update submodule

README.md

@@ -361,7 +361,7 @@ be executed.
 
 If used as a submodule, update it with
 ```bash
-$ git submodule update --recursive --remote
+$ git submodule foreach git pull origin master
 ```
 
 Through pypi:
@@ -577,10 +577,7 @@ If you want to keep it as a submodule, simply do the following
 $ cd <dotfiles-directory>
 
 ## get latest version of the submodule
-$ cd dotdrop/
-$ git checkout master
-$ git pull
-$ cd ../
+$ git submodule foreach git pull origin master
 
 ## update the bash script wrapper
 $ ./dotdrop/bootstrap.sh

dotdrop.sh

@@ -24,12 +24,7 @@ sub="dotdrop"
 # pivot
 cd "${cur}" || { echo "Folder \"${cur}\" doesn't exist, aborting." && exit; }
 # init/update the submodule
-if [ -e ${sub} ]; then
-  cd dotdrop
-  git checkout master
-  git pull
-  cd ..
-fi
+git submodule foreach git pull origin master
 # launch dotdrop
 PYTHONPATH=dotdrop python3 -m dotdrop.dotdrop --cfg="${cfg}" "${args[@]}"
 # pivot back

dotdrop/dotdrop.py

@@ -20,9 +20,7 @@ the way it needs to be called has slightly changed.
 If you want to keep it as a submodule (recommended), simply do the following:
 
 First get the latest version of dotdrop:
-    $ cd dotdrop
-    $ git checkout master
-    $ git pull
+    $ git submodule foreach git pull origin master
 And then re-run the bootstrap script to update \"dotdrop.sh\":
     $ ./dotdrop/bootstrap.sh