Merge pull request #2609 from QiWang19/moveformats

move formats pkg to and vendor from buildah

21 files changed, 74 insertions, 100 deletions

diff --git a/cmd/podman/diff.go b/cmd/podman/diff.go
index bd3a985b7..e77e562d4 100644
--- a/cmd/podman/diff.go
+++ b/cmd/podman/diff.go
@@ -2,8 +2,8 @@ package main
 
 import (
 	"fmt"
+	"github.com/containers/buildah/pkg/formats"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/cmd/podman/libpodruntime"
 	"github.com/containers/storage/pkg/archive"
 	"github.com/pkg/errors"
diff --git a/cmd/podman/formats/formats_test.go b/cmd/podman/formats/formats_test.go
deleted file mode 100644
index c75109d65..000000000
--- a/cmd/podman/formats/formats_test.go
+++ /dev/null
@@ -1,42 +0,0 @@
-package formats
-
-import (
-	"bytes"
-	"strings"
-	"testing"
-
-	"github.com/containers/libpod/pkg/inspect"
-)
-
-func TestSetJSONFormatEncoder(t *testing.T) {
-	tt := []struct {
-		name       string
-		imageData  *inspect.ImageData
-		expected   string
-		isTerminal bool
-	}{
-		{
-			name:       "HTML tags are not escaped",
-			imageData:  &inspect.ImageData{Author: "dave <dave@corp.io>"},
-			expected:   `"Author": "dave <dave@corp.io>"`,
-			isTerminal: true,
-		},
-		{
-			name:       "HTML tags are escaped",
-			imageData:  &inspect.ImageData{Author: "dave <dave@corp.io>"},
-			expected:   `"Author": "dave \u003cdave@corp.io\u003e"`,
-			isTerminal: false,
-		},
-	}
-
-	for _, tc := range tt {
-		buf := bytes.NewBuffer(nil)
-		enc := setJSONFormatEncoder(tc.isTerminal, buf)
-		if err := enc.Encode(tc.imageData); err != nil {
-			t.Errorf("test %#v failed encoding: %s", tc.name, err)
-		}
-		if !strings.Contains(buf.String(), tc.expected) {
-			t.Errorf("test %#v expected output to contain %#v. Output:\n%v\n", tc.name, tc.expected, buf.String())
-		}
-	}
-}
diff --git a/cmd/podman/history.go b/cmd/podman/history.go
index f6cfe91b6..4b76ef0ca 100644
--- a/cmd/podman/history.go
+++ b/cmd/podman/history.go
@@ -6,8 +6,8 @@ import (
 	"strings"
 	"time"
 
+	"github.com/containers/buildah/pkg/formats"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/libpod/image"
 	"github.com/containers/libpod/pkg/adapter"
 	"github.com/docker/go-units"
diff --git a/cmd/podman/images.go b/cmd/podman/images.go
index f92e5d44d..6133450be 100644
--- a/cmd/podman/images.go
+++ b/cmd/podman/images.go
@@ -9,8 +9,8 @@ import (
 	"time"
 	"unicode"
 
+	"github.com/containers/buildah/pkg/formats"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/cmd/podman/imagefilters"
 	"github.com/containers/libpod/libpod/image"
 	"github.com/containers/libpod/pkg/adapter"
diff --git a/cmd/podman/info.go b/cmd/podman/info.go
index de20eb009..195267c7f 100644
--- a/cmd/podman/info.go
+++ b/cmd/podman/info.go
@@ -4,8 +4,8 @@ import (
 	"fmt"
 	rt "runtime"
 
+	"github.com/containers/buildah/pkg/formats"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/libpod"
 	"github.com/containers/libpod/pkg/adapter"
 	"github.com/containers/libpod/version"
diff --git a/cmd/podman/inspect.go b/cmd/podman/inspect.go
index 0af96088f..e14f25c24 100644
--- a/cmd/podman/inspect.go
+++ b/cmd/podman/inspect.go
@@ -5,8 +5,8 @@ import (
 	"encoding/json"
 	"strings"
 
+	"github.com/containers/buildah/pkg/formats"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/cmd/podman/shared"
 	"github.com/containers/libpod/pkg/adapter"
 	cc "github.com/containers/libpod/pkg/spec"
diff --git a/cmd/podman/mount.go b/cmd/podman/mount.go
index c5b7e2404..4381074ab 100644
--- a/cmd/podman/mount.go
+++ b/cmd/podman/mount.go
@@ -5,8 +5,8 @@ import (
 	"fmt"
 	"os"
 
