Merge pull request #1294 from jooola/feat/format_shell_scripts

Format and check shell scripts

.github/scripts/install-bionic.sh

@@ -25,5 +25,5 @@ apt-get install -y gstreamer1.0-plugins-base \
   libcairo2-dev
 
 # Making log directory for PHP tests
-mkdir -p $LIBRETIME_LOG_DIR
+mkdir -p "$LIBRETIME_LOG_DIR"
-chown runner:runner $LIBRETIME_LOG_DIR
+chown runner:runner "$LIBRETIME_LOG_DIR"

.github/scripts/install-xenial.sh

@@ -25,5 +25,5 @@ apt-get install -y gstreamer1.0-plugins-base \
   libcairo2-dev
 
 # Making log directory for PHP tests
-mkdir -p $LIBRETIME_LOG_DIR
+mkdir -p "$LIBRETIME_LOG_DIR"
-chown runner:runner $LIBRETIME_LOG_DIR
+chown runner:runner "$LIBRETIME_LOG_DIR"

.github/scripts/python-pkg-install.sh

@@ -1,10 +1,10 @@
 #!/usr/bin/env bash
 
 echo "::group::Install Python apps"
-for app in $(ls python_apps); do
+for app in python_apps/*; do
-  if [[ -f "python_apps/$app/requirements-dev.txt" ]]; then
+  if [[ -f "$app/requirements-dev.txt" ]]; then
-    pip3 install -r "python_apps/$app/requirements-dev.txt"
+    pip3 install -r "$app/requirements-dev.txt"
   fi
-  pip3 install -e "python_apps/$app"
+  pip3 install -e "$app"
 done
 echo "::endgroup::"

.github/scripts/python-pkg-test.sh

@@ -14,7 +14,7 @@ if ! make -C python_apps/api_clients test; then
 fi
 echo "::endgroup::"
 
-if [[ "$failed" = "true" ]]; then
+if [[ $failed == "true" ]]; then
   echo "Python tests failed"
   exit 1
 fi

.github/scripts/release.sh

@@ -17,10 +17,8 @@ if [ $# == 0 ]; then
     exit 1
 elif [ $# == 1 ]; then
     suffix=$1
-    version=$1
 else
     suffix=$1-$2
-    version=$1
 fi
 
 echo "Creating tarball for LibreTime ${suffix}."
@@ -41,9 +39,9 @@ echo " Done"
 #echo "Done"
 
 cd ..
-find libretime-${suffix} -type f -exec dos2unix {} \;
+find "libretime-${suffix}" -type f -exec dos2unix {} \;
 echo -n "Creating tarball..."
-tar -czf libretime-${suffix}.tar.gz \
+tar -czf "libretime-${suffix}.tar.gz" \
         --owner=root --group=root \
         --exclude-vcs \
         --exclude .zfproject.xml \

.github/workflows/test.yml

@@ -25,6 +25,27 @@ jobs:
       - uses: actions/setup-python@v2
       - uses: pre-commit/action@v2.0.3
 
+  check-shell:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+      - run: |
+          python -m venv venv && source venv/bin/activate
+          pip install gh-release-install
+
+          sudo venv/bin/gh-release-install \
+            koalaman/shellcheck \
+            shellcheck-{tag}.linux.x86_64.tar.xz --extract shellcheck-{tag}/shellcheck \
+            /usr/bin/shellcheck
+
+          sudo venv/bin/gh-release-install \
+            mvdan/sh \
+            shfmt_{tag}_linux_amd64 \
+            /usr/bin/shfmt
+
+      - run: SEVERITY=warning make shell-check
+
   test:
     strategy:
       matrix:

Makefile

@@ -0,0 +1,16 @@
+.PHONY: setup
+
+SHELL = bash
+
+all: setup
+
+setup:
+	command -v pre-commit > /dev/null && pre-commit install
+
+# https://google.github.io/styleguide/shellguide.html
+shell-format:
+	shfmt -f . | xargs shfmt -i 2 -ci -sr -kp -w
+
+shell-check:
+	shfmt -f . | xargs shfmt -i 2 -ci -sr -kp -d
+	shfmt -f . | xargs shellcheck --color=always --severity=$${SEVERITY:-style}

airtime_mvc/tests/runtests.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 #Create a RabbitMQ airtime_tests user
 #This is necessary for tests to run
@@ -29,9 +29,8 @@ export RABBITMQ_VHOST
 export AIRTIME_UNIT_TEST="1"
 
 #Change the working directory to this script's directory
-DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" && pwd)"
-cd $DIR
+cd "$DIR" || (echo "could not cd in $DIR!" && exit 1)
 
 #Run the unit tests
 phpunit --verbose --log-junit test_results.xml
-

build.sh

@@ -1,4 +1,7 @@
-#!/bin/bash -e
+#!/usr/bin/env bash
+
+set -e # Exit if any of the steps fails.
+
 composer install --no-dev --no-interaction
 
 git_build=""
@@ -8,13 +11,13 @@ if [ -d .git ]; then
 fi
 
 if [ "${git_build}" = "y" ]; then
-    git_version=`git tag --points-at HEAD`
+  git_version=$(git tag --points-at HEAD)
   echo " * Version from tag: ${git_version}"
   if [ "${git_version}" = "" ]; then
-        git_version=`git rev-parse --short HEAD`
+    git_version=$(git rev-parse --short HEAD)
     echo " * Overriding empty version with sha1 commit-ish: ${git_version}"
   fi
-    echo ${git_version} > VERSION
+  echo "${git_version}" > VERSION
 else
   # if no file was in tarball we create one letting the user know
   # if you run in to this you should grab an enriched tarball built

dev_tools/bootstrap_development_environment.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Set up 3 way PO file merging, which we need for non-mainline branches
 cp scripts/git-merge-po /usr/local/bin

dev_tools/liquidsoap_compile/liquidsoap-compile.sh

@@ -1,9 +1,12 @@
-#!/bin/bash -e
+#!/usr/bin/env bash
+
+set -e
+
 apt-get install -y --force-yes lsb-release sudo
-dist=`lsb_release -is`
+dist=$(lsb_release -is)
-code=`lsb_release -cs`
+code=$(lsb_release -cs)
-cpu=`getconf LONG_BIT`
+# cpu=$(getconf LONG_BIT)
-cpuvalue=
+# cpuvalue=
 
 #enable apt.sourcefabric.org source
 set +e
@@ -17,8 +20,6 @@ apt-get update
 apt-get -y --force-yes install sourcefabric-keyring
 apt-get update
 
-
-
 if [ "$dist" = "Ubuntu" ]; then
   set +e
   grep -E "deb http://ca.archive.ubuntu.com/ubuntu/ $code multiverse" /etc/apt/sources.list
@@ -31,7 +32,7 @@ if [ "$dist" = "Ubuntu" ]; then
 fi
 
 #enable squeeze backports to get lame packages
-if [ "$dist" = "Debian" -a "$code" = "squeeze" ]; then
+if [[ "$dist" == "Debian" && "$code" == "squeeze" ]]; then
   set +e
   grep -E "deb http://backports.debian.org/debian-backports squeeze-backports main" /etc/apt/sources.list
   returncode=$?
@@ -41,12 +42,12 @@ if [ "$dist" = "Debian" -a "$code" = "squeeze" ]; then
   fi
 fi
 
-echo "System is $cpu bit..."
+# echo "System is $cpu bit..."
-if [ "$cpu" = "64" ]; then
+# if [ "$cpu" = "64" ]; then
-    cpuvalue="amd64"
+#   cpuvalue="amd64"
-else
+# else
-    cpuvalue="i386"
+#   cpuvalue="i386"
-fi
+# fi
 
 apt-get update
 apt-get -o Dpkg::Options::="--force-confold" upgrade
@@ -62,11 +63,11 @@ apt-get -y --force-yes install libopus0 libopus-dev libopus-dbg libopus-doc
 #obsoleted code end
 
 apt-get -y --force-yes install git-core ocaml-findlib libao-ocaml-dev \
-libportaudio-ocaml-dev libmad-ocaml-dev libtaglib-ocaml-dev libalsa-ocaml-dev \
+  libportaudio-ocaml-dev libmad-ocaml-dev libtaglib-ocaml-dev libalsa-ocaml-dev \
-libvorbis-ocaml-dev libladspa-ocaml-dev libxmlplaylist-ocaml-dev libflac-dev \
+  libvorbis-ocaml-dev libladspa-ocaml-dev libxmlplaylist-ocaml-dev libflac-dev \
-libxml-dom-perl libxml-dom-xpath-perl patch autoconf libmp3lame-dev \
+  libxml-dom-perl libxml-dom-xpath-perl patch autoconf libmp3lame-dev \
-libcamomile-ocaml-dev libcamlimages-ocaml-dev libtool libpulse-dev camlidl \
+  libcamomile-ocaml-dev libcamlimages-ocaml-dev libtool libpulse-dev camlidl \
-libfaad-dev libpcre-ocaml-dev libfftw3-3 dialog
+  libfaad-dev libpcre-ocaml-dev libfftw3-3 dialog
 
 if [ "$code" != "lucid" ]; then
   apt-get -y --force-yes install libvo-aacenc-dev

dev_tools/liquidsoap_compile/run.sh

@@ -1,11 +1,11 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 exec 2>&1
 
 ROOT_UID="0"
 
 #Check if run as root
-if [ "$UID" -ne "$ROOT_UID" ] ; then
+if [ "$UID" -ne "$ROOT_UID" ]; then
   echo "You must have 'sudo' right to do that!"
   exit 1
 fi
@@ -13,7 +13,7 @@ fi
 rm -rf ./liquidsoap-compile_logs
 mkdir -p ./liquidsoap-compile_logs
 
-showhelp () {
+showhelp() {
   echo "Usage: run.sh [options] [parameters]
 -c all|ubuntu_lucid_32    Compile liquidsoap on all platforms or specified platform.
 -b all|ubuntu_lucid_32    Build shroot environments for all platforms or specified platform.
@@ -21,20 +21,20 @@ showhelp () {
   exit 0
 }
 
