golang
diff --git a/‎message/pipeline/common.go
Lines changed: 48 additions & 0 deletions b/‎message/pipeline/common.go
Lines changed: 48 additions & 0 deletions
diff --git a/‎message/pipeline/doc.go
Lines changed: 53 additions & 0 deletions b/‎message/pipeline/doc.go
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@@ -0,0 +1,48 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"fmt"
+	"go/build"
+	"go/parser"
+
+	"golang.org/x/tools/go/loader"
+)
+
+const (
+	extractFile  = "extracted.gotext.json"
+	outFile      = "out.gotext.json"
+	gotextSuffix = ".gotext.json"
+)
+
+// NOTE: The command line tool already prefixes with "gotext:".
+var (
+	wrap = func(err error, msg string) error {
+		return fmt.Errorf("%s: %v", msg, err)
+	}
+	wrapf = func(err error, msg string, args ...interface{}) error {
+		return wrap(err, fmt.Sprintf(msg, args...))
+	}
+	errorf = fmt.Errorf
+)
+
+func loadPackages(conf *loader.Config, args []string) (*loader.Program, error) {
+	if len(args) == 0 {
+		args = []string{"."}
+	}
+
+	conf.Build = &build.Default
+	conf.ParserMode = parser.ParseComments
+
+	// Use the initial packages from the command line.
+	args, err := conf.FromArgs(args, false)
+	if err != nil {
+		return nil, wrap(err, "loading packages failed")
+	}
+
+	// Load, parse and type-check the whole program.
+	return conf.Load()
+}