Add the 'diffburst' tool, which does the following:
Reads the output of 'diff -r' and splits it into separate patch files, one per file. The files are named 'patch-XX' where XX is aa, ab, ac, ... Useful when creating ports.
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# $Id: README,v 1.13 1998/12/15 16:51:48 cracauer Exp $
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# $Id: README,v 1.14 1998/12/17 12:21:19 cracauer Exp $
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This directory is for tools.
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@ -22,3 +22,6 @@ tcl_bmake Generates a bmake Makefile for src/lib/libtcl.
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upgrade Scripts used for upgrading an installed system.
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vop_table Generates a HTML document that shows all the VOP's in
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the kernel.
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diffburst Reads the output of 'diff -r' and splits it into separate
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patch files, one per file. The files are named 'patch-XX'
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where XX is aa, ab, ac, ... Useful when creating ports.
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tools/tools/diffburst/Makefile
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tools/tools/diffburst/Makefile
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# $Id: Makefile,v 1.1 1997/12/06 00:44:04 archie Exp $
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PROG= diffburst
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SRCS= main.c
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MAN1= diffburst.1
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COPTS+= -g -Wall
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.include <bsd.prog.mk>
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tools/tools/diffburst/diffburst.1
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tools/tools/diffburst/diffburst.1
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.Dd Jan 7, 1999
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.Dt DIFFBURST 1
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.Os BSD 4.4
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.Sh NAME
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.Nm diffburst
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.Nd split recursive diff output into separate files
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.Sh SYNOPSIS
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.Nm diffburst < input
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.Sh DESCRIPTION
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.Nm
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reads the output of a recursive diff from standard input,
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and writes it back out as a series of patchfiles, where each patchfile
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contains the diff for a single file. The files are named
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patch-aa, patch-ab, and so on.
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.Pp
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This program is intended to aid in developing FreeBSD ports,
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where the 'one patchfile per file' rule applies.
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.Sh AUTHOR
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Archie Cobbs <archie@whistle.com>
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44
tools/tools/diffburst/main.c
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tools/tools/diffburst/main.c
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <err.h>
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/* Split a recursive diff into sub-patches to satisfy the requirement
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that each patch only patch a single file */
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int
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main(int ac, char *av[])
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{
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int ln;
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char line[8192];
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char suf[2] = { 'a', 'a' };
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FILE *fp = NULL;
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memset(line, 0, sizeof(line));
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for (ln = 1; fgets(line, sizeof(line) - 1, stdin); ln++)
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{
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if (line[strlen(line) - 1] != '\n')
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errx(1, "line %d is too long", ln);
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if (!strncmp(line, "diff", 4) && fp != NULL)
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{
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fclose(fp);
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fp = NULL;
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}
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if (fp == NULL)
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{
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char name[200];
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snprintf(name, sizeof(name), "patch-%c%c", suf[0], suf[1]);
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if (suf[1]++ == 'z')
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{
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suf[1] = 'a';
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suf[0]++;
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}
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if ((fp = fopen(name, "w")) == NULL)
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err(1, "%s", name);
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}
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fprintf(fp, "%s", line);
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}
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return(0);
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}
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