feat: add "lockjson/write" function

Author: tyru

dsl/ops/func_lockjson_write.go

@@ -0,0 +1,46 @@
+package ops
+
+import (
+	"context"
+
+	"github.com/pkg/errors"
+	"github.com/vim-volt/volt/dsl/dslctx"
+	"github.com/vim-volt/volt/dsl/ops/util"
+	"github.com/vim-volt/volt/dsl/types"
+	"github.com/vim-volt/volt/lockjson"
+)
+
+func init() {
+	opsMap["lockjson/write"] = LockJSONWriteOp
+}
+
+type lockJSONWriteOp struct {
+	funcBase
+}
+
+// LockJSONWriteOp is "lockjson/write" operator
+var LockJSONWriteOp = &lockJSONWriteOp{funcBase("lockjson/write")}
+
+func (*lockJSONWriteOp) Bind(args ...types.Value) (types.Expr, error) {
+	if err := util.Signature().Check(args); err != nil {
+		return nil, err
+	}
+	retType := types.VoidType
+	return types.NewExpr(LockJSONWriteOp, args, retType), nil
+}
+
+func (*lockJSONWriteOp) InvertExpr(args []types.Value) (types.Value, error) {
+	return LockJSONWriteOp.Bind(args...)
+}
+
+func (*lockJSONWriteOp) EvalExpr(ctx context.Context, args []types.Value) (_ types.Value, rollback func(), result error) {
+	rollback = NoRollback
+
+	lockJSON := ctx.Value(dslctx.LockJSONKey).(*lockjson.LockJSON)
+	result = lockJSON.Write()
+	if result != nil {
+		result = errors.Wrap(result, "could not write to lock.json")
+	}
+
+	return
+}