| 1 | #!/usr/bin/env bash
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| 2 | #
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| 3 | # Ninja rules for translating Python to C++.
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| 4 | #
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| 5 | # Usage:
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| 6 | # build/ninja-rules-py.sh <function name>
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| 7 | #
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| 8 | # Env variables:
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| 9 | # EXTRA_MYCPP_ARGS - passed to mycpp_main
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| 10 |
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| 11 | set -o nounset
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| 12 | set -o pipefail
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| 13 | set -o errexit
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| 14 |
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| 15 | REPO_ROOT=$(cd "$(dirname $0)/.."; pwd)
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| 16 |
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| 17 | source build/dev-shell.sh # python2 in $PATH
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| 18 | #source devtools/types.sh # typecheck-files
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| 19 | source $REPO_ROOT/test/tsv-lib.sh # time-tsv
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| 20 |
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| 21 | example-main-wrapper() {
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| 22 | ### Used by mycpp/examples
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| 23 |
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| 24 | local main_module=${1:-fib_iter}
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| 25 |
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| 26 | cat <<EOF
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| 27 | int main(int argc, char **argv) {
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| 28 | gHeap.Init();
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| 29 |
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| 30 | char* b = getenv("BENCHMARK");
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| 31 | if (b && strlen(b)) { // match Python's logic
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| 32 | fprintf(stderr, "Benchmarking...\\n");
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| 33 | $main_module::run_benchmarks();
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| 34 | } else {
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| 35 | $main_module::run_tests();
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| 36 | }
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| 37 |
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| 38 | gHeap.CleanProcessExit();
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| 39 | }
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| 40 | EOF
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| 41 | }
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| 42 |
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| 43 | main-wrapper() {
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| 44 | ### Used by oils-for-unix and yaks
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| 45 | local main_namespace=$1
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| 46 |
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| 47 | cat <<EOF
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| 48 | int main(int argc, char **argv) {
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| 49 | mylib::InitCppOnly(); // Initializes gHeap
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| 50 |
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| 51 | auto* args = Alloc<List<BigStr*>>();
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| 52 | for (int i = 0; i < argc; ++i) {
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| 53 | args->append(StrFromC(argv[i]));
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| 54 | }
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| 55 |
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| 56 | int status = $main_namespace::main(args);
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| 57 |
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| 58 | gHeap.ProcessExit();
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| 59 |
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| 60 | return status;
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| 61 | }
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| 62 | EOF
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| 63 | }
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| 64 |
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| 65 | gen-oils-for-unix() {
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| 66 | local main_name=$1
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| 67 | local translator=$2
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| 68 | local out_prefix=$3
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| 69 | local preamble=$4
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| 70 | local mycpp_opts=$5
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| 71 | shift 5 # rest are inputs
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| 72 |
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| 73 | # Put it in _build/tmp so it's not in the tarball
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| 74 | local tmp=_build/tmp/$translator
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| 75 | mkdir -p $tmp
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| 76 |
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| 77 | local raw_cc=$tmp/${main_name}_raw.cc
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| 78 | local cc_out=${out_prefix}.cc
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| 79 |
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| 80 | local raw_header=$tmp/${main_name}_raw.h
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| 81 | local header_out=${out_prefix}.h
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| 82 |
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| 83 | local mypypath="$REPO_ROOT:$REPO_ROOT/pyext"
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| 84 |
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| 85 | _bin/shwrap/mycpp_main $mypypath $raw_cc \
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| 86 | --header-out $raw_header \
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| 87 | $mycpp_opts \
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| 88 | ${EXTRA_MYCPP_ARGS:-} \
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| 89 | "$@"
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| 90 |
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| 91 | # oils_for_unix -> OILS_FOR_UNIX_MYCPP_H'
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| 92 | local guard=${main_name^^}_MYCPP_H
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| 93 |
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| 94 | { echo "// $main_name.h: translated from Python by mycpp"
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| 95 | echo
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| 96 | echo "#ifndef $guard"
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| 97 | echo "#define $guard"
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| 98 |
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| 99 | cat $raw_header
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| 100 |
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| 101 | echo "#endif // $guard"
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| 102 |
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| 103 | } > $header_out
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| 104 |
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| 105 | { cat <<EOF
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| 106 | // $main_name.cc: translated from Python by mycpp
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| 107 |
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| 108 | // #include "$header_out"
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| 109 |
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| 110 | #include "$preamble"
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| 111 | EOF
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| 112 |
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| 113 | cat $raw_cc
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| 114 |
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| 115 | main-wrapper $main_name
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| 116 | } > $cc_out
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| 117 | }
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| 118 |
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| 119 | print-wrap-cc() {
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| 120 | local translator=$1
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| 121 | local main_module=$2
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| 122 | local in=$3
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| 123 | local preamble_path=$4
