Add 'ops/' directory and sqlite_lint integration test

ops/sqlite_lint_test.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+# ------------------
+# This is a test script that checks that `sqlite_lint` subcommand works as expected.
+# ------------------
+
+
+set -e
+set -x
+
+PS4='+(${BASH_SOURCE}:${LINENO}): '
+cd "$(dirname ${BASH_SOURCE[0]})/.."
+
+# Compile `gas`
+program="/tmp/gas"
+go build -o $program ./cmd
+
+test_schema_dir="pkg/schema/lint/test_schemas"
+
+# Check all failure cases
+for test_schema in $test_schema_dir/failure-*; do
+    output=$($program sqlite_lint $test_schema) && {
+        echo "Expected test to fail"
+        exit 9
+    }
+
+    # Should print the name of the file being linted
+    if ! echo "$output" | grep -Fxq "Linting $test_schema"; then
+        echo "Expected 'Linting $test_schema' in output"
+        exit 10
+    fi
+done
+
+# Check success case
+success_schema="$test_schema_dir/success.sql"
+output=$($program sqlite_lint $success_schema) || {
+    echo "Expected test to succeed"
+    exit 9
+}
+# Should print the name of the file being linted
+if ! echo "$output" | grep -Fxq "Linting $success_schema"; then
+    echo "Expected 'Linting $success_schema' in output"
+    exit 10
+fi
+
+# Notify success in green
+echo -e "\033[32mAll tests passed.  Finished successfully.\033[0m"