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Bash test: get the directory of a script
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#!/bin/bash | |
function test { | |
MESSAGE=$1 | |
RECEIVED=$2 | |
EXPECTED=$3 | |
if [ "$RECEIVED" = "$EXPECTED" ]; then | |
echo -e "\033[32m✔︎ Tested $MESSAGE" | |
else | |
echo -e "\033[31m✘ Tested $MESSAGE" | |
echo -e " Received: $RECEIVED" | |
echo -e " Expected: $EXPECTED" | |
fi | |
echo -en "\033[0m" | |
} | |
function testSuite { | |
test 'absolute call' `bash /tmp/1234/test.sh` /tmp/1234 | |
test 'via symlinked dir' `bash /tmp/current/test.sh` /tmp/1234 | |
test 'via symlinked file' `bash /tmp/test.sh` /tmp/1234 | |
test 'via multiple symlinked dirs' `bash /tmp/current/loop/test.sh` /tmp/1234 | |
pushd /tmp >/dev/null | |
test 'relative call' `bash 1234/test.sh` /tmp/1234 | |
popd >/dev/null | |
test 'with space in dir' `bash /tmp/12\ 34/test.sh` /tmp/1234 | |
test 'with space in file' `bash /tmp/1234/te\ st.sh` /tmp/1234 | |
echo | |
} | |
function setup { | |
DIR=/tmp/1234 | |
FILE=test.sh | |
if [ -e $DIR ]; then rm -rf $DIR; fi; mkdir $DIR | |
if [ -f $DIR/$FILE ]; then rm -rf $DIR/$FILE; fi; touch $DIR/$FILE | |
if [ -f /tmp/$FILE ]; then rm /tmp/$FILE; fi; ln -s $DIR/$FILE /tmp | |
if [ -f /tmp/current ]; then rm /tmp/current; fi; ln -s $DIR /tmp/current | |
if [ -f /tmp/current/loop ]; then rm /tmp/current/loop; fi; ln -s $DIR /tmp/current/loop | |
DIR2="/tmp/12 34" | |
FILE2="te st.sh" | |
if [ -e "$DIR2" ]; then rm -rf "$DIR2"; fi; mkdir "$DIR2" | |
if [ -f "$DIR/$FILE2" ]; then rm -rf "$DIR/$FILE2"; fi; ln -s $DIR/$FILE "$DIR/$FILE2" | |
if [ -f "$DIR2/$FILE" ]; then rm -rf "$DIR2/$FILE"; fi; ln -s $DIR/$FILE "$DIR2/$FILE" | |
if [ -f "$DIR2/$FILE2" ]; then rm -rf "$DIR2/$FILE2"; fi; ln -s $DIR/$FILE "$DIR2/$FILE2" | |
} | |
function test1 { | |
echo 'Test 1: via dirname' | |
cat <<- EOF >/tmp/1234/test.sh | |
echo \`dirname \$0\` | |
EOF | |
testSuite | |
} | |
function test2 { | |
echo 'Test 2: via pwd' | |
cat <<- EOF >/tmp/1234/test.sh | |
CACHE_DIR=\$( cd "\$( dirname "\${BASH_SOURCE[0]}" )" && pwd ) | |
echo \$CACHE_DIR | |
EOF | |
testSuite | |
} | |
function test3 { | |
echo 'Test 3: overcomplicated stackoverflow solution' | |
cat <<- EOF >/tmp/1234/test.sh | |
SOURCE="\${BASH_SOURCE[0]}" | |
while [ -h "\$SOURCE" ]; do | |
DIR="\$( cd -P "\$( dirname "\$SOURCE" )" && pwd )" | |
SOURCE="\$(readlink "\$SOURCE")" | |
[[ \$SOURCE != /* ]] && SOURCE="\$DIR/\$SOURCE" | |
done | |
DIR="\$( cd -P "\$( dirname "\$SOURCE" )" && pwd )" | |
echo \$DIR | |
EOF | |
testSuite | |
} | |
function test4 { | |
echo 'Test 4: via readlink' | |
cat <<- EOF >/tmp/1234/test.sh | |
echo \`dirname \$(readlink -f \$0)\` | |
EOF | |
testSuite | |
} | |
function test5 { | |
echo 'Test 5: via readlink with space' | |
cat <<- EOF >/tmp/1234/test.sh | |
echo \`dirname \$(readlink -f "\$0")\` | |
EOF | |
testSuite | |
} | |
echo | |
setup | |
if [ "$1" != "" ]; then | |
$1 | |
else | |
test1 | |
test2 | |
test3 | |
test4 | |
test5 | |
fi |
New fork https://gist.github.com/ptc-mrucci/61772387878ed53a6c717d51a21d9371 includes:
- @glvx changes
- macOS support
- new python-based implementation (motivation: https://stackoverflow.com/a/68056148/133106)
- improved quoting
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greadlink -f
unfortunately doesn't work effectively whensource
ing the script on Mac :(