blob: c4e6b7f72c7eb9b2004b89767b4bf892c8a6cede [file] [log] [blame]
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package frontend
import (
"context"
"errors"
"golang.org/x/pkgsite/internal"
"golang.org/x/pkgsite/internal/derrors"
"golang.org/x/pkgsite/internal/log"
)
// GetLatestMajorVersion returns the major version of a package or module.
// If a module isn't found from the series path or an error ocurs, an empty string is returned
// It is intended to be used as an argument to middleware.LatestVersions.
func (s *Server) GetLatestMajorVersion(ctx context.Context, seriesPath string) string {
mv, err := s.getDataSource(ctx).GetLatestMajorVersion(ctx, seriesPath)
if err != nil {
if !errors.Is(err, derrors.NotFound) {
log.Errorf(ctx, "GetLatestMajorVersion: %v", err)
}
return ""
}
return mv
}
// GetLatestMinorVersion returns the latest minor version of the package or module.
// The linkable form of the minor version is returned and is an empty string on error.
// It is intended to be used as an argument to middleware.LatestVersions.
func (s *Server) GetLatestMinorVersion(ctx context.Context, packagePath, modulePath, pageType string) string {
// It is okay to use a different DataSource (DB connection) than the rest of the
// request, because this makes a self-contained call on the DB.
v, err := latestMinorVersion(ctx, s.getDataSource(ctx), packagePath, modulePath, pageType)
if err != nil {
// We get NotFound errors from directories; they clutter the log.
if !errors.Is(err, derrors.NotFound) {
log.Errorf(ctx, "GetLatestMinorVersion: %v", err)
}
return ""
}
return v
}
// TODO(https://github.com/golang/go/issues/40107): this is currently tested in server_test.go, but
// we should add tests for this function.
func latestMinorVersion(ctx context.Context, ds internal.DataSource, packagePath, modulePath, pageType string) (_ string, err error) {
defer derrors.Wrap(&err, "latestMinorVersion(ctx, %q, %q)", modulePath, packagePath)
fullPath := packagePath
if pageType == pageTypeModule || pageType == pageTypeStdLib {
fullPath = modulePath
}
um, err := ds.GetUnitMeta(ctx, fullPath, modulePath, internal.LatestVersion)
if err != nil {
return "", err
}
return linkVersion(um.Version, um.ModulePath), nil
}