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mulle-sourcetree-to-c
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mulle-sourcetree-to-c
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#! /usr/bin/env mulle-bash
# shellcheck shell=bash
#
# Copyright (c) 2018 Nat! - Mulle kybernetiK
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# Neither the name of Mulle kybernetiK nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
[ "${TRACE}" = 'YES' -o "${MULLE_C_SOURCETREE_REFLECT_TRACE}" = 'YES' ] && set -x && : "$0" "$@"
MULLE_EXECUTABLE_VERSION="1.3.4"
usage()
{
cat <<EOF >&2
Usage:
${MULLE_USAGE_NAME} [flags]
Produce _<project>-include.h files and related headers. Also can produce
#import files for Objective-C.
This tool reads the contents of the sourcetree and uses the information to
produce header files.
Node info used:
address : to generate the default include <name>
marks : see below
include : specifies include name to use, if present
Marks used:
dependency : slightly different semantics for default include generation
require : fence with \`#if __has_include\`
import : use "import" instead of "include"
public : takes part in the generation of the public include file
platform : to produce \`#ifndef __APPLE__\` and such
Flags:
--import : Emit import files
--no-import : Don't emit import files
--stdout : Emit to stdout instead
--unames : List known unames and their known cpp equivalent
Environment:
MULLE_SOURCETREE_TO_C_INCLUDE_FILE | Use DISABLE to turn off
MULLE_SOURCETREE_TO_C_IMPORT_FILE | file generation. NONE to emit an
MULLE_SOURCETREE_TO_C_PRIVATEINCLUDE_FILE | empty file. - outputs to stdout.
MULLE_SOURCETREE_TO_C_PRIVATEIMPORT_FILE | Otherwise specify the filename.
EOF
exit 1
}
r_uname_to_cpp()
{
log_entry "r_uname_to_cpp" "$@"
local uname="$1" # the part after only-os or no
# https://www.geeksforgeeks.org/how-to-detect-operating-system-through-a-c-program/
case "${uname}" in
'android')
RVAL="__ANDROID__"
;;
'darwin')
RVAL="__APPLE__"
;;
'dragonfly')
RVAL="__DragonFly__"
;;
'freebsd')
RVAL="__FreeBSD__"
;;
'hpux')
RVAL="__hpux"
;;
'linux')
RVAL="__linux__"
;;
'netbsd')
RVAL="__NetBSD__"
;;
'openbsd')
RVAL="__OpenBSD__"
;;
'sun*')
RVAL="__sun"
;;
'windows'|'mingw'|'msys')
RVAL="_WIN32"
;;
*)
RVAL="__${uname}__"
;;
esac
}
list_unames()
{
log_entry "list_unames" "$@"
local i
r_uname_to_cpp "${MULLE_UNAME}"
printf "%s : %s\n" "${MULLE_UNAME}" "${RVAL}"
shell_disable_glob
for i in darwin freebsd netbsd openbsd dragonfly mingw msys \
windows linux sunos emscripten wasm32
do
if [ "$i" != "${MULLE_UNAME}" ]
then
r_uname_to_cpp "$i"
printf "%s : %s\n" "${i}" "${RVAL}"
fi
done
shell_enable_glob
}
r_sdk_to_cpp()
{
log_entry "r_sdk_to_cpp" "$@"
local sdk="$1" # the part after only-os or no
case "${sdk}" in
'glibc')
RVAL=
;;
'musl')
RVAL="__MULLE_MUSL__" # guess
;;
'cosmopolitan')
RVAL="__MULLE_COSMOPOLITAN__"
;;
*)
r_uppercase "${sdk}"
;;
esac
}
list_sdks()
{
log_entry "list_sdks" "$@"
local i
.for i in glibc musl cosmopolitan
.do
r_sdk_to_cpp "$i"
printf "%s : %s\n" "${i}" "${RVAL}"
.done
}
r_platformexclude_to_cpp_if()
