JJ: Description from the destination commit:

cp sql/ from GNU Taler exchange

JJ: Description from source commit:
add sql Makefile

.gitignore

@@ -1 +1,3 @@
 _build
+include/sql/*.sql
+include/sql/*.sql.in

include/sql/Makefile

@@ -0,0 +1,87 @@
+# TODO
+#   - make test
+#   - PostgreSQL configuration (host, port, username, password, ..)
+#   - gitsubmodules?
+
+# usage:
+#   `make create_database`
+#      create a `taler-exchange` database
+#   `make fetch_source`
+#      fetch all *.sql and *.sql.in files from GNU Taler exchange repository (latest commit)
+#      file `exchangedb.version` contains hash of latest commit that changed
+#      something in exchange/src/exchangedb
+#   `make init`
+#      initialize taler-exchange database (create tables, ...)
+#      `taler-exchange` database must already be created
+fetch_source:
+	git clone https://git.taler.net/exchange.git/ ./exchange
+	cp ./exchange/src/exchangedb/*.sql ./
+	cp ./exchange/src/exchangedb/*.sql.in ./
+	git -C ./exchange log -n 1 --pretty=format:%H ./src/exchangedb > exchangedb.version
+	rm -rf ./exchange
+
+clean_source:
+	rm -f ./*.sql
+	rm -f ./*.sql.in
+
+dbname := taler-exchange
+sql_INIT := init.sql
+sql_DROP := drop.sql
+
+sql_DATA := \
+  versioning.sql \
+  exchange-0001.sql \
+  exchange-0002.sql \
+  exchange-0003.sql \
+  exchange-0004.sql \
+  exchange-0005.sql \
+  procedures.sql
+
+procedures.sql: procedures.sql.in exchange_do_*.sql exchange_statistics_*.sql exchange_trigger_*.sql
+	chmod +w $@ 2> /dev/null || true
+	gcc -E -P -undef - < procedures.sql.in 2>/dev/null | sed -e "s/--.*//" | awk 'NF' - >$@
+	chmod ugo-w $@
+
+exchange-0002.sql: exchange-0002.sql.in 0002-*.sql
+	chmod +w $@ 2> /dev/null || true
+	gcc -E -P -undef - < exchange-0002.sql.in 2>/dev/null | sed -e "s/--.*//" | awk 'NF' - >$@
+	chmod ugo-w $@
+
+exchange-0003.sql: exchange-0003.sql.in 0003-*.sql
+	chmod +w $@ 2> /dev/null || true
+	gcc -E -P -undef - < exchange-0003.sql.in 2>/dev/null | sed -e "s/--.*//" | awk 'NF' - >$@
+	chmod ugo-w $@
+
+exchange-0004.sql: exchange-0004.sql.in 0004-*.sql
+	chmod +w $@ 2> /dev/null || true
+	gcc -E -P -undef - < exchange-0004.sql.in 2>/dev/null | sed -e "s/--.*//" | awk 'NF' - >$@
+	chmod ugo-w $@
+
+gen_sql: procedures.sql exchange-0002.sql exchange-0003.sql exchange-0004.sql
+
+.DEFAULT_GOAL := gen_init
+gen_init: gen_sql $(sql_DATA)
+	@printf "" > $(sql_INIT)
+	@cat $(sql_DATA) >> $(sql_INIT)
+
+clean:
+	rm -f procedures.sql
+	rm -f exchange-0002.sql
+	rm -f exchange-0003.sql
+	rm -f exchange-0004.sql
+	rm $(sql_INIT)
+
+# "NOTICE:  function xxx() does not exist, skipping" are normal and expected
+init: gen_init
+	psql --host=localhost --port=5432 --username=mte --password --dbname=$(dbname) --file=$(sql_INIT)
+
+drop:
+	psql --host=localhost --port=5432 --username=mte --password --dbname=$(dbname) --file=$(sql_DROP)
+
+create_database:
+	createdb --host=localhost --port=5432 --username=mte --password $(dbname)
+
+drop_database:
+	dropdb --host=localhost --port=5432 --username=mte --password $(dbname)
+
+reset_database: drop_database create_database

include/sql/exchangedb.version

@@ -0,0 +1 @@
+2305679765fb14b82512b5140ae113d9633109c8

src/database.ml

@@ -23,3 +23,5 @@ let test req server _ =
       let str = Fmt.str "Database error: %a." Caqti_error.pp err in
       let* () = Vif.Response.with_string req str in
       Vif.Response.respond `Internal_server_error
+
+let init = test

src/mte.ml

@@ -113,7 +113,8 @@ let routes =
     get (rel /?? nil) --> hello; get (rel / "terms" /?? nil) --> Static.terms;
     get (rel / "privacy" /?? nil) --> Static.privacy;
     get (rel / "management" / "keys" /?? nil) --> Management.keys;
-    get (rel / "db" /?? nil) --> Database.test;
+    get (rel / "db_test" /?? nil) --> Database.test;
+    get (rel / "db_init" /?? nil) --> Database.init;
   ]
 
 let () =