Break dotfile option parsing functions into their own file

src/bin/dotify

@@ -37,6 +37,7 @@ source "../lib/trim.sh"
 # Internal functions
 #
 
+source "../lib/parse-dotfile-options.sh"
 source "../lib/internals.sh"
 
 #

src/lib/internals.sh

@@ -51,35 +51,6 @@ execute-dotfile() {
   cd "$cwd"
 }
 
-parse-dotfile-options() {
-  parse-dotfile-root_link-option
-  parse-dotfile-default_action-option
-}
-
-parse-dotfile-root_link-option() {
-  # Set default.
-  OPT_ROOT_LINK=".dotfiles"
-
-  while read line; do
-    if [[ "$line" == "root_link "* ]]; then
-      OPT_ROOT_LINK="$(trim "${line/#root_link /}")"
-      break
-    fi
-  done < "$DOTFILE"
-}
-
-parse-dotfile-default_action-option() {
-  # Set default.
-  OPT_DEFAULT_ACTION="link"
-
-  while read line; do
-    if [[ "$line" == "default_action "* ]]; then
-      OPT_DEFAULT_ACTION="$(trim "${line/#default_action /}")"
-      break
-    fi
-  done < "$DOTFILE"
-}
-
 parse-dotfile-line() {
   local line="$(trim "$1")"
   local dotfile="$DOTFILE"

src/lib/parse-dotfile-options.sh

@@ -0,0 +1,38 @@
+parse-dotfile-options() {
+  OPT_ROOT_LINK="$(parse-dotfile-root_link-option)"
+  OPT_DEFAULT_ACTION="$(parse-dotfile-default_action-option)"
+}
+
+parse-dotfile-root_link-option() {
+  local dotfile="$DOTFILE"
+  if [ -n "$1" ]; then dotfile="$1"; fi
+
+  # Set default.
+  local root_link=".dotfiles"
+
+  while read line; do
+    if [[ "$line" == "root_link "* ]]; then
+      root_link="$(trim "${line/#root_link /}")"
+      break
+    fi
+  done < "$dotfile"
+
+  echo "$root_link"
+}
+
+parse-dotfile-default_action-option() {
+  local dotfile="$DOTFILE"
+  if [ -n "$1" ]; then dotfile="$1"; fi
+
+  # Set default value.
+  default_action="link"
+
+  while read line; do
+    if [[ "$line" == "default_action "* ]]; then
+      default_action="$(trim "${line/#default_action /}")"
+      break
+    fi
+  done < "$dotfile"
+
+  echo "$default_action"
+}