| // Copyright 2018 The Bazel Authors. All rights reserved. |
| // |
| // 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. |
| |
| // builder implements most of the actions for Bazel to compile and link |
| // go code. We use a single binary for most actions, since this reduces |
| // the number of inputs needed for each action and allows us to build |
| // multiple related files in a single action. |
| |
| package main |
| |
| import ( |
| "log" |
| "os" |
| ) |
| |
| func main() { |
| log.SetFlags(0) |
| log.SetPrefix("builder: ") |
| |
| args, _, err := expandParamsFiles(os.Args[1:]) |
| if err != nil { |
| log.Fatal(err) |
| } |
| if len(args) == 0 { |
| log.Fatalf("usage: %s verb options...", os.Args[0]) |
| } |
| verb, rest := args[0], args[1:] |
| |
| var action func(args []string) error |
| switch verb { |
| case "asm": |
| action = asm |
| case "compile": |
| action = compile |
| case "compilepkg": |
| action = compilePkg |
| case "cover": |
| action = cover |
| case "filterbuildid": |
| action = filterBuildID |
| case "gentestmain": |
| action = genTestMain |
| case "link": |
| action = link |
| case "gennogomain": |
| action = genNogoMain |
| case "pack": |
| action = pack |
| case "stdlib": |
| action = stdlib |
| case "stdliblist": |
| action = stdliblist |
| default: |
| log.Fatalf("unknown action: %s", verb) |
| } |
| log.SetPrefix(verb + ": ") |
| |
| if err := action(rest); err != nil { |
| log.Fatal(err) |
| } |
| } |