+	of "github.com/containers/buildah/pkg/formats"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	of "github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/cmd/podman/libpodruntime"
 	"github.com/containers/libpod/pkg/rootless"
 	"github.com/pkg/errors"
diff --git a/cmd/podman/pod_ps.go b/cmd/podman/pod_ps.go
index e30a03005..a956882cf 100644
--- a/cmd/podman/pod_ps.go
+++ b/cmd/podman/pod_ps.go
@@ -8,8 +8,8 @@ import (
 	"strings"
 	"time"
 
+	"github.com/containers/buildah/pkg/formats"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/cmd/podman/shared"
 	"github.com/containers/libpod/libpod"
 	"github.com/containers/libpod/pkg/adapter"
diff --git a/cmd/podman/pod_stats.go b/cmd/podman/pod_stats.go
index 5c30e0595..701051938 100644
--- a/cmd/podman/pod_stats.go
+++ b/cmd/podman/pod_stats.go
@@ -11,8 +11,8 @@ import (
 
 	"encoding/json"
 	tm "github.com/buger/goterm"
+	"github.com/containers/buildah/pkg/formats"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/libpod"
 	"github.com/containers/libpod/pkg/adapter"
 	"github.com/pkg/errors"
diff --git a/cmd/podman/ps.go b/cmd/podman/ps.go
index 6caac2406..de6966c3b 100644
--- a/cmd/podman/ps.go
+++ b/cmd/podman/ps.go
@@ -12,8 +12,8 @@ import (
 	"text/tabwriter"
 	"time"
 
+	"github.com/containers/buildah/pkg/formats"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/cmd/podman/libpodruntime"
 	"github.com/containers/libpod/cmd/podman/shared"
 	"github.com/containers/libpod/libpod"
diff --git a/cmd/podman/search.go b/cmd/podman/search.go
index e508c2bcf..25f5a98b7 100644
--- a/cmd/podman/search.go
+++ b/cmd/podman/search.go
@@ -3,9 +3,9 @@ package main
 import (
 	"strings"
 
+	"github.com/containers/buildah/pkg/formats"
 	"github.com/containers/image/types"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/libpod/image"
 	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
diff --git a/cmd/podman/stats.go b/cmd/podman/stats.go
index 3e2e114a9..d379dbad7 100644
--- a/cmd/podman/stats.go
+++ b/cmd/podman/stats.go
@@ -8,8 +8,8 @@ import (
 	"time"
 
 	tm "github.com/buger/goterm"
+	"github.com/containers/buildah/pkg/formats"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/cmd/podman/libpodruntime"
 	"github.com/containers/libpod/libpod"
 	"github.com/docker/go-units"
diff --git a/cmd/podman/trust_set_show.go b/cmd/podman/trust_set_show.go
index 5a70c21cc..d7a4ea6d6 100644
--- a/cmd/podman/trust_set_show.go
+++ b/cmd/podman/trust_set_show.go
@@ -7,9 +7,9 @@ import (
 	"sort"
 	"strings"
 
+	"github.com/containers/buildah/pkg/formats"
 	"github.com/containers/image/types"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/cmd/podman/libpodruntime"
 	"github.com/containers/libpod/libpod/image"
 	"github.com/containers/libpod/pkg/trust"
diff --git a/cmd/podman/version.go b/cmd/podman/version.go
index b3615ce23..336be892e 100644
--- a/cmd/podman/version.go
+++ b/cmd/podman/version.go
@@ -6,8 +6,8 @@ import (
 	"text/tabwriter"
 	"time"
 
+	"github.com/containers/buildah/pkg/formats"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/libpod"
 	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
diff --git a/cmd/podman/volume_ls.go b/cmd/podman/volume_ls.go
index 5a36f4f7d..2f35462a3 100644
--- a/cmd/podman/volume_ls.go
+++ b/cmd/podman/volume_ls.go
@@ -4,8 +4,8 @@ import (
 	"reflect"
 	"strings"
 
