tdf#105204 fix shellcheck warnings in desktop/scripts

Use $(..) instead of `..`,
use && and || instead of -a and -o,
double quote to prevent word splitting,
handle cd failure.

Change-Id: I860891323a81ac4a46c868ab028df1e1f837c115
Reviewed-on: https://gerrit.libreoffice.org/33897Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: jan iversen <jani@documentfoundation.org>

desktop/scripts/sbase.sh

 #!/bin/sh
 
-cmd=`dirname "$0"`/soffice
+cmd=$(dirname "$0")/soffice
 exec "$cmd" --base "$@"

desktop/scripts/scalc.sh

 #!/bin/sh
 
-cmd=`dirname "$0"`/soffice
+cmd=$(dirname "$0")/soffice
 exec "$cmd" --calc "$@"

desktop/scripts/sdraw.sh

 #!/bin/sh
 
-cmd=`dirname "$0"`/soffice
+cmd=$(dirname "$0")/soffice
 exec "$cmd" --draw "$@"

desktop/scripts/simpress.sh

 #!/bin/sh
 
-cmd=`dirname "$0"`/soffice
+cmd=$(dirname "$0")/soffice
 exec "$cmd" --impress "$@"

desktop/scripts/smath.sh

 #!/bin/sh
 
-cmd=`dirname "$0"`/soffice
+cmd=$(dirname "$0")/soffice
 exec "$cmd" --math "$@"

desktop/scripts/soffice.sh

@@ -39,20 +39,30 @@ export SAL_ENABLE_FILE_LOCKING
 
 #@JITC_PROCESSOR_TYPE_EXPORT@
 
+cd_or_exit() {
+    if ! cd "$1"; then
+        echo "Can't cd to $1"
+        exit 1
+    fi
+}
+
 # resolve installation directory
-sd_cwd=`pwd`
+sd_cwd=$(pwd)
 sd_res="$0"
 while [ -h "$sd_res" ] ; do
-    cd "`dirname "$sd_res"`"
-    sd_basename=`basename "$sd_res"`
-    sd_res=`ls -l "$sd_basename" | sed "s/.*$sd_basename -> //g"`
+    sd_dirname=$(dirname "$sd_res")
+    cd_or_exit "$sd_dirname"
+    sd_basename=$(basename "$sd_res")
+    sd_res=$(ls -l "$sd_basename" | sed "s/.*$sd_basename -> //g")
 done
-cd "`dirname "$sd_res"`"
-sd_prog=`pwd`
-cd "$sd_cwd"
+sd_dirname=$(dirname "$sd_res")
+cd_or_exit "$sd_dirname"
+sd_prog=$(pwd)
+cd_or_exit "$sd_cwd"
 
 # linked build needs additional settings
 if [ -e "${sd_prog}/ooenv" ] ; then
+    # shellcheck source=../../instsetoo_native/ooenv
     . "${sd_prog}/ooenv"
 fi
 
@@ -71,7 +81,7 @@ test -n "$VALGRIND" && EXTRAOPT="--valgrind"
 # force the --record option if the RR variable is set
 test -n "$RR" && EXTRAOPT="--record"
 
-for arg in $@ $EXTRAOPT ; do
+for arg in "$@" $EXTRAOPT ; do
     case "$arg" in
         --record)
             if which rr >/dev/null 2>&1 ; then
@@ -106,11 +116,11 @@ for arg in $@ $EXTRAOPT ; do
                 # another valgrind tool might be forced via the environment variable
                 test -z "$VALGRIND" && VALGRIND="memcheck"
                 # --trace-children-skip is pretty useful but supported only with valgrind >= 3.6.0
-                valgrind_ver=`valgrind --version | sed -e "s/valgrind-//"`
-                valgrind_ver_maj=`echo $valgrind_ver | awk -F. '{ print \$1 }'`
-                valgrind_ver_min=`echo $valgrind_ver | awk -F. '{ print \$2 }'`
+                valgrind_ver=$(valgrind --version | sed -e "s/valgrind-//")
+                valgrind_ver_maj=$(echo "$valgrind_ver" | awk -F. '{ print \$1 }')
+                valgrind_ver_min=$(echo "$valgrind_ver" | awk -F. '{ print \$2 }')
                 valgrind_skip=
-                if [ "$valgrind_ver_maj" -gt 3 -o \( "$valgrind_ver_maj" -eq 3 -a "$valgrind_ver_min" -ge 6 \) ] ; then
+                if [ "$valgrind_ver_maj" -gt 3 ] || ( [ "$valgrind_ver_maj" -eq 3 ] && [ "$valgrind_ver_min" -ge 6 ] ) ; then
                     valgrind_skip='--trace-children-skip=*/java,*/gij'
                 fi
                 # finally set the valgrind check
@@ -137,7 +147,7 @@ if echo "$checks" | grep -q "cc" ; then
     exit 1;
 fi
 
-case "`uname -s`" in
+case "$(uname -s)" in
 NetBSD|OpenBSD|DragonFly)
 # this is a temporary hack until we can live with the default search paths
     LD_LIBRARY_PATH="$sd_prog${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
@@ -158,14 +168,14 @@ LC_ALL="$LO_SAVE_LC_ALL"
 
 # run soffice.bin directly when you want to get the backtrace
 if [ -n "$GDBTRACECHECK" ] ; then
-    exec $GDBTRACECHECK "$sd_prog/soffice.bin" "$@"
+    exec "$GDBTRACECHECK" "$sd_prog/soffice.bin" "$@"
 fi
 