-build_env () {
+build_env() {
-    if [ $sudo_user = "-1" ];then
+  if [ $sudo_user = "-1" ]; then
     echo "Please use -u to assign sudo username before build environments."
     exit 1
   fi
 
   echo "build_env $1"
   #exec > >(tee ./liquidsoap_compile_logs/build_env_$1.log)
-    os=`echo $1 | awk '/(debian)/'`
+  os=$(echo $1 | awk '/(debian)/')
-    cpu=`echo $1 | awk '/(64)/'`
+  cpu=$(echo $1 | awk '/(64)/')
-    dist=`echo $1 | awk -F "_" '{print $2}'`
+  dist=$(echo $1 | awk -F "_" '{print $2}')
 
   rm -f /etc/schroot/chroot.d/$1.conf
-    if cat /etc/passwd | awk -F:'{print $1}' | grep "tmp" >/dev/null 2>&1;then
+  if cat /etc/passwd | awk -F:'{print $1}' | grep "tmp" > /dev/null 2>&1; then
     echo "User tmp exists."
   else
     useradd tmp
@@ -53,8 +53,8 @@ build_env () {
   mkdir -p /srv/chroot/$1
 
   #cp liquidsoap_compile.sh /srv/chroot/$1/
-    if [ "$os" = "" ];then
+  if [ "$os" = "" ]; then
-       if [ "$cpu" = "" ];then
+    if [ "$cpu" = "" ]; then
       echo "debootstrap --variant=buildd --arch=i386 $dist /srv/chroot/$1 http://archive.ubuntu.com/ubuntu/"
       debootstrap --variant=buildd --arch=i386 $dist /srv/chroot/$1 http://archive.ubuntu.com/ubuntu/
     else
@@ -62,7 +62,7 @@ build_env () {
       debootstrap --variant=buildd --arch=amd64 $dist /srv/chroot/$1 http://archive.ubuntu.com/ubuntu/
     fi
   else
-       if [ "$cpu" = "" ];then
+    if [ "$cpu" = "" ]; then
       echo "debootstrap --variant=buildd --arch=i386 $dist /srv/chroot/$1 http://ftp.debian.com/debian/"
       debootstrap --variant=buildd --arch=i386 $dist /srv/chroot/$1 http://ftp.debian.com/debian/
     else
@@ -73,16 +73,16 @@ build_env () {
 
 }
 
-compile_liq () {
+compile_liq() {
   echo "complie_liq $1"
   #exec > >(tee ./liquidsoap_compile_logs/compile_liq_$1.log)
-    binfilename=`echo $1 | sed -e 's/ubuntu/liquidsoap/g' -e 's/debian/liquidsoap/g' -e 's/32/i386/g' -e 's/64/amd64/g'`
+  binfilename=$(echo $1 | sed -e 's/ubuntu/liquidsoap/g' -e 's/debian/liquidsoap/g' -e 's/32/i386/g' -e 's/64/amd64/g')
   rm -f /srv/chroot/$1/liquidsoap-compile.sh
   rm -f /srv/chroot/$1/liquidsoap
   cp liquidsoap-compile.sh /srv/chroot/$1/
   schroot -c $1 -u root -d / -- /liquidsoap-compile.sh
   cp /srv/chroot/$1/liquidsoap ./$binfilename
-    if [ $? = 0 ];then
+  if [ $? = 0 ]; then
     echo "$binfilename is generated successfully"
   else
     mv ./liquidsoap-compile_logs/compile_liq_$1.log ./liquidsoap-compile_logs/fail_to_compile_liq_$1.log
@@ -96,34 +96,30 @@ flag=
 os=
 sudo_user="-1"
 
-if [ x$1 = x ];then
+if [ x$1 = x ]; then
   showhelp
 fi
 
-while getopts b:c:u: arg
+while getopts b:c:u: arg; do
-do
   case $arg in
     b)
-	    if [ "$OPTARG" = "all" ];then
+      if [ "$OPTARG" = "all" ]; then
         echo "Building all platforms on server..."
-                for i in $(seq 0 $(($num -1)));
+        for i in $(seq 0 $((num - 1))); do
-                do
           build_env ${os_versions[$i]} | tee ./liquidsoap-compile_logs/build_env_${os_versions[$i]}.log
         done
       else
         flag=1
-		for i in $(seq 0 $(($num -1)));
+        for i in $(seq 0 $((num - 1))); do
-		do
+          if [ "$OPTARG" = ${os_versions[$i]} ]; then
-		    if [ "$OPTARG" = ${os_versions[$i]} ];then
             echo "Building platform: $OPTARG ..."
             build_env ${os_versions[$i]} | tee ./liquidsoap-compile_logs/build_env_${os_versions[$i]}.log
             flag=0
           fi
         done
-	        if [ $flag = 1 ];then
+        if [ $flag = 1 ]; then
           echo "Unsupported Platform from:"
-                    for j in "${os_versions[@]}"
+          for j in "${os_versions[@]}"; do
-                    do
             echo $j
           done
           exit 1
@@ -131,27 +127,24 @@ do
       fi
       ;;
     c)
-	     if [ "$OPTARG" = "all" ];then
+      if [ "$OPTARG" = "all" ]; then
         echo "Compiling liquidsoap for all platforms on server..."
-                 for i in $(seq 0 $(($num -1)))
+        for i in $(seq 0 $((num - 1))); do
-                 do
           compile_liq ${os_versions[$i]} | tee ./liquidsoap-compile_logs/compile_liq_${os_versions[$i]}.log
         done
 
       else
         flag=1
-                 for i in $(seq 0 $(($num -1)));
+        for i in $(seq 0 $((num - 1))); do
-                 do
+          if [ "$OPTARG" = ${os_versions[$i]} ]; then
-                     if [ "$OPTARG" = ${os_versions[$i]} ];then
             echo "Compiling liquidsoap for platform: $OPTARG ..."
             compile_liq ${os_versions[$i]} | tee ./liquidsoap-compile_logs/compile_liq_${os_versions[$i]}.log
             flag=0
           fi
         done
-                 if [ $flag = 1 ];then
+        if [ $flag = 1 ]; then
           echo "Unsupported Platform from:"
-                     for k in "${os_versions[@]}"
+          for k in "${os_versions[@]}"; do
-                     do
             echo $k
           done
           exit 1

dev_tools/postCommitBuildTrigger.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # the base url of the bamboo server
 baseurl="$1/updateAndBuild.action?buildKey="
@@ -10,7 +10,7 @@ baseurl="$1/updateAndBuild.action?buildKey="
 # Moves to the 2nd param (first is URL)
 shift
 # Loop for each build key
-while (( "$#" )); do
+while (("$#")); do
 
   #
   # Invoke the trigger
@@ -21,5 +21,4 @@ while (( "$#" )); do
   shift
 done
 
-
 exit 0

dev_tools/propel_regenerate.sh

@@ -1,11 +1,14 @@
-#!/bin/bash -e
+#!/usr/bin/env bash
-# Absolute path to this script
-SCRIPT=`readlink -f $0`
-# Absolute directory this script is in
-SCRIPTPATH=`dirname $SCRIPT`
 
-cd $SCRIPTPATH/../airtime_mvc/
+set -e
-path=`pwd`
+
+# Absolute path to this script
+SCRIPT=$(readlink -f "$0")
+# Absolute directory this script is in
+SCRIPTPATH=$(dirname "$SCRIPT")
+
+cd "$SCRIPTPATH/../airtime_mvc/" || (echo "could not cd in $SCRIPTPATH/../airtime_mvc/" && exit 1)
+path=$(pwd)
 cd build
-sed -i s#"project\.home =.*$"#"project.home = $path"#g build.properties
+sed -i "s|\"project\.home =.*$\"|\"project.home = $path\"|g" build.properties
 ../../vendor/propel/propel1/generator/bin/propel-gen

dev_tools/release/release.sh

@@ -1,4 +1,6 @@
-#!/bin/bash -e
+#!/usr/bin/env bash
+
+set -e
 
 #release.sh 1.8.2
 #creates a libretime folder with a "1.8.2" suffix
@@ -17,13 +19,13 @@ if [ $# == 0 ]; then
   exit
 elif [ $# == 1 ]; then
   suffix=$1
-    version=$1
+  # version=$1
 else
   suffix=$1-$2
-    version=$1
+  # version=$1
 fi
 
-dir=$(dirname $(readlink -f $0))
+# dir=$(dirname "$(readlink -f "$0")")
 gitrepo=$(readlink -f ./../../)
 
 echo "Creating tarball for LibreTime ${suffix}."
@@ -78,5 +80,4 @@ tar -czf $target_file \
 echo " Done"
 popd
 
-
 echo "Output file available at $target_file"

dev_tools/scripts/git-merge-po

@@ -22,7 +22,8 @@
 #
 # - When merging branches, conflicts in PO files will be marked with "#-#-#-#"
 #
-O=$1
+
+# O=$1
 A=$2
 B=$3
 

dev_tools/toggle-pypo-debug.sh

@@ -1,10 +1,10 @@
-#!/bin/bash
+#!/usr/bin/env bash
 if [[ $EUID -ne 0 ]]; then
   echo "This script must be run as root." 1>&2
   exit 1
 fi
 
-usage () {
+usage() {
   echo "Use --enable <user> or --disable flag. Enable is to set up environment"
   echo "for specified user. --disable is to reset it back to pypo user"
 }
@@ -30,7 +30,6 @@ elif [ "$1" = "--disable" ]; then
   chown -Rv $user:$user /var/tmp/airtime/pypo/
   chmod -v a+r /etc/airtime/api_client.cfg
 
-
   /etc/init.d/airtime-playout stop-liquidsoap
   /etc/init.d/airtime-playout start
 else

dev_tools/update_po_files.sh

@@ -4,8 +4,8 @@ cd ..
 
