Print the diff in scripts/schema_changed.sh

Signed-off-by: Rémy Coutable <remy@rymai.me>

.gitlab-ci.yml

@@ -507,7 +507,7 @@ db:check-schema-pg:
   <<: *db-migrate-reset
   <<: *use-pg
   script:
-    - source scripts/schema_changed.sh
+    - sh scripts/schema_changed.sh
 
 # Frontend-related jobs
 gitlab:assets:compile:

scripts/schema_changed.sh

-function schema_changed() {
-  if [[ ! -z `git diff --name-only -- db/schema.rb` ]]; then
-    echo "db/schema.rb after rake db:migrate:reset is different from one in the repository"
+#!/bin/sh
+
+schema_changed() {
+  if [ ! -z "$(git diff --name-only -- db/schema.rb)" ]; then
+    printf "db/schema.rb after rake db:migrate:reset is different from one in the repository"
+    printf "The diff is as follows:\n"
+    diff=$(git diff -p --binary -- db/schema.rb)
+    printf "%s" "$diff"
     exit 1
   else
-    echo "db/schema.rb after rake db:migrate:reset matches one in the repository"
+    printf "db/schema.rb after rake db:migrate:reset matches one in the repository"
   fi
 }