From e092fc352ad393a4d2f1f7fa641df2d23572ccff Mon Sep 17 00:00:00 2001 From: "Bryan C. Mills" Date: Mon, 24 Feb 2020 11:27:38 -0500 Subject: cmd/go/internal/modload: record the replacement for the module containing package main in BuildInfo Fixes #37392 Change-Id: I2cb051e6f556b0af95e059611dda3f62e7c1f21a Reviewed-on: https://go-review.googlesource.com/c/go/+/220645 Run-TryBot: Bryan C. Mills TryBot-Result: Gobot Gobot Reviewed-by: Jay Conrod --- src/runtime/debug/mod.go | 51 ++++++++++++++++++++++++++++-------------------- 1 file changed, 30 insertions(+), 21 deletions(-) (limited to 'src/runtime/debug') diff --git a/src/runtime/debug/mod.go b/src/runtime/debug/mod.go index 837cd689a0..0381bdcc53 100644 --- a/src/runtime/debug/mod.go +++ b/src/runtime/debug/mod.go @@ -47,9 +47,27 @@ func readBuildInfo(data string) (*BuildInfo, bool) { repLine = "=>\t" ) - info := &BuildInfo{} + readEntryFirstLine := func(elem []string) (Module, bool) { + if len(elem) != 2 && len(elem) != 3 { + return Module{}, false + } + sum := "" + if len(elem) == 3 { + sum = elem[2] + } + return Module{ + Path: elem[0], + Version: elem[1], + Sum: sum, + }, true + } - var line string + var ( + info = &BuildInfo{} + last *Module + line string + ok bool + ) // Reverse of cmd/go/internal/modload.PackageBuildInfo for len(data) > 0 { i := strings.IndexByte(data, '\n') @@ -63,42 +81,33 @@ func readBuildInfo(data string) (*BuildInfo, bool) { info.Path = elem case strings.HasPrefix(line, modLine): elem := strings.Split(line[len(modLine):], "\t") - if len(elem) != 3 { + last = &info.Main + *last, ok = readEntryFirstLine(elem) + if !ok { return nil, false } - info.Main = Module{ - Path: elem[0], - Version: elem[1], - Sum: elem[2], - } case strings.HasPrefix(line, depLine): elem := strings.Split(line[len(depLine):], "\t") - if len(elem) != 2 && len(elem) != 3 { + last = new(Module) + info.Deps = append(info.Deps, last) + *last, ok = readEntryFirstLine(elem) + if !ok { return nil, false } - sum := "" - if len(elem) == 3 { - sum = elem[2] - } - info.Deps = append(info.Deps, &Module{ - Path: elem[0], - Version: elem[1], - Sum: sum, - }) case strings.HasPrefix(line, repLine): elem := strings.Split(line[len(repLine):], "\t") if len(elem) != 3 { return nil, false } - last := len(info.Deps) - 1 - if last < 0 { + if last == nil { return nil, false } - info.Deps[last].Replace = &Module{ + last.Replace = &Module{ Path: elem[0], Version: elem[1], Sum: elem[2], } + last = nil } } return info, true -- cgit v1.3