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package vfs
import (
"context"
"strconv"
log "github.com/sirupsen/logrus"
"gitlab.com/gitlab-org/gitlab-pages/metrics"
)
// VFS abstracts the things Pages needs to serve a static site from disk.
type VFS interface {
Root(ctx context.Context, path string) (Root, error)
}
func Instrumented(fs VFS, name string) VFS {
return &instrumentedVFS{fs: fs, name: name}
}
type instrumentedVFS struct {
fs VFS
name string
}
func (i *instrumentedVFS) increment(operation string, err error) {
metrics.VFSOperations.WithLabelValues(i.name, operation, strconv.FormatBool(err == nil)).Inc()
}
func (i *instrumentedVFS) log() *log.Entry {
return log.WithField("vfs", i.name)
}
func (i *instrumentedVFS) Root(ctx context.Context, path string) (Root, error) {
root, err := i.fs.Root(ctx, path)
i.increment("Root", err)
i.log().
WithField("path", path).
WithError(err).
Traceln("Root call")
if err != nil {
return nil, err
}
return &instrumentedRoot{root: root, name: i.name, rootPath: path}, nil
}
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