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add and further improve error handling

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This commit is contained in:
Connor Olding 2021-07-31 13:42:20 -07:00
parent 762f7ffe35
commit 1e216752b6
1 changed files with 28 additions and 21 deletions
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49
install
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@ -22,36 +22,44 @@ die() {
}
backup() {
: "${1:?missing arugment}"
note "backing up $1"
mkdir -p "${backup_dir:?backup_dir unset}/$(dirname "$1")"
[ -e "$backup_dir/$1" ] && die "backup already exists"
[ ! -e "$backup_dir/$1" ] || die "backup already exists"
mv "$1" "$backup_dir/$1"
}
hardlink() {
: "${1:?missing arugment}"
: "${2:?missing arugment}"
if [ -e "$1" ]; then
[ "$1" -ef "$2" ] && return
[ -h "$1" ] && note "removing symbolic link $1" && rm "$1"
[ ! "$1" -ef "$2" ] || return 0
if [ -h "$1" ]; then
note "removing symbolic link $1"
rm "$1" || die 'failed to remove symbolic link'
fi
if [ -s "$1" ]; then
backup "$1" || die "$1 already exists"
fi
fi
ln "$2" "$1" || die "couldn't hardlink $1"
ln "$2" "$1" || die "failed to hardlink $1"
}
softlink_nix() {
: "${1:?missing arugment}"
: "${2:?missing arugment}"
if [ -e "$1" ]; then
if [ -h "$1" ]; then
[ "$(readlink "$1")" = "$2" ] && return
[ "$(readlink "$1")" != "$2" ] || return 0
note "removing symbolic link $1"
rm "$1"
rm "$1" || die 'failed to remove symbolic link'
else
die "$1 already exists and is not a symbolic link"
fi
fi
ln -s "$2" "$1" || die "couldn't symlink $1"
ln -s "$2" "$1" || die "failed to symlink $1"
}
list_files() {
@ -62,11 +70,10 @@ list_files() {
}
softlink_pseudo() {
: "${1:?missing arugment}"
: "${2:?missing arugment}"
[ -d "$2" ] || die "$1 is not a directory to softlink"
if [ ! -d "$1" ]; then
mkdir "$1" || die "couldn't mkdir $1"
fi
[ -d "$1" ] || mkdir "$1" || die "failed to mkdir $1"
list_files "$2" | while read -r f; do
local d1="$1/$f"
@ -75,27 +82,27 @@ softlink_pseudo() {
if [ -d "$d2" ]; then
if [ "$d1" != ".vim/bundle" ]; then # buggy on Windows
[ "${VERBOSE:-0}" -lt 1 ] || warn $'\e[34m / \e[0m' "$d1 $d2"
softlink_pseudo "$d1" "$d2"
softlink_pseudo "$d1" "$d2" || exit $?
fi
elif [ -f "$d2" ]; then
[ "${VERBOSE:-0}" -lt 1 ] || warn $'\e[34m * \e[0m' "$d1"
hardlink "$d1" "$d2"
hardlink "$d1" "$d2" || exit $?
else
die "i don't know how to pseudo-symlink $d2"
fi
done || exit $?
}
find_new_files() {
: "${1:?missing arugment}"
list_files "$1" | while read -r f; do
local d1="$1/$f"
local d2="$2/$f"
[ "$d1" = ".vim/.netrwhist" ] && continue
[ "$d1" = ".vim/backup" ] && continue
[ "$d1" = ".vim/bundle" ] && continue
[ "$d1" = ".vim/swp" ] && continue
[ "$d1" = ".vim/undo" ] && continue
[ "$d1" != ".vim/.netrwhist" ] || continue
[ "$d1" != ".vim/backup" ] || continue
[ "$d1" != ".vim/bundle" ] || continue
[ "$d1" != ".vim/swp" ] || continue
[ "$d1" != ".vim/undo" ] || continue
if [ -d "$d2" ]; then
find_new_files "$d1" "$d2"
elif [ ! "$d1" -ef "$d2" ]; then
@ -140,7 +147,7 @@ done
# ensure that .bashrc gets executed
if [ ! -e .bash_profile ] || ! grep -qF .bashrc .bash_profile; then
echo >> .bash_profile
echo '[ -f ~/.bashrc ] && . ~/.bashrc' >> .bash_profile
echo '[ ! -f ~/.bashrc ] || . ~/.bashrc' >> .bash_profile
fi
is_empty() {
@ -157,7 +164,7 @@ is_empty() {
for d in Desktop Documents Downloads Music Pictures Public Templates Video Videos; do
[ -d "$d" ] || continue
if is_empty "$d"; then
rm -r "$d"
rm -r "$d" # doesn't really matter if it fails
else
note "not removing $d because it contains files"
fi