Renamed the setup script.

scripts/setup.bash

@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+
+# config directory
+config_dir="$HOME/dotfiles/"
+
+mapping_file="$config_dir/MAPPING"
+
+# backup directory, files that would otherwise be overwritten go there
+backup_dir="$HOME/.dotfiles.bak/"
+
+# the following folders inside $config_dir will be inspected and the
+# contents symlinked:
+symlink_folders='bash git i3 vim zsh conky terminator x'
+
+MAPPING_SEPARATOR='::'
+
+path_combine()
+{
+    echo "$(dirname "$1")/$(basename "$1")/$(basename "$2")"
+}
+
+DEFAULT_ROOT="$HOME"
+# returns "" if no mapping necessary
+# format of the MAPPING file:
+# folder::root
+get_mapping()
+{
+    entry="$(grep -E "^$1$MAPPING_SEPARATOR.+$" "$mapping_file" | head -n1 | grep -Eo "$MAPPING_SEPARATOR.+$" | cut -c 3-)"
+    echo "$entry"
+}
+
+
+backup_dir="$backup_dir/$(date +%Y-%m-%dT%H:%M:%S)"
+
+# backup the old config files, symlinks will be skipped
+# then symlink the files in $config_dir into the home directory
+for folder in $symlink_folders ; do
+    mapping="$(get_mapping "$folder")"
+
+    source_folder="$(path_combine "$config_dir" "$folder")"
+    [[ "$(ls "$source_folder")" ]] || continue
+    for file in "$source_folder"/* ; do
+        if [[ -z "$mapping" ]]; then
+            destination="$(path_combine "$DEFAULT_ROOT" ".$(basename "$file")")"
+        else
+            destination="$(path_combine "$(path_combine "$HOME" "$mapping")" "$(basename "$file")")"
+        fi
+        if [[ -L "$destination" ]]; then
+            continue
+        elif [[ -e "$destination" ]]; then
+            backup_destination="$(path_combine "$backup_dir" "$(basename "$destination")")"
+            [[ -d "$backup_dir" ]] || mkdir -p "$backup_dir"
+            echo "mv \"$destination\" -> \"$backup_destination\""
+            mv "$destination" "$backup_destination"
+        fi
+
+        [[ -e "$destination" ]] && [[ "$(readlink "$destination")" == "$file" ]] && continue
+        echo "ln -sf \"$file\" -> \"$destination\""
+        ln -sf "$file" "$destination"
+    done
+done
+