{
log_entry "r_platformexclude_to_cpp_if" "$@"
local marks="$1"
local cppvar
local excludes
local onlys
local mark
.foreachitem mark in ${marks}
.do
case "${mark}" in
only-platform-*)
r_uname_to_cpp "${mark:14}"
r_concat "${onlys}" "defined( ${RVAL})" " || "
onlys="${RVAL}"
;;
only-craft-platform-*)
r_uname_to_cpp "${mark:20}"
r_concat "${onlys}" "defined( ${RVAL})" " || "
onlys="${RVAL}"
;;
no-craft-platform-*)
r_uname_to_cpp "${mark:18}"
r_concat "${excludes}" "! defined( ${RVAL})" " && "
excludes="${RVAL}"
;;
no-platform-*)
r_uname_to_cpp "${mark:12}"
r_concat "${excludes}" "! defined( ${RVAL})" " && "
excludes="${RVAL}"
;;
esac
.done
if [ ! -z "${onlys}" ]
then
RVAL="# if ${onlys}"
return
fi
if [ ! -z "${excludes}" ]
then
RVAL="# if ${excludes}"
return
fi
RVAL=""
}
r_sdk_exclude_to_cpp_if()
{
log_entry "r_sdk_exclude_to_cpp_if" "$@"
local marks="$1"
local cppvar
local excludes
local onlys
local mark
.foreachitem mark in ${marks}
.do
case "${mark}" in
only-sdk-*)
r_sdk_to_cpp "${mark:9}"
r_concat "${onlys}" "defined( ${RVAL})" " || "
onlys="${RVAL}"
;;
only-craft-sdk-*)
r_sdk_to_cpp "${mark:15}"
r_concat "${onlys}" "defined( ${RVAL})" " || "
onlys="${RVAL}"
;;
no-craft-sdk-*)
r_sdk_to_cpp "${mark:13}"
r_concat "${excludes}" "! defined( ${RVAL})" " && "
excludes="${RVAL}"
;;
no-sdk-*)
r_sdk_to_cpp "${mark:7}"
r_concat "${excludes}" "! defined( ${RVAL})" " && "
excludes="${RVAL}"
;;
esac
.done
if [ ! -z "${onlys}" ]
then
RVAL="# if ${onlys}"
return
fi
if [ ! -z "${excludes}" ]
then
RVAL="# if ${excludes}"
return
fi
RVAL=""
}
_emit_c_include()
{
log_entry "_emit_c_include" "$@"
local uuid="$1"
local address="$2"
local marks="$3"
local header="$4"
local indent
local ifstatement1
local ifstatement2
local include
local mark
local tinclude
#
# so objc can reuse this, make a provision for import with --objc flag
# but allow #include if the mark no-objc is set
#
include="include"
tinclude="include:"
if [ "${OPTION_IMPORT}" = 'YES' ]
then
include="import"
tinclude="import :"
case ",${marks}," in
*,no-import,*)
include="include"
tinclude="include :"
;;
esac
fi
cat <<EOF
// To remove the following dependency (headers and library) completely:
// \`mulle-sde dependency remove ${address}\`
// (Use ${uuid} instead of ${address}, if there are duplicate entries)
//
// You can tweak the following #$include with these commands:
// remove #${tinclude} \`mulle-sde dependency mark ${address} no-header\`
// rename : \`mulle-sde dependency|library set ${address} include whatever.h\`
// reorder : \`mulle-sde dependency move ${address} <up|down>\`
// toggle #${tinclude} \`mulle-sde dependency mark ${address} [no-]import\`
// toggle public : \`mulle-sde dependency mark ${address} [no-]public\`
// toggle optional : \`mulle-sde dependency mark ${address} [no-]require\`
// remove for platform : \`mulle-sde dependency mark ${address} no-platform-<uname>\`
// (use \`mulle-sourcetree-to-c --unames\` to list known values)
EOF
if [ ! -z "${marks}" ]
then
r_platformexclude_to_cpp_if "${marks}"
ifstatement1="${RVAL}"
r_sdk_exclude_to_cpp_if "${marks}"
