common.go

Documentation: golang.org/x/text/cmd/gotext

     1  // Copyright 2017 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package main
     6  
     7  import (
     8  	"fmt"
     9  	"go/build"
    10  	"go/parser"
    11  
    12  	"golang.org/x/tools/go/loader"
    13  )
    14  
    15  const (
    16  	extractFile  = "extracted.gotext.json"
    17  	outFile      = "out.gotext.json"
    18  	gotextSuffix = ".gotext.json"
    19  )
    20  
    21  // NOTE: The command line tool already prefixes with "gotext:".
    22  var (
    23  	wrap = func(err error, msg string) error {
    24  		if err == nil {
    25  			return nil
    26  		}
    27  		return fmt.Errorf("%s: %v", msg, err)
    28  	}
    29  	errorf = fmt.Errorf
    30  )
    31  
    32  // TODO: still used. Remove when possible.
    33  func loadPackages(conf *loader.Config, args []string) (*loader.Program, error) {
    34  	if len(args) == 0 {
    35  		args = []string{"."}
    36  	}
    37  
    38  	conf.Build = &build.Default
    39  	conf.ParserMode = parser.ParseComments
    40  
    41  	// Use the initial packages from the command line.
    42  	args, err := conf.FromArgs(args, false)
    43  	if err != nil {
    44  		return nil, wrap(err, "loading packages failed")
    45  	}
    46  
    47  	// Load, parse and type-check the whole program.
    48  	return conf.Load()
    49  }
    50
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