105 lines
2.1 KiB
Bash
Executable File
105 lines
2.1 KiB
Bash
Executable File
#!/bin/bash
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# input parameters :
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# $1 path to source directory
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# $2 path to destination directory
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# $3 optional list of files
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# this script will:
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# if provided two first parameters:
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# create in dest directory same drectory tree as in src directory
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# for each *./h/c/s file in src directory tree
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# if provided 3 parameters
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# create for each file from the list link in destination directory to file from src directory
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# in both cases
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# if link to src file not exists new link will be created
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# if link exists will compare file time stamps and update link time
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# stamp in case that file was modified after link creation time
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# uncomment for debug
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#set -x
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#list of src directories
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dir_list=
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#src and dest path
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src_path=$1
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dest_path=$2
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DIR_ARGS=2
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args=("$@")
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[ -z "$LN_FORCE" ] && LN_FORCE=true
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#will fill dir_list
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get_dir_list()
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{
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cd $src_path
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dir_list=`du|awk '{print $2}' | sed -e 's/.\///' |grep -v "\."`
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}
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#check and create link for file ($1 - file name)
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check_create_link()
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{
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file=$1
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if [ ! -e $dest_path/$file ]
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then
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mkdir -p $dest_path
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echo " LN $file->$dest_path/$file"
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[ "$LN_FORCE" == true ] && LN_PARAM="-snf" || LN_PARAM="-s"
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ln $LN_PARAM $src_path/$file $dest_path/$file
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else
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src_file_time=`stat -c %Y $src_path/$file`
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link_file_time=`stat -c %Y $dest_path/$file`
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[ $src_file_time -gt $link_file_time ] && echo "LN UPDATE $file->$dest_path/$file" ; unlink $dest_path/$file; ln -s $src_path/$file $dest_path/$file
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fi
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}
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#create links for directory tree
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make_dir_links()
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{
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#get src dir list
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get_dir_list
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#create dest dir tree
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cd $dest_path
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for i in $dir_list
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do
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mkdir -p $i
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done
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#create/update links
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cd $src_path
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for i in `find . -name "*.[chsS]" -print`
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do
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check_create_link $i
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done
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}
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#create links for file list
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make_file_links()
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{
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#for all files in file list
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for ((i=2; i < $#; i++)) {
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#create link for file from file list (bash array)
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check_create_link ${args[$i]}
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}
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}
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main()
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{
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#if provided 3 parameters create links for file list
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if [ $# -gt $DIR_ARGS ]
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then
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make_file_links $@
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#create links for directory tree
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else
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make_dir_links $@
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fi
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}
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main $@
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