| package main |
| |
| import ( |
| "fmt" |
| "os/exec" |
| "path/filepath" |
| "regexp" |
| "strings" |
| ) |
| |
| // Func is a make function. |
| // http://www.gnu.org/software/make/manual/make.html#Functions |
| // TODO(ukai): *Evaluator -> eval context or so? |
| // TODO(ukai): return error instead of panic? |
| type Func func(*Evaluator, string) string |
| |
| // http://www.gnu.org/software/make/manual/make.html#File-Name-Functions |
| func funcWildcard(_ *Evaluator, arg string) string { |
| Log("wildcard %q", arg) |
| files, err := filepath.Glob(arg) |
| if err != nil { |
| panic(err) |
| } |
| return strings.Join(files, " ") |
| } |
| |
| // http://www.gnu.org/software/make/manual/make.html#Shell-Function |
| func funcShell(_ *Evaluator, arg string) string { |
| Log("shell %q", arg) |
| args := []string{"/bin/sh", "-c", arg} |
| cmd := exec.Cmd{ |
| Path: args[0], |
| Args: args, |
| } |
| out, err := cmd.CombinedOutput() |
| if err != nil { |
| panic(err) |
| } |
| re, err := regexp.Compile(`\s`) |
| if err != nil { |
| panic(err) |
| } |
| return string(re.ReplaceAllString(string(out), " ")) |
| } |
| |
| // http://www.gnu.org/software/make/manual/make.html#Make-Control-Functions |
| func funcWarning(ev *Evaluator, arg string) string { |
| Log("warning %q", arg) |
| fmt.Printf("%s:%d: %s\n", ev.filename, ev.lineno, arg) |
| return "" |
| } |