Added possibility to chech for filechanges on init

Allow multiple files to be checked by defining an array

README.md

@@ -41,6 +41,10 @@ Returns 0 if an init script exists.
 #### Update all repositories and remove the init script
  zgen update
 
+#### Automatically check for filechanges and regenerate zinit
+You can set the environment variable ZGEN_RESET_ON_CHANGE. These files will be checked and if a change is detected zgen reset is called.
+ ZGEN_RESET_ON_CHANGE=(${HOME}/.zshrc ${HOME}/.zshrc.local)
+
 ### Example .zshrc
 
 ```zsh

zgen.zsh

@@ -157,6 +157,22 @@ zgen-save() {
  echo "#" >> "${ZGEN_INIT}"
  echo "fpath=(${(q)ZGEN_COMPLETIONS[@]} \${fpath})" >> "${ZGEN_INIT}"
 
+ # check for file changes
+ if [[ ! -z ${ZGEN_RESET_ON_CHANGE} ]]; then
+ echo >> "${ZGEN_INIT}"
+ echo "# check for file changes" >> "${ZGEN_INIT}"
+ for file in ${ZGEN_RESET_ON_CHANGE}; do
+ CHANGESHA=`shasum -a 256 ${file}`
+ echo "if [[ \"\`shasum -a 256 ${file}\`\" != \"$CHANGESHA\" ]]; then" >> "${ZGEN_INIT}"
+ echo " echo Changed file ${file}, resetting zgen" >> "${ZGEN_INIT}"
+ echo " zgen reset" >> "${ZGEN_INIT}"
+ echo -n "el" >> "${ZGEN_INIT}"
+ done
+ echo "se " >> "${ZGEN_INIT}"
+ echo " ;" >> "${ZGEN_INIT}"
+ echo "fi" >> "${ZGEN_INIT}"
+ fi
+
  zgen-apply --verbose
 }