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main.go
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main.go
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package main
import (
"fmt"
"os"
"os/signal"
"path/filepath"
"strings"
"github.com/alecthomas/kong"
"github.com/crazy-max/xcalxls2csv/pkg/xcal"
"github.com/rs/zerolog"
"github.com/rs/zerolog/log"
)
var (
version = "dev"
c cli
)
type cli struct {
Version kong.VersionFlag
XcalXls string `kong:"name='xcalxls',arg,required,help='Xcalibur XLS file to convert.'"`
Output string `kong:"name='output',help='Custom output filename.'"`
}
func main() {
// parse command line
_ = kong.Parse(&c,
kong.Name("xcalxls2csv"),
kong.Description(`Xcalibur XLS data frames to CSV`),
kong.UsageOnError(),
kong.Vars{
"version": fmt.Sprintf("%s", version),
},
kong.ConfigureHelp(kong.HelpOptions{
Compact: true,
Summary: true,
}))
// logger
log.Logger = zerolog.New(zerolog.ConsoleWriter{
Out: os.Stdout,
}).With().Timestamp().Logger()
zerolog.SetGlobalLevel(zerolog.InfoLevel)
// handle os signals
channel := make(chan os.Signal, 1)
signal.Notify(channel, os.Interrupt, SIGTERM)
go func() {
sig := <-channel
log.Warn().Msgf("Caught signal %v", sig)
os.Exit(0)
}()
// start
_, err := os.Stat(c.XcalXls)
if err != nil {
log.Fatal().Err(err).Msg("Cannot stat Xcalibur XLS file")
}
if c.Output == "" {
c.Output = fmt.Sprintf("%s.csv", strings.TrimSuffix(c.XcalXls, filepath.Ext(c.XcalXls)))
}
log.Info().Msgf("Converting Xcalibur XLS file %s to %s", c.XcalXls, c.Output)
if dt, err := xcal.ConvertToCSV(c.XcalXls); err != nil {
log.Fatal().Err(err).Msg("Cannot convert Xcalibur XLS file")
} else if err := os.WriteFile(c.Output, dt, 0644); err != nil {
log.Fatal().Err(err).Msg("Cannot write output file")
} else {
log.Info().Msgf("Xcalibur XLS file converted successfully to %s", c.Output)
}
}