113 lines
3.7 KiB
Bash
Executable File
113 lines
3.7 KiB
Bash
Executable File
#! /usr/bin/env bash
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set -e
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# Target directory (new structure with symlinks)
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DEST_DIR="${DEST_DIR:-${1}}"
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is_cmd() {
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type -p -- "${@}" 2> /dev/null 1> /dev/null
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}
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if is_cmd chezmoi && [[ -z "$RESET" && -z "$SRC_DIR" && -z "$DEST_DIR" ]]; then
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DEST_DIR="$(chezmoi data | jq -r '.chezmoi.sourceDir | split("/") | last')"
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fi
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# Source directory (existing structure with files)
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SRC_DIR=${SRC_DIR:-_src.posix}
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SCRIPT_NAME="${0##*/}"
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usage() {
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printf '%s\n' \
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'Assign symlinks acrosss chezmoi platform home-dirs' \
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'' \
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'Usage:' \
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" [RESET=reset] [FORCE=-f] [SRC_DIR=<alt src dir>] ${SCRIPT_NAME} [<destination_directory>]" \
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'' \
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'Notes: ' \
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' SRC_DIR assumes _src.posix if empty' \
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' If `chezmoi` state isn'"'"'t broken, the current chezmoihome dir will be used' \
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'' \
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' When RESET env var is "reset", <destination_directory> is mandatory, ' \
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' it will remove any symlink in that directory' \
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'' \
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'Examples:' \
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' # A complete reset' \
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' RESET=reset SRC_DIR=_src.all ./symclone.sh _src.posix' \
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' RESET=reset ./symclone.sh _home.macos' \
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'' \
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' # Alternative setup' \
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' RESET=reset SRC_DIR=_src.all ./symclone.sh _home.macos && ./symclone.sh' \
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'' \
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' # General refresh' \
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' ./symclone.sh' \
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''
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exit 1
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}
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# Check if both arguments are provided
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if [[ -z "$SRC_DIR" || -z "$DEST_DIR" ]]; then
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usage
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fi
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DEST_DIR="${DEST_DIR:?Must supply dest dir name}"
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# Ensure source directory exists
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if [[ ! -d "$SRC_DIR" ]]; then
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echo "Error: Source directory '$SRC_DIR' does not exist."
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exit 1
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fi
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# Create destination directory if it does not exist
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mkdir -p "$DEST_DIR"
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# Find all directories and recreate them in the destination
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find "$SRC_DIR" -mindepth 1 -type d | while read -r dir; do
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mkdir -p "$DEST_DIR/${dir#$SRC_DIR/}"
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done
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# Function to get relative path without realpath or python
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relpath() {
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local target=$1
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local base=$2
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local target_abs=$(cd "$(dirname "$target")" && pwd)/$(basename "$target")
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local base_abs=$(cd "$base" && pwd)
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local common_part="$base_abs"
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local back=""
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while [[ "${target_abs#$common_part}" == "$target_abs" ]]; do
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common_part=$(dirname "$common_part")
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back="../$back"
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done
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echo "${back}${target_abs#$common_part/}"
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}
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if [[ -n "$RESET" ]]; then
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[[ "$RESET" != 'reset' ]] \
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&& printf 'ERROR: RESET was set incorrectly, value %s is illeagal.\n\n' "$RESET" >&2 \
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&& usage
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printf "Removing all symlinks from %s destination..." "${DEST_DIR}" >&2
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find "${DEST_DIR}" -type l -delete
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printf "Done.\n" >&2
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fi
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# Find all non-dirs (files and symlinks) and create symbolic links in the destination
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find "$SRC_DIR" -not -type d | while read -r file; do
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# Determine the relative path for the symlink
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target_file="${file#$SRC_DIR/}"
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target_path="$DEST_DIR/${target_file}"
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remove_target="${target_path%/*}/remove_$(<<<"${target_file##*/}" sed -Ee 's/^(symlink|executable)_//; s/(\.tmpl)$//;')"
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src_relative_path=$(relpath "$file" "$(dirname "$DEST_DIR/$target_file")")
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# Create the symlink with relative path
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SKIP=
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[ -z "$SKIP" ] && [ -e "${remove_target}" ] && SKIP="remove entry found for: %s" || true
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[ -z "$SKIP" ] && [ -L "$target_path" ] && [ -z "$FORCE" ] && SKIP="can't force replace %s" || true
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[ -z "$SKIP" ] && [ -e "$target_path" ] && SKIP="%s exists" || true
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[ -n "$DBG" ] && [ -n "$SKIP" ] && printf "$SKIP\n" "$target_path" || true
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[ -n "$SKIP" ] || ln ${FORCE} -vs "$src_relative_path" "$target_path" || (set | grep -E '^(?:target|remove|src)_' >&2; false)
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done
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echo "${SCRIPT_NAME} for '$DEST_DIR' done." >&2
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