Date: Sat, 14 Nov 1998 20:50:02 +0100 From: Wolfram Schneider <wosch@panke.de.freebsd.org> To: current@FreeBSD.ORG Subject: sort option for find Message-ID: <19981114205002.A27346@panke.de.freebsd.org>
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I want add a sort option to find(1).
The sort option make it possible to build the locate
database without large (usually 20-100MB) temp files.
`find -s /dir' is a little bit slower than `find /dir | sort'. I don't
think users care if locate.updated runs 5% longer if they save
disk space and error mails.
-s The -s option cause find to traverse the file hierarchies in lex-
icographical order. The output will be sorted too.
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Index: find.1
===================================================================
RCS file: /a/ncvs/src/usr.bin/find/find.1,v
retrieving revision 1.15
diff -u -r1.15 find.1
--- find.1 1998/05/15 11:22:36 1.15
+++ find.1 1998/11/14 19:27:39
@@ -44,7 +44,7 @@
.Sh SYNOPSIS
.Nm find
.Op Fl H | Fl L | Fl P
-.Op Fl Xdx
+.Op Fl Xdsx
.Op Fl f Ar file
.Op Ar file ...
.Ar expression
@@ -121,6 +121,13 @@
to traverse.
File hierarchies may also be specified as the operands immediately
following the options.
+.It Fl s
+The
+.Fl s
+option cause
+.Nm find
+to traverse the file hierarchies in lexicographical order. The
+output will be sorted too.
.It Fl x
The
.Fl x
Index: find.c
===================================================================
RCS file: /a/ncvs/src/usr.bin/find/find.c,v
retrieving revision 1.4
diff -u -r1.4 find.c
--- find.c 1997/03/11 13:48:23 1.4
+++ find.c 1998/11/14 18:43:09
@@ -50,6 +50,8 @@
#include "find.h"
+static int find_compare(const FTSENT **s1, const FTSENT **s2);
+
/*
* find_formplan --
* process the command line and create a "plan" corresponding to the
@@ -140,6 +142,19 @@
}
FTS *tree; /* pointer to top of FTS hierarchy */
+extern int sflag;
+
+/*
+ * find_compare --
+ * A function which be used in fts_open() to order the
+ * traversal of the hierarchy.
+ * This function give you a lexicographical sorted output.
+ */
+static int find_compare(s1, s2)
+ const FTSENT **s1, **s2;
+{
+ return strcoll( (*s1)->fts_name, (*s2)->fts_name );
+}
/*
* find_execute --
@@ -155,7 +170,8 @@
PLAN *p;
int rval;
- if ((tree = fts_open(paths, ftsoptions, (int (*)())NULL)) == NULL)
+ if ((tree = fts_open(paths, ftsoptions,
+ (sflag ? find_compare : NULL) )) == NULL)
err(1, "ftsopen");
for (rval = 0; (entry = fts_read(tree)) != NULL;) {
Index: main.c
===================================================================
RCS file: /a/ncvs/src/usr.bin/find/main.c,v
retrieving revision 1.6
diff -u -r1.6 main.c
--- main.c 1997/05/19 18:16:29 1.6
+++ main.c 1998/11/14 18:23:19
@@ -66,6 +66,7 @@
int isdepth; /* do directories on post-order visit */
int isoutput; /* user specified output operator */
int isxargs; /* don't permit xargs delimiting chars */
+int sflag; /* travel the file hierarchy lexicographical order */
static void usage __P((void));
@@ -84,7 +85,7 @@
p = start = argv;
Hflag = Lflag = 0;
ftsoptions = FTS_NOSTAT | FTS_PHYSICAL;
- while ((ch = getopt(argc, argv, "HLPXdf:x")) != -1)
+ while ((ch = getopt(argc, argv, "HLPXdf:sx")) != -1)
switch (ch) {
case 'H':
Hflag = 1;
@@ -105,6 +106,9 @@
break;
case 'f':
*p++ = optarg;
+ break;
+ case 's':
+ sflag = 1;
break;
case 'x':
ftsoptions |= FTS_XDEV;
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