| 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 mycpp/common-vars.sh # MYPY_REPO
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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 out_prefix=$2
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| 68 | local preamble=$3
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| 69 | shift 3 # rest are inputs
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| 70 |
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| 71 | # Put it in _build/tmp so it's not in the tarball
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| 72 | local tmp=_build/tmp
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| 73 | mkdir -p $tmp
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| 74 |
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| 75 | local raw_cc=$tmp/${main_name}_raw.cc
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| 76 | local cc_out=${out_prefix}.cc
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| 77 |
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| 78 | local raw_header=$tmp/${main_name}_raw.h
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| 79 | local header_out=${out_prefix}.h
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| 80 |
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| 81 | local mypypath="$REPO_ROOT:$REPO_ROOT/pyext"
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| 82 |
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| 83 | _bin/shwrap/mycpp_main $mypypath $raw_cc \
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| 84 | --header-out $raw_header \
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| 85 | ${EXTRA_MYCPP_ARGS:-} \
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| 86 | "$@"
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| 87 |
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| 88 | # oils_for_unix -> OILS_FOR_UNIX_MYCPP_H'
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| 89 | local guard=${main_name^^}_MYCPP_H
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| 90 |
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| 91 | { echo "// $main_name.mycpp.h: translated from Python by mycpp"
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| 92 | echo
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| 93 | echo "#ifndef $guard"
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| 94 | echo "#define $guard"
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| 95 |
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| 96 | cat $raw_header
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| 97 |
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| 98 | echo "#endif // $guard"
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| 99 |
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| 100 | } > $header_out
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| 101 |
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| 102 | { cat <<EOF
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| 103 | // $main_name.mycpp.cc: translated from Python by mycpp
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| 104 |
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| 105 | // #include "$header_out"
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| 106 |
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| 107 | #include "$preamble"
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| 108 | EOF
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| 109 |
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| 110 | cat $raw_cc
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| 111 |
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| 112 | main-wrapper $main_name
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| 113 | } > $cc_out
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| 114 | }
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| 115 |
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| 116 | print-wrap-cc() {
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| 117 | local translator=$1
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| 118 | local main_module=$2
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| 119 | local in=$3
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| 120 | local preamble_path=$4
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| 121 |
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| 122 | echo "// examples/$main_module translated by $translator"
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| 123 | echo
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| 124 |
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| 125 | if test -f "$preamble_path"; then
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| 126 | echo "#include \"$preamble_path\""
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| 127 | fi
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| 128 |
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| 129 | cat $in
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| 130 |
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| 131 | # main() function
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| 132 | case $translator in
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| 133 | mycpp)
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| 134 | example-main-wrapper $main_module
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| 135 | ;;
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| 136 | yaks)
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| 137 | main-wrapper $main_module
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| 138 | ;;
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| 139 | pea)
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| 140 | echo '#include <stdio.h>'
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| 141 | echo 'int main() { printf("stub\n"); return 1; }'
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| 142 | ;;
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| 143 | (*)
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| 144 | die "Invalid translator $translator"
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| 145 | ;;
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| 146 | esac
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| 147 | }
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| 148 |
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| 149 | wrap-cc() {
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| 150 | local out=$1
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| 151 | shift
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| 152 |
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| 153 | # $translator $main_module $in $preamble_path
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| 154 | print-wrap-cc "$@" > $out
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| 155 | }
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| 156 |
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| 157 | # TODO: Move mycpp/example tasks out of Ninja since timing is not a VALUE. It
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| 158 | # depends on the machine, can be done more than once, etc.
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| 159 |
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| 160 | task() {
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| 161 | local bin=$1 # Run this
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| 162 | local task_out=$2
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| 163 | local log_out=$3
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| 164 |
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| 165 | shift 3
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| 166 | # The rest of the args are passed as flags to time-tsv
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| 167 |
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| 168 | case $bin in
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| 169 | (mycpp/examples/*.py)
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| 170 | # we import mycpp.mylib
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| 171 | export PYTHONPATH="$REPO_ROOT/mycpp:$REPO_ROOT/vendor:$REPO_ROOT"
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| 172 | ;;
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| 173 | esac
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| 174 |
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| 175 | case $task_out in
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| 176 | (_test/tasks/benchmark/*)
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| 177 | export BENCHMARK=1
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| 178 | ;;
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| 179 | esac
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| 180 |
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| 181 | time-tsv -o $task_out --rusage "$@" --field $bin --field $task_out -- \
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| 182 | $bin >$log_out 2>&1
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| 183 | }
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| 184 |
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| 185 | example-task() {
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| 186 | ### Run a program in the examples/ dir, either in Python or C++
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| 187 |
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| 188 | local name=$1 # e.g. 'fib_iter'
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| 189 | local impl=$2 # 'Python' or 'C++'
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| 190 |
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| 191 | local bin=$3 # Run this
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| 192 | local task_out=$4
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| 193 | local log_out=$5
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| 194 |
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| 195 | task $bin $task_out $log_out --field $name --field $impl
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| 196 | }
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| 197 |
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| 198 | benchmark-table() {
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| 199 | local out=$1
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| 200 | shift
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| 201 |
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| 202 | # TODO: Use QTT header with types?
