dotfiles/bootstrap/autostow.sh
Marty Oehme 4dfb9767ee Add dryrun capability to autostow.sh
Invoking a dry-run with `autostow.sh -n` will simply print out the
directories it would operate on, and those it would ignore and exit.
Useful for debugging, not much more.
2020-01-30 12:50:37 +01:00

123 lines
2.7 KiB
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Executable file

#!/usr/bin/env bash
#
# autostow.sh
#
# Stow automatic symlinking script
#
# Invokes stow for every folder within this repository, and that's it.
ignore="${AUTOSTOW_IGNORED_DIRS:-"bootstrap:assets"}"
main() {
case "$1" in
-s | --stow)
have_stow
echo "Creating dotfile symlinks ................................................."
stow_dirs
echo "Done creating symlinks ...................................................."
exit 0
;;
-d | --delete)
have_stow
echo "Removing dotfile symlinks ................................................."
unstow_dirs
echo "Done removing symlinks ...................................................."
exit 0
;;
-n | --dry-run)
have_stow
echo "Printing processed directories ............................................"
dryrun
echo "Done printing directories ................................................."
exit 0
;;
-v | --version)
printf "System bootstrap script.\n\n©Marty Oehme\n\nVersion: 0.2\n"
;;
-h | --help | *)
usage
exit 0
;;
esac
shift
}
stow_dirs() {
for d in */; do
if is_ignored "$d"; then
printf "ignoring %s\n" "$d"
continue
fi
printf "stowing %s\n" "$d"
stow -S -t ~ "$d"
done
}
unstow_dirs() {
for d in */; do
if is_ignored "$d"; then
printf "ignoring %s\n" "$d"
continue
fi
printf "unstowing %s\n" "$d"
stow -D -t ~ "$d"
done
}
dryrun() {
for d in */; do
if is_ignored "$d"; then
printf "ignoring %s\n" "$d"
continue
fi
printf "processing %s\n" "$d"
done
}
is_ignored() {
IFS=":"
for ign in $ignore; do
if [ "$ign" == "$1" ] || [ "$ign/" == "$1" ]; then
return 0
fi
done
return 1
}
have_stow() {
if ! type stow >/dev/null 2>&1; then
printf "GNU stow needs to be installed for this script to function. Please install stow through your package manager.\n"
exit 1
fi
}
usage() {
printf "%s\n" \
"" \
" autostow.sh - Automatically stow your dotfiles." \
" Uses GNU stow to set up automatic links to any dotfiles in subdirectories of this directory." \
"" \
" Usage: stow.sh -dhsn" \
"" \
" Options:" \
"" \
" -h | --help Print out this help." \
"" \
" -s | --stow Install dotfiles, by symlinking any directory found next to stow.sh using GNU stow." \
"" \
" -d | --delete Remove dotfiles, by unlinking any directory found next to stow.sh using GNU stow." \
"" \
" -n | --dry-run Do not invoke any operation but print out directories affected, simulating a dry-run." \
"" \
" -d Remove dotfiles, by unlinking any directory found next to stow.sh using GNU stow." \
"" \
""
}
main "$@"