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- exit godoc w/o crashing if negative tabwidth is provided

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- minor related cleanups

R=rsc
http://go/go-review/1025026
This commit is contained in:
Robert Griesemer 2009-11-08 23:42:00 -08:00
parent 8b04ceff62
commit aae64f8c81
1 changed files with 9 additions and 10 deletions
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15
src/cmd/godoc/main.go
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@ -143,16 +143,13 @@ func main() {
flag.Usage = usage;
flag.Parse();
// Check usage first; get usage message out early.
switch {
case *httpaddr != "":
if flag.NArg() != 0 {
usage();
}
default:
if flag.NArg() == 0 {
// Check usage: either server and no args, or command line and args
if (*httpaddr != "") != (flag.NArg() == 0) {
usage();
}
if *tabwidth < 0 {
log.Exitf("negative tabwidth %d", *tabwidth);
}
if err := os.Chdir(goroot); err != nil {
@ -168,8 +165,10 @@ func main() {
log.Stderrf("Go Documentation Server\n");
log.Stderrf("address = %s\n", *httpaddr);
log.Stderrf("goroot = %s\n", goroot);
log.Stderrf("cmdroot = %s\n", *cmdroot);
log.Stderrf("pkgroot = %s\n", *pkgroot);
log.Stderrf("tmplroot = %s\n", *tmplroot);
log.Stderrf("tabwidth = %d\n", *tabwidth);
handler = loggingHandler(handler);
}