var foldPath = make(map[string]string)
+// DefaultExecName returns the default executable name
+// for a package with the import path importPath.
+//
+// The default executable name is the last element of the import path.
+// In module-aware mode, an additional rule is used. If the last element
+// is a vN path element specifying the major version, then the second last
+// element of the import path is used instead.
+func DefaultExecName(importPath string) string {
+ _, elem := pathpkg.Split(importPath)
+ if cfg.ModulesEnabled {
+ // If this is example.com/mycmd/v2, it's more useful to install it as mycmd than as v2.
+ // See golang.org/issue/24667.
+ isVersion := func(v string) bool {
+ if len(v) < 2 || v[0] != 'v' || v[1] < '1' || '9' < v[1] {
+ return false
+ }
+ for i := 2; i < len(v); i++ {
+ if c := v[i]; c < '0' || '9' < c {
+ return false
+ }
+ }
+ return true
+ }
+ if isVersion(elem) {
+ _, elem = pathpkg.Split(pathpkg.Dir(importPath))
+ }
+ }
+ return elem
+}
+
// load populates p using information from bp, err, which should
// be the result of calling build.Context.Import.
func (p *Package) load(stk *ImportStack, bp *build.Package, err error) {
}
_, elem := filepath.Split(p.Dir)
if cfg.ModulesEnabled {
- // NOTE(rsc): Using p.ImportPath instead of p.Dir
+ // NOTE(rsc,dmitshur): Using p.ImportPath instead of p.Dir
// makes sure we install a package in the root of a
// cached module directory as that package name
// not name@v1.2.3.
// even for non-module-enabled code,
// but I'm not brave enough to change the
// non-module behavior this late in the
- // release cycle. Maybe for Go 1.12.
+ // release cycle. Can be done for Go 1.13.
// See golang.org/issue/26869.
- _, elem = pathpkg.Split(p.ImportPath)
-
- // If this is example.com/mycmd/v2, it's more useful to install it as mycmd than as v2.
- // See golang.org/issue/24667.
- isVersion := func(v string) bool {
- if len(v) < 2 || v[0] != 'v' || v[1] < '1' || '9' < v[1] {
- return false
- }
- for i := 2; i < len(v); i++ {
- if c := v[i]; c < '0' || '9' < c {
- return false
- }
- }
- return true
- }
- if isVersion(elem) {
- _, elem = pathpkg.Split(pathpkg.Dir(p.ImportPath))
- }
+ elem = DefaultExecName(p.ImportPath)
}
full := cfg.BuildContext.GOOS + "_" + cfg.BuildContext.GOARCH + "/" + elem
if cfg.BuildContext.GOOS != base.ToolGOOS || cfg.BuildContext.GOARCH != base.ToolGOARCH {
"go/build"
"os"
"os/exec"
- "path"
"path/filepath"
"runtime"
"strings"
pkgs := load.PackagesForBuild(args)
if len(pkgs) == 1 && pkgs[0].Name == "main" && cfg.BuildO == "" {
- _, cfg.BuildO = path.Split(pkgs[0].ImportPath)
+ cfg.BuildO = load.DefaultExecName(pkgs[0].ImportPath)
cfg.BuildO += cfg.ExeSuffix
}
if len(patterns) == 0 && len(pkgs) == 1 && pkgs[0].Name == "main" {
// Compute file 'go build' would have created.
// If it exists and is an executable file, remove it.
- _, targ := filepath.Split(pkgs[0].ImportPath)
+ targ := load.DefaultExecName(pkgs[0].ImportPath)
targ += cfg.ExeSuffix
if filepath.Join(pkgs[0].Dir, targ) != pkgs[0].Target { // maybe $GOBIN is the current directory
fi, err := os.Stat(targ)