bashrc: Added an autosource function that allows us to source other files similar to how you would import python modules

.bash_functions/bool_eval.sh

@@ -0,0 +1,28 @@
+# Basic safe boolean evaluation. See this Gist for details:
+# https://gist.github.com/gliech/184dc7566821442202f21dfe15e2b7ff
+function truthy {
+  if [[ "${1,,}" == @(y|yes|on|true|1) ]]; then
+    return 0
+  fi
+  return 1
+}
+
+function falsy {
+  if [[ "${1,,}" == @(n|no|off|false|0) ]]; then
+    return 0
+  fi
+  return 1
+}
+
+function true_false_default {
+  case "${1,,}" in
+    y | yes | on | true | 1)
+      return 0 ;;
+    n | no | off | false | 0)
+      return 1 ;;
+  esac
+  shift
+  eval "$@"
+  return 1
+}
+

.bashrc

@@ -21,43 +21,18 @@ if (( BASH_VERSINFO[0] < 4 )); then
   return 1
 fi
 
-# Basic safe boolean evaluation. See this Gist for details:
-# https://gist.github.com/gliech/184dc7566821442202f21dfe15e2b7ff
-function truthy {
-  if [[ "${1,,}" == @(y|yes|on|true|1) ]]; then
-    return 0
-  fi
-  return 1
-}
+# Determine if the rest of the configuration should be loaded. DOTFILES_ACTIVE
+# is a environment variable that can be set in ~/.environment.d/dotfiles.env
+if [[ "${DOTFILES_ACTIVE,,}" == @(y|yes|on|true|1) ]]; then
 
-function falsy {
-  if [[ "${1,,}" == @(n|no|off|false|0) ]]; then
-    return 0
-  fi
-  return 1
-}
-
-function true_false_default {
-  case "${1,,}" in
-    y | yes | on | true | 1)
-      return 0 ;;
-    n | no | off | false | 0)
-      return 1 ;;
-  esac
-  shift
-  eval "$@"
-  return 1
-}
-
-export -f truthy falsy true_false_default
-
-# Now that we have the bare essentials, determine if the rest of the configura-
-# tion should be loaded. DOTFILES_ACTIVE is a environment variable that can be
-# set in ~/.environment.d/dotfiles.env
-if truthy $DOTFILES_ACTIVE; then
+  # Load a function that allows us to import other function definitions from
+  # the BASH_FUNC_PATH without providing their exact location and export it
+  . "$DOTFILES_DIR/bash_functions/autosource.sh"
+  export -f autosource
 
   # Load utilty functions that may be used by other configurations
-  . "$DOTFILES_DIR/bash_functions.sh"
+  autosource bool_eval
+  autosource dot_utility
 
   # Load the rest of the bash configs in ~/.basrc.d
   for file in ~/.bashrc.d/*.sh; do

.dotfiles/bash_functions/autosource.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+function autosource {
+  # Test if 1 argument was given
+  if (( $# == 0 )); then
+    echo "autosource: basename of a file in BASH_FUNC_PATH required"
+    echo "autosource: usage: autosource basename [arguments]"
+    return 1
+  fi
+
+  # Split the BASH_FUNC_PATH into an array of directory names
+  IFS=: read -ra bash_function_dirs <<< "${BASH_FUNC_PATH}"
+
+  # Look for a .sh file with the basename given as first argument in each direc-
+  # tory in each directory in turn
+  for bash_function_dir in "${bash_function_dirs[@]}"; do
+    if [[ -r "${bash_function_dir}/${1}.sh" ]]; then
+
+      # If we find a matching file, source it and skip the rest of this function
+      . "${bash_function_dir}/${1}.sh" ${@:2}
+      return
+    fi
+  done
+
+  # If the loop completes no matching file is in BASH_FUNC_PATH
+  echo "autosource: no ${1} in (${BASH_FUNC_PATH})"
+  return 1
+}

.environment.d/dotfiles.env

@@ -1,4 +1,4 @@
 DOTFILES_ACTIVE=true
 DOTFILES_DIR="${HOME}/.dotfiles"
 DOTFILES_GITDIR="${HOME}/.dotgit"
-
+BASH_FUNC_PATH="${HOME}/.bash_functions:${DOTFILES_DIR}/bash_functions"