Vendor buildah after merging https://github.com/containers/buildah/pull/1214

This updates buildah for the sysregistriesv2 changes.

Signed-off-by: Miloslav Trmač <mitr@redhat.com>

vendor/github.com/containers/buildah/info.go

@@ -0,0 +1,207 @@
+package buildah
+
+import (
+	"bufio"
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"runtime"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/containers/libpod/pkg/rootless"
+	"github.com/containers/storage"
+	"github.com/containers/storage/pkg/system"
+	"github.com/sirupsen/logrus"
+)
+
+// InfoData holds the info type, i.e store, host etc and the data for each type
+type InfoData struct {
+	Type string
+	Data map[string]interface{}
+}
+
+// Info returns the store and host information
+func Info(store storage.Store) ([]InfoData, error) {
+	info := []InfoData{}
+	// get host information
+	hostInfo, err := hostInfo()
+	if err != nil {
+		logrus.Error(err, "error getting host info")
+	}
+	info = append(info, InfoData{Type: "host", Data: hostInfo})
+
+	// get store information
+	storeInfo, err := storeInfo(store)
+	if err != nil {
+		logrus.Error(err, "error getting store info")
+	}
+	info = append(info, InfoData{Type: "store", Data: storeInfo})
+	return info, nil
+}
+
+func hostInfo() (map[string]interface{}, error) {
+	info := map[string]interface{}{}
+	info["os"] = runtime.GOOS
+	info["arch"] = runtime.GOARCH
+	info["cpus"] = runtime.NumCPU()
+	info["rootless"] = rootless.IsRootless()
+	mi, err := system.ReadMemInfo()
+	if err != nil {
+		logrus.Error(err, "err reading memory info")
+		info["MemTotal"] = ""
+		info["MenFree"] = ""
+		info["SwapTotal"] = ""
+		info["SwapFree"] = ""
+	} else {
+		info["MemTotal"] = mi.MemTotal
+		info["MenFree"] = mi.MemFree
+		info["SwapTotal"] = mi.SwapTotal
+		info["SwapFree"] = mi.SwapFree
+	}
+	hostDistributionInfo := getHostDistributionInfo()
+	info["Distribution"] = map[string]interface{}{
+		"distribution": hostDistributionInfo["Distribution"],
+		"version":      hostDistributionInfo["Version"],
+	}
+
+	kv, err := readKernelVersion()
+	if err != nil {
+		logrus.Error(err, "error reading kernel version")
+	}
+	info["kernel"] = kv
+
+	up, err := readUptime()
+	if err != nil {
+		logrus.Error(err, "error reading up time")
+	}
+	// Convert uptime in seconds to a human-readable format
+	upSeconds := up + "s"
+	upDuration, err := time.ParseDuration(upSeconds)
+	if err != nil {
+		logrus.Error(err, "error parsing system uptime")
+	}
+
+	hoursFound := false
+	var timeBuffer bytes.Buffer
+	var hoursBuffer bytes.Buffer
+	for _, elem := range upDuration.String() {
+		timeBuffer.WriteRune(elem)
+		if elem == 'h' || elem == 'm' {
+			timeBuffer.WriteRune(' ')
+			if elem == 'h' {
+				hoursFound = true
+			}
+		}
+		if !hoursFound {
+			hoursBuffer.WriteRune(elem)
+		}
+	}
+
+	info["uptime"] = timeBuffer.String()
+	if hoursFound {
+		hours, err := strconv.ParseFloat(hoursBuffer.String(), 64)
+		if err == nil {
+			days := hours / 24
+			info["uptime"] = fmt.Sprintf("%s (Approximately %.2f days)", info["uptime"], days)
+		}
+	}
+
+	host, err := os.Hostname()
+	if err != nil {
+		logrus.Error(err, "error getting hostname")
+	}
+	info["hostname"] = host
+
+	return info, nil
+
+}
+
+// top-level "store" info
+func storeInfo(store storage.Store) (map[string]interface{}, error) {
+	// lets say storage driver in use, number of images, number of containers
+	info := map[string]interface{}{}
+	info["GraphRoot"] = store.GraphRoot()
+	info["RunRoot"] = store.RunRoot()
+	info["GraphDriverName"] = store.GraphDriverName()
+	info["GraphOptions"] = store.GraphOptions()
+	statusPairs, err := store.Status()
+	if err != nil {
+		return nil, err
+	}
+	status := map[string]string{}
+	for _, pair := range statusPairs {
+		status[pair[0]] = pair[1]
+	}
+	info["GraphStatus"] = status
+	images, err := store.Images()
+	if err != nil {
+		logrus.Error(err, "error getting number of images")
+	}
+	info["ImageStore"] = map[string]interface{}{
+		"number": len(images),
+	}
+
+	containers, err := store.Containers()
+	if err != nil {
+		logrus.Error(err, "error getting number of containers")
+	}
+	info["ContainerStore"] = map[string]interface{}{
+		"number": len(containers),
+	}
+
+	return info, nil
+}
+
+func readKernelVersion() (string, error) {
+	buf, err := ioutil.ReadFile("/proc/version")
+	if err != nil {
+		return "", err
+	}
+	f := bytes.Fields(buf)
+	if len(f) < 2 {
+		return string(bytes.TrimSpace(buf)), nil
+	}
+	return string(f[2]), nil
+}
+
+func readUptime() (string, error) {
+	buf, err := ioutil.ReadFile("/proc/uptime")
+	if err != nil {
+		return "", err
+	}
+	f := bytes.Fields(buf)
+	if len(f) < 1 {
+		return "", fmt.Errorf("invalid uptime")
+	}
+	return string(f[0]), nil
+}
+
+// getHostDistributionInfo returns a map containing the host's distribution and version
+func getHostDistributionInfo() map[string]string {
+	dist := make(map[string]string)
+
+	// Populate values in case we cannot find the values
+	// or the file
+	dist["Distribution"] = "unknown"
+	dist["Version"] = "unknown"
+
+	f, err := os.Open("/etc/os-release")
+	if err != nil {
+		return dist
+	}
+	defer f.Close()
+
+	l := bufio.NewScanner(f)
+	for l.Scan() {
+		if strings.HasPrefix(l.Text(), "ID=") {
+			dist["Distribution"] = strings.TrimPrefix(l.Text(), "ID=")
+		}
+		if strings.HasPrefix(l.Text(), "VERSION_ID=") {
+			dist["Version"] = strings.Trim(strings.TrimPrefix(l.Text(), "VERSION_ID="), "\"")
+		}
+	}
+	return dist
+}