forked from ns1/jsonschema2go
/
print.go
76 lines (68 loc) · 1.59 KB
/
print.go
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package print
import (
"context"
"fmt"
"github.com/jwilner/jsonschema2go/internal/planning"
"github.com/jwilner/jsonschema2go/pkg/gen"
"log"
"os"
"path/filepath"
"sync"
)
func Print(
ctx context.Context,
printer Printer,
grouped map[string][]gen.Plan,
prefixes [][2]string,
) error {
var childRoutines sync.WaitGroup
defer childRoutines.Wait()
var cncl context.CancelFunc
ctx, cncl = context.WithCancel(ctx)
defer cncl()
mapper := planning.PrefixMapper(prefixes)
errs := make(chan error, len(grouped))
for k, group := range grouped {
childRoutines.Add(1)
go func(k string, group []gen.Plan) {
defer childRoutines.Done()
err := func() error {
path := mapper(k)
if path == "" {
return fmt.Errorf("unable to map go path: %q", k)
}
if err := os.MkdirAll(path, 0755); err != nil {
return fmt.Errorf("unable to create dir %q: %w", path, err)
}
p := filepath.Join(path, "values.gen.go")
f, err := os.Create(p)
if err != nil {
return fmt.Errorf("unable to open: %w", err)
}
defer f.Close()
if err := printer.Print(ctx, f, k, group); err != nil {
return fmt.Errorf("unable to print %v %v: %w", p, k, err)
}
if gen.IsDebug(ctx) {
log.Printf("printer: successfully printed %d plans to %v", len(group), p)
}
return nil
}();
select {
case errs <- err:
case <-ctx.Done():
}
}(k, group)
}
for range grouped { // we know there are len(grouped) routines to wait for
select {
case <-ctx.Done():
return ctx.Err()
case err := <-errs:
if err != nil {
return err
}
}
}
return nil
}