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|
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0-only
# (kgit-scc), (process a series of .scc files into a full repository)
# Copyright (c) 2008-2014 Wind River Systems, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# Example full build invocation:
#
# kgit scc -v \
# -I <path to>/kernel-cache \
# <path to kernel.org reference git repo> linux
#
# For consistent behaviour with "grep -w"
LC_ALL=C
export LC_ALL
path=`dirname $0`
. $path/kgit
PATH=`cd $path; pwd`:$PATH
# For consistent behaviour with "grep -w"
LC_ALL=C
export LC_ALL
usage()
{
cat <<EOF
kgit-scc [-e <dir>] [--prep <feat1 feat2 feat3>]
[-v] [-h] [-j <count>] [-I<dirs to search>]
<input> <output>
A front end to the 'series code compiler (scc)'. It facilitiates
using scc to build a complete repository or to search/interpret
.scc (source) files without actually building a tree.
-n : don't remove existing object files before
starting the build
-e <dir> : run executables and put the output in this
subdirectory directory of <output>
--src : find all of the source files (.scc) matching the pattern
<input> in the passed include directories
--prep: : features that should be used to prep a repository build
--meta-dir <metadir>: dir with meta content (default "meta")
--meta-branch <metabr>: branch to store meta content (default "meta")
-I <dirs> : directories to search for .scc files
-i <dirs> : directories to serach for source repos
-j : jobs. launch at most 'count' jobs when building the
repository. Default is 10.
<input> : base repository. if both input and output are passed, then
a full repository build is triggered.
<output>: directory in which to place the output of the compilation
-h: help
-v: verbose
EOF
}
wait_for_jobs()
{
local message="$1"
shift
local jlist="$@"
if [ -n "$jlist" ]; then
echo ""
echo " $message"
echo ""
wait $jlist
fi
}
search_includes()
{
search_expr=$1
parent_leaf=$2
for dir in $search_dirs; do
if [ -n "$tgt" ]; then
continue
fi
found=`find $dir/ -regex "$search_expr"`
if [ -n "$found" ]; then
for f in $found; do
if [ -n "$tgt" ]; then
continue
fi
if [ "$parent_leaf" != "any" ]; then
x=`grep -e ".*scc_leaf.*" -e ".*define.*KTYPE" $f`
if [ -n "$x" ]; then
echo "$x" | grep -q -w $parent_leaf
if [ $? -eq 0 ]; then
tgt=$f
fi
fi
else
tgt=$f
fi
done
fi
done
echo $tgt
}
# search for the descriptions (.scc files) for a list
# of features.
find_feature_descriptions()
{
flist=$@
out_list=""
for feat in $flist; do
# exact matches in the search directories for the passed
# list of features
f=`search_includes ".*/$feat" any`
if [ -n "$out_list" ]; then
out_list=`echo "$out_list"; echo "$f"`
else
out_list=`echo "$f"`
fi
done
echo "$out_list"
}
get_feat_list()
{
dir=$1
flist=$(find $dir -maxdepth 3 -regex '.*[a-zA-Z0-9_]*\.scc$')
flist=$(echo "$flist" | sort)
for f in $flist; do
grep -q ".*define.*KTYPE" $f
if [ $? -eq 0 ]; then
leaf_flist="$leaf_flist $f"
fi
done
echo "$leaf_flist"
}
# command line processing
search_dirs=
vlevel=0
while [ $# -gt 0 ]; do
case "$1" in
-v|--v)
verbose=t
vlevel=`expr $vlevel + 1`
;;
-e|--e)
exec_dir=$2
shift
;;
--init)
init=t
;;
--apply)
apply=t
;;
--compile)
compile=t
;;
--link)
link=t
;;
--exec)
exec=t
;;
--clean)
clean=t
;;
-j|--jobs)
jobs=$2
shift
;;
--meta-dir)
top_meta_dir="$2"
shift
;;
--src)
src=t
;;
--resume)
resume=t
;;
-n|--noclean|--nc)
noclean=t
;;
-I*|--I*) if [ "$1" == "-I" ] || [ "$1" == "--I" ]; then
x=$2; shift;
else
x=`echo $1 | sed s%^\-*I%%`
fi
search_dirs="$search_dirs $x"
inc_dirs="$inc_dirs -I $x"
;;
--prep) prep_features=$2
shift
;;
-i*|--i*) if [ "$1" == "-i" ] || [ "$1" == "--i" ]; then
x=$2; shift;
else
x=`echo $1 | sed s%^\-*i%%`
fi
repo_dir="$repo_dir -I $x"
;;
-h|--h|--help)
usage
exit;
;;
-*)
echo Invalid arg \"$1\".