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| 203 | { time-tsv --print-header --rusage \
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| 204 | --field example_name --field impl \
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| 205 | --field bin --field task_out
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| 206 |
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| 207 | # Concatenate task files
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| 208 | cat "$@"
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| 209 | } > $out
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| 210 | }
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| 211 |
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| 212 | # TODO: No longer works. This is called by ninja mycpp-check
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| 213 | # I think it's giving strict warnings.
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| 214 | mypy() {
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| 215 | ( source $MYCPP_VENV/bin/activate
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| 216 | # Don't need this since the virtualenv we created with it?
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| 217 | # source build/dev-shell.sh
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| 218 | PYTHONPATH=$MYPY_REPO python3 -m mypy "$@";
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| 219 | )
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| 220 | }
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| 221 |
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| 222 | typecheck() {
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| 223 | ### Typecheck without translation
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| 224 | local main_py=$1
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| 225 | local out=$2
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| 226 | local skip_imports=${3:-}
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| 227 |
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| 228 | if test -n "$skip_imports"; then
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| 229 | local more_flags='--follow-imports=silent'
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| 230 | else
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| 231 | local more_flags=''
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| 232 | fi
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| 233 |
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| 234 | # $more_flags can be empty
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| 235 | MYPYPATH="$REPO_ROOT:$REPO_ROOT/mycpp" \
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| 236 | mypy --py2 --strict $more_flags $main_py > $out
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| 237 | }
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| 238 |
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| 239 | logs-equal() {
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| 240 | local out=$1
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| 241 | shift
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| 242 |
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| 243 | mycpp/compare_pairs.py "$@" | tee $out
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| 244 | }
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| 245 |
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| 246 | #
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| 247 | # shwrap rules
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| 248 | #
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| 249 |
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| 250 | shwrap-py() {
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| 251 | ### Part of shell template for Python executables
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| 252 |
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| 253 | local main=$1
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| 254 | echo 'PYTHONPATH=$REPO_ROOT:$REPO_ROOT/vendor exec $REPO_ROOT/'$main' "$@"'
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| 255 | }
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| 256 |
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| 257 | shwrap-mycpp() {
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| 258 | ### Part of shell template for mycpp executable
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| 259 |
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| 260 | cat <<'EOF'
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| 261 | MYPYPATH=$1 # e.g. $REPO_ROOT/mycpp
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| 262 | out=$2
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| 263 | shift 2
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| 264 |
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| 265 | # Modifies $PATH; do not combine
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| 266 | . build/dev-shell.sh
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| 267 |
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| 268 | tmp=$out.tmp # avoid creating partial files
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| 269 |
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| 270 | MYPYPATH="$MYPYPATH" \
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| 271 | python3 mycpp/mycpp_main.py --cc-out $tmp "$@"
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| 272 | status=$?
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| 273 |
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| 274 | mv $tmp $out
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| 275 | exit $status
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| 276 | EOF
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| 277 | }
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| 278 |
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| 279 | shwrap-pea() {
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| 280 | ### Part of shell template for pea executable
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| 281 |
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| 282 | cat <<'EOF'
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| 283 | MYPYPATH=$1 # e.g. $REPO_ROOT/mycpp
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| 284 | out=$2
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| 285 | shift 2
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| 286 |
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| 287 | tmp=$out.tmp # avoid creating partial files
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| 288 |
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| 289 | PYTHONPATH="$REPO_ROOT:$MYPY_REPO" MYPYPATH="$MYPYPATH" \
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| 290 | python3 pea/pea_main.py cpp "$@" > $tmp
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| 291 | status=$?
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| 292 |
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| 293 | mv $tmp $out
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| 294 | exit $status
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| 295 | EOF
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| 296 | }
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| 297 |
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| 298 | print-shwrap() {
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| 299 | local template=$1
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| 300 | local unused=$2
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| 301 | shift 2
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| 302 |
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| 303 | cat << 'EOF'
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| 304 | #!/bin/sh
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| 305 | REPO_ROOT=$(cd "$(dirname $0)/../.."; pwd)
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| 306 | . $REPO_ROOT/build/py2.sh
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| 307 | EOF
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| 308 |
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| 309 | case $template in
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| 310 | (py)
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| 311 | local main=$1 # additional arg
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| 312 | shift
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| 313 | shwrap-py $main
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| 314 | ;;
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| 315 | (mycpp)
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| 316 | shwrap-mycpp
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| 317 | ;;
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| 318 | (pea)
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| 319 | shwrap-pea
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| 320 | ;;
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| 321 | (*)
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| 322 | die "Invalid template '$template'"
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| 323 | ;;
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| 324 | esac
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| 325 |
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| 326 | echo
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| 327 | echo '# DEPENDS ON:'
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| 328 | for dep in "$@"; do
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| 329 | echo "# $dep"
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| 330 | done
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| 331 | }
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| 332 |
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| 333 | write-shwrap() {
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| 334 | ### Create a shell wrapper for a Python tool
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| 335 |
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| 336 | # Key point: if the Python code changes, then the C++ code should be
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| 337 | # regenerated and re-compiled
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| 338 |
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| 339 | local unused=$1
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| 340 | local stub_out=$2
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| 341 |
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| 342 | print-shwrap "$@" > $stub_out
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| 343 | chmod +x $stub_out
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| 344 | }
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| 345 |
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| 346 | # sourced by devtools/bin.sh
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| 347 | if test $(basename $0) = 'ninja-rules-py.sh'; then
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| 348 | "$@"
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| 349 | fi
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