+	"github.com/containers/buildah/pkg/formats"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/pkg/adapter"
 	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
diff --git a/vendor.conf b/vendor.conf
index e7aec5e35..1fd60f701 100644
--- a/vendor.conf
+++ b/vendor.conf
@@ -93,7 +93,7 @@ k8s.io/apimachinery kubernetes-1.10.13-beta.0 https://github.com/kubernetes/apim
 k8s.io/client-go kubernetes-1.10.13-beta.0 https://github.com/kubernetes/client-go
 github.com/mrunalp/fileutils 7d4729fb36185a7c1719923406c9d40e54fb93c7
 github.com/varlink/go 3ac79db6fd6aec70924193b090962f92985fe199
-github.com/containers/buildah 11dd2197dfffedb40687de1d667e6c9fb0708de9
+github.com/containers/buildah 345ffc2b29b4255a83cfa763db88799d8ec9c569 https://github.com/QiWang19/buildah
 # TODO: Gotty has not been updated since 2012. Can we find replacement?
 github.com/Nvveen/Gotty cd527374f1e5bff4938207604a14f2e38a9cf512
 # do not go beyond the below commit as the next one requires a more recent
diff --git a/vendor/github.com/containers/buildah/imagebuildah/build.go b/vendor/github.com/containers/buildah/imagebuildah/build.go
index d69eab52f..4f0ffac1c 100644
--- a/vendor/github.com/containers/buildah/imagebuildah/build.go
+++ b/vendor/github.com/containers/buildah/imagebuildah/build.go
@@ -293,7 +293,7 @@ func (b *Executor) Preserve(path string) error {
 
 	// Try and resolve the symlink (if one exists)
 	// Set archivedPath and path based on whether a symlink is found or not
-	if symLink, err := ResolveSymLink(b.mountPoint, path); err == nil {
+	if symLink, err := resolveSymlink(b.mountPoint, path); err == nil {
 		archivedPath = filepath.Join(b.mountPoint, symLink)
 		path = symLink
 	} else {
diff --git a/vendor/github.com/containers/buildah/imagebuildah/chroot_symlink.go b/vendor/github.com/containers/buildah/imagebuildah/chroot_symlink.go
index 6feedf6a5..86bf7653b 100644
--- a/vendor/github.com/containers/buildah/imagebuildah/chroot_symlink.go
+++ b/vendor/github.com/containers/buildah/imagebuildah/chroot_symlink.go
@@ -24,9 +24,7 @@ func init() {
 	reexec.Register(symlinkModifiedTime, resolveSymlinkTimeModified)
 }
 
-// main() for grandparent subprocess.  Its main job is to shuttle stdio back
-// and forth, managing a pseudo-terminal if we want one, for our child, the
-// parent subprocess.
+// main() for resolveSymlink()'s subprocess.
 func resolveChrootedSymlinks() {
 	status := 0
 	flag.Parse()
@@ -57,9 +55,9 @@ func resolveChrootedSymlinks() {
 	os.Exit(status)
 }
 
-// ResolveSymLink (in the grandparent process) resolves any symlink in filename
+// resolveSymlink uses a child subprocess to resolve any symlinks in filename
 // in the context of rootdir.
-func ResolveSymLink(rootdir, filename string) (string, error) {
+func resolveSymlink(rootdir, filename string) (string, error) {
 	// The child process expects a chroot and one path that
 	// will be consulted relative to the chroot directory and evaluated
 	// for any symbolic links present.
@@ -253,7 +251,7 @@ func hasSymlink(path string) (bool, string, error) {
 	}
 	// if the symlink points to a relative path, prepend the path till now to the resolved path
 	if !filepath.IsAbs(targetDir) {
-		targetDir = filepath.Join(path, targetDir)
+		targetDir = filepath.Join(filepath.Dir(path), targetDir)
 	}
 	// run filepath.Clean to remove the ".." from relative paths
 	return true, filepath.Clean(targetDir), nil
diff --git a/cmd/podman/formats/formats.go b/vendor/github.com/containers/buildah/pkg/formats/formats.go
index 37f9b8a20..37f9b8a20 100644
--- a/cmd/podman/formats/formats.go
+++ b/vendor/github.com/containers/buildah/pkg/formats/formats.go
diff --git a/cmd/podman/formats/templates.go b/vendor/github.com/containers/buildah/pkg/formats/templates.go
index c2582552a..c2582552a 100644
--- a/cmd/podman/formats/templates.go
+++ b/vendor/github.com/containers/buildah/pkg/formats/templates.go
diff --git a/vendor/github.com/containers/buildah/run.go b/vendor/github.com/containers/buildah/run.go
index 4d6d28380..f56ce30b1 100644
--- a/vendor/github.com/containers/buildah/run.go
+++ b/vendor/github.com/containers/buildah/run.go
@@ -1,7 +1,6 @@
 package buildah
 
 import (
-	"bufio"
 	"bytes"
 	"encoding/json"
 	"fmt"
@@ -272,36 +271,6 @@ func addRlimits(ulimit []string, g *generate.Generator) error {
 	return nil
 }
 
