cbmk/include/git.sh

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# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2020,2021,2023,2024 Leah Rowe <leah@libreboot.org>
# SPDX-FileCopyrightText: 2022 Caleb La Grange <thonkpeasant@protonmail.com>
eval "$(setvars "" _target rev _xm loc url bkup_url depend tree_depend xtree)"
fetch_project_trees()
{
_target="${target}"
[ -d "src/${project}/${project}" ] || fetch_from_upstream
fetch_config
if [ -d "src/${project}/${tree}" ]; then
printf "download/%s %s (%s): exists\n" \
"${project}" "${tree}" "${_target}" 1>&2
return 0
fi
prepare_new_tree
}
fetch_from_upstream()
{
[ -d "src/${project}/${project}" ] && return 0
x_ mkdir -p "src/${project}"
fetch_project_repo "${project}"
}
fetch_config()
{
rm -f "${cfgsdir}/"*/seen || $err "fetch_config ${cfgsdir}: !rm seen"
eval "$(setvars "" xtree tree_depend)"
while true; do
eval "$(setvars "" rev tree)"
_xm="fetch_config ${project}/${_target}"
load_target_config "${_target}"
[ "${_target}" = "${tree}" ] && break
_target="${tree}"
done
[ -n "$tree_depend" ] && [ "$tree_depend" != "$tree" ] && \
x_ ./update trees -f "$project" "$tree_depend"; return 0
}
load_target_config()
{
[ -f "$cfgsdir/$1/target.cfg" ] || $err "$1: target.cfg missing"
[ -f "${cfgsdir}/${1}/seen" ] && \
$err "${_xm} check: infinite loop in tree definitions"
. "$cfgsdir/$1/target.cfg" || $err "load_target_config !$cfgsdir/$1"
touch "$cfgsdir/$1/seen" || $err "load_config $cfgsdir/$1: !mk seen"
}
prepare_new_tree()
{
printf "Creating %s tree %s (%s)\n" "$project" "$tree" "$_target"
cp -R "src/${project}/${project}" "${tmpgit}" || \
$err "prepare_new_tree ${project}/${tree}: can't make tmpclone"
git_prep "$PWD/$cfgsdir/$tree/patches" "src/$project/$tree" "update"
nukeblobs "$project/$tree" "$project/$tree"
}
fetch_project_repo()
{
eval "$(setvars "" xtree tree_depend)"
scan_config "${project}" "config/git"
[ -z "${loc+x}" ] && $err "fetch_project_repo $project: loc not set"
[ -z "${url+x}" ] && $err "fetch_project_repo $project: url not set"
clone_project
[ -z "${depend}" ] || for d in ${depend} ; do
x_ ./update trees -f ${d}
done
rm -Rf "${tmpgit}" || $err "fetch_repo: !rm -Rf ${tmpgit}"
for x in config/git/*; do
[ -f "${x}" ] && nukeblobs "${x##*/}" "src/${x##*/}"; continue
done
}
clone_project()
{
loc="${loc#src/}"
loc="src/${loc}"
if [ -d "${loc}" ]; then
printf "%s already exists, so skipping download\n" "$loc" 1>&2
return 0
fi
git clone $url "$tmpgit" || git clone $bkup_url "$tmpgit" \
|| $err "clone_project: could not download ${project}"
git_prep "$PWD/config/$project/patches" "$loc"
}
git_prep()
{
_patchdir="$1"
_loc="$2"
[ -z "${rev+x}" ] && $err "git_prep $_loc: rev not set"
git -C "$tmpgit" reset --hard $rev || $err "git -C $_loc: !reset $rev"
git_am_patches "$tmpgit" "$_patchdir" || $err "!am $_loc $_patchdir"
if [ "$project" = "coreboot" ] && [ $# -gt 2 ]; then
[ ! -f "$tmpgit/.gitmodules" ] || git -C "$tmpgit" submodule \
update --init || $err "git_prep $_loc: !submod"
if [ "$project" = "coreboot" ] && [ -n "$xtree" ] && \
[ "$xtree" != "$tree" ]; then
(
cd "$tmpgit/util" || $err "prep $_loc: !cd $tmpgit/util"
rm -Rf crossgcc || $err "prep $_loc: !rm xgcc"
ln -s "../../$xtree/util/crossgcc" crossgcc || \
$err "prep $_loc: can't create xgcc symlink"
) || $err "prep $_loc: can't create xgcc symlink"
fi
fi
[ "$_loc" = "${_loc%/*}" ] || x_ mkdir -p "${_loc%/*}"
mv "$tmpgit" "$_loc" || $err "git_prep: !mv $tmpgit $_loc"
[ -n "$xtree" ] && [ ! -d "src/coreboot/$xtree" ] && \
x_ ./update project trees -f coreboot "$xtree"; return 0
}
git_am_patches()
{
for _patch in "$2/"*; do
[ -L "$_patch" ] || [ ! -f "$_patch" ] || git -C "$1" am \
"$_patch" || $err "git_am $1 $2: !git am $_patch"; continue
done
for _patches in "$2/"*; do
[ ! -L "$_patches" ] && [ -d "$_patches" ] && \
git_am_patches "$1" "$_patches"; continue
done
}
# can delete from multi- and single-tree projects.
# called from build_projects() and handle_src_tree() on script/update/trees
nukeblobs()
{
del="n"
pjcfgdir="${1%/}"
pjsrcdir="${2%/}"
pjsrcdir="${pjsrcdir#src/}"
[ ! -f "config/${pjcfgdir}/blobs.list" ] && return 0
while read -r blobfile; do
rmf="$(realpath "src/${pjsrcdir}/${blobfile}" 2>/dev/null)" || \
continue
[ -L "${rmf}" ] && continue # we will delete the actual file
[ "${rmf#${PWD}/src/${pjsrcdir}}" = "${rmf}" ] && continue
[ "${rmf#${PWD}/src/}" = "${pjsrcdir}" ] && continue
rmf="${rmf#${PWD}/}"
[ -e "${rmf}" ] || continue
del="y"
rm -Rf "${rmf}" || \
$err "nukeblobs ${pjcfgdir}/blobs: can't rm \"${blobfile}\""
printf "nukeblobs %s: deleted \"%s\"\n" "${pjcfgdir}" "${rmf}"
done < "config/${pjcfgdir}/blobs.list"
[ "${del}" = "y" ] && return 0
printf "nukeblobs %s: no defined blobs exist in dir, src/%s\n" 1>&2 \
"${pjcfgdir}" "${pjsrcdir}"
printf "(this is not an error)\n"
}