bgpwtf/cccampix: draw the rest of the fucking owl

Change-Id: I49fd5906e69512e8f2d414f406edc0179522f225
diff --git a/go/mirko/BUILD.bazel b/go/mirko/BUILD.bazel
index 405987e..a771e96 100644
--- a/go/mirko/BUILD.bazel
+++ b/go/mirko/BUILD.bazel
@@ -5,7 +5,9 @@
     srcs = [
         "kubernetes.go",
         "mirko.go",
+        "sql.go",
         "sql_migrations.go",
+        "trace.go",
     ],
     importpath = "code.hackerspace.pl/hscloud/go/mirko",
     visibility = ["//visibility:public"],
diff --git a/go/mirko/sql.go b/go/mirko/sql.go
new file mode 100644
index 0000000..949d557
--- /dev/null
+++ b/go/mirko/sql.go
@@ -0,0 +1,35 @@
+package mirko
+
+import (
+	"context"
+	"database/sql"
+	"database/sql/driver"
+	"time"
+
+	"github.com/gchaincl/sqlhooks"
+	"golang.org/x/net/trace"
+)
+
+type sqlHooks struct{}
+
+func (h *sqlHooks) Before(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+	tr, ok := trace.FromContext(ctx)
+	if ok {
+		tr.LazyPrintf("SQL query: %s", query)
+		tr.LazyPrintf("SQL  args: %+v", args)
+	}
+	return context.WithValue(ctx, "begin", time.Now()), nil
+}
+
+func (h *sqlHooks) After(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+	begin := ctx.Value("begin").(time.Time)
+	tr, ok := trace.FromContext(ctx)
+	if ok {
+		tr.LazyPrintf("SQL  took: %s", time.Since(begin).String())
+	}
+	return ctx, nil
+}
+
+func TraceSQL(driver driver.Driver, wrapped string) {
+	sql.Register(wrapped, sqlhooks.Wrap(driver, &sqlHooks{}))
+}
diff --git a/go/mirko/trace.go b/go/mirko/trace.go
new file mode 100644
index 0000000..33b4352
--- /dev/null
+++ b/go/mirko/trace.go
@@ -0,0 +1,37 @@
+package mirko
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/golang/glog"
+	"golang.org/x/net/trace"
+)
+
+func TraceInfof(ctx context.Context, f string, args ...interface{}) {
+	tr, ok := trace.FromContext(ctx)
+	if !ok {
+		fmtd := fmt.Sprintf(f, args...)
+		glog.Info("[no trace] %v", fmtd)
+		return
+	}
+	tr.LazyPrintf(f, args...)
+}
+
+func TraceWarningf(ctx context.Context, f string, args ...interface{}) {
+	glog.Warningf(f, args...)
+
+	tr, ok := trace.FromContext(ctx)
+	if ok {
+		tr.LazyPrintf(f, args...)
+	}
+}
+
+func TraceErrorf(ctx context.Context, f string, args ...interface{}) {
+	glog.Errorf(f, args...)
+
+	tr, ok := trace.FromContext(ctx)
+	if ok {
+		tr.LazyPrintf(f, args...)
+	}
+}