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| 124 |
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| 125 | echo "// examples/$main_module translated by $translator"
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| 126 | echo
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| 127 |
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| 128 | if test -f "$preamble_path"; then
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| 129 | echo "#include \"$preamble_path\""
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| 130 | fi
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| 131 |
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| 132 | cat $in
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| 133 |
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| 134 | # main() function
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| 135 | case $translator in
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| 136 | mycpp)
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| 137 | example-main-wrapper $main_module
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| 138 | ;;
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| 139 | yaks)
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| 140 | main-wrapper $main_module
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| 141 | ;;
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| 142 | pea)
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| 143 | echo '#include <stdio.h>'
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| 144 | echo 'int main() { printf("stub\n"); return 1; }'
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| 145 | ;;
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| 146 | (*)
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| 147 | die "Invalid translator $translator"
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| 148 | ;;
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| 149 | esac
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| 150 | }
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| 151 |
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| 152 | wrap-cc() {
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| 153 | local out=$1
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| 154 | shift
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| 155 |
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| 156 | # $translator $main_module $in $preamble_path
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| 157 | print-wrap-cc "$@" > $out
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| 158 | }
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| 159 |
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| 160 | # TODO: Move mycpp/example tasks out of Ninja since timing is not a VALUE. It
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| 161 | # depends on the machine, can be done more than once, etc.
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| 162 |
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| 163 | task() {
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| 164 | local bin=$1 # Run this
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| 165 | local task_out=$2
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| 166 | local log_out=$3
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| 167 |
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| 168 | shift 3
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| 169 | # The rest of the args are passed as flags to time-tsv
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| 170 |
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| 171 | case $bin in
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| 172 | (mycpp/examples/*.py)
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| 173 | # we import mycpp.mylib
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| 174 | export PYTHONPATH="$REPO_ROOT/mycpp:$REPO_ROOT/vendor:$REPO_ROOT"
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| 175 | ;;
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| 176 | esac
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| 177 |
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| 178 | case $task_out in
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| 179 | (_test/tasks/benchmark/*)
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| 180 | export BENCHMARK=1
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| 181 | ;;
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| 182 | esac
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| 183 |
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| 184 | time-tsv -o $task_out --rusage "$@" --field $bin --field $task_out -- \
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| 185 | $bin >$log_out 2>&1
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| 186 | }
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| 187 |
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| 188 | example-task() {
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| 189 | ### Run a program in the examples/ dir, either in Python or C++
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| 190 |
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| 191 | local name=$1 # e.g. 'fib_iter'
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| 192 | local impl=$2 # 'Python' or 'C++'
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| 193 |
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| 194 | local bin=$3 # Run this
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| 195 | local task_out=$4
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| 196 | local log_out=$5
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| 197 |
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| 198 | task $bin $task_out $log_out --field $name --field $impl
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| 199 | }
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| 200 |
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| 201 | benchmark-table() {
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| 202 | local out=$1
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| 203 | shift
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| 204 |
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| 205 | # TODO: Use QTT header with types?
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| 206 | { time-tsv --print-header --rusage \
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| 207 | --field example_name --field impl \
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| 208 | --field bin --field task_out
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| 209 |
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| 210 | # Concatenate task files
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| 211 | cat "$@"
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| 212 | } > $out
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| 213 | }
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| 214 |
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| 215 | # Copied from devtools/types.sh
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| 216 |
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| 217 | MYPY_FLAGS='--strict --no-strict-optional'
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| 218 | typecheck-files() {
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| 219 | echo "MYPY $@"
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| 220 |
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| 221 | # TODO: Adjust path for mcypp/examples/modules.py
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| 222 | time MYPYPATH='.:pyext' python3 -m mypy --py2 --follow-imports=silent $MYPY_FLAGS "$@"
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| 223 | }
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| 224 |
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| 225 | typecheck() {
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| 226 | ### Typecheck without translation
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| 227 | local main_py=$1
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| 228 | local out=$2
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| 229 | local skip_imports=${3:-}
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| 230 |
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| 231 | if test -n "$skip_imports"; then
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| 232 | local more_flags='--follow-imports=silent'
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| 233 | else
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| 234 | local more_flags=''
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| 235 | fi
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| 236 |
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| 237 | # Similar to devtools/types.sh
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| 238 |
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| 239 | local status=0
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| 240 |
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| 241 | set +o errexit
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| 242 | typecheck-files $main_py > $out
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| 243 | status=$?