 #generate a new .po file
 #this will generate a file called messages.po
-find airtime_mvc -iname "*.phtml" -o -name "*.php" | xargs xgettext -L php --from-code=UTF-8
+find airtime_mvc -print0 -iname "*.phtml" -o -name "*.php" | xargs xgettext -L php --from-code=UTF-8
-find airtime_mvc -iname "*.phtml" -o -name "*.php" | xargs xgettext -L php --from-code=UTF-8 -k --keyword=_pro:1 -d pro --force-po
+find airtime_mvc -print0 -iname "*.phtml" -o -name "*.php" | xargs xgettext -L php --from-code=UTF-8 -k --keyword=_pro:1 -d pro --force-po
 
 #merge the new messages from messages.po into each existing .po file
 #this will generate new .po files

install

@@ -1,17 +1,16 @@
-#!/bin/bash -e
+#!/usr/bin/env bash
 
-#-e Causes bash script to exit if any of the installers
+set -e # Exit if any of the steps fails.
-#return with a non-zero return value.
 
 if [[ $EUID -ne 0 ]]; then
   echo "Please run as root user."
   exit 1
 fi
 
-SCRIPT_DIR="$( cd "$( dirname "$0" )" && pwd )"
+SCRIPT_DIR="$( cd "$( dirname "$0")" && pwd)"
 AIRTIMEROOT=${SCRIPT_DIR}
 
-showhelp () {
+showhelp() {
     echo "Usage: sudo bash install [options]
     -h, --help, -?
                 Display usage information
@@ -57,12 +56,11 @@ showhelp () {
                 Skips all postgres related install tasks (Useful if you configure
                 postgresql as part of another script / docker builds)
     --no-rabbitmq
-                Skips all rabbitmq related install tasks.
+                Skips all rabbitmq related install tasks."
-                "
     exit 0
 }
 
-showversion () {
+showversion() {
   if [ ! -f "$SCRIPT_DIR/VERSION" ]; then
     echo "Please initialize LibreTime by running ./build.sh"
     exit 1
@@ -112,16 +110,16 @@ function loud() {
 function loudCmd() {
   if [[ ${_q} -eq 0 ]]; then
     verbose "$@"
-        eval $@
+    eval "$@"
   else
-        eval $@ > /dev/null
+    eval "$@" > /dev/null
   fi
 }
 
 function checkCommandExists() {
   set +e
-    command=$@
+  command="$1"
-    eval hash ${command} 2>/dev/null
+  eval hash "${command}" 2> /dev/null
   commandFound=$?
   if [[ ! ${commandFound} -eq 0 ]]; then
     echo -e "Error: ${command} not found. Please ensure you have the corresponding dependency installed."
@@ -151,15 +149,25 @@ function systemInitDetect() {
   # Get package of PID=1 path as it identifies the init system.
   # Allow this to fail, at least then the init system can be guessed from the
   # PID 1 executable alone
-    pid_1_package=$(dpkg -S $pid_1_path 2>/dev/null ||
+  pid_1_package=$(dpkg -S "$pid_1_path" 2> /dev/null ||
-                    rpm --qf '%{name}\n' -qf $pid_1_path 2>/dev/null ||
+    rpm --qf '%{name}\n' -qf "$pid_1_path" 2> /dev/null ||
     echo "unknown")
   verbose "Detected package name for PID=1 process: $pid_1_package"
   case "${pid_1_package}:${pid_1_path}" in
-      *systemd*) has_systemd_init=true; verbose "Detected init system type: systemd" ;;
+    *systemd*)
-      *upstart*) has_upstart_init=true; verbose "Detected init system type: Upstart" ;;
+      has_systemd_init=true
-      *sysvinit*) has_systemv_init=true; verbose "Detected init system type: System V" ;;
+      verbose "Detected init system type: systemd"
-      *) echo "ERROR: Unable to detect init system using package or path of PID=1 process!" >&2
+      ;;
+    *upstart*)
+      has_upstart_init=true
+      verbose "Detected init system type: Upstart"
+      ;;
+    *sysvinit*)
+      has_systemv_init=true
+      verbose "Detected init system type: System V"
+      ;;
+    *)
+      echo "ERROR: Unable to detect init system using package or path of PID=1 process!" >&2
       exit 1
       ;;
   esac
@@ -176,6 +184,7 @@ function systemInitDetect() {
 function systemInitInstall() {
   local service_name="$1"
   local user="$2"
+  # shellcheck disable=SC2034
   local source_base_path=""
   local source_path=""
   local target_path=""
@@ -189,26 +198,26 @@ function systemInitInstall() {
       libretime-analyzer)
         source_path="${python_source_path}/airtime_analyzer/install/systemd/${service_name}.service"
         target_path="/etc/systemd/system/${service_name}.service"
-                alt_path=$(echo $target_path | sed 's/libretime-/airtime_/')
+        alt_path="${target_path//libretime-/airtime_}"
         ;;
       libretime-celery)
         source_path="${python_source_path}/airtime-celery/install/systemd/${service_name}.service"
         target_path="/etc/systemd/system/${service_name}.service"
-                alt_path=$(echo $target_path | sed 's/libretime-/airtime-/')
+        alt_path="${target_path//libretime-/airtime-}"
         ;;
-            libretime-liquidsoap|libretime-playout)
+      libretime-liquidsoap | libretime-playout)
         source_path="${python_source_path}/pypo/install/systemd/${service_name}.service"
         target_path="/etc/systemd/system/${service_name}.service"
-                alt_path=$(echo $target_path | sed 's/libretime-/airtime-/')
+        alt_path="${target_path//libretime-/airtime-}"
         ;;
       libretime-api)
         source_path="${SCRIPT_DIR-$PWD}/api/install/systemd/${service_name}.service"
         target_path="/etc/systemd/system/${service_name}.service"
-                alt_path=$(echo $target_path | sed 's/libretime-/airtime-/')
+        alt_path="${target_path//libretime-/airtime-}"
         ;;
     esac
     if [[ ! -e $source_path ]]; then
-            echo "$0:${FUNCNAME}(): ERROR: service \"$service_name\" with source path \"$source_path\" does not exist!" >&2
+      echo "$0:${FUNCNAME[0]}(): ERROR: service \"$service_name\" with source path \"$source_path\" does not exist!" >&2
       exit 1
     fi
     # Stop and disable the service if it already exists
@@ -220,7 +229,8 @@ function systemInitInstall() {
     local old_style_unit_exists="f"
     # Migrate old style airtime unit exist if it exists
     if [[ -e $alt_path && ! -L $alt_path ]]; then
-            local old_service=$(echo $service_name | sed 's/libretime/airtime/' | sed 's/-analyzer/_analyzer/')
+      local old_service
+      old_service=$(echo "$service_name" | sed 's/libretime/airtime/' | sed 's/-analyzer/_analyzer/')
       verbose "Old service $old_service already exists - migrating."
       loudCmd "systemctl disable ${old_service}.service"
       loudCmd "systemctl stop ${old_service}.service"
@@ -232,15 +242,15 @@ function systemInitInstall() {
       loudCmd "cp $source_path $target_path"
     else
       sed -e "s/User=.*/User=${user}/" \
-                -e "s/Group=.*/Group=${user}/" $source_path > $target_path
+        -e "s/Group=.*/Group=${user}/" "$source_path" > "$target_path"
     fi
     if [[ $old_style_unit_exists == "t" ]]; then
       verbose "Maintaining compatibility with old systemd unit names"
       # Alias to old Airtime names
       loudCmd "ln -s $source_path $alt_path"
     fi
-        chmod 0644 $target_path
+    chmod 0644 "$target_path"
-        chown root:root $target_path
+    chown root:root "$target_path"
     verbose "Service ${service_name} installed into ${target_path}"
     # Enable and start the service
     loudCmd "systemctl enable ${service_name}.service"
@@ -257,14 +267,14 @@ function systemInitInstall() {
         target_path="/etc/init/${service_name}.conf"
         user=""
         ;;
-            libretime-liquidsoap|libretime-playout)
+      libretime-liquidsoap | libretime-playout)
         source_path="${python_source_path}/pypo/install/upstart/${service_name}.conf.template"
         target_path="/etc/init/${service_name}.conf"
         user=${user:-$web_user}
         ;;
     esac
     if [[ ! -e $source_path ]]; then
-            echo "$0:${FUNCNAME}(): ERROR: service \"$service_name\" with source path \"$source_path\" does not exist!" >&2
+      echo "$0:${FUNCNAME[0]}(): ERROR: service \"$service_name\" with source path \"$source_path\" does not exist!" >&2
       exit 1
     fi
     # Stop the service if it already exists
@@ -277,10 +287,10 @@ function systemInitInstall() {
       loudCmd "cp $source_path $target_path"
     else
       sed -e "s/WEB_USER/${user}/g" \
-                -e "/^set[gu]id/{s/www-data/${user}/}" $source_path > $target_path
+        -e "/^set[gu]id/{s/www-data/${user}/}" "$source_path" > "$target_path"
     fi
-        chmod 0644 $target_path
+    chmod 0644 "$target_path"
-        chown root:root $target_path
+    chown root:root "$target_path"
     verbose "Service ${service_name} installed into ${target_path}"
     loudCmd "initctl check-config $service_name"
   elif $has_systemv_init; then
@@ -297,14 +307,14 @@ function systemInitInstall() {
         target_config_path="/etc/default/${service_name}"
         user=""
         ;;
-            libretime-liquidsoap|libretime-playout)
+      libretime-liquidsoap | libretime-playout)
         source_path="${python_source_path}/pypo/install/sysvinit/${service_name}"
         target_path="/etc/init.d/${service_name}"
         user=${user:-$web_user}
         ;;
     esac
     if [[ ! -e $source_path ]]; then
-            echo "$0:${FUNCNAME}(): ERROR: service \"$service_name\" with source path \"$source_path\" does not exist!" >&2
+      echo "$0:${FUNCNAME[0]}(): ERROR: service \"$service_name\" with source path \"$source_path\" does not exist!" >&2
       exit 1
     fi
     # Stop the service if it already exists
@@ -319,13 +329,13 @@ function systemInitInstall() {
         loudCmd "cp $source_config_path $target_config_path"
     else
       sed -e "/^USERID/{s/www-data/${user}/}" \
-                -e "/^GROUPID/{s/www-data/${user}/}" $source_path > $target_path
+        -e "/^GROUPID/{s/www-data/${user}/}" "$source_path" > "$target_path"
     fi
-        chmod 0644 $target_path
+    chmod 0644 "$target_path"
-        chown root:root $target_path
+    chown root:root "$target_path"
     if [[ -n $target_config_path ]]; then
-            chmod 0644 $target_config_path
+      chmod 0644 "$target_config_path"
-            chown root:root $target_config_path
+      chown root:root "$target_config_path"
     fi
     verbose "Service ${service_name} installed into ${target_path}"
     # Create symlinks for the appropriate runlevels
@@ -342,38 +352,41 @@ function systemInitInstall() {
 # Where _command_ is one of: start, stop, status, reload, restart
 #   enable, disable and either daemon-reload or reload-configuration.
 function systemInitCommand() {
-    local command=$1; shift
+  local command=$1
+  shift
   case "$command" in
-        start|stop|status|reload|restart)
+    start | stop | status | reload | restart)
       if $has_systemd_init; then
-                loudCmd "systemctl $command $@"
+        loudCmd "systemctl $command $*"
       elif $has_upstart_init; then
-                for svc_name in $@; do
+        for svc_name in "$@"; do
           loudCmd "service $svc_name $command"
         done
       elif $has_systemv_init; then
-                for svc_name in $@; do
+        for svc_name in "$@"; do
           loudCmd "invoke-rc.d $svc_name $command"
         done
       fi
       ;;
-        enable|disable)  # TODO: REMOVE
+    enable | disable) # TODO: REMOVE
       $has_systemd_init &&
         loudCmd "systemctl $command $1.service"
       if $has_systemv_init; then
-                if [[ "$command" = "enable" ]]
+        if [[ "$command" == "enable" ]]; then
-                then loudCmd "update-rc.d $1 defaults"
+          loudCmd "update-rc.d $1 defaults"
-                else loudCmd "update-rc.d $1 enable"
+        else
+          loudCmd "update-rc.d $1 enable"
         fi
       fi
       ;;
-        daemon-reload|reload-configuration)
+    daemon-reload | reload-configuration)
       $has_systemd_init &&
         loudCmd "systemctl daemon-reload"
       $has_upstart_init &&
         loudCmd "initctl reload-configuration"
       ;;
-        *) echo -e "$0:${FUNCNAME}(): ERROR: command \"$command\" is not supported!" >&2
+    *)
+      echo -e "$0:${FUNCNAME[0]}(): ERROR: command \"$command\" is not supported!" >&2
       exit 1
       ;;
   esac
@@ -391,7 +404,7 @@ while :; do
     --verbose)
       _v=1
       ;;
-        --quiet|--silent)
+    --quiet | --silent)
       _q=1
       ;;
     --force)
@@ -465,7 +478,7 @@ while :; do
       ;;
     --web-root)
       if [ "$2" ]; then
-                web_root=$(readlink -f $2)
+        web_root=$(readlink -f "$2")
         shift 2
         continue
       else
@@ -507,7 +520,7 @@ while :; do
     -?*)
       for ((i = 1; i < ${#1}; i++)); do
         case "${1:$i:1}" in
-                    h|\?)
+          h | \?)
             showhelp
             ;;
           V)
@@ -556,19 +569,21 @@ while :; do
             fi
             ;;
           *)
-                        echo "$0: error - unrecognized option '${1:$i:1}'" >&2;
+            echo "$0: error - unrecognized option '${1:i:1}'" >&2
             echo "Try 'install --help' for more information."
             exit 1
+            ;;
         esac
       done
       ;;
     *)
       break
+      ;;
   esac
   shift
 done
 