-func addHosts(hosts []string, w io.Writer) error {
-	buf := bufio.NewWriter(w)
-	for _, host := range hosts {
-		values := strings.SplitN(host, ":", 2)
-		if len(values) != 2 {
-			return errors.Errorf("unable to parse host entry %q: incorrect format", host)
-		}
-		if values[0] == "" {
-			return errors.Errorf("hostname in host entry %q is empty", host)
-		}
-		if values[1] == "" {
-			return errors.Errorf("IP address in host entry %q is empty", host)
-		}
-		fmt.Fprintf(buf, "%s\t%s\n", values[1], values[0])
-	}
-	return buf.Flush()
-}
-
-func addHostsToFile(hosts []string, filename string) error {
-	if len(hosts) == 0 {
-		return nil
-	}
-	file, err := os.OpenFile(filename, os.O_APPEND|os.O_WRONLY, os.ModeAppend)
-	if err != nil {
-		return errors.Wrapf(err, "error creating hosts file %q", filename)
-	}
-	defer file.Close()
-	return addHosts(hosts, file)
-}
-
 func addCommonOptsToSpec(commonOpts *CommonBuildOptions, g *generate.Generator) error {
 	// Resources - CPU
 	if commonOpts.CPUPeriod != 0 {
@@ -638,6 +607,59 @@ func (b *Builder) addNetworkConfig(rdir, hostPath string, chownOpts *idtools.IDP
 	return cfile, nil
 }
 
+// generateHosts creates a containers hosts file
+func (b *Builder) generateHosts(rdir, hostname string, addHosts []string, chownOpts *idtools.IDPair) (string, error) {
+	hostPath := "/etc/hosts"
+	stat, err := os.Stat(hostPath)
+	if err != nil {
+		return "", errors.Wrapf(err, "error statting %q for container %q", hostPath, b.ContainerID)
+	}
+
+	hosts := bytes.NewBufferString("# Generated by Buildah\n")
+	orig, err := ioutil.ReadFile(hostPath)
+	if err != nil {
+		return "", errors.Wrapf(err, "unable to read %s", hostPath)
+	}
+	hosts.Write(orig)
+	for _, host := range addHosts {
+		// verify the host format
+		values := strings.SplitN(host, ":", 2)
+		if len(values) != 2 {
+			return "", errors.Errorf("unable to parse host entry %q: incorrect format", host)
+		}
+		if values[0] == "" {
+			return "", errors.Errorf("hostname in host entry %q is empty", host)
+		}
+		if values[1] == "" {
+			return "", errors.Errorf("IP address in host entry %q is empty", host)
+		}
+		hosts.Write([]byte(fmt.Sprintf("%s\t%s\n", values[1], values[0])))
+	}
+
+	if hostname != "" {
+		hosts.Write([]byte(fmt.Sprintf("127.0.0.1   %s\n", hostname)))
+		hosts.Write([]byte(fmt.Sprintf("::1         %s\n", hostname)))
+	}
+	cfile := filepath.Join(rdir, filepath.Base(hostPath))
+	if err = ioutils.AtomicWriteFile(cfile, hosts.Bytes(), stat.Mode().Perm()); err != nil {
+		return "", errors.Wrapf(err, "error writing /etc/hosts into the container")
+	}
+	uid := int(stat.Sys().(*syscall.Stat_t).Uid)
+	gid := int(stat.Sys().(*syscall.Stat_t).Gid)
+	if chownOpts != nil {
+		uid = chownOpts.UID
+		gid = chownOpts.GID
+	}
+	if err = os.Chown(cfile, uid, gid); err != nil {
+		return "", errors.Wrapf(err, "error chowning file %q for container %q", cfile, b.ContainerID)
+	}
+	if err := label.Relabel(cfile, b.MountLabel, false); err != nil {
+		return "", errors.Wrapf(err, "error relabeling %q in container %q", cfile, b.ContainerID)
+	}
+
+	return cfile, nil
+}
+
 func setupMaskedPaths(g *generate.Generator) {
 	for _, mp := range []string{
 		"/proc/acpi",
@@ -1081,15 +1103,11 @@ func (b *Builder) Run(command []string, options RunOptions) error {
 	volumes := b.Volumes()
 
 	if !contains(volumes, "/etc/hosts") {
-		hostFile, err := b.addNetworkConfig(path, "/etc/hosts", rootIDPair)
+		hostFile, err := b.generateHosts(path, spec.Hostname, b.CommonBuildOpts.AddHost, rootIDPair)
 		if err != nil {
 			return err
 		}
 		bindFiles["/etc/hosts"] = hostFile
-
-		if err := addHostsToFile(b.CommonBuildOpts.AddHost, hostFile); err != nil {
-			return err
-		}
 	}
 
 	if !contains(volumes, "/etc/resolv.conf") {