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| 244 | set -o errexit
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| 245 |
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| 246 | if test $status != 0; then
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| 247 | echo "FAIL $main_py"
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| 248 | cat $out
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| 249 | fi
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| 250 |
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| 251 | return $status
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| 252 | }
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| 253 |
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| 254 | logs-equal() {
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| 255 | local out=$1
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| 256 | shift
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| 257 |
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| 258 | mycpp/compare_pairs.py "$@" | tee $out
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| 259 | }
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| 260 |
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| 261 | #
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| 262 | # shwrap rules
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| 263 | #
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| 264 |
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| 265 | shwrap-py() {
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| 266 | ### Part of shell template for Python executables
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| 267 |
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| 268 | local main=$1
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| 269 | echo 'PYTHONPATH=$REPO_ROOT:$REPO_ROOT/vendor exec $REPO_ROOT/'$main' "$@"'
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| 270 | }
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| 271 |
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| 272 | shwrap-mycpp() {
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| 273 | ### Part of shell template for mycpp executable
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| 274 |
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| 275 | cat <<'EOF'
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| 276 | MYPYPATH=$1 # e.g. $REPO_ROOT/mycpp
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| 277 | out=$2
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| 278 | shift 2
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| 279 |
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| 280 | # Modifies $PATH; do not combine
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| 281 | . build/dev-shell.sh
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| 282 |
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| 283 | tmp=$out.tmp # avoid creating partial files
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| 284 |
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| 285 | MYPYPATH="$MYPYPATH" \
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| 286 | python3 mycpp/mycpp_main.py --cc-out $tmp "$@"
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| 287 | status=$?
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| 288 |
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| 289 | mv $tmp $out
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| 290 | exit $status
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| 291 | EOF
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| 292 | }
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| 293 |
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| 294 | shwrap-pea() {
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| 295 | ### Part of shell template for pea executable
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| 296 |
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| 297 | cat <<'EOF'
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| 298 | MYPYPATH=$1 # e.g. $REPO_ROOT/mycpp
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| 299 | out=$2
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| 300 | shift 2
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| 301 |
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| 302 | tmp=$out.tmp # avoid creating partial files
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| 303 |
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| 304 | PYTHONPATH="$REPO_ROOT:$TODO_MYPY_REPO" MYPYPATH="$MYPYPATH" \
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| 305 | python3 pea/pea_main.py cpp "$@" > $tmp
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| 306 | status=$?
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| 307 |
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| 308 | mv $tmp $out
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| 309 | exit $status
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| 310 | EOF
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| 311 | }
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| 312 |
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| 313 | print-shwrap() {
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| 314 | local template=$1
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| 315 | local unused=$2
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| 316 | shift 2
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| 317 |
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| 318 | cat << 'EOF'
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| 319 | #!/bin/sh
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| 320 | REPO_ROOT=$(cd "$(dirname $0)/../.."; pwd)
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| 321 | . $REPO_ROOT/build/py2.sh
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| 322 | EOF
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| 323 |
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| 324 | case $template in
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| 325 | (py)
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| 326 | local main=$1 # additional arg
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| 327 | shift
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| 328 | shwrap-py $main
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| 329 | ;;
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| 330 | (mycpp)
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| 331 | shwrap-mycpp
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| 332 | ;;
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| 333 | (pea)
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| 334 | shwrap-pea
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| 335 | ;;
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| 336 | (*)
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| 337 | die "Invalid template '$template'"
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| 338 | ;;
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| 339 | esac
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| 340 |
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| 341 | echo
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| 342 | echo '# DEPENDS ON:'
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| 343 | for dep in "$@"; do
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| 344 | echo "# $dep"
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| 345 | done
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| 346 | }
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| 347 |
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| 348 | write-shwrap() {
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| 349 | ### Create a shell wrapper for a Python tool
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| 350 |
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| 351 | # Key point: if the Python code changes, then the C++ code should be
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| 352 | # regenerated and re-compiled
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| 353 |
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| 354 | local unused=$1
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| 355 | local stub_out=$2
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| 356 |
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| 357 | print-shwrap "$@" > $stub_out
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| 358 | chmod +x $stub_out
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| 359 | }
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| 360 |
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| 361 | # sourced by devtools/bin.sh
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| 362 | if test $(basename $0) = 'ninja-rules-py.sh'; then
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| 363 | "$@"
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| 364 | fi
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