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[DO NOT MERGE] #655 host readings of flag spellings #656

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[DO NOT MERGE] #655 host readings of flag spellings #656

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12011a0
[DO NOT MERGE] #655: host readings of flag spellings
speak-agent Sep 16, 2026
1080fe9
probe: print control characters, add the workflow
speak-agent Sep 16, 2026
ceb76ed
probe: run the store binary, not the shim
speak-agent Sep 16, 2026
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63 changes: 63 additions & 0 deletions .github/probe/655-readings.sh
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Original file line number Diff line number Diff line change
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#!/usr/bin/env bash
# #655 measurement: how the released mcpp's build hands each flag spelling to
# the compiler on this host, and what the compile database lists for it.
# One project per spelling, because a spelling that splits into a stray word
# fails the compile and must not take the others with it.
set +e
M="${MCPP:?}"
# The shim refuses outside the repository's pinned subos; address the store copy.
for cand in "$HOME"/.xlings/data/xpkgs/xim-x-mcpp/*/bin/mcpp "$HOME"/.xlings/data/xpkgs/xim-x-mcpp/*/bin/mcpp.exe; do
[ -x "$cand" ] && M="$cand"
done
PY=$(command -v python3 || command -v python)
ROOT="$(mktemp -d)"
reading() { echo "READING $*"; echo "- \`$*\`" >> "${GITHUB_STEP_SUMMARY:-/dev/null}"; }
case_one() {
id="$1"; channel="$2"; element="$3"
d="$ROOT/$id"; mkdir -p "$d/src"
printf '[package]\nname = "p%s"\nversion = "0.1.0"\n\n[build]\n%s = [%s]\n' "$id" "$channel" "$element" > "$d/mcpp.toml"
cat > "$d/src/main.cpp" <<'CPP'
#include <cstdio>
#define STR2(...) #__VA_ARGS__
#define STR(...) STR2(__VA_ARGS__)
int main() {
#ifdef V
std::printf("V=[");
for (const char* c = STR(V); *c; ++c)
if (*c >= 0x20 && *c < 0x7f) std::putchar(*c); else std::printf("<%02x>", (unsigned char)*c);
std::printf("]\n");
#else
std::printf("V undefined\n");
#endif
return 0;
}
CPP
out=$(cd "$d" && "$M" run 2>&1 | tr -d '\r')
v=$(printf '%s\n' "$out" | grep -E '^V(=| undefined)' | tail -1)
if [ -z "$v" ]; then
err=$(printf '%s\n' "$out" | grep -iE 'error|FAILED' | head -2 | tr '\n' ' ')
v="build-failed: ${err:0:200}"
fi
cdb=$(find "$d" -name compile_commands.json | head -1)
args=""
if [ -n "$cdb" ]; then
args=$("$PY" -c 'import json,sys; a=json.load(open(sys.argv[1]))[0]["arguments"]; i=[k for k,x in enumerate(a) if "V=" in x]; print(json.dumps(a[i[0]:i[0]+2]) if i else "[]")' "$cdb")
fi
reading "$RUNNER_OS $id $channel $element => build: $v | cdb: $args"
}
"$M" --version
case_one esc_cxx cxxflags '"-DV=\\\"esc.h\\\""'
case_one mid cxxflags '"-DV=\"mid\""'
case_one sq cxxflags "\"-DV='sq'\""
case_one sqsp cxxflags "\"-DV='a b'\""
case_one dqsp cxxflags '"-DV=\"a b\""'
case_one bsletter cxxflags '"-DV=a\\b"'
case_one bsbs cxxflags '"-DV=a\\\\b"'
case_one bsspace cxxflags '"-DV=a\\ b"'
case_one dollar cxxflags '"-DV=a$b"'
case_one plainsp cxxflags '"-DV=a b"'
case_one def_q defines '"V=\"def\""'
case_one def_sp defines '"V=a b"'
case_one def_bs defines '"V=a\\\\b"'
case_one def_sq defines "\"V='c'\""
exit 0
163 changes: 0 additions & 163 deletions .github/workflows/aur-publish.yml
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154 changes: 0 additions & 154 deletions .github/workflows/bootstrap-macos.yml
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