-if [ -z web_root -a ! -d web_root ]; then
+if [[ -z $web_root || ! -d $web_root ]]; then
   echo "$web_root doesn't exist!"
   exit 1
 fi
@@ -582,6 +597,7 @@ echo -e "        \/       \/            \/                  \/     \/\n"
 echo -e "Detecting distribution and release ..."
 if [ -e /etc/os-release ]; then
   # Access $ID, $VERSION_ID and $PRETTY_NAME
+  # shellcheck disable=SC1091
   source /etc/os-release
   echo "Detected distribution id: $ID"
   echo "Detected distribution release id: $VERSION_ID"
@@ -591,7 +607,7 @@ else
   VERSION_ID=unknown
   PRETTY_NAME="Unknown distribution and release"
   echo "WARNING: /etc/os-release configuration not found. Unable to detect distribution." >&2
-    if [ -z "$dist" -o -z "$code" ]; then
+  if [[ -z $dist || -z $code ]]; then
     echo "ERROR: One or both of --distribution and --release options were not specified." >&2
     echo "This is an unsupported distribution and/or version!" >&2
     exit 1
@@ -606,9 +622,16 @@ if [ -n "$dist" ]; then
   if [ "$dist" != "$ID" ]; then
     verbose "Detected distribution \"$ID\" does not match specified one of \"$dist\". Checking ..."
     case "$dist" in
-            centos|rhel)   pkg_installer=/usr/bin/yum; verbose "Detected yum package installer" ;;
+      centos | rhel)
-            debian|ubuntu) pkg_installer=/usr/bin/apt-get; verbose "Detected apt-get package installer" ;;
+        pkg_installer=/usr/bin/yum
-            *) echo "ERROR: the value \"$dist\" specified for --distribution is unsupported." >&2
+        verbose "Detected yum package installer"
+        ;;
+      debian | ubuntu)
+        pkg_installer=/usr/bin/apt-get
+        verbose "Detected apt-get package installer"
+        ;;
+      *)
+        echo "ERROR: the value \"$dist\" specified for --distribution is unsupported." >&2
         exit 1
         ;;
     esac
@@ -625,6 +648,7 @@ is_debian_buster=false
 is_ubuntu_dist=false
 is_ubuntu_bionic=false
 is_centos_dist=false
+# shellcheck disable=SC2034
 is_centos_7=false
 is_centos_8=false
 # Use specified distribution and release or detected otherwise.
@@ -638,44 +662,46 @@ case "${dist}-${code}" in
     is_ubuntu_dist=true
     is_ubuntu_bionic=true
     ;;
-    ubuntu-16.04|ubuntu-xenial|ubuntu-xenial_docker_minimal)
+  ubuntu-16.04 | ubuntu-xenial | ubuntu-xenial_docker_minimal)
     echo -e "ERROR: Ubuntu Xenial is archived and does not receive any security or other updates since 2021-04-01." >&2
     echo -e "The LibreTime installer dropped support for installing LibreTime on Xenial in 3.0.0-alpha.10." >&2
     exit 1
     ;;
-    debian-9|debian-stretch)
+  debian-9 | debian-stretch)
     echo -e "ERROR: Debian Stretch is archived and does not receive any security or other updates since 2020-06-06." >&2
     echo -e "The LibreTime installer dropped support for installing LibreTime on Stretch in 3.0.0-alpha.10." >&2
     exit 1
     ;;
-    debian-10|debian-buster)
+  debian-10 | debian-buster)
     code="buster"
     is_debian_dist=true
     is_debian_buster=true
     ;;
   #Fix for Raspbian 9 (stretch)
-    raspbian-9|9)
+  raspbian-9)
     echo -e "ERROR: Raspbian Stretch is archived and does not receive any security or other updates since 2020-06-06." >&2
     echo -e "The LibreTime installer dropped support for installing LibreTime on Stretch in 3.0.0-alpha.10." >&2
     exit 1
     ;;
   #End of fix
   #Fix for Raspbian 10 (buster)
-    raspbian-10|10)
+  raspbian-10)
     code="buster"
     dist="debian"
+    # shellcheck disable=SC2034
     is_debian_dist=true
     is_debian_buster=true
     ;;
   #End of fix
 
-    debian-8|debian-jessie)
+  debian-8 | debian-jessie)
     echo -e "ERROR: Debian Jessie is archived and does not receive any security or other updates since 2018-05-17." >&2
     echo -e "The LibreTime installer dropped support for installing LibreTime on Jessie in 3.0.0-alpha.8." >&2
     exit 1
     ;;
   centos-8)
     is_centos_dist=true
+    # shellcheck disable=SC2034
     is_centos_8=true
     ;;
   *)
@@ -738,7 +764,7 @@ fi
 
 # Check if composer exists and install if it doesn't
 set +e
-eval hash "composer" 2>/dev/null
+eval hash "composer" 2> /dev/null
 commandFound=$?
 set -e
 if [[ ! ${commandFound} -eq 0 ]]; then
@@ -785,8 +811,8 @@ will be moved to /etc/airtime/airtime.conf.tmp"
       rm -f /etc/apache2/sites-available/airtime.conf /etc/apache2/sites-enabled/airtime.conf
     fi
 
-        if [ -d /usr/share/airtime -a web_root = /usr/share/airtime ]; then
+    if [[ -d "/usr/share/airtime" && $web_root == "/usr/share/airtime" ]]; then
-            rm -rf /usr/share/airtime
+      rm -rf "/usr/share/airtime"
     fi
 
     mv /etc/airtime/airtime.conf /etc/airtime/airtime.conf.tmp
@@ -795,17 +821,17 @@ will be moved to /etc/airtime/airtime.conf.tmp"
 fi
 
 API2_APACHE_CONF=$(grep -F "ProxyPass" /etc/apache2/sites-available/airtime.conf || true)
-if [ -z "${API2_APACHE_CONF}" -a "$apache" = "t" ]; then
+if [[ -z "${API2_APACHE_CONF}" && "$apache" == "t" ]]; then
   # Remove Apache configuration so that the ProxyPass configuration for API 2.0
   # is installed
   rm -f /etc/apache2/sites-available/airtime.conf /etc/apache2/sites-enabled/airtime.conf
 fi
 
