| // Copyright 2017 The LUCI Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package main |
| |
| import ( |
| "encoding/json" |
| "fmt" |
| "os" |
| |
| "github.com/maruel/subcommands" |
| |
| "go.chromium.org/luci/auth" |
| "go.chromium.org/luci/common/api/gitiles" |
| "go.chromium.org/luci/common/errors" |
| gitilespb "go.chromium.org/luci/common/proto/gitiles" |
| ) |
| |
| func cmdRefs(authOpts auth.Options) *subcommands.Command { |
| return &subcommands.Command{ |
| UsageLine: "refs repository refspath", |
| ShortDesc: "resolves each ref in a repo to git revision", |
| LongDesc: `Resolves each ref in a repo to git revision. |
| |
| refspath limits which refs to resolve to only those matching {refspath}/*. |
| refspath should start with "refs" and should not include glob '*'. |
| Typically, "refs/heads" should be used.`, |
| CommandRun: func() subcommands.CommandRun { |
| c := refsRun{} |
| c.commonFlags.Init(authOpts) |
| c.Flags.StringVar(&c.jsonOutput, "json-output", "", "Path to write operation results to.") |
| return &c |
| }, |
| } |
| } |
| |
| type refsRun struct { |
| commonFlags |
| jsonOutput string |
| } |
| |
| func (c *refsRun) Parse(a subcommands.Application, args []string) error { |
| switch err := c.commonFlags.Parse(); { |
| case err != nil: |
| return err |
| case len(args) != 2: |
| return errors.New("exactly 2 position arguments are expected") |
| default: |
| return nil |
| } |
| } |
| |
| func (c *refsRun) main(a subcommands.Application, args []string) error { |
| ctx := c.defaultFlags.MakeLoggingContext(os.Stderr) |
| |
| host, project, err := gitiles.ParseRepoURL(args[0]) |
| if err != nil { |
| return errors.Annotate(err, "invalid repo URL %q", args[0]).Err() |
| } |
| |
| authCl, err := c.createAuthClient() |
| if err != nil { |
| return err |
| } |
| g, err := gitiles.NewRESTClient(authCl, host, true) |
| if err != nil { |
| return err |
| } |
| |
| res, err := g.Refs(ctx, &gitilespb.RefsRequest{ |
| Project: project, |
| RefsPath: args[1], |
| }) |
| if err != nil { |
| return err |
| } |
| |
| if c.jsonOutput == "" { |
| for k, v := range res.Revisions { |
| fmt.Printf("%s %s\n", v, k) |
| } |
| return nil |
| } |
| |
| out := os.Stdout |
| if c.jsonOutput != "-" { |
| out, err = os.Create(c.jsonOutput) |
| if err != nil { |
| return err |
| } |
| defer out.Close() |
| } |
| |
| data, err := json.MarshalIndent(res.Revisions, "", " ") |
| if err != nil { |
| return err |
| } |
| _, err = out.Write(data) |
| return err |
| } |
| |
| func (c *refsRun) Run(a subcommands.Application, args []string, _ subcommands.Env) int { |
| if err := c.Parse(a, args); err != nil { |
| fmt.Fprintf(a.GetErr(), "%s: %s\n", a.GetName(), err) |
| return 1 |
| } |
| if err := c.main(a, args); err != nil { |
| fmt.Fprintf(a.GetErr(), "%s: %s\n", a.GetName(), err) |
| return 1 |
| } |
| return 0 |
| } |