Switch to github.com/golang/dep for vendoring

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>

vendor/k8s.io/kubernetes/pkg/util/procfs/BUILD

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+package(default_visibility = ["//visibility:public"])
+
+licenses(["notice"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+    "go_test",
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "doc.go",
+        "procfs.go",
+        "procfs_fake.go",
+        "procfs_linux.go",
+    ],
+    tags = ["automanaged"],
+    deps = [
+        "//vendor:github.com/golang/glog",
+        "//vendor:k8s.io/apimachinery/pkg/util/errors",
+    ],
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = ["procfs_linux_test.go"],
+    data = [
+        "example_proc_cgroup",
+    ],
+    library = ":go_default_library",
+    tags = [
+        "automanaged",
+    ],
+    deps = ["//vendor:github.com/stretchr/testify/assert"],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+)

vendor/k8s.io/kubernetes/pkg/util/procfs/doc.go

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+/*
+Copyright 2015 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Package procfs implements utility functions relating to the /proc mount.
+package procfs // import "k8s.io/kubernetes/pkg/util/procfs"

vendor/k8s.io/kubernetes/pkg/util/procfs/example_proc_cgroup

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+11:name=systemd:/user/1000.user/c1.session
+10:hugetlb:/user/1000.user/c1.session
+9:perf_event:/user/1000.user/c1.session
+8:blkio:/user/1000.user/c1.session
+7:freezer:/user/1000.user/c1.session
+6:devices:/user/1000.user/c1.session
+5:memory:/user/1000.user/c1.session
+4:cpuacct:/user/1000.user/c1.session
+3:cpu:/user/1000.user/c1.session
+2:cpuset:/

vendor/k8s.io/kubernetes/pkg/util/procfs/procfs.go

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+/*
+Copyright 2015 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package procfs
+
+type ProcFSInterface interface {
+	// GetFullContainerName gets the container name given the root process id of the container.
+	GetFullContainerName(pid int) (string, error)
+}

vendor/k8s.io/kubernetes/pkg/util/procfs/procfs_fake.go

@@ -0,0 +1,30 @@
+/*
+Copyright 2015 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package procfs
+
+type FakeProcFS struct{}
+
+func NewFakeProcFS() ProcFSInterface {
+	return &FakeProcFS{}
+}
+
+// GetFullContainerName gets the container name given the root process id of the container.
+// Eg. If the devices cgroup for the container is stored in /sys/fs/cgroup/devices/docker/nginx,
+// return docker/nginx. Assumes that the process is part of exactly one cgroup hierarchy.
+func (fakePfs *FakeProcFS) GetFullContainerName(pid int) (string, error) {
+	return "", nil
+}

vendor/k8s.io/kubernetes/pkg/util/procfs/procfs_linux.go

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+// +build linux
+
+/*
+Copyright 2015 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package procfs
+
+import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path"
+	"path/filepath"
+	"regexp"
+	"strconv"
+	"strings"
+	"syscall"
+	"unicode"
+
+	"github.com/golang/glog"
+	utilerrors "k8s.io/apimachinery/pkg/util/errors"
+)
+
+type ProcFS struct{}
+
+func NewProcFS() ProcFSInterface {
+	return &ProcFS{}
+}
+
+func containerNameFromProcCgroup(content string) (string, error) {
+	lines := strings.Split(content, "\n")
+	for _, line := range lines {
+		entries := strings.SplitN(line, ":", 3)
+		if len(entries) == 3 && entries[1] == "devices" {
+			return strings.TrimSpace(entries[2]), nil
+		}
+	}
+	return "", fmt.Errorf("could not find devices cgroup location")
+}
+
+// getFullContainerName gets the container name given the root process id of the container.
+// Eg. If the devices cgroup for the container is stored in /sys/fs/cgroup/devices/docker/nginx,
+// return docker/nginx. Assumes that the process is part of exactly one cgroup hierarchy.
+func (pfs *ProcFS) GetFullContainerName(pid int) (string, error) {
+	filePath := path.Join("/proc", strconv.Itoa(pid), "cgroup")
+	content, err := ioutil.ReadFile(filePath)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return "", os.ErrNotExist
+		}
+		return "", err
+	}
+	return containerNameFromProcCgroup(string(content))
+}
+
+// Find process(es) using a regular expression and send a specified
+// signal to each process
+func PKill(name string, sig syscall.Signal) error {
+	if len(name) == 0 {
+		return fmt.Errorf("name should not be empty")
+	}
+	re, err := regexp.Compile(name)
+	if err != nil {
+		return err
+	}
+	pids := getPids(re)
+	if len(pids) == 0 {
+		return fmt.Errorf("unable to fetch pids for process name : %q", name)
+	}
+	errList := []error{}
+	for _, pid := range pids {
+		if err = syscall.Kill(pid, sig); err != nil {
+			errList = append(errList, err)
+		}
+	}
+	return utilerrors.NewAggregate(errList)
+}
+
+// Find process(es) with a specified name (exact match)
+// and return their pid(s)
+func PidOf(name string) ([]int, error) {
+	if len(name) == 0 {
+		return []int{}, fmt.Errorf("name should not be empty")
+	}
+	re, err := regexp.Compile("(^|/)" + name + "$")
+	if err != nil {
+		return []int{}, err
+	}
+	return getPids(re), nil
+}
+
+func getPids(re *regexp.Regexp) []int {
+	pids := []int{}
+	filepath.Walk("/proc", func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			// We should continue processing other directories/files
+			return nil
+		}
+		base := filepath.Base(path)
+		// Traverse only the directories we are interested in
+		if info.IsDir() && path != "/proc" {
+			// If the directory is not a number (i.e. not a PID), skip it
+			if _, err := strconv.Atoi(base); err != nil {
+				return filepath.SkipDir
+			}
+		}
+		if base != "cmdline" {
+			return nil
+		}
+		cmdline, err := ioutil.ReadFile(path)
+		if err != nil {
+			glog.V(4).Infof("Error reading file %s: %+v", path, err)
+			return nil
+		}
+		// The bytes we read have '\0' as a separator for the command line
+		parts := bytes.SplitN(cmdline, []byte{0}, 2)
+		if len(parts) == 0 {
+			return nil
+		}
+		// Split the command line itself we are interested in just the first part
+		exe := strings.FieldsFunc(string(parts[0]), func(c rune) bool {
+			return unicode.IsSpace(c) || c == ':'
+		})
+		if len(exe) == 0 {
+			return nil
+		}
+		// Check if the name of the executable is what we are looking for
+		if re.MatchString(exe[0]) {
+			dirname := filepath.Base(filepath.Dir(path))
+			// Grab the PID from the directory path
+			pid, _ := strconv.Atoi(dirname)
+			pids = append(pids, pid)
+		}
+		return nil
+	})
+	return pids
+}

