."
+        git checkout tags/$VERSION
+    fi
+    echo
+}
+
+installFromSource() {
+    echo
+    # Installing dep...
+    if [[ -z $(which dep) ]]; then
+        echo "Installing dep..."
+        curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+    fi
+
+    TARGET_DIR="${GOPATH}/src/github.com/leopardslab/dunner"
+    mkdir -p $TARGET_DIR
+    if [[ $(which git) ]]; then
+        gitClone
+    else
+        echo "'git' not found. Please install git"
+        exit 1
+    fi
+
+    cd $TARGET_DIR
+    if [[ -z $(which dep) ]]; then
+        echo "Command 'dep' not found. Please install 'dep'"
+        exit 1
+    else
+        echo "Installing dependencies using 'dep'..."
+        dep ensure
+        echo "Installing dunner..."
+        go install # TODO -- Flags
+    fi
+}
+
+raiseVersionError() {
+    echo "Could not find version $VERSION for dunner."
+    exit 1
+}
+
+promptSrcInstall() {
+    # Prompt user to confirm to whether download the source
+    # and install using go.
+    read -p "Install from source code?[y/N] " -n 1 -r
+    echo
+    if [[ $(echo $REPLY | grep -o '^[Yy]$') ]]; then
+        installFromSource
+    else
+        echo "Dunner not installed; Exited!"
+        exit 0
+    fi
+}
+
+binInstall() {
+    # Binary installation from the release page.
+    ARCH=$(uname -m)
+    OS=$(uname -s)
+
+    ver=$(echo $VERSION | sed s/v//g)
+    release=$(curl -s ${API_URL} | grep -i "\"name\": \"dunner_${ver}_${OS}_${ARCH}.tar.gz\",")
+    if [[ -z $release ]]; then
+        echo "OS $OS with $ARCH architecture is not supported corresponding to version $VERSION"
+        echo
+        promptSrcInstall
+    elif [[ $(which tar) ]]; then
+        downloadUrl="${RELEASES_URL}/download/${VERSION}/dunner_${ver}_${OS}_${ARCH}.tar.gz"
+        echo "Downloading dunner_${ver}_${OS}_${ARCH}..."
+        wget -O "dunner.tar.gz" $downloadUrl 2>/dev/null || curl -o "dunner.tar.gz" -L $downloadUrl
+        if [[ $OS == 'Linux' || $OS == 'Darwin' ]]; then
+            tar -xf dunner.tar.gz
+            cp dunner /usr/bin/
+        fi
+    else
+        echo "'tar' command not found..."
+        echo
+        if [[ $1 == '-y' ]]; then
+            installFromSource
+        else
+            promptSrcInstall
+        fi
+    fi
+}
+
+initInstall() {
+    ARCH=$(uname -m)
+    OS=$(uname -s)
+    ver=$(echo $VERSION | sed s/v//g)
+    # if [[ $ARCH == 'i386' ]]; then
+    #     ARCH="386"
+    # elif [[ $ARCH == 'x86_64' ]]; then
+    #     ARCH="amd64"
+    # fi
+    if [[ $(which dpkg) ]]; then
+        pkg=$(curl -s ${API_URL}/tags/${VERSION} | grep -io "\"name\": \"dunner_${ver}_${OS}_${ARCH}\.deb" | sed s/'"name": "'//g)
+        if [[ -z $pkg ]]; then
+            echo "Deb package not found for $OS-$ARCH for version $VERSION"
+        else
+            downloadUrl="${RELEASES_URL}/download/${VERSION}/${pkg}"
+            echo "Downloading ${pkg} as dunner.deb..."
+            wget -O "dunner.deb" $downloadUrl 2>/dev/null || curl -o "dunner.deb" -L $downloadUrl
+            echo "Installing from dunner.deb"
+            dpkg -i dunner.deb
+            rm dunner.deb
+            exit 0
+        fi
+    fi
+
+    if [[ $(which rpm) ]]; then
+        pkg=$(curl -s ${API_URL}/tags/${VERSION} | grep -io "\"name\": \"dunner_${ver}_${OS}_${ARCH}\.rpm" | sed s/'"name": "'//g)
+        if [[ -z $pkg ]]; then
+            echo "RPM package not found for $OS-$ARCH for version $VERSION"
+        else
+            downloadUrl="${RELEASES_URL}/download/${VERSION}/${pkg}"
+            echo "Downloading ${pkg} as dunner.rpm..."
+            wget -O "dunner.rpm" $downloadUrl 2>/dev/null || curl -o "dunner.rpm" -L $downloadUrl
+            echo "Installing from dunner.rpm"
+            rpm -ivh dunner.rpm
+            rm dunner.rpm
+            exit 0
+        fi
+    fi
+    binInstall
+}
+
+if [[ $(which dunner) ]]; then
+    echo "dunner already installed at $(which dunner)"
+    exit 1
+fi
+
+if [[ -z $(which docker) ]]; then
+    echo "Docker not found. Please install docker to use dunner"
+    exit 1
+fi
+
+echoConstants() {
+    echo $API_URL
+    echo $RELEASES_URL
+    echo $REPO_URL
+}
+# echoConstants
+initVersion
+if [[ $1 == '-y' ]]; then
+    echo "'-y' argument passed, will install from source if required"
+fi
+initInstall