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godeps: Add fileutils dependency 

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>
This commit is contained in:
Mrunal Patel 2016-05-26 12:33:24 -07:00
parent 3597b7b743
commit 799911a0db
5 changed files with 410 additions and 0 deletions
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Godeps/Godeps.json generated
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{
"ImportPath": "github.com/vishvananda/netlink",
"Rev": "1e2e08e8a2dcdacaae3f14ac44c5cfa31361f270"
},
{
"ImportPath": "github.com/mrunalp/fileutils",
"Rev": "ed869b029674c0e9ce4c0dfa781405c2d9946d08"
}
]
}

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Godeps/_workspace/src/github.com/mrunalp/fileutils/LICENSE generated vendored Normal file
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Godeps/_workspace/src/github.com/mrunalp/fileutils/README.md generated vendored Normal file
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# fileutils
Collection of utilities for file manipulation in golang
The library is based on docker pkg/archive but does copies instead of handling archive formats.

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Godeps/_workspace/src/github.com/mrunalp/fileutils/fileutils.go generated vendored Normal file
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package fileutils
import (
"fmt"
"io"
"os"
"path/filepath"
"syscall"
)
// CopyFile copies the file at source to dest
func CopyFile(source string, dest string) error {
si, err := os.Lstat(source)
if err != nil {
return err
}
st, ok := si.Sys().(*syscall.Stat_t)
if !ok {
return fmt.Errorf("could not convert to syscall.Stat_t")
}
uid := int(st.Uid)
gid := int(st.Gid)
// Handle symlinks
if si.Mode()&os.ModeSymlink != 0 {
target, err := os.Readlink(source)
if err != nil {
return err
}
if err := os.Symlink(target, dest); err != nil {
return err
}
}
// Handle device files
if st.Mode&syscall.S_IFMT == syscall.S_IFBLK || st.Mode&syscall.S_IFMT == syscall.S_IFCHR {
devMajor := int64(major(uint64(st.Rdev)))
devMinor := int64(minor(uint64(st.Rdev)))
mode := uint32(si.Mode() & 07777)
if st.Mode&syscall.S_IFMT == syscall.S_IFBLK {
mode |= syscall.S_IFBLK
}
if st.Mode&syscall.S_IFMT == syscall.S_IFCHR {
mode |= syscall.S_IFCHR
}
if err := syscall.Mknod(dest, mode, int(mkdev(devMajor, devMinor))); err != nil {
return err
}
}
// Handle regular files
if si.Mode().IsRegular() {
sf, err := os.Open(source)
if err != nil {
return err
}
defer sf.Close()
df, err := os.Create(dest)
if err != nil {
return err
}
defer df.Close()
_, err = io.Copy(df, sf)
if err != nil {
return err
}
}
// Chown the file
if err := os.Lchown(dest, uid, gid); err != nil {
return err
}
// Chmod the file
if !(si.Mode()&os.ModeSymlink == os.ModeSymlink) {
if err := os.Chmod(dest, si.Mode()); err != nil {
return err
}
}
return nil
}
// CopyDirectory copies the files under the source directory
// to dest directory. The dest directory is created if it
// does not exist.
func CopyDirectory(source string, dest string) error {
fi, err := os.Stat(source)
if err != nil {
return err
}
// Get owner.
st, ok := fi.Sys().(*syscall.Stat_t)
if !ok {
return fmt.Errorf("could not convert to syscall.Stat_t")
}
// We have to pick an owner here anyway.
if err := MkdirAllNewAs(dest, fi.Mode(), int(st.Uid), int(st.Gid)); err != nil {
return err
}
return filepath.Walk(source, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
// Get the relative path
relPath, err := filepath.Rel(source, path)
if err != nil {
return nil
}
if info.IsDir() {
// Skip the source directory.
if path != source {
// Get the owner.
st, ok := info.Sys().(*syscall.Stat_t)
if !ok {
return fmt.Errorf("could not convert to syscall.Stat_t")
}
uid := int(st.Uid)
gid := int(st.Gid)
if err := os.Mkdir(filepath.Join(dest, relPath), info.Mode()); err != nil {
return err
}
if err := os.Lchown(filepath.Join(dest, relPath), uid, gid); err != nil {
return err
}
}
return nil
}
// Copy the file.
if err := CopyFile(path, filepath.Join(dest, relPath)); err != nil {
return err
}
return nil
})
}
func major(device uint64) uint64 {
return (device >> 8) & 0xfff
}
func minor(device uint64) uint64 {
return (device & 0xff) | ((device >> 12) & 0xfff00)
}
func mkdev(major int64, minor int64) uint32 {
return uint32(((minor & 0xfff00) << 12) | ((major & 0xfff) << 8) | (minor & 0xff))
}

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Godeps/_workspace/src/github.com/mrunalp/fileutils/idtools.go generated vendored Normal file
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package fileutils
import (
"os"
"path/filepath"
)
// MkdirAllNewAs creates a directory (include any along the path) and then modifies
// ownership ONLY of newly created directories to the requested uid/gid. If the
// directories along the path exist, no change of ownership will be performed
func MkdirAllNewAs(path string, mode os.FileMode, ownerUID, ownerGID int) error {
// make an array containing the original path asked for, plus (for mkAll == true)
// all path components leading up to the complete path that don't exist before we MkdirAll
// so that we can chown all of them properly at the end. If chownExisting is false, we won't
// chown the full directory path if it exists
var paths []string
if _, err := os.Stat(path); err != nil && os.IsNotExist(err) {
paths = []string{path}
} else if err == nil {
// nothing to do; directory path fully exists already
return nil
}
// walk back to "/" looking for directories which do not exist
// and add them to the paths array for chown after creation
dirPath := path
for {
dirPath = filepath.Dir(dirPath)
if dirPath == "/" {
break
}
if _, err := os.Stat(dirPath); err != nil && os.IsNotExist(err) {
paths = append(paths, dirPath)
}
}
if err := os.MkdirAll(path, mode); err != nil && !os.IsExist(err) {
return err
}
// even if it existed, we will chown the requested path + any subpaths that
// didn't exist when we called MkdirAll
for _, pathComponent := range paths {
if err := os.Chown(pathComponent, ownerUID, ownerGID); err != nil {
return err
}
}
return nil
}