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|
#!/bin/bash
# check for packages that need to be built, and build a list in the proper build order
# Details:
# https://github.com/archlinux32/builder/wiki/Build-system#get-package-updates
# TODOs:
# additional to blacklisted packages ignore any packages depending on them
# be more secure in case of update while build(s) is/are still in progress
# -> (stale) lock files, moving loop lock files
. "${0%/*}/../conf/default.conf"
# Create a lock file for build list.
exec 9> "${lock_file}"
flock -n 9 || exit
# Update git repositories (official packages, community packages and the repository of package customizations).
for repo in "${repo_paths[@]}"; do
git -C "${repo}" clean -df
git -C "${repo}" checkout master
git -C "${repo}" pull
done
# Read previous git revision numbers from files.
declare -A old_repo_revisions
declare -A new_repo_revisions
for repo in "${!repo_paths[@]}"; do
old_repo_revisions["${repo}"]="$(
cat "${work_dir}/${repo}.revision" 2> /dev/null || \
echo NONE
)"
new_repo_revisions["${repo}"]="$(
git -C "${repo_paths["${repo}"]}" rev-parse HEAD | \
tee "${work_dir}/${repo}.revision.new"
)"
done
echo 'Check modified packages from the last update, and put them to the build list.'
# Check modified packages from the last update, and put them to the build list.
# If a package is updated, but already on the rebuild list, then just update the git revision number.
# If a package is deleted, remove from the rebuild list, and add it to the deletion list.
# If a new package is added, then ensure that it's not on the deletion list.
cp "${work_dir}/build-list"{,.new}
cp "${work_dir}/deletion-list"{,.new}
(
for repo in "${!repo_paths[@]}"; do
(
# if old revision unknown, mimic "git diff"-output
if [ "${old_repo_revisions["${repo}"]}" == "NONE" ]; then
git -C "${repo_paths["${repo}"]}" archive --format=tar HEAD | \
tar -t | \
sed 's|^|A\t|'
else
git -C "${repo_paths["${repo}"]}" diff --no-renames --name-status "${old_repo_revisions["${repo}"]}" HEAD
fi
) | \
# only track changes in PKGBUILDs
grep '/PKGBUILD$' | \
if [ "${repo}" == "archlinux32" ]; then
# modify the directory structure from the modifiaction-repository
# to the one of an original source repository
sed 's|^\(.\t\)\([^/]\+\)/\([^/]\+\)/\(.\+\)$|\2 \1\3/repos/\2-x86_64/\4|' | \
while read -r pkg_repo rest; do
echo "${new_repo_revisions["$(find_git_repository_to_package_repository "${pkg_repo}")"]} ${rest}"
done
else
sed "s|^|${new_repo_revisions["${repo}"]} |"
fi | \
grep '^\S\+ .\s[^/]\+/repos/[^/]\+/PKGBUILD$' | \
# ignore i686
grep -v -- '-i686/PKGBUILD$' | \
sed 's|^\(\S\+\) \(.\)\t\([^/]\+\)/repos/\([^/]\+\)-[^/-]\+/PKGBUILD$|\2 \3 \1 \4|' | \
# ignore staging and testing
grep -v '\(staging\|testing\)$'
done | \
sort -u
# ignore blacklisted packages by explicitely deleting them _at_the_end_
sed "s|^\(.*\)\$|D \1 ${new_repo_revisions["archlinux32"]} archlinux32|" "${repo_paths["archlinux32"]}/blacklist"
) | \
while read -r mode package git_revision repository; do
case "${mode}" in
# new or modified PKGBUILD
"A"|"M")
sed -i "/^${package} /d" "${work_dir}/build-list"
echo "${package} ${git_revision} ${new_repo_revisions["archlinux32"]} ${repository}" >> \
"${work_dir}/build-list.new"
sed -i "/^${package}\$/d" "${work_dir}/deletion-list.new"
;;
# deleted PKGBUILD
"D")
echo "${package}" >> \
"${work_dir}/deletion-list.new"
sed -i "/^${package} /d" "${work_dir}/build-list.new"
;;
*)
>&2 echo "unknown git diff mode '${mode}'"
exit 1
;;
esac
done
echo 'Extract dependencies of packages.'