vendor/k8s.io/kubernetes/pkg/util/procfs/procfs_linux_test.go

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+// +build linux
+
+/*
+Copyright 2015 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package procfs
+
+import (
+	"io/ioutil"
+	"os"
+	"os/signal"
+	"path/filepath"
+	"runtime"
+	"syscall"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func verifyContainerName(procCgroupText, expectedName string, expectedErr bool, t *testing.T) {
+	name, err := containerNameFromProcCgroup(procCgroupText)
+	if expectedErr && err == nil {
+		t.Errorf("Expected error but did not get error in verifyContainerName")
+		return
+	} else if !expectedErr && err != nil {
+		t.Errorf("Expected no error, but got error %+v in verifyContainerName", err)
+		return
+	} else if expectedErr {
+		return
+	}
+	if name != expectedName {
+		t.Errorf("Expected container name %s but got name %s", expectedName, name)
+	}
+}
+
+func TestContainerNameFromProcCgroup(t *testing.T) {
+	procCgroupValid := "2:devices:docker/kubelet"
+	verifyContainerName(procCgroupValid, "docker/kubelet", false, t)
+
+	procCgroupEmpty := ""
+	verifyContainerName(procCgroupEmpty, "", true, t)
+
+	content, err := ioutil.ReadFile("example_proc_cgroup")
+	if err != nil {
+		t.Errorf("Could not read example /proc cgroup file")
+	}
+	verifyContainerName(string(content), "/user/1000.user/c1.session", false, t)
+
+	procCgroupNoDevice := "2:freezer:docker/kubelet\n5:cpuacct:pkg/kubectl"
+	verifyContainerName(procCgroupNoDevice, "", true, t)
+
+	procCgroupInvalid := "devices:docker/kubelet\ncpuacct:pkg/kubectl"
+	verifyContainerName(procCgroupInvalid, "", true, t)
+}
+
+func TestPidOf(t *testing.T) {
+	if runtime.GOOS == "darwin" || runtime.GOOS == "windows" {
+		t.Skipf("not supported on GOOS=%s", runtime.GOOS)
+	}
+	pids, err := PidOf(filepath.Base(os.Args[0]))
+	assert.Empty(t, err)
+	assert.NotZero(t, pids)
+	assert.Contains(t, pids, os.Getpid())
+}
+
+func TestPKill(t *testing.T) {
+	if runtime.GOOS == "darwin" || runtime.GOOS == "windows" {
+		t.Skipf("not supported on GOOS=%s", runtime.GOOS)
+	}
+	sig := syscall.SIGCONT
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, sig)
+	defer signal.Stop(c)
+	PKill(os.Args[0], sig)
+	select {
+	case s := <-c:
+		if s != sig {
+			t.Fatalf("signal was %v, want %v", s, sig)
+		}
+	case <-time.After(1 * time.Second):
+		t.Fatalf("timeout waiting for %v", sig)
+	}
+}

vendor/k8s.io/kubernetes/pkg/util/procfs/procfs_unsupported.go

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+// +build !linux
+
+/*
+Copyright 2016 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package procfs
+
+import (
+	"fmt"
+	"syscall"
+)
+
+type ProcFS struct{}
+
+func NewProcFS() ProcFSInterface {
+	return &ProcFS{}
+}
+
+// GetFullContainerName gets the container name given the root process id of the container.
+func (pfs *ProcFS) GetFullContainerName(pid int) (string, error) {
+	return "", fmt.Errorf("GetFullContainerName is unsupported in this build")
+}
+
+// Find process(es) using a regular expression and send a specified
+// signal to each process
+func PKill(name string, sig syscall.Signal) error {
+	return fmt.Errorf("PKill is unsupported in this build")
+}
+
+// Find process(es) with a specified name (exact match)
+// and return their pid(s)
+func PidOf(name string) ([]int, error) {
+	return []int{}, fmt.Errorf("PidOf is unsupported in this build")
+}