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main.go
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main.go
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package main
import (
"archive/zip"
"flag"
"fmt"
"io"
"log"
"os"
"os/exec"
"path/filepath"
"strconv"
"strings"
"github.com/qdesrame/fit/cmd/fitgen/internal/fitstringer"
"github.com/qdesrame/fit/cmd/fitgen/internal/profile"
)
const (
workbookNameXLS = "Profile.xls"
workbookNameXLSX = "Profile.xlsx"
)
func main() {
handleHRSTQuirk := flag.Bool(
"hrst",
false,
"handle quirk where needed 'heart rate source type' field not set as active in official profile spreadsheet",
)
sdkOverride := flag.String(
"sdk",
"",
"provide or override SDK version printed in generated code",
)
timestamp := flag.Bool(
"timestamp",
false,
"add generation timestamp to generated code",
)
runTests := flag.Bool(
"test",
false,
"run all tests in output directory after code has been generated",
)
verbose := flag.Bool(
"verbose",
false,
"print verbose debugging output for profile parsing and code generation",
)
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "usage: fitgen [flags] [path to sdk zip, xls or xlsx file] [output directory]\n")
flag.PrintDefaults()
}
flag.Parse()
if flag.NArg() != 2 {
flag.Usage()
os.Exit(2)
}
l := log.New(os.Stdout, "fitgen:\t", 0)
fitSrcDir := flag.Arg(1)
l.Println("fit source output directory:", fitSrcDir)
var (
messagesOut = filepath.Join(fitSrcDir, "messages.go")
typesOut = filepath.Join(fitSrcDir, "types.go")
profileOut = filepath.Join(fitSrcDir, "profile.go")
typesStringOut = filepath.Join(fitSrcDir, "types_string.go")
)
var (
inputData []byte
input = flag.Arg(0)
inputExt = filepath.Ext(input)
err error
)
switch inputExt {
case ".zip":
inputData, err = readDataFromZIP(input)
case ".xls", ".xlsx":
inputData, err = readDataFromXLSX(input)
if *sdkOverride == "" {
log.Fatal("-sdk flag required if input is .xls(x)")
}
default:
l.Fatalln("input file must be of type [.zip | .xls | .xlsx], got:", inputExt)
}
if err != nil {
l.Fatal(err)
}
genOptions := []profile.GeneratorOption{
profile.WithGenerationTimestamp(*timestamp),
profile.WithLogger(l),
}
if *handleHRSTQuirk {
genOptions = append(genOptions, profile.WithHandleHeartRateSourceTypeQuirk())
}
if *verbose {
genOptions = append(genOptions, profile.WithDebugOutput())
}
var sdkString string
if *sdkOverride != "" {
sdkString = *sdkOverride
} else {
sdkString = parseSDKVersionStringFromZipFilePath(input)
}
sdkMaj, sdkMin, err := parseMajorAndMinorSDKVersion(sdkString)
if err != nil {
l.Fatalln("error parsing sdk version:", err)
}
generator, err := profile.NewGenerator(sdkMaj, sdkMin, inputData, genOptions...)
if err != nil {
l.Fatal(err)
}
fitProfile, err := generator.GenerateProfile()
if err != nil {
l.Fatal(err)
}
if err = os.WriteFile(typesOut, fitProfile.TypesSource, 0o600); err != nil {
l.Fatalf("typegen: error writing types output file: %v", err)
}
if err = os.WriteFile(messagesOut, fitProfile.MessagesSource, 0o600); err != nil {
l.Fatalf("typegen: error writing messages output file: %v", err)
}
if err = os.WriteFile(profileOut, fitProfile.ProfileSource, 0o600); err != nil {
l.Fatalf("typegen: error writing profile output file: %v", err)
}
l.Println("fitstringer: generating string methods for types")
err = runStringerOnTypes(typesOut, typesStringOut, fitProfile.StringerInput)
if err != nil {
l.Fatal(err)
}
l.Println("fitstringer: done")
logMesgNumVsMessages(fitProfile.MesgNumsWithoutMessage, l)
if *runTests {
err = runAllTests(fitSrcDir)
if err != nil {
l.Fatal(err)
}
l.Println("go test: pass")
}
l.Println("done")
}
func runStringerOnTypes(typesIn, typesStringOut string, fitTypes []string) error {
output, err := fitstringer.Generate(fitTypes, typesIn)
if err != nil {
return fmt.Errorf("fitstringer: generation failed: %w", err)
}
if err := os.WriteFile(typesStringOut, output, 0o600); err != nil {
return fmt.Errorf("error writing fitstringer output: %w", err)
}
return nil
}
func runAllTests(pkgDir string) error {
goTestArgs := []string{"test", pkgDir}
testCmd := exec.Command("go", goTestArgs...)
output, err := testCmd.CombinedOutput()
if err != nil {
return fmt.Errorf("go test: fail: %w\n%s", err, output)
}
return nil
}
func logMesgNumVsMessages(msgs []string, l *log.Logger) {
if len(msgs) == 0 {
return
}
l.Println("mesgnum-vs-msgs: implementation detail below, this may be automated in the future")
l.Println("mesgnum-vs-msgs: #mesgnum values != #generated messages, diff:", len(msgs))
l.Println("mesgnum-vs-msgs: remember to add/verify map entries for sdk in sdk.go for the following message(s):")
for _, msg := range msgs {
l.Printf("mesgnum-vs-msgs: ----> mesgnum %q has no corresponding message\n", msg)
}
}
func readDataFromZIP(path string) ([]byte, error) {
r, err := zip.OpenReader(path)
if err != nil {
return nil, fmt.Errorf("error opening sdk zip file: %w", err)
}
defer r.Close()
wfile := scanForWorkbook(r.File)
if wfile == nil {
return nil, fmt.Errorf(
"no file named %q or %q found in zip archive",
workbookNameXLS, workbookNameXLSX,
)
}
rc, err := wfile.Open()
if err != nil {
return nil, fmt.Errorf("error opening zip archive: %w", err)
}
defer rc.Close()
data, err := io.ReadAll(rc)
if err != nil {
return nil, fmt.Errorf("error reading %q from archive: %w", wfile.Name, err)
}
return data, nil
}
func scanForWorkbook(files []*zip.File) *zip.File {
for _, f := range files {
if strings.HasSuffix(f.Name, workbookNameXLS) || strings.HasSuffix(f.Name, workbookNameXLSX) {
return f
}
}
return nil
}
func readDataFromXLSX(path string) ([]byte, error) {
data, err := os.ReadFile(path)
if err != nil {
return nil, fmt.Errorf("error reading file: %w", err)
}
return data, nil
}
func parseSDKVersionStringFromZipFilePath(path string) string {
_, file := filepath.Split(path)
ver := strings.TrimSuffix(file, ".zip")
return strings.TrimPrefix(ver, "FitSDKRelease_")
}
func parseMajorAndMinorSDKVersion(sdkString string) (int, int, error) {
splitted := strings.Split(sdkString, ".")
if len(splitted) < 2 {
return 0, 0, fmt.Errorf("could not parse major/minor version from input: %q", sdkString)
}
maj, err := strconv.Atoi(splitted[0])
if err != nil {
return 0, 0, fmt.Errorf("could not parse major version from input: %q", splitted[0])
}
min, err := strconv.Atoi(splitted[1])
if err != nil {
return 0, 0, fmt.Errorf("could not parse minor version from input: %q", splitted[1])
}
return maj, min, nil
}