-if [ "$apache" = "f" -a ${_i} -eq 1 ]; then
+if [[ "$apache" = "f" && ${_i} -eq 1 ]]; then
   echo -e "Install default Airtime apache configuration? (Y/n): \c"
   read IN
   IN=${IN:-$default_value}
-    if [ "$IN" = "y" -o "$IN" = "Y" ]; then
+  if [[ "$IN" = "y" || "$IN" = "Y" ]]; then
     apache="t"
   fi
 fi
@@ -835,7 +861,7 @@ if [ "$apache" = "t" ]; then
   loud "                * Configuring Apache *                "
   loud "-----------------------------------------------------"
   # Detect Apache root folder, e.g. /etc/apache2 or /etc/httpd
-    eval $($apache_bin -V |awk '/HTTPD_ROOT|SERVER_CONFIG_FILE/ { print $2 }')
+  eval "$($apache_bin -V | awk '/HTTPD_ROOT|SERVER_CONFIG_FILE/ { print $2 }')"
   apache_conf="${HTTPD_ROOT}/${SERVER_CONFIG_FILE}"
   verbose "Detected Apache root folder is: ${HTTPD_ROOT}"
   if [[ ! -e $apache_conf ]]; then
@@ -855,7 +881,7 @@ if [ "$apache" = "t" ]; then
 
   set +e
   # Parse: Server version: Apache/2.2.22 (Ubuntu) -> 2
-    apache_major_version=$($apache_bin -v |awk -F'[ /.]+' 'NR == 1 { print $4 }')
+  apache_major_version=$($apache_bin -v | awk -F'[ /.]+' 'NR == 1 { print $4 }')
   set -e
 
   if [[ "$apache_major_version" -ge 2 ]]; then
@@ -870,7 +896,7 @@ if [ "$apache" = "t" ]; then
   # install apache, we should overwrite any existing configuration. If we don't do this, doing
   # an in-place installation over an old Airtime install (which installs to /usr/share by default)
   # will fail
-    if [ "$upgrade" = "t" -o ! -f ${apache_sitedir}${airtimeconfigfile} ]; then
+  if [[ "$upgrade" == "t" || ! -f "${apache_sitedir}${airtimeconfigfile}" ]]; then
     verbose "\n * Creating Apache config for Airtime..."
     listen_port=""
     if [ "$web_port" != "80" ]; then
@@ -903,11 +929,11 @@ if [ "$apache" = "t" ]; then
   fi
 fi
 
-if [ "$icecast" = "f" -a ${_i} -eq 1 ]; then
+if [[ "$icecast" == "f" && ${_i} -eq 1 ]]; then
   echo -e "Install default Airtime Icecast configuration? (Y/n): \c"
-    read IN
+  read -r IN
   IN=${IN:-$default_value}
-    if [ "$IN" = "y" -o "$IN" = "Y" ]; then
+  if [[ $IN == "y" || $IN == "Y" ]]; then
     icecast="t"
   fi
 fi
@@ -926,15 +952,15 @@ if [ "$icecast" = "t" ]; then
     icecast_unit_name="icecast"
     icecast_config="/etc/icecast.xml"
   fi
-    systemInitCommand enable ${icecast_unit_name}
+  systemInitCommand enable "${icecast_unit_name}"
   # only update icecast password if
   if [ ! -e "/etc/airtime/airtime.conf" ] && [ ! -e "/etc/airtime/airtime.conf.tmp" ]; then
-        icecast_pass=$(< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c${1:-12};)
+    icecast_pass=$(tr -dc _A-Z-a-z-0-9 < /dev/urandom | head -c"${1:-12}")
-        echo $icecast_pass > /tmp/icecast_pass
+    echo "$icecast_pass" > /tmp/icecast_pass
     loud "\n New install detected setting icecast password to random value."
-        xmlstarlet ed --inplace -u /icecast/authentication/source-password -v $icecast_pass $icecast_config
+    xmlstarlet ed --inplace -u /icecast/authentication/source-password -v "$icecast_pass" "$icecast_config"
-        xmlstarlet ed --inplace -u /icecast/authentication/relay-password -v $icecast_pass $icecast_config
+    xmlstarlet ed --inplace -u /icecast/authentication/relay-password -v "$icecast_pass" "$icecast_config"
-        xmlstarlet ed --inplace -u /icecast/authentication/admin-password -v $icecast_pass $icecast_config
+    xmlstarlet ed --inplace -u /icecast/authentication/admin-password -v "$icecast_pass" "$icecast_config"
   fi
   # restart in case icecast was already started (like is the case on debian)
   systemInitCommand restart ${icecast_unit_name}
@@ -958,7 +984,7 @@ verbose "...Done"
 verbose "\n * Creating /run/airtime..."
 mkdir -p /run/airtime
 chmod 755 /run/airtime
-chown -R ${web_user}:${web_user} /run/airtime
+chown -R "${web_user}:${web_user}" /run/airtime
 verbose "...Done"
 
 if [ ! -d /var/log/airtime ]; then
@@ -982,8 +1008,8 @@ verbose "\n * Installing pypo and liquidsoap..."
 loudCmd "$python_bin ${AIRTIMEROOT}/python_apps/pypo/setup.py install --install-scripts=/usr/bin --no-init-script"
 loudCmd "mkdir -p /var/log/airtime/{pypo,pypo-liquidsoap} /var/tmp/airtime/pypo/{cache,files,tmp} /var/tmp/airtime/show-recorder/"
 loudCmd "chown -R ${web_user}:${web_user} /var/log/airtime/{pypo,pypo-liquidsoap} /var/tmp/airtime/pypo/{cache,files,tmp} /var/tmp/airtime/show-recorder/"
-systemInitInstall libretime-liquidsoap $web_user
+systemInitInstall libretime-liquidsoap "$web_user"
-systemInitInstall libretime-playout $web_user
+systemInitInstall libretime-playout "$web_user"
 verbose "...Done"
 
 verbose "\n * Installing airtime-celery..."
@@ -1004,16 +1030,16 @@ verbose "...Done"
 
 verbose "\n * Installing libretime-analyzer..."
 loudCmd "$python_bin ${AIRTIMEROOT}/python_apps/airtime_analyzer/setup.py install --install-scripts=/usr/bin"
-systemInitInstall libretime-analyzer $web_user
+systemInitInstall libretime-analyzer "$web_user"
 verbose "...Done"
 
 verbose "\n * Installing API..."
 loudCmd "python3 ${AIRTIMEROOT}/api/setup.py install --install-scripts=/usr/bin"
-systemInitInstall libretime-api $web_user
+systemInitInstall libretime-api "$web_user"
 mkdir -p /etc/airtime
 sed -e "s@WEB_USER@${web_user}@g" \
   -e "s@WEB_ROOT@${web_root}@g" \
-    ${AIRTIMEROOT}/installer/uwsgi/libretime-api.ini > /etc/airtime/libretime-api.ini
+  "${AIRTIMEROOT}/installer/uwsgi/libretime-api.ini" > /etc/airtime/libretime-api.ini
 loudCmd "libretime-api collectstatic --clear --noinput"
 verbose "...Done"
 
@@ -1037,7 +1063,7 @@ php_conf_dirs=(
   "/etc/php5/apache2/conf.d"    # Debian Stretch, Debian Jessie, Ubuntu Trusty
   "/etc/php.d"                  # CentOS 7
 )
-for php_conf in ${php_conf_dirs[@]}; do
+for php_conf in "${php_conf_dirs[@]}"; do
   [[ -d $php_conf ]] && break
 done
 if [[ -d $php_conf ]]; then
@@ -1075,18 +1101,18 @@ if [ $skip_postgres -eq 0 ]; then
 
   setupAirtimePostgresUser() {
     # here-doc to execute this block as postgres user
-        su postgres <<'EOF'
+    su postgres << 'EOF'
-        set +e
+set +e
-        count=$(psql -d postgres -tAc "SELECT count(*) FROM pg_roles WHERE rolname='airtime';")
+count=$(psql -d postgres -tAc "SELECT count(*) FROM pg_roles WHERE rolname='airtime';")
-        if [[ $count -eq 0 ]]; then
+if [[ $count -eq 0 ]]; then
-            psql -d postgres -tAc "CREATE USER airtime WITH ENCRYPTED PASSWORD 'airtime'; ALTER USER airtime CREATEDB;"
+psql -d postgres -tAc "CREATE USER airtime WITH ENCRYPTED PASSWORD 'airtime'; ALTER USER airtime CREATEDB;"
-            [[ $? -eq 0 ]] &&
+[[ $? -eq 0 ]] &&
-                  echo "Created airtime user in PostgreSQL" ||
+echo "Created airtime user in PostgreSQL" ||
-                  echo "$0:${FUNCNAME}(): ERROR: Can't create airtime user in PostgreSQL!"
+echo "$0:${FUNCNAME}(): ERROR: Can't create airtime user in PostgreSQL!"
-        else
+else
-            echo "airtime user already exists in PostgreSQL"
+echo "airtime user already exists in PostgreSQL"
-        fi
+fi
-        set -e
+set -e
 # don't indent this!
 EOF
   }
@@ -1097,7 +1123,7 @@ EOF
     echo -e "Create default airtime postgres user? (Y/n): \c"
     read IN
     IN=${IN:-$default_value}
-        if [ "$IN" = "y" -o "$IN" = "Y" ]; then
+    if [[ "$IN" = "y" || "$IN" = "Y"  ]]; then
       setupAirtimePostgresUser
     fi
   fi
@@ -1112,7 +1138,7 @@ if [ $skip_rabbitmq -eq 0 ]; then
   RABBITMQ_VHOST=/airtime
   RABBITMQ_USER=airtime
   RABBITMQ_PASSWORD=airtime
-    EXCHANGES="airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor"
+  # EXCHANGES="airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor"
 
   # Ignore errors in this check to avoid dying when vhost isn't found
   set +e
@@ -1158,7 +1184,6 @@ if [ ! -d "/srv/airtime" ]; then
 fi
 chown -R ${web_user}:${web_user} /srv/airtime
 