ifstatement2="${RVAL}"
fi
if [ ! -z "${ifstatement1}" ]
then
printf "%s\n" "${ifstatement1}"
indent=" "
fi
if [ ! -z "${ifstatement2}" ]
then
printf "%s%s\n" "{indent}" "${ifstatement2}"
indent="${indent} "
fi
# TODO: remove support __has_include for C ? Not all C compilers have
# __has_include
# but if we check for __has_include and it's not there, then we are
# not loading a required header... hmm
#
case ",${marks}," in
*,no-require,*|*,no-require-os-${MULLE_UNAME},*)
local name
r_smart_file_upcase_identifier "${address}"
name="${RVAL}"
cat <<EOF
#${indent}ifdef __has_include
#${indent} if __has_include(<${header}>)
#${indent} ${indent}${include} <${header}> // ${address}
#${indent} define HAVE_LIB_${name%%_}
#${indent} endif
#${indent}endif
EOF
;;
*)
echo "#${indent}${include} <${header}> // ${address}"
;;
esac
if [ ! -z "${ifstatement2}" ]
then
indent="${indent%\ }"
printf "%s%s\n" "${indent}" "#endif"
fi
if [ ! -z "${ifstatement1}" ]
then
indent="${indent%\ }"
printf "%s%s\n" "${indent}" "#endif"
fi
echo
}
emit_c_include_library()
{
log_entry "emit_c_include_library" "$@"
local uuid="$1"
local address="$2"
local marks="$3"
local header="$4"
#
# the default for libraries is old style <name.h> not <name/name.h>
#
if [ -z "${header}" ]
then
local name
r_basename "${address%#*}"
name="${RVAL}"
header="${name}.h"
fi
_emit_c_include "${uuid}" "${address}" "${marks}" "${header}"
}
emit_c_include_dependency()
{
log_entry "emit_c_include_dependency" "$@"
local uuid="$1"
local address="$2"
local marks="$3"
local header="$4"
#
# the default for dependencies is <name/name.h>
#
if [ -z "${header}" ]
then
local name
r_basename "${address%#*}"
name="${RVAL}"
header="${name}/${name}.h"
fi
_emit_c_include "${uuid}" "${address}" "${marks}" "${header}"
}
emit_c_header()
{
log_entry "emit_c_header" "$@"
local marks="$1"
local filter_marks
r_comma_concat "header" "${marks}"
filter_marks="${RVAL}"
# since the order of the headers is important and needs to be in treeorder
# we use mulle-sourcetree directly
local headers
# if mulle-sourcetree fails with 127 its ok
local rval
headers="`exekutor mulle-sourcetree list \
--format "%_;%a;%m;%i={include,,-------}\\n" \
--marks "${filter_marks}" \
--no-bequeath \
--output-format raw \
--no-output-header`"
rval=$?
if [ $rval -ne 0 -a $rval -ne 127 ]
then
return $rval
fi
log_setting "headers=${headers}"
local dependency
local address
local include
local uuid
.foreachline header in ${headers}
.do
IFS=";" read uuid address marks include <<< "${header}"
if [ -z "${uuid}" ]
then
.continue
fi
log_verbose "Emit #include statements for ${C_MAGENTA}${C_BOLD}${address}"
case ",${marks}," in
*,no-dependency,*)
emit_c_include_library "${uuid}" \
"${address}" \
"${marks}" \
"${include}" \
"$@"
;;
*)
emit_c_include_dependency "${uuid}" \
"${address}" \
"${marks}" \
"${include}" \
"$@"
;;
esac
.done
}
output_file()
{
log_entry "output_file" "$@"
local filename="$1"
local text="$2"
local title="$3"
local varname="$4"
if [ "${filename}" = "-" ]
then
log_info "${title}"
rexekutor printf "%s\n" "${text}"
return $?
