pull in xattr archive/tar from upstream

This commit is contained in:
Adam Miller 2014-02-19 10:31:14 -06:00
parent 77cba216ba
commit 1318683961
5 changed files with 218 additions and 14 deletions

1
.gitignore vendored
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@ -1,3 +1,4 @@
/go1.1.1.src.tar.gz
/go1.1.2.src.tar.gz
/go1.2.src.tar.gz
/golang-19087:a15f344a9efa-xattrs.tar

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@ -0,0 +1,197 @@
# HG changeset patch
# User Alexander Larsson <alexander.larsson@gmail.com>
# Date 1392282510 -39600
# Node ID a15f344a9efa35ef168c8feaa92a15a1cdc93db5
# Parent 1a32fe60e0798d82bbff6c945001c7f0ba8de5ea
archive/tar: support extended attributes
This adds support for archives with the SCHILY.xattr field in the
pax header. This is what gnu tar and star generate.
Fixes issue 7154.
LGTM=dsymonds
R=golang-codereviews, gobot, dsymonds
CC=golang-codereviews
https://codereview.appspot.com/54570043
Committer: David Symonds <dsymonds@golang.org>
diff -r 1a32fe60e079 -r a15f344a9efa src/pkg/archive/tar/common.go
--- a/src/pkg/archive/tar/common.go Thu Feb 13 03:09:03 2014 -0500
+++ b/src/pkg/archive/tar/common.go Thu Feb 13 20:08:30 2014 +1100
@@ -57,6 +57,7 @@
Devminor int64 // minor number of character or block device
AccessTime time.Time // access time
ChangeTime time.Time // status change time
+ Xattrs map[string]string
}
// File name constants from the tar spec.
@@ -189,6 +190,7 @@
paxSize = "size"
paxUid = "uid"
paxUname = "uname"
+ paxXattr = "SCHILY.xattr."
paxNone = ""
)
diff -r 1a32fe60e079 -r a15f344a9efa src/pkg/archive/tar/reader.go
--- a/src/pkg/archive/tar/reader.go Thu Feb 13 03:09:03 2014 -0500
+++ b/src/pkg/archive/tar/reader.go Thu Feb 13 20:08:30 2014 +1100
@@ -139,8 +139,14 @@
return err
}
hdr.Size = int64(size)
+ default:
+ if strings.HasPrefix(k, paxXattr) {
+ if hdr.Xattrs == nil {
+ hdr.Xattrs = make(map[string]string)
+ }
+ hdr.Xattrs[k[len(paxXattr):]] = v
+ }
}
-
}
return nil
}
diff -r 1a32fe60e079 -r a15f344a9efa src/pkg/archive/tar/reader_test.go
--- a/src/pkg/archive/tar/reader_test.go Thu Feb 13 03:09:03 2014 -0500
+++ b/src/pkg/archive/tar/reader_test.go Thu Feb 13 20:08:30 2014 +1100
@@ -161,6 +161,46 @@
},
},
},
+ {
+ file: "testdata/xattrs.tar",
+ headers: []*Header{
+ {
+ Name: "small.txt",
+ Mode: 0644,
+ Uid: 1000,
+ Gid: 10,
+ Size: 5,
+ ModTime: time.Unix(1386065770, 448252320),
+ Typeflag: '0',
+ Uname: "alex",
+ Gname: "wheel",
+ AccessTime: time.Unix(1389782991, 419875220),
+ ChangeTime: time.Unix(1389782956, 794414986),
+ Xattrs: map[string]string{
+ "user.key": "value",
+ "user.key2": "value2",
+ // Interestingly, selinux encodes the terminating null inside the xattr
+ "security.selinux": "unconfined_u:object_r:default_t:s0\x00",
+ },
+ },
+ {
+ Name: "small2.txt",
+ Mode: 0644,
+ Uid: 1000,
+ Gid: 10,
+ Size: 11,
+ ModTime: time.Unix(1386065770, 449252304),
+ Typeflag: '0',
+ Uname: "alex",
+ Gname: "wheel",
+ AccessTime: time.Unix(1389782991, 419875220),
+ ChangeTime: time.Unix(1386065770, 449252304),
+ Xattrs: map[string]string{
+ "security.selinux": "unconfined_u:object_r:default_t:s0\x00",
+ },
+ },
+ },
+ },
}
func TestReader(t *testing.T) {
@@ -180,7 +220,7 @@
f.Close()
continue testLoop
}
- if *hdr != *header {
+ if !reflect.DeepEqual(*hdr, *header) {
t.Errorf("test %d, entry %d: Incorrect header:\nhave %+v\nwant %+v",
i, j, *hdr, *header)
}
@@ -253,7 +293,7 @@
}
// check the header
- if *hdr != *headers[nread] {
+ if !reflect.DeepEqual(*hdr, *headers[nread]) {
t.Errorf("Incorrect header:\nhave %+v\nwant %+v",
*hdr, headers[nread])
}
diff -r 1a32fe60e079 -r a15f344a9efa src/pkg/archive/tar/writer.go
--- a/src/pkg/archive/tar/writer.go Thu Feb 13 03:09:03 2014 -0500
+++ b/src/pkg/archive/tar/writer.go Thu Feb 13 20:08:30 2014 +1100
@@ -236,6 +236,12 @@
return tw.err
}
+ if allowPax {
+ for k, v := range hdr.Xattrs {
+ paxHeaders[paxXattr+k] = v
+ }
+ }
+
if len(paxHeaders) > 0 {
if !allowPax {
return errInvalidHeader
diff -r 1a32fe60e079 -r a15f344a9efa src/pkg/archive/tar/writer_test.go
--- a/src/pkg/archive/tar/writer_test.go Thu Feb 13 03:09:03 2014 -0500
+++ b/src/pkg/archive/tar/writer_test.go Thu Feb 13 20:08:30 2014 +1100
@@ -10,6 +10,7 @@
"io"
"io/ioutil"
"os"
+ "reflect"
"strings"
"testing"
"testing/iotest"
@@ -338,6 +339,45 @@
}
}
+func TestPaxXattrs(t *testing.T) {
+ xattrs := map[string]string{
+ "user.key": "value",
+ }
+
+ // Create an archive with an xattr
+ fileinfo, err := os.Stat("testdata/small.txt")
+ if err != nil {
+ t.Fatal(err)
+ }
+ hdr, err := FileInfoHeader(fileinfo, "")
+ if err != nil {
+ t.Fatalf("os.Stat: %v", err)
+ }
+ contents := "Kilts"
+ hdr.Xattrs = xattrs
+ var buf bytes.Buffer
+ writer := NewWriter(&buf)
+ if err := writer.WriteHeader(hdr); err != nil {
+ t.Fatal(err)
+ }
+ if _, err = writer.Write([]byte(contents)); err != nil {
+ t.Fatal(err)
+ }
+ if err := writer.Close(); err != nil {
+ t.Fatal(err)
+ }
+ // Test that we can get the xattrs back out of the archive.
+ reader := NewReader(&buf)
+ hdr, err = reader.Next()
+ if err != nil {
+ t.Fatal(err)
+ }
+ if !reflect.DeepEqual(hdr.Xattrs, xattrs) {
+ t.Fatalf("xattrs did not survive round trip: got %+v, want %+v",
+ hdr.Xattrs, xattrs)
+ }
+}
+
func TestPAXHeader(t *testing.T) {
medName := strings.Repeat("CD", 50)
longName := strings.Repeat("AB", 100)