-
 # We only generate the locales for Airtime if you're allowing us
 # to install our dependencies, so that we won't automatically do this
 # when this install script runs from our DEB package.
@@ -1172,14 +1197,14 @@ if [ "$ignore_dependencies" = "f" ]; then
   else
     set +e
     verbose "\n * Generating locales"
-        for i in `ls ${web_root}/../locale | grep ".._.."`; do
+    for locale_file in "${web_root}"/../locale/*_*; do
+      locale=$(basename "$locale_file")
       if [ "$dist" = "debian" ]; then
-                grep -qi "^$i" /etc/locale.gen
+        if ! grep -qi "^$locale" /etc/locale.gen; then
-                if [ $? -ne 0 ]; then
+          verbose "$locale.UTF-8 UTF-8" >> /etc/locale.gen
-                    verbose "$i.UTF-8 UTF-8" >> /etc/locale.gen
         fi
       else
-                loudCmd "locale-gen \"$i.utf8\""
+        loudCmd "locale-gen \"$locale.utf8\""
       fi
     done
     set -e
@@ -1210,7 +1235,7 @@ if $is_centos_dist; then
 else
   # not on centos
   ip_device="eth0"
-    IP=$(ifconfig ${ip_device} 2>/dev/null |awk -F'[ :]+' '/inet addr:/ {print $4}')
+  IP=$(ifconfig ${ip_device} 2> /dev/null | awk -F'[ :]+' '/inet addr:/ {print $4}')
 fi
 verbose "...Done"
 

installer/lxc-bootstrap

@@ -1,4 +1,6 @@
-#!/bin/bash -e
+#!/usr/bin/env bash
+
+set -e
 #-e Causes bash script to exit if any of the installers
 #return with a non-zero return value.
 
@@ -52,9 +54,9 @@ echo "...Done"
 
 IP=$(lxc-info -i -n ${name} -H)
 echo -e "\n * Opening ${name} in your browser..."
-if hash xdg-open 2>/dev/null; then
+if hash xdg-open 2> /dev/null; then
   xdg-open "http://${IP}/"
-elif hash gnome-open 2>/dev/null; then
+elif hash gnome-open 2> /dev/null; then
   gnome-open "http://${IP}/"
 fi
 echo "...Done"

installer/vagrant/centos.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Additional Repos
 yum install -y epel-release
@@ -58,7 +58,6 @@ su -l postgres bash -c 'createdb -O airtime airtime'
 echo "ALTER USER airtime WITH PASSWORD 'airtime';" | su -l postgres bash -c psql
 echo "GRANT ALL PRIVILEGES ON DATABASE airtime TO airtime;" | su -l postgres bash -c psql
 
-
 # RabbitMQ
 curl -s https://packagecloud.io/install/repositories/rabbitmq/rabbitmq-server/script.rpm.sh | sudo bash
 yum install -y rabbitmq-server
@@ -142,7 +141,6 @@ sed -i \
   -e 's/LoadModule mpm_event_module/#LoadModule mpm_event_module/' \
   /etc/httpd/conf.modules.d/00-mpm.conf
 
-
 # celery will not run unless we install a specific version (https://github.com/pypa/setuptools/issues/942)
 # this will need to be figured out later on and will get overridden by the docs installer anyhow :(
 pip3 install setuptools==33.1.1

installer/vagrant/debian.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 DEBIAN_FRONTEND=noninteractive apt-get -y install alsa-utils
 usermod -a -G audio vagrant

jekyll.sh

@@ -1,4 +1,4 @@
-#/bin/bash
+#!/usr/bin/env bash
 
 echo "Installing Ruby"
 apt-get update -y && apt-get install -y ruby-full build-essential zlib1g-dev
@@ -8,7 +8,7 @@ export PATH=".gems/bin:$PATH"
 
 echo "Installing Jekyll"
 
-cd docs
+cd docs || (echo "Could not cd in docs" && exit 1)
 gem install jekyll bundler
 
 # Running Jekyll

python_apps/airtime-celery/install/initd/libretime-celery

@@ -1,4 +1,7 @@
-#!/bin/sh -e
+#!/usr/bin/env bash
+
+set -e
+
 # ============================================
 #  celeryd - Starts the Celery worker daemon.
 # ============================================
@@ -8,7 +11,6 @@
 #
 # See http://docs.celeryproject.org/en/latest/tutorials/daemonizing.html#generic-init-scripts
 
-
 ### BEGIN INIT INFO
 # Provides:          celeryd
 # Required-Start:    $network $local_fs $remote_fs
@@ -30,7 +32,7 @@
 #
 VERSION=10.1
 echo "celery init v${VERSION}."
-if [ $(id -u) -ne 0 ]; then
+if [ "$(id -u)" -ne 0 ]; then
   echo "Error: This program can only be used by the root user."
   echo "       Unprivileged users must use the 'celery multi' utility, "
   echo "       or 'celery worker --detach'."
@@ -52,15 +54,19 @@ DEFAULT_PID_FILE="/var/run/celery/%n.pid"
 DEFAULT_LOG_FILE="/var/log/celery/%n.log"
 DEFAULT_LOG_LEVEL="INFO"
 DEFAULT_NODES="celery"
-DEFAULT_CELERYD="-m celery worker --detach"
+# DEFAULT_CELERYD="-m celery worker --detach"
 
 CELERY_DEFAULTS=${CELERY_DEFAULTS:-"/etc/default/${SCRIPT_NAME}"}
 # Make sure executable configuration script is owned by root
 _config_sanity() {
-    local path="$1"
+  local path
-    local owner=$(ls -ld "$path" | awk '{print $3}')
+  local owner
-    local iwgrp=$(ls -ld "$path" | cut -b 6)
+  local iwgrp
-    local iwoth=$(ls -ld "$path" | cut -b 9)
+  local iwoth
+  path="$1"
+  owner=$(ls -ld "$path" | awk '{print $3}')
+  iwgrp=$(ls -ld "$path" | cut -b 6)
+  iwoth=$(ls -ld "$path" | cut -b 9)
   if [ "$(id -u $owner)" != "0" ]; then
     echo "Error: Config script '$path' must be owned by root!"
     echo
@@ -98,6 +104,7 @@ _config_sanity() {
 if [ -f "$CELERY_DEFAULTS" ]; then
   _config_sanity "$CELERY_DEFAULTS"
   echo "Using config script: $CELERY_DEFAULTS"
+  # shellcheck disable=SC1090
   . "$CELERY_DEFAULTS"
 fi
 # Sets --app argument for CELERY_BIN
@@ -126,8 +133,8 @@ export CELERY_LOADER
 if [ -n "$2" ]; then
   CELERYD_OPTS="$CELERYD_OPTS $2"
 fi
-CELERYD_LOG_DIR=`dirname $CELERYD_LOG_FILE`
+CELERYD_LOG_DIR=$(dirname $CELERYD_LOG_FILE)
-CELERYD_PID_DIR=`dirname $CELERYD_PID_FILE`
+CELERYD_PID_DIR=$(dirname $CELERYD_PID_FILE)
 # Extra start-stop-daemon options, like user/group.
 if [ -n "$CELERYD_CHDIR" ]; then
   DAEMON_OPTS="$DAEMON_OPTS --workdir=$CELERYD_CHDIR"
@@ -177,7 +184,7 @@ create_paths() {
   create_default_dir "$CELERYD_PID_DIR"
 }
 export PATH="${PATH:+$PATH:}/usr/sbin:/sbin"
-_get_pidfiles () {
+_get_pidfiles() {
   # note: multi < 3.1.14 output to stderr, not stdout, hence the redirect.
   ${CELERYD_MULTI} expand "${CELERYD_PID_FILE}" ${CELERYD_NODES} 2>&1
 }
@@ -185,8 +192,10 @@ _get_pids() {
   found_pids=0
   my_exitcode=0
   for pidfile in $(_get_pidfiles); do
-        local pid=`cat "$pidfile"`
+    local pid
-        local cleaned_pid=`echo "$pid" | sed -e 's/[^0-9]//g'`
+    local cleaned_pid
+    pid=$(cat "$pidfile")
+    cleaned_pid=$(echo "$pid" | sed -e 's/[^0-9]//g')
     if [ -z "$pid" ] || [ "$cleaned_pid" != "$pid" ]; then
       echo "bad pid file ($pidfile)"
       one_failed=true
@@ -201,27 +210,27 @@ _get_pids() {
     fi
   done
 }
-_chuid () {
+_chuid() {
   su "$CELERYD_USER" -c "$CELERYD_MULTI $*"
 }
-start_workers () {
+start_workers() {
   if [ ! -z "$CELERYD_ULIMIT" ]; then
     ulimit $CELERYD_ULIMIT
   fi
-    _chuid $* start $CELERYD_NODES $DAEMON_OPTS     \
+  _chuid "$@" start $CELERYD_NODES $DAEMON_OPTS \
     --pidfile="$CELERYD_PID_FILE" \
     --logfile="$CELERYD_LOG_FILE" \
     --loglevel="$CELERYD_LOG_LEVEL" \
     $CELERY_APP_ARG \
     $CELERYD_OPTS
 }
-dryrun () {
+dryrun() {
   (C_FAKEFORK=1 start_workers --verbose)
 }
-stop_workers () {
+stop_workers() {
   _chuid stopwait $CELERYD_NODES --pidfile="$CELERYD_PID_FILE"
 }
-restart_workers () {
+restart_workers() {
   _chuid restart $CELERYD_NODES $DAEMON_OPTS \
     --pidfile="$CELERYD_PID_FILE" \
     --logfile="$CELERYD_LOG_FILE" \
@@ -232,11 +241,11 @@ restart_workers () {
 kill_workers() {
   _chuid kill $CELERYD_NODES --pidfile="$CELERYD_PID_FILE"
 }
-restart_workers_graceful () {
+restart_workers_graceful() {
   echo "WARNING: Use with caution in production"
   echo "The workers will attempt to restart, but they may not be able to."
   local worker_pids=
-    worker_pids=`_get_pids`
+  worker_pids=$(_get_pids)
   [ "$one_failed" ] && exit 1
   for worker_pid in $worker_pids; do
     local failed=
@@ -250,7 +259,7 @@ restart_workers_graceful () {
   done
   [ "$one_failed" ] && exit 1 || exit 0
 }
-check_status () {
+check_status() {
   my_exitcode=0
   found_pids=0
   local one_failed=
@@ -260,9 +269,12 @@ check_status () {
       one_failed=true
       break
     fi
-        local node=`basename "$pidfile" .pid`
+    local node
-        local pid=`cat "$pidfile"`
+    local pid
-        local cleaned_pid=`echo "$pid" | sed -e 's/[^0-9]//g'`
+    local cleaned_pid
+    node=$(basename "$pidfile" .pid)
+    pid=$(cat "$pidfile")
+    cleaned_pid=$(echo "$pid" | sed -e 's/[^0-9]//g')
     if [ -z "$pid" ] || [ "$cleaned_pid" != "$pid" ]; then
       echo "bad pid file ($pidfile)"
       one_failed=true
@@ -290,7 +302,7 @@ case "$1" in
     check_paths
     stop_workers
     ;;
-    reload|force-reload)
+  reload | force-reload)
     echo "Use restart"
     ;;
   status)