fi
log_verbose "mulle-sourcetree-to-c writes ${C_RESET_BOLD}${filename}"
r_mkdir_parent_if_missing "${filename}"
if [ -f "${filename}" ]
then
exekutor chmod a+w "${filename}" || _fatal "Can't unprotect \"${filename}\""
fi
if redirect_exekutor "${filename}" printf "%s\n" "${text}"
then
exekutor chmod a-w "${filename}"
return 0
fi
log_error "Failed to write \"${filename}\""
return 1
}
r_text_info_none()
{
local key="$1"
RVAL="/* Contents suppressed by ${key} NONE.
* Use
* mulle-sde environment set ${key} DISABLE
* to not generate this file.
*
* Use
* mulle-sde environment set MULLE_SOURCETREE_TO_C_RUN DISABLE
* to not generate any header files.
*/"
}
r_text_info_on()
{
local key="$1"
local extra="$2"
RVAL="/*
* This file will be regenerated by \`mulle-sourcetree-to-c${extra}\` via
* \`mulle-sde reflect\` and any edits will be lost.
* Suppress generation of this file with:
*
* mulle-sde environment set ${key} DISABLE
*
* To not let mulle-sourcetree-to-c generate any header files:
*
* mulle-sde environment set MULLE_SOURCETREE_TO_C_RUN DISABLE
*
*/"
}
c_include()
{
log_entry "c_include" "$@"
local projectname="$1"
local projectidentifier="$2"
local text_h
case "${MULLE_SOURCETREE_TO_C_INCLUDE_FILE}" in
ON|YES)
MULLE_SOURCETREE_TO_C_INCLUDE_FILE=""
;;
esac
case "${MULLE_SOURCETREE_TO_C_INCLUDE_FILE}" in
NO|DISABLE*)
return
;;
NONE)
r_text_info_none 'MULLE_SOURCETREE_TO_C_INCLUDE_FILE'
text_h="${RVAL}"
;;
esac
MULLE_SOURCETREE_TO_C_INCLUDE_FILE="${MULLE_SOURCETREE_TO_C_INCLUDE_FILE:-\
${PROJECT_SOURCE_DIR:-src}/reflect/_${projectname}-include.h}"
if [ -z "${text_h}" ]
then
local marks
case "${PROJECT_DIALECT}" in
'objc')
marks="public,no-import,include,header"
;;
*)
marks="public,include,header"
;;
esac
text_h="`emit_c_header "${marks}"`" || exit 1
if [ -z "${text_h}" ]
then
text_h="/* no headers */"
fi
r_text_info_on 'MULLE_SOURCETREE_TO_C_INCLUDE_FILE'
text_h="${RVAL}
#ifndef _${projectidentifier}_include_h__
#define _${projectidentifier}_include_h__
${text_h}
#endif"
fi
output_file "${MULLE_SOURCETREE_TO_C_INCLUDE_FILE}" \
"${text_h}" \
"_${projectname}-include.h" \
"MULLE_SOURCETREE_TO_C_INCLUDE_FILE"
}
objc_import()
{
log_entry "objc_import" "$@"
local projectname="$1"
local projectidentifier="$2"
local text_h
local marks
case "${MULLE_SOURCETREE_TO_C_IMPORT_FILE}" in
ON|YES)
MULLE_SOURCETREE_TO_C_IMPORT_FILE=""
;;
esac
marks="public,import,header"
case "${MULLE_SOURCETREE_TO_C_IMPORT_FILE}" in
NO|DISABLE*)
return
;;
NONE)
MULLE_SOURCETREE_TO_C_IMPORT_FILE=""
r_text_info_none 'MULLE_SOURCETREE_TO_C_IMPORT_FILE'