usage
exit
;;
*)
break
;;
esac
shift
done
if [ -z "$1" ]; then
echo no args given. Try \"-h\".
usage
exit
fi
if [ -z "$jobs" ]; then
jobs=10
fi
use_per_build_obj_dir=t
if [ -z "$init" ] && [ -z "$apply" ] && [ -z "$compile" ] &&
[ -z "$link" ] && [ -z "$exec" ] && [ -z "$clean" ]; then
# nothing was indicated, so lets do it all!
init=t
compile=t
link=t
exec=t
apply=t
clean=t
fi
if [ -n "$verbose" ]; then
vflags="-v"
if [ $vlevel -eq 2 ]; then
vflags="-v -v"
fi
fi
# if just one parm is left, it is output.
# if two are passed, it is input and output and we
# trigger a full repo build
output=$1
if [ -n "$2" ]; then
input=$1
output=$2
full_build=t
fi
if [ -n "$resume" ]; then
if [ ! -d $output ]; then
echo ERROR: asked to resume but output dir \"$output\" does not exist
exit 1
fi
fi
if [ -z "$top_meta_dir" ]; then
top_meta_dir=meta
fi
if [ -z "$meta_branch" ]; then
meta_branch=meta
fi
meta_dir=$top_meta_dir/cfg/scratch
exec_dir=$meta_dir/obj
if [ -n "$src" ]; then
pattern=$output
for dir in $search_dirs; do
found=`find $dir/ -name "$pattern"`
if [ -n "$found" ]; then
for f in $found; do
tgt="$tgt $f"
done
fi
done
echo "$tgt"
# flee, we are done
exit 0
fi
if [ -n "$input" ] && [ ! -d "$input" ]; then
echo "ERROR. '$input' is not a directory"
exit
fi
if [ -n "$output" ] && [ ! -d "$output" ]; then
mkdir "$output"
if [ ! $? -eq 0 ]; then
echo "ERROR. '$output' is not a directory"
exit
fi
fi
echo ""
echo ""
phase_count=1
if [ -z "$clean" ]; then
if [ -z "$noclean" ]; then
# we are allowed to tidy up ...
echo " phase # $phase_count) cleaning existing object files"
if [ -d "$exec_dir" ]; then
rm -f $exec_dir
fi
let phase_count=$phase_count+1
fi
fi
# create the directory that will hold all of our work
if [ ! -d "$exec_dir" ]; then
mkdir -p $output/$exec_dir
fi
# find the base version from the kernel-caches
new_inc_dirs=
new_search_dirs=
echo " phase # $phase_count) migrating include dirs"
let phase_count=$phase_count+1
if [ -z "$resume" ]; then
for dir in $search_dirs; do
if [ -d $dir ]; then
if [ -e $dir/kver ]; then
base_ver=`cat $dir/kver`
else
echo WARNING: no file $dir/kver to set base version
fi
abs_dir=$(cd $dir; pwd)
last_dir=`basename $abs_dir`
echo " copying $dir to $output/$top_meta_dir/cfg"
(
mkdir -p $output/$top_meta_dir/cfg/$last_dir
cd $output/$top_meta_dir/cfg/$last_dir
tar -C $abs_dir --exclude=.git --exclude=docs -cpf - . | tar xpf - .
