forked from tgulacsi/agostle
/
main.go
261 lines (236 loc) · 6.58 KB
/
main.go
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// Copyright 2013 The Agostle Authors. All rights reserved.
// Use of this source code is governed by an Apache 2.0
// license that can be found in the LICENSE file.
package main
import (
"fmt"
"io"
stdlog "log"
"math/rand"
"os"
"path/filepath"
"strconv"
"time"
"github.com/go-kit/kit/log"
"github.com/go-kit/kit/log/levels"
"github.com/go-kit/kit/log/term"
"github.com/kardianos/osext"
"github.com/spf13/cobra"
"github.com/tgulacsi/agostle/converter"
"github.com/tgulacsi/go/loghlp/kithlp"
"gopkg.in/errgo.v1"
"gopkg.in/natefinch/lumberjack.v2"
)
const version = "0.1.6"
const updateURI = "https://api.equinox.io/1/Updates"
var (
Logger *log.Context
logger levels.Levels
logBase = &log.SwapLogger{}
termLog log.Logger
)
func init() {
termLog = log.NewLogfmtLogger(os.Stderr)
if term.IsTerminal(os.Stderr) {
termLog = term.NewLogger(
os.Stderr,
log.NewLogfmtLogger,
kithlp.NewLevelColorer("level", nil),
)
}
logBase.Swap(termLog)
lg := kithlp.StringifyLogger{logBase}
Logger = log.NewContext(lg).With("ts", log.DefaultTimestampUTC, "caller", log.Caller(4))
logger = levels.New(Logger)
stdlog.SetOutput(log.NewStdlibAdapter(logBase))
converter.Logger.Swap(Logger)
}
func getListenAddr(args []string) string {
for _, x := range args {
if x == "" {
break
}
return x
}
return *converter.ConfListenAddr
}
const usagePrefix = "Usage: agostle [globalopts] "
var agostleCmd = &cobra.Command{
Use: "agostle",
Short: "agostle v" + version + " is an \"apostle\" which turns everything to PDF",
}
func main() {
var (
verbose, leaveTempFiles bool
concurrency int
timeout time.Duration
configFile, logFile string
)
p := agostleCmd.PersistentFlags()
p.BoolVarP(&leaveTempFiles, "leave-tempfiles", "x", false, "leave tempfiles?")
p.BoolVarP(&verbose, "verbose", "v", false, "verbose logging")
p.IntVarP(&concurrency, "concurrency", "C", converter.Concurrency, "number of childs start in parallel")
p.DurationVar(&timeout, "timeout", 10*time.Minute, "timeout for external programs")
p.StringVarP(&configFile, "config", "c", "", "config file (TOML)")
p.StringVarP(&logFile, "logfile", "", "", "logfile")
var logFh io.WriteCloser
cobra.OnInitialize(func() {
if logFile != "" {
logger.Info("msg", "will log to file, too", "logFile", logFile)
logBase.Swap(multiLogger([]log.Logger{termLog,
log.NewLogfmtLogger(&lumberjack.Logger{
Filename: logFile,
MaxSize: 50,
MaxAge: 28,
})}))
logger.Info("msg", "2 will log to file, too", "logFile", logFile)
}
if !verbose {
// TODO(tgulacsi): LvlFilter
//hndl = log15.LvlFilterHandler(log15.LvlInfo, hndl)
//Logger.Swap(log.NewTerminalLogger(os.Stderr, log.NewLogfmtLogger(os.Stderr)))
//converter.SetLogHandler(hndl)
}
logger.Info("msg", "VERSION="+version, "leave_tempfiles?", leaveTempFiles)
converter.LeaveTempFiles = leaveTempFiles
converter.Concurrency = concurrency
if configFile == "" {
if self, err := osext.Executable(); err != nil {
logger.Warn("msg", "cannot determine executable file name!", "error", err)
} else {
ini := filepath.Join(filepath.Dir(self), "agostle.ini")
f, err := os.Open(ini)
if err != nil {