text_h="${RVAL}"
;;
*)
case "${MULLE_SOURCETREE_TO_C_INCLUDE_FILE}" in
DISABLE) # no star is intentional
marks="public,header"
;;
esac
;;
esac
MULLE_SOURCETREE_TO_C_IMPORT_FILE="${MULLE_SOURCETREE_TO_C_IMPORT_FILE:-\
${PROJECT_SOURCE_DIR:-src}/reflect/_${projectname}-import.h}"
if [ -z "${text_h}" ]
then
text_h="`emit_c_header "${marks}"`" || exit 1
if [ -z "${text_h}" ]
then
text_h="/* no headers */"
fi
#
# if we generate an include file, we want that
#
case "${MULLE_SOURCETREE_TO_C_INCLUDE_FILE}" in
DISABLE|NONE)
;;
*)
# for mulle-objc its important that the #include is afterwards
text_h="${text_h}
#ifdef __has_include
# if __has_include( \"_${projectname}-include.h\")
# include \"_${projectname}-include.h\"
# endif
#endif
"
;;
esac
r_text_info_on 'MULLE_SOURCETREE_TO_C_IMPORT_FILE' ' --project-dialect objc'
text_h="${RVAL}
${text_h}"
fi
output_file "${MULLE_SOURCETREE_TO_C_IMPORT_FILE}" \
"${text_h}" \
"_${projectname}-import.h" \
"MULLE_SOURCETREE_TO_C_IMPORT_FILE"
}
c_include_private()
{
log_entry "c_include_private" "$@"
local projectname="$1"
local projectidentifier="$2"
local text_h
case "${MULLE_SOURCETREE_TO_C_PRIVATEINCLUDE_FILE}" in
ON|YES)
MULLE_SOURCETREE_TO_C_PRIVATEINCLUDE_FILE=""
;;
esac
case "${MULLE_SOURCETREE_TO_C_PRIVATEINCLUDE_FILE}" in
NO|DISABLE*)
return
;;
NONE)
MULLE_SOURCETREE_TO_C_PRIVATEINCLUDE_FILE=
r_text_info_none 'MULLE_SOURCETREE_TO_C_PRIVATEINCLUDE_FILE'
text_h="${RVAL}"
;;
esac
MULLE_SOURCETREE_TO_C_PRIVATEINCLUDE_FILE="${MULLE_SOURCETREE_TO_C_PRIVATEINCLUDE_FILE:-\
${PROJECT_SOURCE_DIR:-src}/reflect/_${projectname}-include-private.h}"
if [ -z "${text_h}" ]
then
local marks
case "${PROJECT_DIALECT}" in
'objc')
marks="no-public,no-import,include,header"
;;
*)
marks="no-public,include,header"
;;
esac
text_h="`emit_c_header "${marks}"`" || exit 1
if [ -z "${text_h}" ]
then
text_h="/* no headers */"
fi
r_text_info_on 'MULLE_SOURCETREE_TO_C_PRIVATEINCLUDE_FILE'
text_h="${RVAL}
#ifndef _${projectidentifier}_include_private_h__
#define _${projectidentifier}_include_private_h__
${text_h}
#endif"
fi
output_file "${MULLE_SOURCETREE_TO_C_PRIVATEINCLUDE_FILE}" \
"${text_h}" \
"_${projectname}-include-private.h" \
"MULLE_SOURCETREE_TO_C_PRIVATEINCLUDE_FILE"
}
objc_import_private()
{
log_entry "objc_import_private" "$@"
local projectname="$1"
local projectidentifier="$2"
local text_h
local marks
case "${MULLE_SOURCETREE_TO_C_PRIVATEIMPORT_FILE}" in
ON|YES)
MULLE_SOURCETREE_TO_C_PRIVATEIMPORT_FILE=""
;;
esac
marks="no-public,import,header"
case "${MULLE_SOURCETREE_TO_C_PRIVATEIMPORT_FILE}" in
