From 30f4f0b7648cc54754bd26aeb997c98bc97eda91 Mon Sep 17 00:00:00 2001
From: Florian Pritz <bluewind@xinu.at>
Date: Tue, 4 Feb 2014 19:12:14 +0100
Subject: check the pkgbuild before adding stuff to the repo

Signed-off-by: Florian Pritz <bluewind@xinu.at>
---
 db-functions | 49 ++++++++++++++++++++++++++++++++++++++++++++++++-
 db-update    |  5 +++++
 2 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/db-functions b/db-functions
index 9ee3ee0..70c0ddf 100644
--- a/db-functions
+++ b/db-functions
@@ -464,9 +464,40 @@ arch_repo_remove() {
 	REPO_MODIFIED=1
 }
 
+check_pkgfile_pkgbuild() {
+	local pkgfile="${1}"
+	local _pkgbase="$(getpkgbase ${pkgfile})"
+	[ $? -ge 1 ] && return 1
+	local _pkgname="$(getpkgname ${pkgfile})"
+	[ $? -ge 1 ] && return 1
+	local _pkgver="$(getpkgver ${pkgfile})"
+	[ $? -ge 1 ] && return 1
+	local _pkgarch="$(getpkgarch ${pkgfile})"
+	[ $? -ge 1 ] && return 1
+
+	if [ ! -f "${WORKDIR}/pkgbuilds/${repo}-${_pkgarch}/${_pkgbase}" ]; then
+		mkdir -p "${WORKDIR}/pkgbuilds/${repo}-${_pkgarch}"
+		get_file_from_pkgrepo "$_pkgbase" PKGBUILD \
+			> "${WORKDIR}/pkgbuilds/${repo}-${_pkgarch}/${_pkgbase}"
+		[ $? -ge 1 ] && return 1
+	fi
+
+	local pkgbuild_ver="$(. "${WORKDIR}/pkgbuilds/${repo}-${_pkgarch}/${_pkgbase}"; echo $(get_full_version ${epoch:-0} ${pkgver} ${pkgrel}) )"
+	[ "${pkgbuild_ver}" == "${_pkgver}" ] || return 1
+
+	local pkgbuild_names=($(. "${WORKDIR}/pkgbuilds/${repo}-${_pkgarch}/${_pkgbase}"; echo ${pkgname[@]}))
+	in_array "${_pkgname}" ${pkgbuild_names[@]} || return 1
+
+	return 0
+}
+
 arch_add_to_pool() {
 	local pkgfile="$1"
 	if [ -f "${pkgfile}" ]; then
+		if ! check_pkgfile_pkgbuild "$pkgfile"; then
+			warning "package $pkgfile failed check against PKGBUILD. skipping"
+			return 0
+		fi
 		mv "${pkgfile}" "$FTP_BASE/${PKGPOOL}"
 	fi
 
@@ -489,7 +520,8 @@ arch_db_add() {
 		local srcfile="$FTP_BASE/${PKGPOOL}/${pkgfile}"
 
 		if [[ ! -f "${srcfile}" ]]; then
-			die "Package file ${pkgfile} not found in ${FTP_BASE}/${PKGPOOL}"
+			warning "Package file ${pkgfile} not found in ${FTP_BASE}/${PKGPOOL}. skipping"
+			return 0
 		else
 			msg "Adding $pkgfile to [$repo]-$tarch..."
 		fi
@@ -577,3 +609,18 @@ pkgentry_from_db() {
 
 	return 1
 }
+
+# get_file_from_pkgrepo pkgbase filename
+#
+# Get a file from the package's git/svn/whatever repo.
+#
+# Implementation note: This function should be the only one directly
+# interacting with the given VCS and should automatically detect
+# where a pkgbase is stored if multiple VCSs are used.
+get_file_from_pkgrepo() {
+	local pkgbase="$1"
+	local filename="$2"
+
+	# TODO: implement svn/git extraction
+	curl -s https://projects.archlinux.org/svntogit/community.git/plain/trunk/$filename?h=packages/$pkgbase
+}
diff --git a/db-update b/db-update
index 54aecaa..52ed996 100755
--- a/db-update
+++ b/db-update
@@ -77,6 +77,11 @@ for repo in ${repos[@]}; do
 				rm "$pkgfile_arch"
 			fi
 		done
+
+		if [[ ${#pkgs_to_add[@]} = 0 ]]; then
+			continue
+		fi
+
 		arch_db_add $repo "$pkgarch" "${pkgs_to_add[@]}"
 	done
 done
-- 
cgit v1.2.3-24-g4f1b