go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/cv/internal/configs/prjcfg/util.go (about)

     1  // Copyright 2020 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 prjcfg
    16  
    17  import (
    18  	"fmt"
    19  	"net/url"
    20  
    21  	cfgpb "go.chromium.org/luci/cv/api/config/v2"
    22  )
    23  
    24  // GerritHost returns Gerrit host.
    25  //
    26  // Panics if config is not valid.
    27  func GerritHost(cfg *cfgpb.ConfigGroup_Gerrit) string {
    28  	u := cfg.GetUrl()
    29  	if u == "" {
    30  		panic("invalid config: missing Gerrit URL")
    31  	}
    32  	switch p, err := url.Parse(u); {
    33  	case err != nil:
    34  		panic(fmt.Errorf("invalid config: bad Gerrit URL %q: %s", u, err))
    35  	case p.Scheme == "":
    36  		// Catch "x.y.z", which url.Parse rightly interprets as Path, not Host.
    37  		panic(fmt.Errorf("invalid config: bad Gerrit URL %q: missing scheme", u))
    38  	default:
    39  		return p.Hostname()
    40  	}
    41  }