Re: grep -r: add default "."

[Thomas Klausner <wiz%NetBSD.org@localhost>]

On Fri, Sep 02, 2022 at 07:08:23PM +0200, Thomas Klausner wrote:
> I'd like the change the behaviour to match what GNU grep does.

Since I saw only positive feedback, here's my proposed patch.
Comments?

Cheers,
 Thomas

? bin/.gdbinit
? bin/grep
? bin/grep.html1
? bin/grep.info
Index: dist/doc/grep.1
===================================================================
RCS file: /cvsroot/src/external/gpl2/grep/dist/doc/grep.1,v
retrieving revision 1.2
diff -u -r1.2 grep.1
--- dist/doc/grep.1	10 Jan 2016 22:16:40 -0000	1.2
+++ dist/doc/grep.1	3 Sep 2022 09:05:35 -0000
@@ -2,7 +2,7 @@
 .\"
 .\" grep man page
 .\"d Id: grep.1,v 1.23 2002/01/22 13:20:04 bero Exp 
-.TH GREP 1 "June 16 2003" "GNU Project"
+.TH GREP 1 "September 3 2022" "GNU Project"
 .SH NAME
 grep, egrep, fgrep \- print lines matching a pattern
 .SH SYNOPSIS
@@ -312,6 +312,11 @@
 this is equivalent to the
 .B "\-d recurse"
 option.
+If no
+.IR FILE
+is given,
+.BR grep
+searches the current working directory.
 .TP
 .BR "\fR \fP \-\^\-include=" PATTERN
 Recurse in directories only searching file matching
Index: dist/src/grep.c
===================================================================
RCS file: /cvsroot/src/external/gpl2/grep/dist/src/grep.c,v
retrieving revision 1.4
diff -u -r1.4 grep.c
--- dist/src/grep.c	28 Dec 2021 19:22:58 -0000	1.4
+++ dist/src/grep.c	3 Sep 2022 09:05:36 -0000
@@ -1765,9 +1765,10 @@
   else
     {
       if (directories == RECURSE_DIRECTORIES) {
-	error (0, 0, _("warning: recursive search of stdin"));
+	status = grepfile(".", &stats_base);
+      } else {
+	status = grepfile ((char *) NULL, &stats_base);
       }
-      status = grepfile ((char *) NULL, &stats_base);
     }
 
   /* We register via atexit() to test stdout.  */