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@ -1,13 +0,0 @@
Index: go/src/pkg/os/os_test.go
===================================================================
--- go.orig/src/pkg/os/os_test.go
+++ go/src/pkg/os/os_test.go
@@ -842,7 +842,7 @@ func run(t *testing.T, cmd []string) str
if err != nil {
t.Fatal(err)
}
- p, err := StartProcess("/bin/hostname", []string{"hostname"}, &ProcAttr{Files: []*File{nil, w, Stderr}})
+ p, err := StartProcess("/usr/bin/hostname", []string{"hostname"}, &ProcAttr{Files: []*File{nil, w, Stderr}})
if err != nil {
t.Fatal(err)
}

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@ -25,7 +25,7 @@
Name: golang
Version: 1.2
Release: 5%{?dist}
Release: 6%{?dist}
Summary: The Go Programming Language
License: BSD
@ -61,6 +61,11 @@ Patch2: golang-1.2-remove-ECC-p224.patch
# http://code.google.com/p/go/issues/detail?id=6522
Patch3: ./golang-1.2-skipCpuProfileTest.patch
# Pull in new archive/tar upstream patch to support xattrs for
# docker-0.8.1
# https://code.google.com/p/go/source/detail?r=a15f344a9efa
Patch4: golang-1.2-archive_tar-xattr.patch
# Having documentation separate was broken
Obsoletes: %{name}-docs < 1.1-4
@ -72,6 +77,10 @@ ExclusiveArch: %{ix86} x86_64 %{arm}
Source100: golang-gdbinit
Source101: golang-prelink.conf
# Patch4 - pull in new archive/tar upstream patch, this file is part
# of the upstream merge and is used for test cases.
Source400: golang-19087:a15f344a9efa-xattrs.tar
%description
%{summary}.
@ -135,6 +144,8 @@ end
%prep
%setup -q -n go
cp %SOURCE400 src/pkg/archive/tar/testdata/xattrs.tar
# increase verbosity of build
%patch0 -p1
@ -144,6 +155,9 @@ end
# skip flaky test
%patch3 -p1
# new archive/tar implementation from upstream
%patch4 -p1
# create a [dirty] gcc wrapper to allow us to build with our own flags
# (dirty because it is spoofing 'gcc' since CC value is stored in the go tool)
# TODO: remove this and just set CFLAGS/LDFLAGS once upstream supports it
@ -295,6 +309,10 @@ cp -av %{SOURCE101} $RPM_BUILD_ROOT%{_sysconfdir}/prelink.conf.d/golang.conf
%changelog
* Wed Feb 19 2014 Adam Miller <maxamillion@fedoraproject.org> 1.2-6
- pull in upstream archive/tar implementation that supports xattr for
docker 0.8.1
* Tue Feb 18 2014 Vincent Batts <vbatts@redhat.com> 1.2-5
- provide 'go', so users can yum install 'go'

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@ -1 +1,2 @@
c2ace56f6b6413a5c6318b9527a8b763 go1.2.src.tar.gz
d76dc07e475b2905b5fec1cf319b6356 golang-19087:a15f344a9efa-xattrs.tar