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app_files.go
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/
app_files.go
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package app_files
import (
"crypto/sha1"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"github.com/cloudfoundry/cli/cf/models"
cffileutils "github.com/cloudfoundry/cli/fileutils"
"github.com/cloudfoundry/gofileutils/fileutils"
)
type AppFiles interface {
AppFilesInDir(dir string) (appFiles []models.AppFileFields, err error)
CopyFiles(appFiles []models.AppFileFields, fromDir, toDir string) (err error)
CountFiles(directory string) int64
WalkAppFiles(dir string, onEachFile func(string, string) error) (err error)
}
type ApplicationFiles struct{}
func (appfiles ApplicationFiles) AppFilesInDir(dir string) (appFiles []models.AppFileFields, err error) {
dir, err = filepath.Abs(dir)
if err != nil {
return
}
err = appfiles.WalkAppFiles(dir, func(fileName string, fullPath string) (err error) {
fileInfo, err := os.Lstat(fullPath)
if err != nil {
return
}
appFile := models.AppFileFields{
Path: filepath.ToSlash(fileName),
Size: fileInfo.Size(),
}
if fileInfo.IsDir() {
appFile.Sha1 = "0"
appFile.Size = 0
} else {
hash := sha1.New()
err = fileutils.CopyPathToWriter(fullPath, hash)
if err != nil {
return
}
appFile.Sha1 = fmt.Sprintf("%x", hash.Sum(nil))
}
appFiles = append(appFiles, appFile)
return
})
return
}
func (appfiles ApplicationFiles) CopyFiles(appFiles []models.AppFileFields, fromDir, toDir string) (err error) {
if err != nil {
return
}
for _, file := range appFiles {
fromPath := filepath.Join(fromDir, file.Path)
toPath := filepath.Join(toDir, file.Path)
err = copyPathToPath(fromPath, toPath)
if err != nil {
return
}
}
return
}
func (appfiles ApplicationFiles) CountFiles(directory string) int64 {
var count int64
appfiles.WalkAppFiles(directory, func(_, _ string) error {
count++
return nil
})
return count
}
func (appfiles ApplicationFiles) WalkAppFiles(dir string, onEachFile func(string, string) error) (err error) {
cfIgnore := loadIgnoreFile(dir)
walkFunc := func(fullPath string, f os.FileInfo, inErr error) (err error) {
err = inErr
if err != nil {
return
}
if fullPath == dir {
return
}
if !cffileutils.IsRegular(f) && !f.IsDir() {
return
}
fileRelativePath, _ := filepath.Rel(dir, fullPath)
fileRelativeUnixPath := filepath.ToSlash(fileRelativePath)
if !cfIgnore.FileShouldBeIgnored(fileRelativeUnixPath) {
err = onEachFile(fileRelativePath, fullPath)
}
return
}
err = filepath.Walk(dir, walkFunc)
return
}
func copyPathToPath(fromPath, toPath string) (err error) {
srcFileInfo, err := os.Stat(fromPath)
if err != nil {
return
}
if srcFileInfo.IsDir() {
err = os.MkdirAll(toPath, srcFileInfo.Mode())
if err != nil {
return
}
} else {
var dst *os.File
dst, err = fileutils.Create(toPath)
if err != nil {
return
}
defer dst.Close()
dst.Chmod(srcFileInfo.Mode())
err = fileutils.CopyPathToWriter(fromPath, dst)
}
return err
}
func loadIgnoreFile(dir string) CfIgnore {
fileContents, err := ioutil.ReadFile(filepath.Join(dir, ".cfignore"))
if err == nil {
return NewCfIgnore(string(fileContents))
} else {
return NewCfIgnore("")
}
}