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77 lines
1.2 KiB
77 lines
1.2 KiB
#!/bin/sh
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info() { echo "$$: $*"; }
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err() { echo "E: $$: $*" >&2; }
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set -u
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if [ "x-d" = "x${1:-}" ]; then
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BASE="$2"
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shift 2
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else
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BASE=.
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fi
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FILES="$(readlink -f "$BASE")"
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for x; do
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# clean
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#
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case "$x" in
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"$BASE") continue ;;
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"$BASE"/*) x="${x#$BASE/}" ;;
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./*) x="${x#./}" ;;
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esac
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# find target (d1)
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#
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if [ -L "$FILES/$x" ]; then
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d0="$(readlink "$FILES/$x")"
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d1="$(readlink -f "$FILES/$x")"
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[ "$d1" = "${d1#$FILES/}" ] || d1="$d0"
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elif [ ! -d "$FILES/$x" ]; then
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d1="$FILES/$x"
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else
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continue
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fi
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# link dir
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#
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d="${x%/*}"
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if [ "$d" = "$x" ]; then
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d=
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elif [ ! -d "$HOME/$d/" ]; then
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info "$d: creating dir"
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mkdir -p "$HOME/$d/"
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fi
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# link
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#
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if [ -L "$HOME/$x" ]; then
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# preexisting link ($d1)
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d0="$(readlink "$HOME/$x")"
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[ "$d0" != "$d1" ] || continue
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err "$x: relinking, was [$d0]"
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elif [ ! -e "$HOME/$x" ]; then
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# new
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info "$x: linking"
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elif [ -d "$HOME/$x" ]; then
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# preexisting dir
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err "$x: importing directory and linking [$d1]"
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if ! rmdir "$HOME/$x" 2> /dev/null; then
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rm "$FILES/$x"
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mv "$HOME/$x" "$FILES/$x"
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fi
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else
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# preexisting file
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info "$x: importing changes and linking [$d1]"
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rm "$FILES/$x"
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cp -a "$HOME/$x" "$FILES/$x"
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fi
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ln -snf "$d1" "$HOME/$x"
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done
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