Fix shellcheck complaints about provisioning scripts

Also adds executable attributes to shell scripts that were missing it.

Change-Id: Id52ef495147fdbfb5cb1a1f711fac530e0e85f3b
Reviewed-by: Jukka Jokiniva <jukka.jokiniva@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

coin/provisioning/common/shared/telegraf/telegraf-ioping.sh

@@ -14,7 +14,7 @@
 
 set -e
 
-[ x"$1" = x ] && echo "$0 takes a path as a first argument" && exit 1
+[ -z "$1" ] && echo "$0 takes a path as a first argument" && exit 1
 
 # Try to run in high priority to avoid slow-downs because of
 # factors other than I/O.
@@ -25,4 +25,4 @@ rlatency="$(ioping -B -k -c 3 -i 0.1     "$1" | cut -d " " -f 5)"
 wlatency="$(ioping -B -k -c 3 -i 0.1 -W  "$1" | cut -d " " -f 5)"
 
 printf "ioping,path=$1 read_latency_ns=%u,write_latency_ns=%u\n"  \
-       $rlatency  $wlatency
+       "$rlatency" "$wlatency"

coin/provisioning/common/shared/testserver/docker_images.sh

@@ -4,11 +4,11 @@
 
 set -e
 
-
 PROVISIONING_DIR="$(dirname "$0")/../../../"
-. "$PROVISIONING_DIR"/common/unix/common.sourced.sh
-. "$PROVISIONING_DIR"/common/unix/DownloadURL.sh
-
+# shellcheck source=../../../common/unix/common.sourced.sh
+source "$PROVISIONING_DIR"/common/unix/common.sourced.sh
+# shellcheck source=../../../common/unix/DownloadURL.sh
+source "$PROVISIONING_DIR"/common/unix/DownloadURL.sh
 
 # Sort files by their SHA-1, and then return the accumulated result
 sha1tree () {
@@ -16,14 +16,14 @@ sha1tree () {
     [ -x "$(command -v sha1sum)" ] || SHASUM=shasum
 
     find "$@" -type f -print0 | \
-        xargs -0 ${SHASUM-sha1sum} | cut -d ' ' -f 1 | \
-        sort | ${SHASUM-sha1sum} | cut -d ' ' -f 1
+        xargs -0 "${SHASUM-sha1sum}" | cut -d ' ' -f 1 | \
+        sort | "${SHASUM-sha1sum}" | cut -d ' ' -f 1
 }
 
 
 SERVER_PATH="$PROVISIONING_DIR/common/shared/testserver"
 
-. "$SERVER_PATH/settings.sh"
+source "$SERVER_PATH/settings.sh"
 
 
 # Download all necessary dependencies outside of the dockerfiles, so that we
@@ -87,10 +87,10 @@ do
     # backwards-incompatible changes across repositories.
 
     context="$SERVER_PATH/$server"
-    tag=$(sha1tree $context)
-    docker build -t qt-test-server-$server:latest  \
-                 -t qt-test-server-$server:$tag    \
-        $context
+    tag=$(sha1tree "$context")
+    docker build -t "qt-test-server-$server:latest"  \
+                 -t "qt-test-server-$server:$tag"    \
+        "$context"
 done
 
 docker images

coin/provisioning/common/shared/testserver/docker_machine.sh

@@ -7,16 +7,16 @@ set -ex
 TestMachine='qt-test-server'
 
 # Deploy docker virtual machine (Boot2Docker) into VirtualBox only if it doesn't exist
-if [ -z $(docker-machine ls -q --filter "name=$TestMachine") ]
+if [ -z "$(docker-machine ls -q --filter "name=$TestMachine")" ]
 then
-    docker-machine create $@ $TestMachine
-    docker-machine ip $TestMachine
+    docker-machine create "$@" "$TestMachine"
+    docker-machine ip "$TestMachine"
 else
     # Otherwise, start the docker machine and update with new TLS certificates.
-    docker-machine start $TestMachine && docker-machine regenerate-certs -f $TestMachine
+    docker-machine start "$TestMachine" && docker-machine regenerate-certs -f "$TestMachine"
 fi
 
 # Switch the docker engine to $TestMachine
-eval $(docker-machine env $TestMachine)
+eval "$(docker-machine env "$TestMachine")"
 
 docker-machine ls

coin/provisioning/common/shared/testserver/docker_testserver.sh

@@ -4,7 +4,7 @@
 
 set -ex
 
-[ -x "$(command -v realpath)" ] && FILE=$(realpath ${BASH_SOURCE[0]}) || FILE=${BASH_SOURCE[0]}
+[ -x "$(command -v realpath)" ] && FILE=$(realpath "${BASH_SOURCE[0]}") || FILE="${BASH_SOURCE[0]}"
 case $FILE in
     */*) SERVER_PATH="${FILE%/*}" ;;
     *) SERVER_PATH="." ;;
@@ -23,4 +23,4 @@ esac
 docker info
 
 # Create images
-$SERVER_PATH/docker_images.sh
+"$SERVER_PATH/docker_images.sh"

coin/provisioning/common/shared/testserver/settings.sh

@@ -1,3 +1,4 @@
+#!/usr/bin/env bash
 # Copyright (C) 2019 The Qt Company Ltd.
 # SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only