# Put the list in the proper build order.
# First, we extract the dependencies of each package.
mkdir -p "${work_dir}/package-infos"
rm -f "${work_dir}/build-order"
touch "${work_dir}/build-order"
while read -r package git_revision mod_git_revision repository; do
PKGBUILD="$(find_pkgbuild "${package}" "${repository}")"
if [ ! -r "${PKGBUILD}" ]; then
echo "can't find PKGBUILD to package '${package}' from repository '${repository}': '${PKGBUILD}'"
exit 1
fi
# delete cached values of old versions of this PKGBUILD
ls -1 "${work_dir}/package-infos/${package}-"* 2> /dev/null | \
sed 's|^.*/||' | \
grep "^${package}"'\.\([0-9a-f]\{40\}\.\)\{2\}\(builds\|needs\)$' | \
grep -v "^${package}\.${git_revision}\.${new_repo_revisions["archlinux32"]}"'\.\(builds\|needs\)$' | \
while read file; do
rm "${work_dir}/package-infos/${file}"
done
# extract infos from PKGBUILD if not existent yet
if [ ! -e "${work_dir}/package-infos/${package}.${git_revision}.${new_repo_revisions["archlinux32"]}.builds" ] || \
[ ! -e "${work_dir}/package-infos/${package}.${git_revision}.${new_repo_revisions["archlinux32"]}.needs" ]; then
(
cd "${PKGBUILD%/*}"
mksrcinfo -o "${work_dir}/package-infos/${package}.${git_revision}.${new_repo_revisions["archlinux32"]}.SRCINFO"
)
# extract "builds" = provides \cup pkgname
grep '^\('$'\t''provides\|pkgname\) = ' "${work_dir}/package-infos/${package}.${git_revision}.${new_repo_revisions["archlinux32"]}.SRCINFO" | \
cut -d= -f2 | \
sed 's|^\s\+||; s|[<>]$||' | \
sort -u > \
"${work_dir}/package-infos/${package}.${git_revision}.${new_repo_revisions["archlinux32"]}.builds"
# extract "needs" = ( makedepends \cup checkdepends ) \setminus "builds"
(
(
# this would include runtime dependencies, too:
# sed -n '/^pkgname = /q;/^'$'\t''depends = /p' "${work_dir}/package-infos/${package}.${git_revision}.${new_repo_revisions["archlinux32"]}.SRCINFO"
grep '^'$'\t''\(makedepends\|checkdepends\) = ' "${work_dir}/package-infos/${package}.${git_revision}.${new_repo_revisions["archlinux32"]}.SRCINFO"
) | \
cut -d= -f2 | \
sed 's|^\s\+||; s|[<>]$||' | \
sort -u
cat "${work_dir}/package-infos/${package}.${git_revision}.${new_repo_revisions["archlinux32"]}.builds" | \
sed 'p'
) | \
sort | \
uniq -u > \
"${work_dir}/package-infos/${package}.${git_revision}.${new_repo_revisions["archlinux32"]}.needs"
rm "${work_dir}/package-infos/${package}.${git_revision}.${new_repo_revisions["archlinux32"]}.SRCINFO"
fi
# add "$pkgname -> $build-target" to build-order list
while read target; do
echo "${package} ${target}" >> \
"${work_dir}/build-order"
done < "${work_dir}/package-infos/${package}.${git_revision}.${new_repo_revisions["archlinux32"]}.builds"
# add "$dependency -> $pkgname" to build-order list
while read dependency; do
echo "${dependency} ${package}" >> \
"${work_dir}/build-order"
done < "${work_dir}/package-infos/${package}.${git_revision}.${new_repo_revisions["archlinux32"]}.needs"
done < "${work_dir}/build-list.new"
echo 'Now actually sort it.'
(
# this part will have the correct build order, but all the infos are missing
tsort "${work_dir}/build-order" 2> "${work_dir}/tsort.error" | \
nl -ba | \
awk '{print $1 " not-git also-not-git whatever " $2}'
# this part has all the infos, but possibly the wrong order
awk '{print "0 " $2 " " $3 " " $4 " " $1}' < \
"${work_dir}/build-list.new"
) | \
sort -k5,5 -k1nr | \
# now, we have the correct order and the infos, but in adjacent lines
uniq -f4 -D | \
sed '/^0 /d;N;s|\n| |' | \
# now in one line, each
sort -k1n,1 | \
awk '{print $5 " " $7 " " $8 " " $9}' > \
"${work_dir}/build-list.new.new"
rm -f "${work_dir}/build-order.loops/*"
if [ -s "${work_dir}/tsort.error" ]; then
>&2 echo 'WARNING: There is a dependency cycle!'
>&2 cat "${work_dir}/tsort.error"
>&2 echo
>&2 echo 'I will continue anyway.'
# save loops in separate files each, so breaking them is easier
awk '
/^tsort: \S+: input contains a loop:$/{
n++;
getline
}
{
print $2 >"'"${work_dir}"'/build-list.loops/loop_" n
}
' "${work_dir}/tsort.error"
else
rm "${work_dir}/tsort.error"
fi
# Move the .new-files to the actual files
(
echo "build-list.new" "build-list" "deletion-list"
echo "${!repo_paths[@]}" | \
sed 's@\( \|$\)@.revision\1@g'
) | \
tr ' ' '\n' | \
while read -r file; do
mv "${work_dir}/${file}.new" "${work_dir}/${file}"
done
# Remove the lock file
rm -f "${lock_file}"
|
