git-stash-test.sh

#!/bin/bash

mkdir git-stash-test
cd git-stash-test
mkdir component
mkdir common
touch component/a.scss component/b.scss common/c.scss
git init .
git add .
git commit -m "Added files"
echo "modifications for a" > component/a.scss
touch common/untracked.scss
git status -s
git stash push -m "stashing scss" -- *.scss
git status -s
git stash pop

output.txt

Initialized empty Git repository in /Users/keinajar/git-test/git-stash-test/.git/
[master (root-commit) d4e31ce] Added files
 3 files changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 common/c.scss
 create mode 100644 component/a.scss
 create mode 100644 component/b.scss
 M component/a.scss
?? common/untracked.scss
Saved working directory and index state On master: stashing scss
On branch master
Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

	modified:   component/a.scss

no changes added to commit (use "git add" and/or "git commit -a")
Dropped refs/stash@{0} (e47f5f26ea805e7a2245f90d7502d56a15707fe6)

Relates to SO question: https://stackoverflow.com/q/48339061/216129