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qmckl/tools/tangle.sh
2023-06-14 11:44:00 +02:00

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#!/bin/bash
#
# This script tangles all the org-mode files in the src directory of QMCkl.
# It needs to be run from in the src directory. It uses the config_tangle.el
# Emacs configuration file, which contains information required to compute the
# current file names using for example ~(eval c)~ to get the name of the
# produced C file. The org-mode file is not tangled if the last modification
# date of the org file is older than one of the tangled files.
# The =missing= script is used to check if emacs is present on the system.
if [[ -z ${srcdir} ]] ; then
echo "Error: srcdir environment variable is not defined"
exit 1
fi
if [[ -z ${top_builddir} ]] ; then
echo "Error: top_builddir environment variable is not defined"
exit 1
fi
EMACS="${VARIABLE:=emacs}"
EXTENSIONS="_f.F90 _fh_func.F90 _fh_type.F90 .c _func.h _type.h _private_type.h _private_func.h"
function tangle()
{
local backup_dir=$(mktemp -d)
local org_file=$1
local c_file=${org_file%.org}.c
local f_file=${org_file%.org}.F90
if [[ ${org_file} -ot ${c_file} ]] ; then
return
elif [[ ${org_file} -ot ${f_file} ]] ; then
return
fi
local prefix=${top_builddir}/src/$(basename ${org_file})
prefix=${prefix%.org}
for ext in $EXTENSIONS ; do
if [[ -f ${prefix}${ext} ]] ; then
mv ${prefix}${ext} ${backup_dir}
fi
done
${srcdir}/tools/missing \
$EMACS --no-init-file --no-site-lisp --quick --batch ${org_file} \
--load=${srcdir}/tools/config_tangle.el \
-f org-babel-tangle
for ext in $EXTENSIONS ; do
local new_file=${prefix}${ext}
local old_file=${backup_dir}/$(basename ${new_file})
diff $new_file $old_file &> /dev/null
if [[ $? -eq 0 ]] ; then
echo "${old_file} unchanged"
mv $old_file $new_file
else
echo "${old_file} changed"
fi
done
rm -rf ${backup_dir}
}
for i in $@
do
tangled=${i%.org}.tangled
tangled=${top_builddir}/src/$(basename $tangled)
NOW=$(date +"%m%d%H%M.%S")
tangle ${i} &> $tangled
rc=$?
# Make log file older than the tangled files
touch -t ${NOW} $tangled
# Fail if tangling failed
if [[ $rc -ne 0 ]] ; then
cat $tangled
rm $tangled
exit $rc
fi
done