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package main
import (
"fmt"
"go/build"
"io/ioutil"
"os"
"path"
"path/filepath"
"strings"
"github.com/pkg/errors"
)
const (
pkgGocheck = "github.com/go-check/check"
pkgGopkgGocheck = "gopkg.in/check.v1"
)
var allTestingTPkgs = append(
allTestifyPks,
pkgGocheck,
pkgGopkgGocheck,
)
func newFakeImporter() (*fakeImporter, error) {
tmpDir, err := ioutil.TempDir("", "gty-migrate-from-testify")
err = errors.Wrapf(err, "failed to create temporary directory")
return &fakeImporter{tmpDir: tmpDir}, err
}
type fakeImporter struct {
tmpDir string
}
func (f *fakeImporter) Close() error {
return os.RemoveAll(f.tmpDir)
}
func (f *fakeImporter) Import(
ctx *build.Context,
path string,
dir string,
mode build.ImportMode,
) (*build.Package, error) {
pkg, err := ctx.Import(path, dir, mode)
if err == nil {
return pkg, err
}
for _, pkgName := range allTestingTPkgs {
if pkgName == path {
return importStubPackage(f.tmpDir, pkgName)
}
}
return pkg, err
}
func importStubPackage(tmpDir string, importPath string) (*build.Package, error) {
pkgName := strings.TrimSuffix(path.Base(importPath), ".v1")
pkgFilePath := filepath.Join(tmpDir, pkgName)
if err := os.MkdirAll(pkgFilePath, 0755); err != nil {
return nil, errors.Wrapf(err, "failed to create stub package directory")
}
const filename = "fixture.go"
if err := writeStubFile(filepath.Join(pkgFilePath, filename), pkgName); err != nil {
return nil, errors.Wrapf(err, "failed to write stub file")
}
return &build.Package{
Dir: pkgFilePath,
Name: pkgName,
ImportPath: importPath,
GoFiles: []string{filename},
}, nil
}
func writeStubFile(path string, pkgName string) error {
content := []byte(fmt.Sprintf(stubFixtureContent, pkgName))
return ioutil.WriteFile(path, content, 0644)
}
const stubFixtureContent = `
package %s
type TestingT interface {
Errorf(format string, args ...interface{})
FailNow()
}
func New(t TestingT) *Assertions {
return &Assertions{}
}
type Assertions struct {}
type C struct{}
`
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