go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/logdog/common/viewer/url.go (about)

     1  // Copyright 2016 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  // Package viewer is a support library to interact with the LogDog web app and
    16  // log stream viewer.
    17  package viewer
    18  
    19  import (
    20  	"fmt"
    21  	"net/url"
    22  
    23  	"go.chromium.org/luci/logdog/common/types"
    24  )
    25  
    26  // LogDogViewerURLTag is a special LogDog tag that is recognized by the LogDog
    27  // viewer as a link back to the source of the log stream (usually a build page).
    28  const LogDogViewerURLTag = "logdog.viewer_url"
    29  
    30  // GetURL generates a LogDog app viewer URL for the specified streams.
    31  // Uses the plain-text endpoint for single stream paths, and the client-side endpoint for multi-stream paths.
    32  func GetURL(host string, project string, paths ...types.StreamPath) string {
    33  	values := make([]string, len(paths))
    34  	for i, p := range paths {
    35  		values[i] = fmt.Sprintf("%s/%s", project, p)
    36  	}
    37  	u := url.URL{
    38  		Scheme: "https",
    39  		Host:   host,
    40  	}
    41  	if len(values) == 1 {
    42  		u.Path = "logs/" + values[0]
    43  	} else {
    44  		u.Path = "v/"
    45  		u.RawQuery = url.Values{
    46  			"s": values,
    47  		}.Encode()
    48  	}
    49  	return u.String()
    50  }