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82 lines
1.6 KiB
82 lines
1.6 KiB
##
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# some functions for file handling...this includes a kind of
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# include_once for shell scripts. This one also includes the
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# utils/program.sh file as it is needed in all scripts.
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#
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command -v filename2symbol >/dev/null
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if [ $? -ne 0 ]
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then
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filename2symbol() {
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local SYM="${1}"
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if [ 1 -ne $# ]
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then
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${LOGGER} -p syslog.err 'filename2sybol: missing filename'
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exit 1
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fi
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while [ "${SYM}" != "${SYM%/*}" -o "${SYM}" != "${SYM%.*}" ]
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do
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if [ "${SYM}" != "${SYM%.*}" ]
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then
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SYM="${SYM%%.*}_${SYM#*.}"
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else
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SYM="${SYM%%/*}_${SYM#*/}"
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fi
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done
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echo "${SYM}"
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}
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##
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# create an absolute filename from a given relative one.
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# This deals only with leading ./ and ../ it does not
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# handle then when they are in the middle of the name.
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#
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abs_filename() {
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local FILE="${1}"
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local DIR="${PWD}"
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# if FILE starts with a / its already absolute
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if [ "${FILE}" != ${FILE#/} ]
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then
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echo "${FILE}"
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return 0
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fi
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# simply remove ./ and make a ../ remove a part from pwd
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while [ "${FILE}" != ${FILE#./} -o "${FILE}" != ${FILE#../} ]
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do
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if [ "${FILE}" != ${FILE#./} ]
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then
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FILE="${FILE#./}"
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else
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FILE="${FILE#../}"
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DIR="${DIR%/*}"
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fi
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done
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echo "${DIR}/${FILE}"
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}
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include_once() {
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local FILE="$(abs_filename "${1}")"
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local SYM="$(filename2symbol "${FILE}")"
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if [ 1 -ne $# ]
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then
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${LOGGER} -p syslog.err 'include_once: missing filename'
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exit 1
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fi
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if eval [ -z \"\${SOURCED_${SYM}}\" ]
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then
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eval export SOURCED_${SYM}=\"\${FILE}\"
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. ${FILE}
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fi
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}
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include_once utils/programs.sh
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fi
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# vim: set ts=4 sw=4:
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