logger.Warn("msg", "cannot open config", "file", ini, "error", err)
} else {
_ = f.Close()
configFile = ini
}
}
}
if fileExists(configFile) {
logger.Info("msg", "loading config", "file", configFile)
if err := converter.LoadConfig(configFile); err != nil {
logger.Crit("msg", "parsing config", "file", configFile, "error", err)
panic("bad config file")
}
}
if timeout > 0 && timeout != *converter.ConfChildTimeout {
logger.Info("msg", "setting timeout from", "old", *converter.ConfChildTimeout, "new", timeout)
*converter.ConfChildTimeout = timeout
}
sortBeforeMerge = *converter.ConfSortBeforeMerge
logger.Info("msg", "commands",
"pdftk", *converter.ConfPdftk,
"loffice", *converter.ConfLoffice,
"gm", *converter.ConfGm,
"gs", *converter.ConfGs,
"pdfclean", *converter.ConfPdfClean)
logger.Info("msg", "parameters",
"sortBeforeMerge", sortBeforeMerge,
"workdir", converter.Workdir,
"listen", *converter.ConfListenAddr,
"childTimeout", *converter.ConfChildTimeout,
"defaultIsService", *converter.ConfDefaultIsService)
})
if logFh != nil {
defer logFh.Close()
}
versionCmd := &cobra.Command{
Use: "version",
Short: "print version number",
Run: func(cmd *cobra.Command, _ []string) {
fmt.Println(version)
},
}
agostleCmd.AddCommand(versionCmd)
updateCmd := &cobra.Command{
Use: "update",
Short: "update binary to the latest release",
Run: func(cmd *cobra.Command, args []string) {
if err := updateSelf(); err != nil {
os.Exit(1)
}
},
}
agostleCmd.AddCommand(updateCmd)
{
var savereq bool
serveCmd := &cobra.Command{
Use: "serve",
Short: "serve HTTP",
Long: "serve [-savereq] addr.to.listen.on:port",
Run: func(cmd *cobra.Command, args []string) {
_ = updateSelf()
startHTTPServer(getListenAddr(args), savereq)
},
}
serveCmd.Flags().BoolVar(&savereq, "savereq", false, "save requests")
agostleCmd.AddCommand(serveCmd)
}
agostleCmd.Execute()
}
func ensureFilename(fn string, out bool) (string, bool) {
if !(fn == "" || fn == "-") {
return fn, false
}
fn = filepath.Join(converter.Workdir,
strconv.Itoa(os.Getpid())+"-"+strconv.Itoa(rand.Int()))
fmt.Fprintf(os.Stderr, "fn=%s out? %t\n", fn, out)
if out {
return fn, true
}
fh, err := os.Create(fn)
if err != nil {
fmt.Fprintf(os.Stderr, "cannot open temp file %s: %s\n", fn, err)
os.Exit(4)
}
if _, err = io.Copy(fh, os.Stdin); err != nil {
fmt.Fprintf(os.Stderr, "error writing stdout to %s: %s\n", fn, err)
os.Exit(5)
}
return fn, true
}
func openIn(fn string) (*os.File, error) {
if fn == "-" || fn == "" {
return os.Stdin, nil
}
f, err := os.Open(fn)
if err != nil {
return nil, errgo.NoteMask(err, "file="+fn, os.IsNotExist)
}
return f, nil
}
func openOut(destfn string) (*os.File, error) {
if destfn == "" || destfn == "-" {
return os.Stdout, nil
}
f, err := os.Create(destfn)
if err != nil {
return nil, errgo.NoteMask(err, "file="+destfn, errgo.Any)
}
return f, nil
}
func fileExists(fn string) bool {
if _, err := os.Stat(fn); err == nil {
return true
}
return false
}
func isDir(fn string) bool {
fi, err := os.Stat(fn)
if err != nil {
return false
}
return fi.IsDir()
}
type multiLogger []log.Logger
func (m multiLogger) Log(keyvals ...interface{}) error {
var err error
for _, l := range m {
if err2 := l.Log(keyvals...); err2 != nil && err == nil {
err = err2
}
}
return err
}