[CIT-639] get tedge script installs all components (#517)

* Remove tedge_apt_plugin dependency from tedge_agent deb
* Add options parsing with support for minimal

Signed-off-by: Lukasz Woznicki <lukasz.woznicki@softwareag.com>

1 files changed, 72 insertions, 18 deletions

diff --git a/get-thin-edge_io.sh b/get-thin-edge_io.sh
index 30a1b3cb..5b1a73fc 100755
--- a/get-thin-edge_io.sh
+++ b/get-thin-edge_io.sh
@@ -1,6 +1,57 @@
 #!/bin/sh
 set -e
 
+TYPE=${2:-full}
+
+usage() {
+    cat <<EOF
+USAGE:
+    get-thin-edge_io [<VERSION>] [--minimal]
+
+ARGUMENTS:
+    <VERSION>     Install specific version of thin-edge.io - if not provided installs latest minor release
+
+OPTIONS:
+    --minimal   Install only basic set of components - tedge cli and tedge mappers
+
+EOF
+}
+
+install_basic_components() {
+    wget https://github.com/thin-edge/thin-edge.io/releases/download/${VERSION}/tedge_${VERSION}_${ARCH}.deb -P /tmp/tedge
+    wget https://github.com/thin-edge/thin-edge.io/releases/download/${VERSION}/tedge_mapper_${VERSION}_${ARCH}.deb -P /tmp/tedge
+
+    dpkg -i /tmp/tedge/tedge_${VERSION}_${ARCH}.deb
+    dpkg -i /tmp/tedge/tedge_mapper_${VERSION}_${ARCH}.deb
+
+}
+
+install_tedge_agent() {
+    wget https://github.com/thin-edge/thin-edge.io/releases/download/${VERSION}/tedge_agent_${VERSION}_${ARCH}.deb -P /tmp/tedge
+
+    dpkg -i /tmp/tedge/tedge_agent_${VERSION}_${ARCH}.deb
+}
+
+install_tedge_plugins() {
+    wget https://github.com/thin-edge/thin-edge.io/releases/download/${VERSION}/tedge_apt_plugin_${VERSION}_${ARCH}.deb -P /tmp/tedge
+    dpkg -i /tmp/tedge/tedge_apt_plugin_${VERSION}_${ARCH}.deb
+}
+
+if [ $# -lt 3 ]; then
+    while :; do
+        case $1 in
+        --minimal)
+            TYPE="minimal"
+            shift
+            ;;
+        *) break ;;
+        esac
+    done
+else
+    usage
+    exit 0
+fi
+
 VERSION=$1
 ARCH=$(dpkg --print-architecture)
 
@@ -15,8 +66,7 @@ fi
 
 echo "${BLUE}Thank you for trying thin-edge.io! ${COLORRESET}\n"
 
-if [ -z "$VERSION" ]
-then
+if [ -z "$VERSION" ]; then
     VERSION=0.4.0
 
     echo "Version argument has not been provided, installing latest: ${BLUE}$VERSION${COLORRESET}"
@@ -24,17 +74,14 @@ then
     echo "For example: ${BLUE}sudo ./get-thin-edge_io.sh $VERSION${COLORRESET}"
 fi
 
-if [ "$ARCH" = "aarch64" ] || [ "$ARCH" = "arm64" ] || [ "$ARCH" = "armhf" ]  || [ "$ARCH" = "amd64" ]
-then
+if [ "$ARCH" = "aarch64" ] || [ "$ARCH" = "arm64" ] || [ "$ARCH" = "armhf" ] || [ "$ARCH" = "amd64" ]; then
     # Some OSes may read architecture type as `aarch64`, `aarch64` and `arm64` are the same architectures types.
-    if [ "$ARCH" = "aarch64" ]
-    then
+    if [ "$ARCH" = "aarch64" ]; then
         ARCH='arm64'
     fi
 
     # For arm64, only the versions above 0.3.0 are available.
-    if [ "$ARCH" = "arm64" ] && ! dpkg --compare-versions "$VERSION" ge "0.3.0"
-    then
+    if [ "$ARCH" = "arm64" ] && ! dpkg --compare-versions "$VERSION" ge "0.3.0"; then
         echo "aarch64/arm64 compatible packages are only available for version 0.3.0 or above."
         exit 1
     fi
@@ -45,26 +92,33 @@ else
     exit 0
 fi
 
-if [ -d "/tmp/tedge" ]
-then
+if [ -d "/tmp/tedge" ]; then
     rm -R /tmp/tedge
 fi
 
 echo "${BLUE}Installing mosquitto as prerequirement for thin-edge.io${COLORRESET}"
 apt install mosquitto -y
 
-wget https://github.com/thin-edge/thin-edge.io/releases/download/${VERSION}/tedge_${VERSION}_${ARCH}.deb -P /tmp/tedge
-wget https://github.com/thin-edge/thin-edge.io/releases/download/${VERSION}/tedge_mapper_${VERSION}_${ARCH}.deb -P /tmp/tedge
-
-dpkg -i /tmp/tedge/tedge_${VERSION}_${ARCH}.deb
-dpkg -i /tmp/tedge/tedge_mapper_${VERSION}_${ARCH}.deb
+case $TYPE in
+minimal) install_basic_components ;;
+full)
+    install_basic_components
+    install_tedge_agent
+    if apt -v &>/dev/null; then
+        install_tedge_plugins
+    fi
+    ;;
+*)
+    echo "Unsupported argument type."
+    exit 1
+    ;;
+esac
 
 rm -R /tmp/tedge
 
 # Test if tedge command is there and working
-tedge help > /dev/null
-if [ $? -eq 0 ]
-then
+tedge help >/dev/null
+if [ $? -eq 0 ]; then
     echo "\n${BLUE}thin-edge.io is now installed on your system!${COLORRESET}"
     echo ""
     echo "To administrate your thin-edge.io installation your user has to be part of the group 'tedge-users'."