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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0-only
# "scc" script.
# Copyright (c) 2010-2013 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.
version="0.8"
BASEDIR=$(dirname $BASH_SOURCE)
usage()
{
cat << EOF
scc [--help] [--configs] [--force] [-i] [-w] [--cmds <comma separated list>] [-o outdir:<meta,cfg,patch>] [-D<var>=<value>] [-I<path>] [-v] infiles
--help: This message
--force: force overwrite output file if it already exists
--cmds: list of supported commands. If not passed, all found commands are loaded,
valid commands are: patch, kconf, branch, define
--configs: Output the list of compiled configuration fragments (if available), -o <outdir> is
used to locate the configuration options
-D: define <var> to <value> which will be available to sub scripts
-I: include path <path> will be searched for files
-i: leave intermediate files on failure
-w: only warn on missing files
-v: verbose output
-o: output directory and artifacts. artifacts follow the colon and ar a comma
separated list of:
meta: full meta-series (patches, config, branches, etc)
cfg: configure fragment queue
patch: patch queue
infiles files to preprocess, and output into outfile or stdout
EOF
}
if [ -z "$1" ]; then
usage
exit 1
fi
outdir="."
while [ $# -gt 0 ]; do
case "$1" in
--help)
usage
exit
;;
-D*|--D*)
if [ "$1" == "-D" ] || [ "$1" == "--D" ]; then
x=$2; shift;
else
x=`echo $1 | sed s%^-*D%%`
fi
defines="$defines $x"
;;
-I*|--I*)
if [ "$1" == "-I" ] || [ "$1" == "--I" ]; then
x=$2; shift;
else
x=`echo $1 | sed s%^-*I%%`
fi
if [ -n "$x" ] && [ -d "$x" ]; then
include_paths="$include_paths -I$x"
fi
;;
--force|-f)
force=t
;;
--cmds)
cmds=$2
shift
;;
--configs)
configs=t
;;
-i)
intermediate=t
;;
-p|--patches)
patches=t
unified=
;;
-c|--config)
config=t
unified=
;;
-o)
# the first field is the output directory
outdir=$(echo $2 | cut -d: -f1)
# the next field is the comma separated list of actions, but if it is
# outdir again, we have no artifacts passed .. so you get them all
artifacts=$(echo $2 | cut -d: -f2)
if [ "${artifacts}" == "${outdir}" ]; then
artifacts="meta,patch,cfg"
fi
shift
;;
-v) verbose=t
;;
*) break
;;
esac
shift
done
err()
{
echo "$@" 1>&2
}
# args are the input files
infiles=$@
shift
# If --configs was passed, we dump the current queue and exit
if [ -n "${configs}" ]; then
if [ ! -f "${outdir}/config.queue" ]; then
echo "[ERROR]: no configuration queue found in outdir (${outdir})"
usage
exit 1
else
cat ${outdir}/config.queue | sed "s%^%${outdir}/%g" | sed 's%#.*$%%g' | tr '\n' ' '
exit 0
fi
fi
if [ -z "$infiles" ]; then
err "ERROR: a input file must be supplied"
exit 1
fi
if [ -n "$outfile" ] && [ -f "$outfile" ]; then
if [ -z "$force" ]; then
err "ERROR: output file \"$outfile\" exists, and --force was not passed"
exit 1
fi
fi
##
## create variables for use in scripts
##
if [ -n "$defines" ]; then
vars=$(echo $defines | sed 's/,/ /g')
for v in "$vars"; do
# eval makes it available for this script
eval $v
# echo makes it available for other scripts
dump_vars=$(echo "$dump_vars"; echo export $v)
done
fi
header()
{
echo "#"
echo "# scc v$version"
echo "# processed: `date`"
echo "#"
echo "# This is a scc output file, do not edit"
echo "#"
}
reloc_dir()
{
dir=$1
echo "# _reloc_dir $dir"
}
prefix()
{
prefix=$1
}
# override function takes the name of an already defined function and saves it
# as "<foo>_old" (or save_name if passed), and then declares a stub function of
# the original function name to inhibit any future calls to that function.
override_function()
{
orig=$1
save_name=$2
if [ -z "$save_name" ]; then
save_name=old_$1
fi
local ORIG_FUNC=$(declare -f $orig)
if [ -n "${ORIG_FUNC}" ]; then
local NEWNAME_FUNC="$save_name${ORIG_FUNC#$orig}"
eval "$NEWNAME_FUNC"
# create the override function
o="$orig () { true; }"
eval "${o}"
fi
}
process_file()
{
local in=$1
local ret=0
local done=""
local scc_output_file="$(mktemp)"
# source the file, but clear the path, since we only want commands
# that we declare as valid to run
(
# find the path of valid, external commands. The implementation is available
# in the command file "auto.cmd", which is always loaded
basename=$(which basename)
dirname=$(which dirname)
mkdir=$(which mkdir)
cp=$(which cp)
sed=$(which sed)
# load the commands. We load them all, and then check to see if we
# should override a specific command to our "do nothing function"
for c in ${all_cmds}; do
if [ -n "${verbose}" ]; then
echo "[INFO]: sourcing command: $c"
fi
source $c
done
for z in ${cmds_to_override}; do
if [ -n "${verbose}" ]; then
echo "[INFO]: disabling command: $z"
fi
override_function $(basename "$z" .cmd)
done
unset PATH
(
set -e
eval . $in $outfile_append > ${scc_output_file} 2>&1
)
)
if [ $? -ne 0 ]; then
echo "[ERROR]: processing of file $in failed"