NO|DISABLE*)
return
;;
NONE)
r_text_info_none 'MULLE_SOURCETREE_TO_C_PRIVATEIMPORT_FILE'
text_h="${RVAL}"
;;
*)
case "${MULLE_SOURCETREE_TO_C_PRIVATEINCLUDE_FILE}" in
DISABLE) # no star is intentional
marks="no-public,import,include,header"
;;
esac
;;
esac
MULLE_SOURCETREE_TO_C_PRIVATEIMPORT_FILE="${MULLE_SOURCETREE_TO_C_PRIVATEIMPORT_FILE:-\
${PROJECT_SOURCE_DIR:-src}/reflect/_${projectname}-import-private.h}"
if [ -z "${text_h}" ]
then
text_h="`emit_c_header "${marks}"`" || exit 1
if [ -z "${text_h}" ]
then
text_h="/* no headers */"
fi
#
# if we generate an include file, we want that
#
case "${MULLE_SOURCETREE_TO_C_PRIVATEINCLUDE_FILE}" in
DISABLE|NONE)
;;
*)
text_h="${text_h}
#ifdef __has_include
# if __has_include( \"_${projectname}-include-private.h\")
# include \"_${projectname}-include-private.h\"
# endif
#endif"
;;
esac
r_text_info_on 'MULLE_SOURCETREE_TO_C_PRIVATEIMPORT_FILE' ' --project-dialect objc'
text_h="${RVAL}
${text_h}"
fi
output_file "${MULLE_SOURCETREE_TO_C_PRIVATEIMPORT_FILE}" \
"${text_h}" \
"_${projectname}-import-private.h" \
"MULLE_SOURCETREE_TO_C_PRIVATEIMPORT_FILE"
}
main()
{
log_entry "main" "$@"
# technical flags
local MULLE_TRACE
local MULLE_FLAG_DONT_DEFER='NO'
local MULLE_FLAG_EXEKUTOR_DRY_RUN='NO'
local MULLE_FLAG_FOLLOW_SYMLINKS='YES'
local MULLE_FLAG_LOG_CACHE='NO'
local MULLE_FLAG_LOG_DEBUG='NO'
local MULLE_FLAG_LOG_EXEKUTOR='NO'
local MULLE_FLAG_LOG_FLUFF='NO'
local MULLE_FLAG_LOG_MERGE='NO'
local MULLE_FLAG_LOG_SCRIPTS='NO'
local MULLE_FLAG_LOG_SETTINGS='NO'
local MULLE_FLAG_LOG_VERBOSE='NO'
local MULLE_TRACE_PATHS_FLIP_X='NO'
local MULLE_TRACE_POSTPONE='NO'
local MULLE_TRACE_RESOLVER_FLIP_X='NO'
local MULLE_TRACE_SETTINGS_FLIP_X='NO'
local OPTION_IMPORT="DEFAULT"
while [ $# -ne 0 ]
do
if options_technical_flags "$1"
then
shift
continue
fi
case "$1" in
-h*|--help|help)
usage
;;
--import)
OPTION_IMPORT='YES'
;;
--no-import)
OPTION_IMPORT='NO'
;;
-p|--project-name)
[ "$#" -eq 1 ] && usage "Missing argument to \"$1\""
shift
PROJECT_NAME="$1"
;;
-t|--project-type)
[ "$#" -eq 1 ] && usage "Missing argument to \"$1\""
shift
PROJECT_TYPE="$1"
;;
--project-source-dir)
[ "$#" -eq 1 ] && usage "Missing argument to \"$1\""
shift
PROJECT_SOURCE_DIR="$1"
;;
--project-dialect)
[ "$#" -eq 1 ] && usage "Missing argument to \"$1\""
shift
PROJECT_DIALECT="$1"
;;
--stdout)
MULLE_SOURCETREE_TO_C_INCLUDE_FILE="-"
MULLE_SOURCETREE_TO_C_PRIVATEINCLUDE_FILE="-"
MULLE_SOURCETREE_TO_C_IMPORT_FILE="-"
MULLE_SOURCETREE_TO_C_PRIVATEIMPORT_FILE="-"
;;
--unames)
list_unames
return 0
;;
--version)