captured_dir=`pwd`
)
new_inc_dirs="$new_inc_dirs -I `cd $output/$top_meta_dir/cfg/$last_dir; pwd`"
new_search_dirs="$new_search_dirs `cd $output/$top_meta_dir/cfg/$last_dir; pwd`"
else
echo WARNING: search dir $dir does not exist
fi
done
else
# resuming
old_pwd=`pwd`
if [ ! -d $output/$top_meta_dir/cfg/ ]; then
echo ERROR: something evil happened: $output/$top_meta_dir/cfg/ is gone
exit 1
fi
cd $output/$top_meta_dir/cfg/
for d in `ls | grep cache`; do
new_inc_dirs="$new_inc_dirs -I `cd $d; pwd`"
new_search_dirs="$new_search_dirs `cd $d; pwd`"
done
cd $old_pwd
if [ -e $d/kver ]; then
base_ver=`cat $d/kver`
else
echo WARNING: no file $d/kver to set base version
fi
fi
inc_dirs=$new_inc_dirs
search_dirs=$new_search_dirs
find_executables()
{
old_pwd=`pwd`
count=0
exec_total=0
possible=$(find . -name 'meta-series')
for d in $possible; do
executables="$executables $d"
count=$[$count+1]
exec_total=$[$exec_total+1]
done
}
if [ -n "$resume" ]; then
echo "[INFO] resuming existing tree generation"
echo " includes: $inc_dirs"
echo " search: $search_dirs"
fi
if [ -n "$init" ]; then
if [ ! -d $output/.git ]; then
echo " phase # $phase_count) cloning source repository"
if [ -z "$base_ver" ]; then
echo "ERROR. No base branch version found, exiting"
exit 1
fi
kgit-init -v $input $base_ver $output
if [ $? -ne 0 ]; then
echo "ERROR. Unable to clone source repository $input"
exit 1
fi
(
cd $output;
for f in `git ls-files -m`; do
git add $f
done
git commit -s -m "kgit: creating baseline state"
)
else
(
ii=$(readlink -f $input)
cd $output
git checkout master
git fetch $ii master:master-new
mb=$(git merge-base master master-new)
if [ -n "${mb}" ]; then
git reset --hard ${mb}
git pull $ii master
git cat-file -e ${base_ver} 2> /dev/null
if [ $? -ne 0 ]; then
# the commit isn't in the tree, try to fetch it
git fetch -n $ii tag ${base_ver}
fi
git cat-file -e ${base_ver} 2> /dev/null
if [ $? -ne 0 ]; then
echo "[ERROR]: could not fetch base revision ${base_ver}"
exit 1
fi
git reset --hard ${base_ver}
git branch -D master-new
fi
)
fi
let phase_count=$phase_count+1
fi
if [ -z "$base_ver" ]; then
for dir in $search_dirs; do
if [ -d $dir ]; then
if [ -e $dir/kver ]; then
base_ver=`cat $dir/kver`
fi
fi
done
fi
prep_feature_desc=`find_feature_descriptions $prep_features`
if [ -n "$link" ] || [ -n "$compile" ]; then
count=1
executables=""
old_dir=`pwd`
exec_total=0
failed=`mktemp`
for dir in $search_dirs; do
if [ -d $dir ]; then
echo ""
echo ""
echo " phase # $phase_count) linking $dir"
feat_list=`get_feat_list $dir`
total=$(echo "$feat_list" "$prep_feature_desc" | tr ' ' '\n' | wc -l)
bops=
jcount=0
for f in $prep_feature_desc $feat_list; do
if [ $? -eq 0 ]; then
outname=`basename $f .scc`
if [ ! -z "$BLACKLIST" ]; then
echo $BLACKLIST | grep -q "$outname"
if [ $? = 0 ]; then
echo Skipping $outname, since blacklisted
continue
fi
fi
if [ ! -z "$BLACKREGEX" ]; then
echo $outname | grep -q "$BLACKREGEX"
if [ $? = 0 ]; then
echo Skipping $outname, matches blacklisted regex \"$BLACKREGEX\"
continue
fi
fi
if [ ! -z "$WHITELIST" ]; then
echo $WHITELIST | grep -q "$outname"
if [ $? != 0 ]; then