# if the scc_output_file has content
if [ ! -s "${scc_output_file}" ]; then
cat ${scc_output_file}
# look for common errors so we can point to the right input file
# 1) /tmp/tmp.gfN6WsbDHN: line 403: cat: No such file or directory
# "grep -oh" will only output what matches, which gets us "line 404: .."
# cut gets us the second field, which is the line number
line=$(cat ${scc_output_file} | grep -oh "line.*:" | cut -f2 -d' ' | sed 's/://g')
if [ -n "$line" ]; then
let start_line=$line-20
let end_line=$line+10
if [ $start_line -lt 0 ]; then
start_line=0
fi
echo ""
echo "Context around the error is:"
echo ""
sed -n -e "$start_line,$end_line p" -e "$end_line q" $in | sed 's/^/ /'
echo ""
echo "See pre-processed file $in for more details"
fi
fi
rm -f ${scc_output_file}
exit 1
elif [ -n "${verbose}" ]; then
cat ${scc_output_file}
fi
rm -f ${scc_output_file}
return 0
}
## used in the feature scripts
## deprecated: use "define KERNEL_VERSION <value>"
set_kernel_version()
{
KERNEL_VERSION=$1
}
# used in feature scripts
# - encodes a generic git command
git()
{
echo "# _git $@"
}
# used in feature scripts
# arg1: the tag name
tag()
{
echo "# _git tag $1"
}
# preprocess the input files into a single large meta-script
if [ -n "$intermediate" ]; then
intermediate_flags="-i"
fi
pre_processed_file="$outfile.pre"
if [ -z "$outfile" ]; then
pre_processed_file="$(mktemp)"
fi
# load commands
all_cmds=""
cmds=$(echo ${cmds} | sed 's/,/ /g')
for cmd in ${BASEDIR}/scc-cmds/*.cmd; do
valid=
if [ -n "${cmds}" ]; then
# check the cmd against the command line listed ones
check_cmd=$(basename "$cmd" .cmd)
echo $cmds | grep -q -w $check_cmd
if [ $? -eq 0 ]; then
# the command is in the valid list
valid=t
fi
# we always load "auto.cmd"
if [ "$check_cmd" == "auto" ]; then
valid=t
fi
else
valid=t
fi
if [ -n "${valid}" ]; then
if [ -n "${verbose}" ]; then
echo "[INFO]: loaded $cmd" >&2
fi
cmds_to_source="${cmds_to_source} $cmd"
else
cmds_to_override="${cmds_to_override} $cmd"
fi
all_cmds="${all_cmds} $cmd"
done
# what artifacts need to be produced ?
#
# We can process the inputs into:
# patch.queue
# config.queue
# meta-series (all commands)
# meta is the entire meta series, so we set up a redirect
echo ${artifacts} | grep -w -q meta
if [ $? -eq 0 ]; then
outfile="${outdir}/meta-series"
outfile_append=">> $outfile"
outfile_start="> $outfile"
fi
# And we optionally set up pointers to a patch, config and merge queues
configqueue="/dev/null"
patchqueue="${outdir}/unused.patch.queue"
mergequeue="${outdir}/unused.merge.queue"
echo ${artifacts} | grep -w -q cfg
if [ $? -eq 0 ]; then
configqueue="${outdir}/config.queue"
rm -f "${configqueue}"
fi
echo ${artifacts} | grep -w -q patch
if [ $? -eq 0 ]; then
# remove the emp variant
rm -f ${patchqueue}
patchqueue="${outdir}/patch.queue"
rm -f "${outdir}"/patch*.queue
fi
echo ${artifacts} | grep -w -q merge
if [ $? -eq 0 ]; then
# remove the emp variant
rm -f ${mergequeue}
mergequeue="${outdir}/merge.queue"
rm -f "${outdir}"/merge.queue
fi
# preprocess the files.
# This does things like make paths absolute, checks for errors, etc.
spp --force $intermediate_flags -o $pre_processed_file $include_paths $infiles
if [ $? -ne 0 ]; then
err "ERROR: could not process input files: $infiles"
err " See ${pre_processed_file} for details"
exit 1
fi
eval header $outfile_start
# process the files and produce artifacts
process_file ${pre_processed_file}
ret=$?
if [ $ret -ne 0 ]; then
if [ -z "$intermediate" ]; then
if [ -n "$outfile" ]; then
rm -f $outfile
fi
rm -f ${pre_processed_file}
fi
else
rm -f ${pre_processed_file}
fi
echo ${patchqueue} | grep -q unused.queue
if [ $? -eq 0 ]; then
rm -f ${patchqueue}
fi
echo ${mergequeue} | grep -q unused.queue
if [ $? -eq 0 ]; then
rm -f ${mergequeue}
fi
exit $ret
|