Syntax, structure, indent and unneeded logic fixes

- Fix unset usage.
- Fix some missing -e in echo where needed.
- Add some echos, before running some commands.
- Minor alignment fixes.
- Don't use 'newgrp' upon lxd install, seems to have no effect.
- Unify command output redirection formatting.
- Make some multi-line commands to be in one line.

Author: jezek

crossbuilder

@@ -162,7 +162,7 @@ check_lxd_accessible () {
     # /bin/lxd is replaced with a script which tells you to install the lxd snap
     # on later versions of Ubuntu.
     LXD=`which lxd`
-    if (grep 'snap install lxd' "$LXD" >/dev/null) && [ ! -f /snap/bin/lxd ] ; then
+    if (grep 'snap install lxd' "$LXD" > /dev/null) && [ ! -f /snap/bin/lxd ] ; then
         $LXD
         exit 1
     fi
@@ -231,24 +231,24 @@ setup_lxd () {
         echo "this for you."
         echo "Press Enter to start"
         read KEY
-        unset $KEY
+        unset KEY
         # Ubuntu 16.04 specific workaround to set up
         sudo dpkg-reconfigure -p medium lxd
     fi
 
     if [ -n "$ENCRYPTED_HOME" ] ; then
-        echo -e -n "${ERROR_COLOR}Your home folder is encrypted. $PROGRAM_NAME will use priviledged "
+        echo -e -n "${ERROR_COLOR}Your home folder is encrypted. $PROGRAM_NAME will use privileged "
         echo -e -n "LXD containers and the default storage backend (slower).\n${NC}"
         sudo lxd init --auto
     else
         echo -e -n "${POSITIVE_COLOR}Would you like to setup LXD with ZFS in your home directory? (y/n) \n${NC}"
-        echo -n "This is recommended for faster operation, and also in case there is not enough "
-        echo -n "space in your / partition. \n"
+        echo -e -n "This is recommended for faster operation, and also in case there is not enough "
+        echo -e -n "space in your / partition. \n"
         read REPLY
         echo
         if [ "$REPLY" = y ]
         then
-            if ! which zpool > /dev/null ; then
+            if ! which zpool > /dev/null 2>&1; then
                 echo -e "${POSITIVE_COLOR}Installing ZFS.${NC}"
                 sudo apt-get install -y zfsutils-linux
             fi
@@ -261,6 +261,7 @@ setup_lxd () {
             # add automatic mount of zfs pool upon boot
             echo "zpool import -c /etc/zfs/zpool.cache -aN" | sudo tee /etc/rc.local
         else
+            echo "sudo lxd init --auto"
             sudo lxd init --auto
         fi
     fi
@@ -276,22 +277,20 @@ config_container_dir_mount () {
 }
 
 start_container () {
-    STATUS=$(lxc query "/1.0/containers/${LXD_CONTAINER}/state" | \
-                jq --raw-output '.status')
+    STATUS=$(lxc query "/1.0/containers/${LXD_CONTAINER}/state" | jq --raw-output '.status')
     if [ $STATUS = 'Stopped' ]; then
         # lxc start may give a failure code. It also may not, so we check
         # again in a bit.
         if ! lxc start $LXD_CONTAINER; then
-            echo $LXD_CONTAINER_FAILURE_MSG
+            echo -e $LXD_CONTAINER_FAILURE_MSG
             exit 1
         fi
     fi
 
     # Unfortunately we need to check again. We check for Started this time
     # because the monitor may be hung with the container failing, which will
     # give us much different output
-    STATUS=$(lxc query "/1.0/containers/${LXD_CONTAINER}/state" | \
-                jq --raw-output '.status')
+    STATUS=$(lxc query "/1.0/containers/${LXD_CONTAINER}/state" | jq --raw-output '.status')
     if [ "$STATUS" != 'Running' ]; then
         echo $LXD_CONTAINER_FAILURE_MSG
         exit 1
@@ -308,7 +307,7 @@ nonsdk_container_setup () {
         focal) ubports_repo_line="deb http://repo2.ubports.com/ $container_ubuntu_version main" ;;
     esac
     if [ -n "$ubports_repo_line" ]; then
-        exec_container_root "echo '$ubports_repo_line' >/etc/apt/sources.list.d/ubports.list"
+        exec_container_root "echo '$ubports_repo_line' > /etc/apt/sources.list.d/ubports.list"
     fi
 
