From e4b48676a7bde19b4c898cda17a05f8b1c4b09ed Mon Sep 17 00:00:00 2001
From: Michael Olbrich <m.olbrich@pengutronix.de>
Date: Fri, 8 Oct 2010 17:53:42 +0200
Subject: [get] add md5sum checking for downloaded archives

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
---
 scripts/lib/ptxd_make_world_check_src.sh | 104 +++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 scripts/lib/ptxd_make_world_check_src.sh

(limited to 'scripts/lib/ptxd_make_world_check_src.sh')

diff --git a/scripts/lib/ptxd_make_world_check_src.sh b/scripts/lib/ptxd_make_world_check_src.sh
new file mode 100644
index 000000000..2dc118000
--- /dev/null
+++ b/scripts/lib/ptxd_make_world_check_src.sh
@@ -0,0 +1,104 @@
+#!/bin/bash
+#
+# Copyright (C) 2010 by Michael Olbrich <m.olbrich@pengutronix.de>
+#
+# See CREDITS for details about who has contributed to this project.
+#
+# For further information about the PTXdist project and license conditions
+# see the README file.
+#
+
+#
+# check if a file is the makefile for a specific package
+#
+# $1: package name
+# $2: file name
+#
+ptxd_is_pkg_makefile() {
+    local pkg="$1"
+    local file="$2"
+
+    grep -q -e "^[A-Z_]*PACKAGES\(-\$(PTXCONF_[^)]*)\)* += ${pkg}$" "${file}"
+}
+export -f ptxd_is_pkg_makefile
+
+
+#
+# find the makefile for the current package
+#
+# $1: package name
+#
+ptxd_find_pkg_makefile() {
+    local pkg="$1"
+    local rulesfiles="${ptx_state_dir}/ptx_dgen_rulesfiles.make"
+    local ignore
+
+    if ptxd_get_path "${ptx_path_rules//://${pkg_label}.make }"; then
+	if ptxd_is_pkg_makefile "${pkg}" "${ptxd_reply}"; then
+	    return
+	fi
+    fi
+    while read ignore ptxd_reply; do
+	if ptxd_is_pkg_makefile "${pkg}" "${ptxd_reply}"; then
+	    return
+	fi
+    done < "${rulesfiles}"
+    return 1
+}
+export -f ptxd_find_pkg_makefile
+
+#
+# try to update the md5sum of the current package
+# this only works if the makefile contains a "<PKG>_MD5 := ..." line.
+#
+ptxd_make_world_update_md5() {
+    local PKG="$(ptxd_name_to_NAME "${pkg_label}")"
+    set -- $(md5sum "${pkg_src}")
+    local md5="${1}"
+
+    local PKG_MD5="PTXCONF_${PKG}_MD5"
+    for conf in "${PTXDIST_PLATFORMCONFIG}" "${PTXDIST_PTXCONFIG}"; do
+	if [ $(grep "^${PKG_MD5}=\"" "${conf}" 2> /dev/null | wc -l) = 1 ]; then
+	    sed -i "s/^${PKG_MD5}=\".*$/${PKG_MD5}=\"${md5}\"/" "${conf}"
+	    ptxd_warning "New checksum for ${pkg_label}: ${md5} in $(ptxd_print_path "${conf}")"
+	    return
+	fi
+    done
+    local makefile
+    if ! ptxd_find_pkg_makefile "${pkg_label}"; then
+	ptxd_bailout "Could not update md5sum for '${pkg_label}': makefile not found"
+    else
+	makefile="${ptxd_reply}"
+    fi
+    local count=$(grep "\<${PKG}_MD5[ 	]*:=" "${makefile}" 2> /dev/null | wc -l)
+    if [ "${count}" -gt 1 ]; then
+	ptxd_bailout "Could not update md5sum for '${pkg_label}': ${PKG}_MD5 found ${count} times in '$(ptxd_print_path ${makefile})'."
+    fi
+    sed -i "s/^\(\<${PKG}_MD5[ 	]*:=\) *[a-f0-9]*\$/\1 ${md5}/" "${makefile}"
+    if ! grep -q "${md5}\$" "${makefile}"; then
+	ptxd_bailout "Could not update md5sum for '${pkg_label}': ${PKG}_MD5 not found"
+    fi
+    ptxd_warning "New checksum for ${pkg_label}: ${md5} in $(ptxd_print_path "${makefile}")"
+}
+export -f ptxd_make_world_update_md5
+
+#
+# verify the md5sum of the source file of the current package
+#
+ptxd_make_world_check_src() {
+    ptxd_make_world_init &&
+
+    if [ -z "${pkg_src}" ]; then
+        return
+    fi
+    ptxd_make_check_src_impl "${pkg_src}" "${pkg_md5}" && return
+
+    if [ "${PTXCONF_SETUP_CHECK}" = "update" ]; then
+	ptxd_make_world_update_md5
+    elif [ -z "${pkg_md5}" ]; then
+	ptxd_bailout "md5sum for '${pkg_label}' (${pkg_src}) missing."
+    else
+	ptxd_bailout "Wrong md5sum for '${pkg_label}' (${pkg_src})"
+    fi
+}
+export -f ptxd_make_world_check_src
-- 
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