diff options
| -rw-r--r-- | .gitignore | 2 | ||||
| -rw-r--r-- | src/runtime/debug/debug.go | 81 |
2 files changed, 77 insertions, 6 deletions
diff --git a/.gitignore b/.gitignore index 9994ee3dc..7c2f12b31 100644 --- a/.gitignore +++ b/.gitignore @@ -1,3 +1,5 @@ +.DS_Store +.vscode go.work go.work.sum diff --git a/src/runtime/debug/debug.go b/src/runtime/debug/debug.go index 763117313..38e6ab763 100644 --- a/src/runtime/debug/debug.go +++ b/src/runtime/debug/debug.go @@ -1,6 +1,17 @@ -// Package debug is a dummy package that is not yet implemented. +// Portions copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package debug is a very partially implemented package to allow compilation. package debug +import ( + "fmt" + "runtime" + "strconv" + "strings" +) + // SetMaxStack sets the maximum amount of memory that can be used by a single // goroutine stack. // @@ -27,16 +38,17 @@ func Stack() []byte { // // Not implemented. func ReadBuildInfo() (info *BuildInfo, ok bool) { - return nil, false + return &BuildInfo{GoVersion: runtime.Compiler + runtime.Version()}, true } // BuildInfo represents the build information read from // the running binary. type BuildInfo struct { - Path string // The main package path - Main Module // The module containing the main package - Deps []*Module // Module dependencies - Settings []BuildSetting + GoVersion string // version of the Go toolchain that built the binary, e.g. "go1.19.2" + Path string // The main package path + Main Module // The module containing the main package + Deps []*Module // Module dependencies + Settings []BuildSetting } type BuildSetting struct { @@ -58,3 +70,60 @@ type Module struct { func SetGCPercent(n int) int { return n } + +// Start of stolen from big go. TODO: import/reuse without copy pasta. + +// quoteKey reports whether key is required to be quoted. +func quoteKey(key string) bool { + return len(key) == 0 || strings.ContainsAny(key, "= \t\r\n\"`") +} + +// quoteValue reports whether value is required to be quoted. +func quoteValue(value string) bool { + return strings.ContainsAny(value, " \t\r\n\"`") +} + +func (bi *BuildInfo) String() string { + buf := new(strings.Builder) + if bi.GoVersion != "" { + fmt.Fprintf(buf, "go\t%s\n", bi.GoVersion) + } + if bi.Path != "" { + fmt.Fprintf(buf, "path\t%s\n", bi.Path) + } + var formatMod func(string, Module) + formatMod = func(word string, m Module) { + buf.WriteString(word) + buf.WriteByte('\t') + buf.WriteString(m.Path) + buf.WriteByte('\t') + buf.WriteString(m.Version) + if m.Replace == nil { + buf.WriteByte('\t') + buf.WriteString(m.Sum) + } else { + buf.WriteByte('\n') + formatMod("=>", *m.Replace) + } + buf.WriteByte('\n') + } + if bi.Main != (Module{}) { + formatMod("mod", bi.Main) + } + for _, dep := range bi.Deps { + formatMod("dep", *dep) + } + for _, s := range bi.Settings { + key := s.Key + if quoteKey(key) { + key = strconv.Quote(key) + } + value := s.Value + if quoteValue(value) { + value = strconv.Quote(value) + } + fmt.Fprintf(buf, "build\t%s=%s\n", key, value) + } + + return buf.String() +} |