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package main
import (
"encoding/csv"
"fmt"
"log"
"os"
"path"
"strconv"
)
// jobs is a map that matches a job name string to its last successfull run timestamp
type jobs map[string]uint64
func loadSpool() (entries jobs, err error) {
var (
file *os.File
lines [][]string
)
// We read the spool
file, err = os.Open(path.Join(workDir, spoolFile))
if err != nil {
return nil, fmt.Errorf("Couldn't open spool file, starting from scratch: %s", err)
}
defer file.Close()
lines, err = csv.NewReader(file).ReadAll()
if err != nil {
return nil, fmt.Errorf("Corrupted spool file, starting from scratch : %s", err)
}
if verbose {
log.Printf("Spool file content : %v\n", lines)
}
entries = make(map[string]uint64)
for _, line := range lines {
var i int
i, err = strconv.Atoi(line[1])
if err != nil {
return nil, fmt.Errorf("Corrupted spool file : couldn't parse timestamp entry")
}
entries[line[0]] = uint64(i)
}
return
}
func saveSpool(entries jobs) (err error) {
var (
file *os.File
lines [][]string
jobName string
ts uint64
i int
)
file, err = os.Create(path.Join(workDir, spoolFile))
if err != nil {
return
}
defer file.Close()
lines = make([][]string, len(entries))
i = 0
for jobName, ts = range entries {
lines[i] = make([]string, 2)
lines[i][0] = jobName
lines[i][1] = fmt.Sprintf("%d", ts)
i++
}
err = csv.NewWriter(file).WriteAll(lines)
return
}
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