Initial import

main.go

@@ -0,0 +1,152 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"path"
+	"time"
+)
+
+const (
+	bareosWorkDir   = "/var/lib/bareos"
+	bareosStateFile = "bareos-fd.9102.state"
+	baculaWorkDir   = "/var/lib/bacula"
+	baculaStateFile = "bacula-fd.9102.state"
+	spoolFile       = "bareos-zabbix-check.spool"
+)
+
+// We declare globally the variables that will hold the command line arguments
+var (
+	verbose   bool
+	quiet     bool
+	stateFile string
+	workDir   string
+)
+
+func main() {
+	var (
+		info           os.FileInfo
+		err            error
+		successfulJobs jobs
+		errorJobs      jobs
+		spoolJobs      jobs
+		jobName        string
+		ts             uint64
+		now            uint64
+		errorString    string
+		missingString  string
+	)
+
+	// command line arguments parsing
+	flag.BoolVar(&verbose, "v", false, "Activates verbose debugging output, defaults to false.")
+	flag.BoolVar(&quiet, "q", false, "Suppress all output, suitable to force a silent update of the spool file.")
+	flag.StringVar(&stateFile, "f", "", "Force the state file to use, defaults to "+bareosStateFile+" if it exists else "+baculaStateFile+".")
+	flag.StringVar(&workDir, "w", "", "Force the work directory to use, defaults to "+bareosWorkDir+" if it exists else "+baculaWorkDir+".")
+	flag.Parse()
+
+	// Determine the work directory to use.
+	if workDir != "" {
+		info, err = os.Stat(workDir)
+		if os.IsNotExist(err) || !info.IsDir() {
+			fmt.Printf("INFO Invalid work directory %s : it does not exist or is not a directory.\n", workDir)
+			os.Exit(0)
+		}
+	} else {
+		workDir = "/var/lib/bareos"
+		info, err = os.Stat(workDir)
+		if os.IsNotExist(err) || !info.IsDir() {
+			workDir = "/var/lib/bacula"
+			info, err := os.Stat(workDir)
+			if os.IsNotExist(err) || !info.IsDir() {
+				fmt.Println("INFO Could not find a suitable work directory. Is bareos or bacula installed?")
+				os.Exit(0)
+			}
+		}
+	}
+	workDir = path.Clean(workDir)
+	if verbose {
+		log.Println("Setting work directory to ", workDir)
+	}
+
+	// Finds the state file to parse
+	if stateFile != "" {
+		stateFile = path.Join(workDir, stateFile)
+		info, err = os.Stat(stateFile)
+		if os.IsNotExist(err) || info.IsDir() {
+			fmt.Printf("INFO The state file %s does not exist.\n", stateFile)
+			os.Exit(0)
+		}
+	} else {
+		stateFile = path.Join(workDir, bareosStateFile)
+		info, err = os.Stat(stateFile)
+		if os.IsNotExist(err) || info.IsDir() {
+			stateFile = path.Join(workDir, baculaStateFile)
+			info, err = os.Stat(stateFile)
+			if os.IsNotExist(err) || info.IsDir() {
+				fmt.Println("INFO Could not find a suitable state file. Has a job ever run?")
+				os.Exit(0)
+			}
+		}
+	}
+	if verbose {
+		log.Println("Using state file ", stateFile)
+	}
+
+	successfulJobs, errorJobs, err = parseStateFile()
+	if err != nil {
+		fmt.Print(err)
+		os.Exit(0)
+	}
+	// We will check for errors in loading the spool file only if necessary. If all jobs ran successfully without errors in the state file and we manage to write
+	// a new spool file without errors, then we will ignore any error here to avoid false positives during backup bootstrap
+	spoolJobs, err = loadSpool()
+
+	// if we have jobs in the spool we merge this list with successfull jobs from the state file
+	if err == nil {
+		for jobName, ts = range spoolJobs {
+			var (
+				current uint64
+				ok      bool
+			)
+			current, ok = successfulJobs[jobName]
+			if !ok || current < ts {
+				successfulJobs[jobName] = ts
+			}
+		}
+	}
+	// we write this new spool
+	if err2 := saveSpool(successfulJobs); err2 != nil {
+		fmt.Printf("AVERAGE: Couldn't save spool : %s\n", err2)
+		os.Exit(0)
+	}
+
+	// We build the error string listing the jobs in error
+	for jobName, ts = range errorJobs {
+		if errorString == "" {
+			errorString = fmt.Sprintf("errors: %s", jobName)
+		} else {
+			errorString = fmt.Sprintf("%s, %s", errorString, jobName)
+		}
+	}
+	now = uint64(time.Now().Unix())
+	// Next we check if all jobs ran recently and build the missing string
+	for jobName, ts = range successfulJobs {
+		if ts < now-24*3600 {
+			if missingString == "" {
+				missingString = fmt.Sprintf("missing: %s", jobName)
+			} else {
+				missingString = fmt.Sprintf("%s, %s", missingString, jobName)
+			}
+		}
+	}
+	if errorString != "" || missingString != "" {
+		fmt.Printf("AVERAGE: %s %s", errorString, missingString)
+		if err != nil {
+			fmt.Printf(" additionnal errors: %s", err)
+		}
+	} else {
+		fmt.Printf("OK")
+	}
+}