fernando/dotfiles
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install: require -n to perform dry run

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Fernando Schauenburg 2023-07-07 22:24:58 +02:00
parent c41b60a78b
commit 69f142aed8
2 changed files with 30 additions and 22 deletions
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2
README.md
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@ -7,7 +7,7 @@ Always evolving...
```bash ```bash
$ git clone https://github.com/fschauen/dotfiles.git $HOME/.dotfiles $ git clone https://github.com/fschauen/dotfiles.git $HOME/.dotfiles
$ cd $HOME/.dotfiles $ cd $HOME/.dotfiles
$ ./install.sh -f # omit -f for a dry run $ ./install.sh
$ ./unlock.sh # decrypt the SSH configuration $ ./unlock.sh # decrypt the SSH configuration
``` ```

50
install.sh
View file

@ -37,20 +37,13 @@ load_config() {
. "$config" . "$config"
} }
is_dry_run() { [ "$DRY_RUN" = "yes" ]; }
move_aside() { move_aside() {
backup="$1.$(date +%s)" backup="$1.$(date +%s)"
echo "${red}WARNING:$sgr0 moving '$1' to '$backup'" echo "${red}WARNING:$sgr0 moving '$1' to '$backup'"
is_dry_run || mv "$1" "$backup" $cmd mv "$1" "$backup"
} }
greeting() { greeting() {
is_dry_run && {
echo "${yellow}Performing dry run (use -f to actually make changes).$sgr0"
echo
}
echo "Deploying dotfiles:" echo "Deploying dotfiles:"
echo " Source: $cyan$dotfiles$sgr0" echo " Source: $cyan$dotfiles$sgr0"
echo " Destination: $cyan$DESTDIR$sgr0" echo " Destination: $cyan$DESTDIR$sgr0"
@ -68,7 +61,7 @@ make_dir() {
echo "${green}OK:$sgr0 $1" echo "${green}OK:$sgr0 $1"
else else
echo "${yellow}MKDIR:$sgr0 $1" echo "${yellow}MKDIR:$sgr0 $1"
is_dry_run || mkdir -vp "$1" $cmd mkdir -vp "$1"
fi fi
} }
@ -80,7 +73,7 @@ make_link() {
else else
[ -e "$link" ] && move_aside "$link" [ -e "$link" ] && move_aside "$link"
echo "${yellow}LINK:$sgr0 $link $blue->$sgr0 $target" echo "${yellow}LINK:$sgr0 $link $blue->$sgr0 $target"
is_dry_run || ln -sf "$target" "$link" $cmd ln -sf "$target" "$link"
fi fi
} }
@ -106,25 +99,18 @@ EOF
else else
[ -f "$user_config" ] && move_aside "$user_config" [ -f "$user_config" ] && move_aside "$user_config"
echo "${yellow}WRITE:$sgr0 $user_config with '$GIT_USER <$GIT_EMAIL>'" echo "${yellow}WRITE:$sgr0 $user_config with '$GIT_USER <$GIT_EMAIL>'"
is_dry_run || cp -f "$temp_git" "$user_config" $cmd cp -f "$temp_git" "$user_config"
fi fi
} }
usage() { usage() {
echo "Usage: $(basename "$0") [-h] [-f]" echo "Usage: $(basename "$0") [-h] [-n]"
echo "" echo ""
echo " -h print this help and exit" echo " -h print this help and exit"
echo " -f modify filesystem rather than dry run" echo " -n perform dry run"
} }
main() { execute() {
DRY_RUN=yes
while getopts 'fh' opt; do case "$opt" in
f) DRY_RUN=no;;
h) usage; exit 0;;
*) usage; exit 1;;
esac done
load_config || error "could not load config.sh" load_config || error "could not load config.sh"
[ -n "$DESTDIR" ] || error "\$DESTDIR must be set in config.sh" [ -n "$DESTDIR" ] || error "\$DESTDIR must be set in config.sh"
@ -153,5 +139,27 @@ main() {
make_git_user_config make_git_user_config
} }
main() {
while getopts 'hn' opt; do
case "$opt" in
n) # dry run
cmd=echo
echo "${yellow}Performing dry run (no changes will be made).${sgr0}"
echo
;;
h) # help
usage
exit 0
;;
*) # invalid option
usage
exit 1
;;
esac
done
execute
}
main "$@" main "$@"