From fc9fc69007b61cf12b96e7be8e33000c99c857e6 Mon Sep 17 00:00:00 2001
From: Trevor Johnson <trevor@FreeBSD.org>
Date: Fri, 12 Mar 2004 18:56:53 +0000
Subject: [PATCH] script for finding "size mismatch" and "size unknown" errors

---
 Tools/scripts/checksize.sh | 58 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100755 Tools/scripts/checksize.sh

diff --git a/Tools/scripts/checksize.sh b/Tools/scripts/checksize.sh
new file mode 100755
index 000000000000..38af931d564d
--- /dev/null
+++ b/Tools/scripts/checksize.sh
@@ -0,0 +1,58 @@
+#!/bin/sh
+# checksize.sh:  scan the ports collection for "size mismatch" and
+# "size unknown" errors by attempting to fetch onto a full filesystem
+#
+# When called with a parameter that is the name of a category of
+# ports, the script checks that category, then checks the whole
+# ports collection, redoing the named category.  When called with
+# no parameter, it checks the whole collection.
+#
+# First do something like:
+#
+#	dd if=/dev/zero of=/usr/ports/mfs.img bs=1k count=512
+#	mdconfig -a -t vnode -f /usr/ports/mfs.img -u 1
+#	newfs /dev/md1
+#	mount /dev/md1 /mnt
+#	dd if=/dev/zero of=/mnt/zero
+#
+# (for RELENG_4 use vnconfig instead of mdconfig).  Then run this
+# while logging with, for example, the "script" utility and look
+# for "size mismatch" (indicating the server has a distfile with a
+# different size than what is listed in the distinfo file) and "size
+# unknown" (indicating that the server does not report file sizes)
+# errors in the output.  Pipe the output through:
+#
+# 	grep -w size | grep -1 -E "unknown|mismatch"
+#
+# By keeping the filesystem full, we avoid fetching entire distfiles.
+# The script attempts to partially download each distfile from all
+# master sites.  Contacting all sites is desirable because sometimes
+# a site which ostensibly mirrors another may contain corrupt files
+# which are intact on the main site (or vice versa).
+#
+# bugs:
+# - assumes ports tree is in /usr/ports/
+# - doesn't provide for checking only particular categories or ports
+# - support for multiple architectures is inefficient
+# - output is messy
+# - on my system, the first 20 kB of each distfile are fetched
+# - needs manual setup of /mnt/
+#
+# placed in the public domain by Trevor Johnson
+
+for category in $1 `grep ^SUBDIR /usr/ports/Makefile | cut -f3 -d\ `; do
+	cd /usr/ports/$category
+	for port in \
+		`grep -wc SIZE */distinfo* | grep -v :0 | cut -f1 -d\/`; do
+		cd /usr/ports/$category/$port
+		for arc in i386; do
+			echo checking $arc size data for $category/$port
+			make	DISTDIR=/mnt \
+				ARCH=$arc \
+				BATCH=yes \
+				MACHINE_ARCH=$arc \
+				PACKAGE_BUILDING=yes \
+				TRYBROKEN=yes checksum
+		done
+	done
+done