enable shellcheck

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I3b383bc2649100e996cc9ed715b110855ab405f3
diff --git a/.shellcheck b/.shellcheck
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/.shellcheck
diff --git a/gen/regenerate-meson b/gen/regenerate-meson
index 6c32c46..56bc2c6 100755
--- a/gen/regenerate-meson
+++ b/gen/regenerate-meson
@@ -19,5 +19,5 @@
 
 $SDBUSPP_GEN_MESON \
     --command meson \
-    --directory $REPO_ROOT \
-    --output $REPO_ROOT/gen
+    --directory "$REPO_ROOT" \
+    --output "$REPO_ROOT/gen"
diff --git a/gen/run-ci b/gen/run-ci
index 4a724ff..839b182 100755
--- a/gen/run-ci
+++ b/gen/run-ci
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-$(git rev-parse --show-toplevel)/gen/regenerate-meson
+"$(git rev-parse --show-toplevel)/gen/regenerate-meson"
 
 GIT_STATUS="$(git status --porcelain --untracked-files)"
 if [ -n "$GIT_STATUS" ]; then