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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 | |
| 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 | |
| } | |
| 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 | |
| } | |
| echo | |
| setup | |
| test1 | |
| test2 | |
| test3 | |
| test4 |
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