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change file extension in spool #55

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Merged
fogfish merged 1 commit into from
Nov 13, 2025
Merged

change file extension in spool #55

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14 changes: 12 additions & 2 deletions spool/spool.go
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ import (
"log/slog"
"path/filepath"
"regexp"
"strings"

"github.com/fogfish/opts"
"github.com/fogfish/stream"
Expand Down Expand Up @@ -63,8 +64,11 @@ var (
// spool skips error, continue as warning
WithSkipError = withStrict(skiperror)

// spool applies to files
// spool files matching the pattern
WithPattern = opts.ForName[Spool, string]("pattern")

// output files with new extension
WithFileExt = opts.ForName[Spool, string]("ext")
)

// Spool file writer
Expand All @@ -76,6 +80,7 @@ type Spool struct {
mutable int
strict int
pattern string
ext string
}

func New(reader, writer FileSystem, opt ...opts.Option[Spool]) *Spool {
Expand Down Expand Up @@ -175,7 +180,12 @@ func (spool *Spool) apply(ctx context.Context, path string, f Writer) (rerr erro
}
defer rfd.Close()

wfd, err := spool.writer.Create(path, nil)
target := path
if len(spool.ext) > 0 {
target = strings.TrimSuffix(target, filepath.Ext(target)) + spool.ext
}

wfd, err := spool.writer.Create(target, nil)
if err != nil {
return err
}
Expand Down
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