python_apps/airtime_analyzer/install/sysvinit/libretime-analyzer

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 ### BEGIN INIT INFO
 # Provides:          libretime-analyzer
@@ -20,6 +20,7 @@ PIDFILE=/var/run/$NAME.pid
 [ -x "$DAEMON" ] || exit 0
 
 # Read configuration variable file if it is present
+# shellcheck disable=SC1090
 [ -r /etc/default/$NAME ] && . /etc/default/$NAME
 
 # Load the VERBOSE setting and other rcS variables
@@ -30,12 +31,12 @@ PIDFILE=/var/run/$NAME.pid
 # and status_of_proc is working.
 . /lib/lsb/init-functions
 
-start () {
+start() {
   start-stop-daemon --start --background --quiet --chuid $USERID:$GROUPID \
     --make-pidfile --pidfile $PIDFILE --startas $DAEMON
 }
 
-stop () {
+stop() {
   # Send TERM after 5 seconds, wait at most 30 seconds.
   start-stop-daemon --stop --oknodo --retry TERM/5/0/30 --quiet --pidfile $PIDFILE
   rm -f $PIDFILE

python_apps/airtime_analyzer/tools/ftp-upload-hook.sh

@@ -1,4 +1,6 @@
-#!/bin/bash -xv
+#!/usr/bin/env bash
+
+set -xv
 
 post_file() {
   #kill process after 30 minutes (360*5=30 minutes)
@@ -15,14 +17,13 @@ post_file() {
   stripped_file_path=${file_path//','/''}
   mv "${file_path}" "${stripped_file_path}"
   file_path="${stripped_file_path}"
-    filename="${file_path##*/}"
+  # filename="${file_path##*/}"
 
   airtime_conf_path=/etc/airtime/airtime.conf
 
-
   #instance_path will look like 1/1384, for example
-    http_path=$(grep base_url ${airtime_conf_path} | awk '{print $3;}' )
+  http_path=$(grep base_url ${airtime_conf_path} | awk '{print $3;}')
-    http_port=$(grep base_port ${airtime_conf_path} | awk '{print $3;}' )
+  http_port=$(grep base_port ${airtime_conf_path} | awk '{print $3;}')
 
   #post request url - http://bananas.airtime.pro/rest/media, for example
   url=http://
@@ -31,14 +32,12 @@ post_file() {
   url+=$http_port
   url+=/rest/media
 
-
+  api_key=$(grep api_key ${airtime_conf_path} | awk '{print $3;}')
-    api_key=$(grep api_key ${airtime_conf_path} | awk '{print $3;}' )
 
   # -f is needed to make curl fail if there's an HTTP error code
   # -L is needed to follow redirects! (just in case)
-    until curl -fL --max-time 30 $url -u $api_key":" -X POST -F "file=@${file_path}"
+  until curl -fL --max-time 30 $url -u $api_key":" -X POST -F "file=@${file_path}"; do
-    do
+    retry_count=$((retry_count + 1))
-        retry_count=$[$retry_count+1]
     if [ $retry_count -ge $max_retry ]; then
       break
     fi

python_apps/airtime_analyzer/tools/test-hook-script.sh

@@ -8,9 +8,8 @@ post_file() {
   max_retry=10
   retry_count=0
 
-    until curl --max-time 30 http://localhost/rest/media -u 3188BDIMPJROQP89Z0OX: -X POST -F "file=@${file_path}" -F "name=${filename}"
+  until curl --max-time 30 http://localhost/rest/media -u 3188BDIMPJROQP89Z0OX: -X POST -F "file=@${file_path}" -F "name=${filename}"; do
-    do
+    retry_count=$((retry_count + 1))
-        retry_count=$[$retry_count+1]
     if [ $retry_count -ge $max_retry ]; then
       break
     fi

python_apps/pypo/install/sysvinit/libretime-liquidsoap

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 ### BEGIN INIT INFO
 # Provides:          airtime-liquidsoap
@@ -20,6 +20,7 @@ PIDFILE=/var/run/$NAME.pid
 [ -x "$DAEMON" ] || exit 0
 
 # Read configuration variable file if it is present
+# shellcheck disable=SC1090
 [ -r /etc/default/$NAME ] && . /etc/default/$NAME
 
 # Load the VERBOSE setting and other rcS variables
@@ -30,12 +31,12 @@ PIDFILE=/var/run/$NAME.pid
 # and status_of_proc is working.
 . /lib/lsb/init-functions
 
-start () {
+start() {
   start-stop-daemon --start --background --quiet --chuid $USERID:$GROUPID \
     --make-pidfile --pidfile $PIDFILE --startas $DAEMON
 }
 
-stop () {
+stop() {
   # Send TERM after 5 seconds, wait at most 30 seconds.
   start-stop-daemon --stop --oknodo --retry TERM/5/0/30 --quiet --pidfile $PIDFILE
   rm -f $PIDFILE

python_apps/pypo/install/sysvinit/libretime-playout

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 ### BEGIN INIT INFO
 # Provides:          airtime-playout
@@ -20,6 +20,7 @@ PIDFILE=/var/run/$NAME.pid
 [ -x "$DAEMON" ] || exit 0
 
 # Read configuration variable file if it is present
+# shellcheck disable=SC1090
 [ -r /etc/default/$NAME ] && . /etc/default/$NAME
 
 # Load the VERBOSE setting and other rcS variables
@@ -30,12 +31,12 @@ PIDFILE=/var/run/$NAME.pid
 # and status_of_proc is working.
 . /lib/lsb/init-functions
 
-start () {
+start() {
   start-stop-daemon --start --background --quiet --chuid $USERID:$GROUPID \
     --make-pidfile --pidfile $PIDFILE --startas $DAEMON
 }
 
-stop () {
+stop() {
   # Send TERM after 5 seconds, wait at most 30 seconds.
   start-stop-daemon --stop --oknodo --retry TERM/5/0/30 --quiet --pidfile $PIDFILE
   rm -f $PIDFILE

uninstall

@@ -1,6 +1,6 @@
-#!/bin/bash -e
+#!/usr/bin/env bash
-# -e Causes bash script to exit if any of the steps
+
-# return with a non-zero return value.
+set -e # Exit if any of the steps fails.
 
 if [[ $EUID -ne 0 ]]; then
   echo "Please run as root user."
@@ -8,27 +8,13 @@ if [[ $EUID -ne 0 ]]; then
 fi
 
 getStorDirFromDatabase() {
-    # here-doc to execute this block as postgres user
+  sudo -u postgres psql -d airtime -tAc "SELECT directory FROM cc_music_dirs WHERE type='stor'"
-    result=`su postgres <<'EOF'
-    set +e
-    echo $(psql -d airtime -tAc "SELECT directory FROM cc_music_dirs WHERE type='stor'")
-    set -e
-# don't indent this!
-EOF`
-    echo $result
 }
 
 dropLibreTimeDatabase() {
-    # here-doc to execute this block as postgres user
+  sudo -u postgres psql -d postgres -tAc "DROP DATABASE IF EXISTS airtime_test"
-    su postgres <<'EOF'
+  sudo -u postgres psql -d postgres -tAc "DROP DATABASE IF EXISTS airtime"
-    set +e
+  sudo -u postgres psql -d postgres -tAc "DROP USER IF EXISTS airtime"
-    # DROP DATABASE cannot be executed from a function or multi-command string
-    psql -d postgres -tAc "DROP DATABASE IF EXISTS airtime_test"
-    psql -d postgres -tAc "DROP DATABASE IF EXISTS airtime"
-    psql -d postgres -tAc "DROP USER IF EXISTS airtime"
-    set -e
-# don't indent this!
-EOF
 }
 
 removeRabbitmqLibreTimeSettings() {
@@ -44,9 +30,6 @@ removeRabbitmqLibreTimeSettings() {
   rabbitmqctl delete_user ${RMQ_USER}
 }
 
-SCRIPT_DIR="$( cd "$( dirname "$0" )" && pwd )"
-AIRTIMEROOT=${SCRIPT_DIR}
-
 STOR_DIR=$(getStorDirFromDatabase)
 
 FILES=(
@@ -60,11 +43,11 @@ FILES=(
   "/usr/bin/airtime*"
   "/etc/apache2/sites-available/airtime*"
   "/etc/apache2/sites-enabled/airtime*"
-    )
+)
 
 echo -e "The following files, directories, and services will be removed:\n"
 for i in ${FILES[*]}; do
-    echo $i
+  echo "$i"
 done
 echo "pip3 airtime-playout"
 
@@ -72,15 +55,15 @@ echo -e "\nIf your web root is not listed, you will need to manually remove it."
 
