Rename linux collectors for build constraints.

collector/filesystem.go

@@ -1,144 +0,0 @@
-// +build !nofilesystem
-
-package collector
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"os"
-	"regexp"
-	"strings"
-	"syscall"
-
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/log"
-)
-
-const (
-	procMounts          = "/proc/mounts"
-	filesystemSubsystem = "filesystem"
-)
-
-var (
-	ignoredMountPoints = flag.String("collector.filesystem.ignored-mount-points", "^/(sys|proc|dev)($|/)", "Regexp of mount points to ignore for filesystem collector.")
-)
-
-type filesystemDetails struct {
-	device     string
-	mountPoint string
-	fsType     string
-}
-
-type filesystemCollector struct {
-	ignoredMountPointsPattern *regexp.Regexp
-
-	size, free, avail, files, filesFree *prometheus.GaugeVec
-}
-
-func init() {
-	Factories["filesystem"] = NewFilesystemCollector
-}
-
-// Takes a prometheus registry and returns a new Collector exposing
-// network device filesystems.
-func NewFilesystemCollector() (Collector, error) {
-	var filesystemLabelNames = []string{"device", "mountpoint", "fstype"}
-
-	return &filesystemCollector{
-		ignoredMountPointsPattern: regexp.MustCompile(*ignoredMountPoints),
-		size: prometheus.NewGaugeVec(
-			prometheus.GaugeOpts{
-				Namespace: Namespace,
-				Subsystem: filesystemSubsystem,
-				Name:      "size",
-				Help:      "Filesystem size in bytes.",
-			},
-			filesystemLabelNames,
-		),
-		free: prometheus.NewGaugeVec(
-			prometheus.GaugeOpts{
-				Namespace: Namespace,
-				Subsystem: filesystemSubsystem,
-				Name:      "free",
-				Help:      "Filesystem free space in bytes.",
-			},
-			filesystemLabelNames,
-		),
-		avail: prometheus.NewGaugeVec(
-			prometheus.GaugeOpts{
-				Namespace: Namespace,
-				Subsystem: filesystemSubsystem,
-				Name:      "avail",
-				Help:      "Filesystem space available to non-root users in bytes.",
-			},
-			filesystemLabelNames,
-		),
-		files: prometheus.NewGaugeVec(
-			prometheus.GaugeOpts{
-				Namespace: Namespace,
-				Subsystem: filesystemSubsystem,
-				Name:      "files",
-				Help:      "Filesystem total file nodes.",
-			},
-			filesystemLabelNames,
-		),
-		filesFree: prometheus.NewGaugeVec(
-			prometheus.GaugeOpts{
-				Namespace: Namespace,
-				Subsystem: filesystemSubsystem,
-				Name:      "files_free",
-				Help:      "Filesystem total free file nodes.",
-			},
-			filesystemLabelNames,
-		),
-	}, nil
-}
-
-// Expose filesystem fullness.
-func (c *filesystemCollector) Update(ch chan<- prometheus.Metric) (err error) {
-	mpds, err := mountPointDetails()
-	if err != nil {
-		return err
-	}
-	for _, mpd := range mpds {
-		if c.ignoredMountPointsPattern.MatchString(mpd.mountPoint) {
-			log.Debugf("Ignoring mount point: %s", mpd.mountPoint)
-			continue
-		}
-		buf := new(syscall.Statfs_t)
-		err := syscall.Statfs(mpd.mountPoint, buf)
-		if err != nil {
-			return fmt.Errorf("Statfs on %s returned %s", mpd.mountPoint, err)
-		}
-
-		c.size.WithLabelValues(mpd.device, mpd.mountPoint, mpd.fsType).Set(float64(buf.Blocks) * float64(buf.Bsize))
-		c.free.WithLabelValues(mpd.device, mpd.mountPoint, mpd.fsType).Set(float64(buf.Bfree) * float64(buf.Bsize))
-		c.avail.WithLabelValues(mpd.device, mpd.mountPoint, mpd.fsType).Set(float64(buf.Bavail) * float64(buf.Bsize))
-		c.files.WithLabelValues(mpd.device, mpd.mountPoint, mpd.fsType).Set(float64(buf.Files))
-		c.filesFree.WithLabelValues(mpd.device, mpd.mountPoint, mpd.fsType).Set(float64(buf.Ffree))
-	}
-	c.size.Collect(ch)
-	c.free.Collect(ch)
-	c.avail.Collect(ch)
-	c.files.Collect(ch)
-	c.filesFree.Collect(ch)
-	return err
-}
-
-func mountPointDetails() ([]filesystemDetails, error) {
-	file, err := os.Open(procMounts)
-	if err != nil {
-		return nil, err
-	}
-	defer file.Close()
-
-	filesystems := []filesystemDetails{}
-
-	scanner := bufio.NewScanner(file)
-	for scanner.Scan() {
-		parts := strings.Fields(scanner.Text())
-		filesystems = append(filesystems, filesystemDetails{parts[0], parts[1], parts[2]})
-	}
-	return filesystems, nil
-}