     # Skip multiarch setup if not crossbuilding
@@ -330,7 +329,7 @@ nonsdk_container_setup () {
             exec_container_root "sed -E \
                 -e 's:(archive|security)\.ubuntu\.com/ubuntu/:ports.ubuntu.com/ubuntu-ports/:' \
                 -e 's:^deb :deb [arch=${TARGET_ARCH}] :' \
-                /etc/apt/sources.list >/etc/apt/sources.list.d/ports.list"
+                /etc/apt/sources.list > /etc/apt/sources.list.d/ports.list"
             exec_container_root "sed -i -E \
                 -e 's:^deb :deb [arch=${HOST_ARCH}] :' \
                 /etc/apt/sources.list"
@@ -341,7 +340,7 @@ nonsdk_container_setup () {
                 -e 's:ports\.ubuntu\.com/ubuntu-ports/ ([a-z]+)-security :security.ubuntu.com/ubuntu/ \1-security :' \
                 -e 's:ports\.ubuntu\.com/ubuntu-ports/ ([a-z-]+):archive.ubuntu.com/ubuntu/ \1 :' \
                 -e 's:^deb :deb [arch=${TARGET_ARCH}] :' \
-                /etc/apt/sources.list >/etc/apt/sources.list.d/non-ports.list"
+                /etc/apt/sources.list > /etc/apt/sources.list.d/non-ports.list"
             exec_container_root "sed -i -E \
                 -e 's:^deb :deb [arch=${HOST_ARCH}] :' \
                 /etc/apt/sources.list"
@@ -377,7 +376,7 @@ create_container () {
         exec_container_root "add-apt-repository -y ppa:ubports-developers/overlay"
         exec_container_root "add-apt-repository 'deb http://repo.ubports.com vivid main' >> /etc/apt/sources.list"
     fi
-    wget -qO - "https://repo.ubports.com/keyring.gpg" | exec_container_root 'cat >/etc/apt/trusted.gpg.d/ubports-keyring.gpg'
+    wget -qO - "https://repo.ubports.com/keyring.gpg" | exec_container_root 'cat > /etc/apt/trusted.gpg.d/ubports-keyring.gpg'
     if ! echo "$LXD_IMAGE" | grep -q "ubuntu-sdk"; then
         nonsdk_container_setup
     fi
@@ -593,7 +592,7 @@ install_foreign () {
         exec_container "mkdir -p foreign && cd foreign && apt-get download $dep && dpkg-deb -R $dep* tmp"
         exec_container "grep -vi '^multi' foreign/tmp/DEBIAN/control > foreign/tmp/DEBIAN/control.tmp"
         exec_container "mv foreign/tmp/DEBIAN/control.tmp foreign/tmp/DEBIAN/control"
-	exec_container "echo 'Multi-Arch: foreign' >> foreign/tmp/DEBIAN/control"
+        exec_container "echo 'Multi-Arch: foreign' >> foreign/tmp/DEBIAN/control"
         exec_container "cd foreign && dpkg-deb -b tmp $dep*"
         exec_container_root "dpkg -i $SOURCE_PATH_CONTAINER/foreign/$dep*"
         exec_container "rm -r foreign/"
@@ -649,8 +648,8 @@ copy_build_to_container () {
     lxc file push $SCRIPT_DIR/$CREATE_REPO_SCRIPT $LXD_CONTAINER$SOURCE_REPOSITORY/
     exec_container $SOURCE_REPOSITORY/$CREATE_REPO_SCRIPT $SOURCE_REPOSITORY
 
-    exec_container_root "echo 'deb [trusted=yes] file://$SOURCE_REPOSITORY/ /' >/etc/apt/sources.list.d/localrepo.list"
-    exec_container_root "printf 'Package: *\nPin: release o=local\nPin-Priority: 2000' >/etc/apt/preferences.d/localrepo.pref"
+    exec_container_root "echo 'deb [trusted=yes] file://$SOURCE_REPOSITORY/ /' > /etc/apt/sources.list.d/localrepo.list"
+    exec_container_root "printf 'Package: *\nPin: release o=local\nPin-Priority: 2000' > /etc/apt/preferences.d/localrepo.pref"
 }
 
 clean () {
@@ -662,9 +661,7 @@ check_for_container_network() {
     NETWORK_UP=0
     for i in `seq 1 10`
     do
-        if lxc query "/1.0/containers/${LXD_CONTAINER}/state" | \
-                jq -e '.network.eth0.addresses | any( .family == "inet" )' \
-                > /dev/null 2>&1 ; then
+        if lxc query "/1.0/containers/${LXD_CONTAINER}/state" | jq -e '.network.eth0.addresses | any( .family == "inet" )' > /dev/null 2>&1 ; then
             NETWORK_UP=1
             break
         fi
@@ -765,7 +762,7 @@ deploy_to_device () {
     fi;
 
     # setup sudo on device
-    exec_device "printf '#\041/bin/sh\necho $DEVICE_PASSWORD' >/tmp/askpass.sh"
+    exec_device "printf '#\041/bin/sh\necho $DEVICE_PASSWORD' > /tmp/askpass.sh"
     exec_device chmod +x /tmp/askpass.sh
 
     # check password is correct
@@ -821,10 +818,11 @@ if stat --file-system $HOME | grep ecrypt ; then
 fi
 
 if [ -e "/snap/bin/lxc" ]; then
+    echo "Force privileged container"
     FORCE_PRIVILEGED=1
 fi
 
-if ! which lxd > /dev/null ; then
+if ! which lxd > /dev/null 2>&1 ; then
     echo -e "${POSITIVE_COLOR}$PROGRAM_NAME uses LXD to download dependencies and build.${NC}"
     echo -e -n "${POSITIVE_COLOR}Would you like to install LXD? (y/n) ${NC}"
     read REPLY
@@ -835,8 +833,8 @@ if ! which lxd > /dev/null ; then
         sudo apt-get install -y lxd lxd-client
         setup_lxd
         ensure_lxd_subuid
-        newgrp lxd
-	    sudo usermod -a -G lxd $(whoami)
+        echo "Adding user to lxd group"
+        sudo usermod -a -G lxd $(whoami)
         echo -e "${ERROR_COLOR}LXD is now setup but will only work after you restart your computer.${NC}"
         exit 0
     else
@@ -912,7 +910,7 @@ while [ "$1" != "" ]; do
             *)
                 display_help
                 echo ""
-                echo -e "${ERROR_COLOR}error: unknown option: $OPTION${NC}"
+                echo -e "${ERROR_COLOR}Error: unknown option: $OPTION${NC}"
                 exit 1
             ;;
             esac
@@ -1148,7 +1146,7 @@ else
         *)
             display_help
             echo ""
-            echo -e "${ERROR_COLOR}error: unknown command: $COMMAND${NC}"
+            echo -e "${ERROR_COLOR}Error: unknown command: $COMMAND${NC}"
             exit 1
         ;;
     esac