 echo -e "\nThis will *permanently* remove LibreTime and all related files from your computer. \
 Any files in LibreTime directories and subdirectories will be deleted. Are you sure you want to proceed? [y/N]: \c"
-read IN
+read -r IN
-if [[ ! ( "$IN" = "y" || "$IN" = "Y" ) ]]; then
+if [[ ! ($IN == "y" || $IN == "Y") ]]; then
   exit 0
 fi
 
 if [ -n "${STOR_DIR}" ]; then
   echo -e "\nDo you want to remove your music storage directory ${STOR_DIR} and all of its subdirectories? [y/N]: \c"
-    read IN
+  read -r IN
-    if [[ ( "$IN" = "y" || "$IN" = "Y" ) ]]; then
+  if [[ $IN == "y" || $IN == "Y" ]]; then
     rm -rf "${STOR_DIR}"
   fi
 else
@@ -94,12 +77,12 @@ removeRabbitmqLibreTimeSettings
 set -e
 
 for i in ${FILES[*]}; do
-    rm -rf $i
+  rm -rf "$i"
 done
 
 echo -e "\nDo you want to drop your current LibreTime database? [y/N]: \c"
-read IN
+read -r IN
-if [[ "$IN" = "y" || "$IN" = "Y" ]]; then
+if [[ $IN == "y" || $IN == "Y" ]]; then
   echo -e "\nDropping LibreTime database..."
   dropLibreTimeDatabase
 fi

utils/airtime-log

@@ -1,7 +1,7 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Absolute path to this script
-SCRIPT=`readlink -f $0`
+SCRIPT=$(readlink -f $0)
 # Absolute directory this script is in
-SCRIPTPATH=`dirname $SCRIPT`
+SCRIPTPATH=$(dirname $SCRIPT)
 
 php -q $SCRIPTPATH/airtime-log.php "$@" || exit 1

utils/airtime-test-soundcard

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #-------------------------------------------------------------------------------
 #   Copyright (c) 2011 Sourcefabric O.P.S.
 #
@@ -24,10 +24,10 @@
 #  This script send data to data collection server
 #
 # Absolute path to this script
-SCRIPT=`readlink -f $0`
+SCRIPT=$(readlink -f $0)
 # Absolute directory this script is in
-SCRIPTPATH=`dirname $SCRIPT`
+SCRIPTPATH=$(dirname $SCRIPT)
 
-cd $SCRIPTPATH
+cd $SCRIPTPATH || exit 1
 
 python airtime-test-soundcard.py "$@" || exit 1

utils/airtime-test-stream

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #-------------------------------------------------------------------------------
 #   Copyright (c) 2011 Sourcefabric O.P.S.
 #
@@ -24,10 +24,10 @@
 #  This script send data to data collection server
 #
 # Absolute path to this script
-SCRIPT=`readlink -f $0`
+SCRIPT=$(readlink -f $0)
 # Absolute directory this script is in
-SCRIPTPATH=`dirname $SCRIPT`
+SCRIPTPATH=$(dirname $SCRIPT)
 
-cd $SCRIPTPATH
+cd $SCRIPTPATH || exit 1
 
 python airtime-test-stream.py "$@" || exit 1

utils/libretime-backup.sh

@@ -1,46 +1,44 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
-if [ -z "$1" ]
+if [ -z "$1" ]; then
-        then
   ## Use config
   backup_folder=~/libretime_backup/
-        else
+else
   ## User arg as config
   backup_folder=$1
 fi
 
-
 airtime_conf_path=/etc/airtime/airtime.conf
 uploads_folder=/srv/airtime/stor/
 
-psdl_db=$(grep dbname ${airtime_conf_path} | awk '{print $3;}' )
+psql_db=$(grep dbname ${airtime_conf_path} | awk '{print $3;}')
-psql_user=$(grep dbuser ${airtime_conf_path} | awk '{print $3;}' )
+psql_user=$(grep dbuser ${airtime_conf_path} | awk '{print $3;}')
-psql_password=$(grep dbpass ${airtime_conf_path} | awk '{print $3;}' )
+psql_password=$(grep dbpass ${airtime_conf_path} | awk '{print $3;}')
 
 ## Remove old backup
-rm -rf $backup_folder
+rm -rf "$backup_folder"
-mkdir $backup_folder
+mkdir "$backup_folder"
 
 ## Backup of database
 
-echo 'db: Getting database...'
+echo "db: Getting database..."
-pg_dump --dbname='postgresql://'$psql_user':'$psql_password'@localhost/'$psql_db > $backup_folder'database'
+pg_dump --dbname="postgresql://$psql_user:$psql_password@localhost/$psql_db" > "${backup_folder}database"
-echo 'db: Complete'
+echo "db: Complete"
 
 ## Backup of sounds
 
-mkdir $backup_folder'uploads/'
+mkdir "${backup_folder}uploads/"
 
-echo 'stor : Copying uploaded files...'
+echo "stor : Copying uploaded files..."
-rsync -r -a --info=progress2 $uploads_folder $backup_folder'uploads/'
+rsync -r -a --info=progress2 $uploads_folder "${backup_folder}uploads/"
-echo 'stor: Complete'
+echo "stor: Complete"
 
 ## Backup of libretime config
 
-mkdir $backup_folder'airtime_config/'
+mkdir "${backup_folder}airtime_config/"
 
-echo 'config: Copying config...'
+echo "config: Copying config..."
-rsync -r -a --info=progress2 /etc/airtime/ $backup_folder'airtime_config/'
+rsync -r -a --info=progress2 /etc/airtime/ "${backup_folder}airtime_config/"
-echo 'config: Complete'
+echo "config: Complete"
 
-date >> $backup_folder'datelog.txt'
+date >> "${backup_folder}datelog.txt"

utils/rabbitmq-update-pid.sh

@@ -1,14 +1,14 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 /etc/init.d/rabbitmq-server status | grep "\[{pid"
 pid_found="$?"
 
 if [ "$pid_found" == "0" ]; then
   #PID is available in the status message
-    rabbitmqpid=`/etc/init.d/rabbitmq-server status | grep "\[{pid" | sed "s/.*,\(.*\)\}.*/\1/"`
+  rabbitmqpid=$(/etc/init.d/rabbitmq-server status | grep "\[{pid" | sed "s/.*,\(.*\)\}.*/\1/")
 else
   #PID should be available from file
-    rabbitmqpid=`sed "s/.*,\(.*\)\}.*/\1/" /var/lib/rabbitmq/pids`
+  rabbitmqpid=$(sed "s/.*,\(.*\)\}.*/\1/" /var/lib/rabbitmq/pids)
 fi
 
 echo "RabbitMQ PID: $rabbitmqpid"

utils/rivendell-converter.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # A bash script to convert all Rivendell's audio-library to MP3, extract meta-tags from Rivendell's
 # database and set appropriate tags to each MP3 file.
@@ -7,7 +7,6 @@
 # 1 - Rivendell store files in .wav format, airtime uses .mp3 format
 # 2 - WAV does not have Meta-tag support so all meta-tags need to be fetched from Rivendell database.
 
-
 if [ $# -ne 2 ]; then
   echo "usage: $0 <rivendell_dir> <final_dir>"
   exit
@@ -22,23 +21,21 @@ db="Rivendell" #Edit this only if you changed Rivendell's database name :-)
 rivendell_dir=$1
 end_dir=$2
 
-cd "$rivendell_dir"
+cd "$rivendell_dir" || (echo "could not cd in $rivendell_dir" && exit 1)
 
-for file in *
+for file in *; do
-do
   lame "$file"
 done
 
 mv "$rivendell_dir"/*.mp3 "$end_dir"
-cd "$end_dir"
+cd "$end_dir" || (echo "could not cd in $end_dir" && exit 1)
 
-for file in *
+for file in *; do
-do
+  id=$(echo "$file" | head -c 10)
-        id=`echo $file | head -c 10`
+  title=$(mysql -u $user -p$pass -sN -e "SELECT CU.DESCRIPTION FROM CUTS CU, CART CA WHERE CA.NUMBER=CU.CART_NUMBER AND CU.CUT_NAME=\"${id}\"" $db)
-        title=`mysql -u $user -p$pass -sN -e "SELECT CU.DESCRIPTION FROM CUTS CU, CART CA WHERE CA.NUMBER=CU.CART_NUMBER AND CU.CUT_NAME=\"${id}\"" $db`
+  artist=$(mysql -u $user -p$pass -sN -e "SELECT CA.ARTIST FROM CUTS CU, CART CA WHERE CA.NUMBER=CU.CART_NUMBER AND CU.CUT_NAME=\"${id}\"" $db)
-        artist=`mysql -u $user -p$pass -sN -e "SELECT CA.ARTIST FROM CUTS CU, CART CA WHERE CA.NUMBER=CU.CART_NUMBER AND CU.CUT_NAME=\"${id}\"" $db`
+  album=$(mysql -u $user -p$pass -sN -e "SELECT CA.ALBUM FROM CUTS CU, CART CA WHERE CA.NUMBER=CU.CART_NUMBER AND CU.CUT_NAME=\"${id}\"" $db)
-        album=`mysql -u $user -p$pass -sN -e "SELECT CA.ALBUM FROM CUTS CU, CART CA WHERE CA.NUMBER=CU.CART_NUMBER AND CU.CUT_NAME=\"${id}\"" $db`
+  year=$(mysql -u $user -p$pass -sN -e "SELECT CA.YEAR FROM CUTS CU, CART CA WHERE CA.NUMBER=CU.CART_NUMBER AND CU.CUT_NAME=\"${id}\"" $db)
-        year=`mysql -u $user -p$pass -sN -e "SELECT CA.YEAR FROM CUTS CU, CART CA WHERE CA.NUMBER=CU.CART_NUMBER AND CU.CUT_NAME=\"${id}\"" $db`
   id3 -t "$title" -a "$artist" -A "$album" -y "$year" $file
   mv "$file" "$artist-$title.mp3"
 done