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#!/bin/sh -ef
[ "$1" ] || {
printf 'usage: kiss-link file\n'
exit 1
}
[ -f "${file:=$1}" ] || {
printf 'file %s does not exist in the current directory\n' "$1"
exit 1
}
oPWD=$PWD
# Check if the package exists in a repository and error out here
# if it does not. The error message from the package manager will
# be displayed.
kiss s "${PWD##*/}" >/dev/null
# Disable this warning as globbing is disabled and word splitting
# is intentional. This grabs the location of the package's files.
# shellcheck disable=2046
{
# Generate a list of repositories in which the package
# exists. Then 'cd' to the first found directory to do a
# comparison.
set -- $(kiss s "${PWD##*/}"); cd "$1"
# Error if the package exists nowhere but the current
# directory and this script would create a broken symlink.
[ -z "$2" ] && [ "$PWD" = "$oPWD" ] && {
printf 'error: cannot symlink file to itself\n'
exit 1
}
# If the first repository in '$KISS_PATH' is the current
# directory, use the second repository in the list.
[ "$PWD" = "$oPWD" ] && shift
# Finally, make the link to the file in whatever repository
# it was found in.
ln -sf "$1/$file" "$file"
}
printf 'linked %s to %s\n' "$file" "$1"
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