From 939dc8492ae80858575db3e808baf18f5ab651a0 Mon Sep 17 00:00:00 2001
From: zbao <fishbaozi@gmail.com>
Date: Thu, 30 Apr 2015 04:44:07 +0800
Subject: crossgcc: Re-download the archive if it is incomplete

If the buildgcc is interrupt by Ctrl-C, probably part of
an archive is downloaded. If we run buildgcc again, the
incomplete archive would be considered as cached file
and skipped.

We check file hashes to see if the file is complete. If test
is failed, we need to delete the partially-downloaded file
and download it again.

sha1sum is quite different among the distributions.
Only Linux, Cygwin, Darwin have been tested.

Once new archive is deployed, a new checksum would be created,
which should be uploaded along with the script buildgcc.

Change-Id: Ibb1aa25a0374f774e1e643fe5e698de7bf7cc418
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/4511
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
---
 util/crossgcc/buildgcc | 41 ++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 40 insertions(+), 1 deletion(-)

(limited to 'util/crossgcc/buildgcc')

diff --git a/util/crossgcc/buildgcc b/util/crossgcc/buildgcc
index a29a338d9c..02a7d82cfa 100755
--- a/util/crossgcc/buildgcc
+++ b/util/crossgcc/buildgcc
@@ -125,6 +125,26 @@ searchtool()
 			fi
 		fi
 	fi
+	if [ "`echo $1 | cut -b -3`" = "sha" ]; then
+		if [ $UNAME = "FreeBSD" ]; then
+			if test -x "`which sha1 2>/dev/null`"; then
+				echo sha1
+				return
+			fi
+		fi
+		if [ $UNAME = "NetBSD" ]; then
+			if test -x "`which cksum 2>/dev/null`"; then
+				echo cksum -a `echo $1 | sed -e 's,sum,,'`
+				return
+			fi
+		fi
+		if [ $UNAME = "Darwin" ]; then
+			if test -x "`which openssl 2>/dev/null`"; then
+				echo openssl `echo $1 | sed -e 's,sum,,'`
+				return
+			fi
+		fi
+	fi
 	printf "${RED}ERROR:${red} Missing tool: Please install $1 (eg using your OS packaging system)${NC}\n" >&2
 	[ -z "$3" ] && exit 1
 	false
@@ -151,6 +171,10 @@ wait_for_build() {
 	true
 }
 
+SHA1SUM=`searchtool sha1sum`
+SHA512SUM=`searchtool sha512sum`
+CHECKSUM=$SHA1SUM
+
 cleanup()
 {
 	printf "Cleaning up temporary files... "
@@ -295,10 +319,25 @@ for ARCHIVE in $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE $LIBELF_ARCHIVE  \
 	    $IASL_ARCHIVE $PYTHON_ARCHIVE $EXPAT_ARCHIVE; do
 	FILE=`basename $ARCHIVE`
 	printf " * $FILE "
-	test -f tarballs/$FILE && printf "(cached)" || (
+
+	##create the sum
+	#test -f sum/$FILE.cksum || (
+	#	$CHECKSUM tarballs/$FILE > sum/$FILE.cksum
+	#	continue
+	#)
+
+	test -f tarballs/$FILE && \
+			(test -z "$CHECKSUM" || \
+			test "`cat sum/$FILE.cksum 2>/dev/null | sed -e 's,.*\([0-9a-f]\{40\}\).*,\1,'`" = "`$CHECKSUM tarballs/$FILE 2>/dev/null | sed -e 's,.*\([0-9a-f]\{40\}\).*,\1,'`" ) && \
+			printf "(cached)" || (
 		printf "(downloading)"
+		rm -f tarballs/$FILE
 		cd tarballs
 		wget --no-check-certificate -q $ARCHIVE
+		cd ..
+		test ! -f sum/$FILE.cksum && test -f tarballs/$FILE && \
+			(test -z "$CHECKSUM" || $CHECKSUM tarballs/$FILE > sum/$FILE.cksum ) && \
+			printf "(checksum created. ${RED}Note. Please upload sum/$FILE.cksum if the corresponding archive is upgraded.${NC})"
 	)
 	test -f tarballs/$FILE || \
 		printf "\n${RED}Failed to download $FILE.${NC}\n"
-- 
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