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package main
import (
"bytes"
"flag"
"go/format"
"io"
"log"
"os"
"sort"
"text/template"
"golang.org/x/text/encoding/charmap"
"github.com/mitch000001/go-hbci/bankinfo"
"github.com/pkg/errors"
)
func main() {
flag.Parse()
bankdataFiles := flag.Args()
if len(bankdataFiles) == 0 {
log.Fatal("No file provided. Exiting...")
os.Exit(1)
}
var bankInfos []bankinfo.BankInfo
decoder := charmap.ISO8859_1.NewDecoder()
for _, bankdata := range bankdataFiles {
file, err := os.Open(bankdata)
if err != nil {
log.Fatalf("Cannot open file: %q", bankdata)
os.Exit(1)
}
infos, err := bankinfo.ParseBankInfos(decoder.Reader(file))
if err != nil {
log.Fatalf("Parse error: %q", err)
os.Exit(1)
}
bankInfos = append(bankInfos, infos...)
}
sort.Sort(bankinfo.SortableBankInfos(bankInfos))
data, err := writeDataToGoFile(bankInfos)
if err != nil {
log.Fatalf("Error while writing generated source: %v", err)
os.Exit(1)
}
goFile, err := os.Create("bankinfo/data.go")
if err != nil {
log.Fatalf("Cannot create file: %q", err)
os.Exit(1)
}
_, err = io.Copy(goFile, data)
if err != nil {
log.Fatalf("Error while writing file: %q", err)
os.Exit(1)
}
os.Exit(0)
}
func writeDataToGoFile(data []bankinfo.BankInfo) (io.Reader, error) {
t, err := template.New("bank_data").Parse(dataTemplate)
if err != nil {
return nil, errors.WithMessage(err, "error while parsing template")
}
var buf bytes.Buffer
err = t.Execute(&buf, data)
if err != nil {
return nil, errors.WithMessage(err, "error while executing template")
}
formattedBytes, err := format.Source(buf.Bytes())
if err != nil {
return nil, errors.WithMessage(err, "error while formatting source file")
}
return bytes.NewReader(formattedBytes), nil
}
const dataTemplate = `// Code generated by cmd/bankdata_parser DO NOT EDIT.
package bankinfo
var data = []BankInfo{
{{range $element := .}}{
BankID: "{{.BankID}}",
BIC: "{{.BIC}}",
VersionNumber: "{{.VersionNumber}}",
URL: "{{.URL}}",
VersionName: "{{.VersionName}}",
Institute: {{.Institute | printf "%q" }},
City: "{{.City}}",
LastChanged: "{{.LastChanged}}",
},
{{end}}
}`
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