 # valgrind --log-file=valgrind.log does not work well with --trace-children=yes
-if [ -n "$VALGRINDCHECK" -a -z "$VALGRIND" ] ; then
+if [ -n "$VALGRINDCHECK" ] && [ -z "$VALGRIND" ] ; then
     echo "redirecting the standard and the error output to valgrind.log"
     exec > valgrind.log 2>&1
 fi
 
 # oosplash does the rest: forcing pages in, javaldx etc. are
-exec $RRCHECK $VALGRINDCHECK $STRACECHECK "$sd_prog/oosplash" "$@"
+exec "$RRCHECK" "$VALGRINDCHECK" "$STRACECHECK" "$sd_prog/oosplash" "$@"

desktop/scripts/swriter.sh

 #!/bin/sh
 
-cmd=`dirname "$0"`/soffice
+cmd=$(dirname "$0")/soffice
 exec "$cmd" --writer "$@"

desktop/scripts/unoinfo-mac.sh

@@ -22,12 +22,14 @@ set -e
 # resolve installation directory
 sd_res="$0"
 while [ -h "$sd_res" ] ; do
-    cd "`dirname "$sd_res"`"
-    sd_basename=`basename "$sd_res"`
-    sd_res=`ls -l "$sd_basename" | sed "s/.*$sd_basename -> //g"`
+    sd_dirname=$(dirname "$sd_res")
+    cd "$sd_dirname"
+    sd_basename=$(basename "$sd_res")
+    sd_res=$(ls -l "$sd_basename" | sed "s/.*$sd_basename -> //g")
 done
-cd "`dirname "$sd_res"`"
-sd_prog=`pwd`
+sd_dirname=$(dirname "$sd_res")
+cd "$sd_dirname"
+sd_prog=$(pwd)
 
 case "$1" in
 c++)

desktop/scripts/unoinfo.sh

@@ -22,12 +22,14 @@ set -e
 # resolve installation directory
 sd_res="$0"
 while [ -h "$sd_res" ] ; do
-    cd "`dirname "$sd_res"`"
-    sd_basename=`basename "$sd_res"`
-    sd_res=`ls -l "$sd_basename" | sed "s/.*$sd_basename -> //g"`
+    sd_dirname=$(dirname "$sd_res")
+    cd "$sd_dirname"
+    sd_basename=$(basename "$sd_res")
+    sd_res=$(ls -l "$sd_basename" | sed "s/.*$sd_basename -> //g")
 done
-cd "`dirname "$sd_res"`"
-sd_prog=`pwd`
+sd_dirname=$(dirname "$sd_res")
+cd "$sd_dirname"
+sd_prog=$(pwd)
 
 case "$1" in
 c++)

desktop/scripts/unopkg.sh

@@ -21,20 +21,29 @@
 SAL_ENABLE_FILE_LOCKING=1
 export SAL_ENABLE_FILE_LOCKING
 
+cd_or_exit() {
+    if ! cd "$1"; then
+        echo "Can't cd to $1"
+        exit 1
+    fi
+}
+
 # resolve installation directory
-sd_cwd=`pwd`
+sd_cwd=$(pwd)
 sd_res="$0"
 while [ -h "$sd_res" ] ; do
-    cd "`dirname "$sd_res"`"
-    sd_basename=`basename "$sd_res"`
-    sd_res=`ls -l "$sd_basename" | sed "s/.*$sd_basename -> //g"`
+    sd_dirname=$(dirname "$sd_res")
+    cd_or_exit "$sd_dirname"
+    sd_basename=$(basename "$sd_res")
+    sd_res=$(ls -l "$sd_basename" | sed "s/.*$sd_basename -> //g")
 done
-cd "`dirname "$sd_res"`"
-sd_prog=`pwd`
-cd "$sd_cwd"
+sd_dirname=$(dirname "$sd_res")
+cd_or_exit "$sd_dirname"
+sd_prog=$(pwd)
+cd_or_exit "$sd_cwd"
 
 # this is a temporary hack until we can live with the default search paths
-case "`uname -s`" in
+case "$(uname -s)" in
 NetBSD|OpenBSD|FreeBSD|DragonFly)
     LD_LIBRARY_PATH="$sd_prog${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}"
     JAVA_HOME=$(javaPathHelper -h libreoffice-java 2> /dev/null)
@@ -49,7 +58,7 @@ AIX)
     ;;
 esac
 
-for arg in $@
+for arg in "$@"
 do
   case "$arg" in
        #collect all bootstrap variables specified on the command line
@@ -63,10 +72,10 @@ done
 
 # extend the ld_library_path for java: javaldx checks the sofficerc for us
 if [ -x "${sd_prog}/javaldx" ] ; then
-    my_path=`"${sd_prog}/javaldx" $BOOTSTRAPVARS \
-        "-env:INIFILENAME=vnd.sun.star.pathname:$sd_prog/redirectrc"`
+    my_path=$("${sd_prog}/javaldx" "$BOOTSTRAPVARS" \
+        "-env:INIFILENAME=vnd.sun.star.pathname:$sd_prog/redirectrc")
     if [ -n "$my_path" ] ; then
-        sd_platform=`uname -s`
+        sd_platform=$(uname -s)
         case "$sd_platform" in
           AIX)
             LIBPATH="$my_path${LIBPATH:+:$LIBPATH}"
@@ -91,4 +100,3 @@ unset XENVIRONMENT
 # execute binary
 exec "$sd_prog/unopkg.bin" "$@" \
     "-env:INIFILENAME=vnd.sun.star.pathname:$sd_prog/redirectrc"
-