Polish up bash scripts

- Use '-n' instead of '! -z'
- Quote all the things...
- Enclose variable references in '{}'

Signed-off-by: Thomas Lauf <thomas.lauf@tngtech.com>

test/AtomicFile.t

@@ -1,5 +1,5 @@
 #!/bin/sh
-BASEDIR=$(dirname "$0")
+BASEDIR="$( dirname "$0" )"
 
 if [ "$(uname -s)" = "Darwin" ] ; then
   DLL_TOOL="otool -L"
@@ -7,8 +7,8 @@ else
   DLL_TOOL="ldd"
 fi
 
-if ${DLL_TOOL} ${BASEDIR}/AtomicFileTest | grep -q 'libfiu' ; then
-    exec fiu-run -x ${BASEDIR}/AtomicFileTest
+if "${DLL_TOOL}" "${BASEDIR}/AtomicFileTest" | grep -q 'libfiu' ; then
+    exec fiu-run -x "${BASEDIR}/AtomicFileTest"
 else
-    exec ${BASEDIR}/AtomicFileTest
+    exec "${BASEDIR}/AtomicFileTest"
 fi

test/bash_tap.sh

@@ -33,7 +33,7 @@ function bashtap_run_testcase {
         fi
 
         # Run file line by line.
-        if [ ! -z "$bashtap_line" ] && [ "${bashtap_line:0:2}" != "#!" ]; then
+        if [ -n "$bashtap_line" ] && [ "${bashtap_line:0:2}" != "#!" ]; then
             bashtap_output+="# $ $bashtap_line"
             bashtap_output+=$'\n'
             local cmd_output
@@ -43,7 +43,7 @@ function bashtap_run_testcase {
             cmd_ret=$?
             cmd_output="$(sed 's/^/# >>> /' < bashtap_out_tmp)"
 
-            if [ ! -z "$cmd_output" ]; then
+            if [ -n "$cmd_output" ]; then
                 bashtap_output+="$cmd_output"
                 bashtap_output+=$'\n'
             fi
@@ -55,7 +55,7 @@ function bashtap_run_testcase {
 }
 
 function bashtap_clean_tmpdir {
-    if [ ! -z "$bashtap_tmpdir" ] && [ -d "$bashtap_tmpdir" ]; then
+    if [ -n "$bashtap_tmpdir" ] && [ -d "$bashtap_tmpdir" ]; then
         cd "$bashtap_org_pwd"
         rm -rf "$bashtap_tmpdir"
     fi
@@ -67,7 +67,7 @@ function bashtap_clean_tmpdir {
 function bashtap_get_absolute_path {
     # NOTE: No actual thought put into this. Might break. Horribly.
     # Using this instead of readlink/realpath for OSX compatibility.
-    echo $(cd "$(dirname "$1")" && pwd)/$(basename "$1")
+    echo "$( cd "$( dirname "$1" )" && pwd )/$( basename "$1" )"
 }
 
 
@@ -87,7 +87,7 @@ if [ "${0:(-2)}" == ".t" ] || [ "$1" == "-t" ]; then
 
     # The different calls to mktemp are necessary for OSX compatibility.
     bashtap_tmpdir=$(mktemp -d 2>/dev/null || mktemp -d -t 'bash_tap')
-    if [ ! -z "$bashtap_tmpdir" ]; then
+    if [ -n "$bashtap_tmpdir" ]; then
         cd "$bashtap_tmpdir"
     else
         bashtap_line="Unable to create temporary directory."

test/bash_tap_ti.sh

@@ -14,8 +14,8 @@
 function setup_cfg {
     # Configuration
     for i in data/*.data timewarrior.cfg; do
-       if [ -f "$i" ]; then
-           rm "$i" 2>&1 >/dev/null
+       if [ -f "${i}" ]; then
+           rm "${i}" >/dev/null 2>&1
        fi
     done
 

test/performance-test.sh

@@ -4,21 +4,21 @@ set -e
 
 # Due to system integrity protection, macOS requires us to use a copy of date
 # if we want it to work with faketime.
-DATE=$(command -v date)
-if [ $(uname -s) = "Darwin" ]; then
-    TEMP_DATE=$(mktemp)
-    cp $DATE $TEMP_DATE
-    chmod +x $TEMP_DATE
-    DATE=$TEMP_DATE
+DATE="$( command -v date )"
+if [ "$( uname -s )" = "Darwin" ]; then
+    TEMP_DATE=$( mktemp )
+    cp "${DATE}" "${TEMP_DATE}"
+    chmod +x "${TEMP_DATE}"
+    DATE="${TEMP_DATE}"
     function cleanup {
-        rm -fr $DATE
+        rm -fr "${DATE}"
     }
     trap cleanup EXIT
 fi
 
-THREE_HOURS_BEFORE=$( faketime '3 hours ago' ${DATE} "+%Y%m%dT%H0000" )
-TWO_HOURS_BEFORE=$( faketime '2 hours ago' ${DATE} "+%Y%m%dT%H0000" )
-ONE_HOUR_BEFORE=$( faketime '1 hours ago' ${DATE} "+%Y%m%dT%H0000" )
+THREE_HOURS_BEFORE=$( faketime '3 hours ago' "${DATE}" "+%Y%m%dT%H0000" )
+TWO_HOURS_BEFORE=$( faketime '2 hours ago' "${DATE}" "+%Y%m%dT%H0000" )
+ONE_HOUR_BEFORE=$( faketime '1 hours ago' "${DATE}" "+%Y%m%dT%H0000" )
 
 TIMEW_BIN="${BASH_SOURCE[0]%/*}/../src/timew"
 
@@ -328,7 +328,7 @@ for timew_cmd in ${TIMEW_COMMANDS} ; do
 done
 
 for step in $( seq 0 20 ) ; do
-  YEAR_MONTH=$( faketime "${step} months ago" ${DATE} "+%Y-%m" )
+  YEAR_MONTH="$( faketime "${step} months ago" "${DATE}" "+%Y-%m" )"
 
   if [[ "${step}" -gt 0 ]] ; then
     year=${YEAR_MONTH%-*}

test/timemachine

@@ -130,7 +130,7 @@ for date in "${dates[@]}" ; do
         runtime=$( get_runtime_for "${single_test}" )
         echo "Running test ${single_test} at ${date_time}${runtime:+" with ${runtime}"}"
 
-        if ! faketime "${date_time}" ${runtime} "${single_test}" ; then
+        if ! faketime "${date_time}" "${runtime}" "${single_test}" ; then
           REPORT+="${REPORT+$'\n'}Test ${single_test} broke at ${date_time}!"
           [[ "${fail_at_end-"no"}" == "no" ]] && break 4
         fi