echo Skipping $outname, since not explicitly whitelisted
continue
fi
fi
if [ ! -z "$WHITEREGEX" ]; then
echo $outname | grep -q "$WHITEREGEX"
if [ $? != 0 ]; then
echo Skipping $outname - does not match whitelisted regex \"$WHITEREGEX\"
continue
fi
fi
# this is where we put 'jcount' jobs into the background
echo " [$count/$total] scc -v -o $output/$exec_dir/$outname $inc_dirs --cmds branch,patch $f"
(
if [ ! -d $output/$exec_dir/$outname ];then
mkdir -p $output/$exec_dir/$outname
fi
# the magic
scc -o $output/$exec_dir/$outname $inc_dirs --cmds branch,patch $f
if [ $? -ne 0 ]; then
echo "ERROR: could not generate $outname-meta"
echo $outname-meta >> $failed
exit 1
fi
) &
op=$!
bops="$bops $op"
let jcount=$jcount+1
if [ "$jcount" -ge "$jobs" ]; then
wait_for_jobs \
"Waiting for $jcount link jobs to complete ..." \
$bops
bops=
jcount=0
fi
executables="$executables $exec_dir/$outname/meta-series"
let count=$count+1
let exec_total=$exec_total+1
fi
cd $old_dir
done
wait_for_jobs \
"Waiting for series linkage to complete ..." $bops
let phase_count=$phase_count+1
fi
done
fi
if [ -s "$failed" ]; then
echo ERROR: aborting due to meta series generation failure:
cat $failed
rm -f $failed
exit 1
fi
if [ -n "$apply" ]; then
if [ -n "$full_build" ]; then
echo " phase # $phase_count) running meta series"
old=`pwd`
cd $output
if [ -z "$executables" ]; then
find_executables
fi
# exec_total was calculuated when we generated all the meta_series
total=$exec_total
start_branch=`git branch --no-color | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'`
count=1
for e in $executables; do
# this will trigger a complete copy of all the config
# fragments into the repository. Normal meta series
# process will also copy kconf files to the repo, but
# only when a branch is being first populated. If a branch
# has already been created AND a meta series has a conditional
# configuration, it won't be copied since the branch will
# be skipped to speedup execution.
if [ -n "$verbose" ]; then
echo "Applying patches [$count/$total]"
fi
if [ -n "$verbose" ]; then
echo "running: kgit-meta $vflags $e"
fi
kgit-meta $vflags $e
if [ $? -ne 0 ]; then
echo "ERROR. Could not apply meta series $e"
exit 1
fi
git checkout $start_branch
let count=$count+1
done
let phase_count=$phase_count+1
cd $old
# make the publish clean with respect to the last
# meta series used
rm -f $top_meta_dir/meta-series
fi
fi
if [ -n "$apply" ]; then
if [ -z "$noclean" ]; then
# we are allowed to tidy up ...
echo " phase # $phase_count) cleaning new object files"
(
cd $output/.git/rebase-apply 2> /dev/null
if [ $? -eq 0 ]; then
rm -rf *
fi
)
(
cd $output/$exec_dir 2> /dev/null
if [ $? -eq 0 ]; then
rm -rf *
echo "scc object files are placed in this directory" > README
fi
)
(
cd $output/$meta_dir 2> /dev/null
if [ $? -eq 0 ]; then
rm -rf *-meta
fi
)
let phase_count=$phase_count+1
fi
fi
if [ -s $meta_dir/refresh ]; then
echo **********************************************************
echo "[INFO]" There are patches needing refresh,
echo See file $meta_dir/refresh
echo **********************************************************
fi
|