From 59a47732dd2273f7077cb717d4aedf8c3d64aa5a Mon Sep 17 00:00:00 2001 From: Gustavo Niemeyer Date: Tue, 1 Feb 2011 12:12:51 -0500 Subject: exec: use custom error for LookPath Make the error message and the needed action more obvious when a command isn't found to obtain the source code of a project. Users seem to strugle with the existing wording in practice. R=rsc CC=golang-dev https://golang.org/cl/4058047 --- src/pkg/exec/exec.go | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'src/pkg/exec/exec.go') diff --git a/src/pkg/exec/exec.go b/src/pkg/exec/exec.go index ba9bd2472a..4f4c8c7770 100644 --- a/src/pkg/exec/exec.go +++ b/src/pkg/exec/exec.go @@ -7,6 +7,7 @@ package exec import ( "os" + "strconv" ) // Arguments to Run. @@ -29,6 +30,16 @@ type Cmd struct { Pid int } +// PathError records the name of a binary that was not +// found on the current $PATH. +type PathError struct { + Name string +} + +func (e *PathError) String() string { + return "command " + strconv.Quote(e.Name) + " not found in $PATH" +} + // Given mode (DevNull, etc), return file for child // and file to record in Cmd structure. func modeToFiles(mode, fd int) (*os.File, *os.File, os.Error) { -- cgit v1.3