Template
feat: self-host configure generation for stupidtools
Wire the full pipeline into the binary: parse + validate the KDL buildfile, discover extensions, bridge Lua, detect the C toolchain, and emit ./configure. Adds the project's own stupid.kdl build file and a temp-dir-isolated self-host integration test proving the generated configure + make rebuild the tool with -std=c23. tests/run.sh tests 6+8 re-pin the interim 'accepted, no read' CLI assertions to the wired 'missing buildfile -> exit 1' behavior.
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#!/bin/sh
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# tests/selfhost.sh - self-host integration test (plan todo 23).
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#
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# Proves stupidtools generates its OWN ./configure end to end: the tool
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# (already built by `make`) reads the repo's stupid.kdl, emits ./configure
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# into a TEMP dir, that configure produces a Makefile, and `make` builds a
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# working stupidtools whose compile line used -std=c23. The generated
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# configure/Makefile/binary live in the temp dir ONLY - the repo's own
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# autotools bootstrap (configure.ac + Makefile.am) is never touched, and no
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# in-tree residue is produced.
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#
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# POSIX sh only (dash/bash/zsh safe); no [[ ]], arrays, local, ==, <<<, &>.
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# Exit 0 = pass, non-zero = fail. Fails fast on a hard setup error.
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TOP_DIR=$(cd "$(dirname "$0")/.." && pwd) || {
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echo "FAIL: cannot resolve project root" >&2
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exit 1
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}
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BIN="$TOP_DIR/src/stupidtools"
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TESTS_RUN=0
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TESTS_FAILED=0
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pass() {
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TESTS_RUN=$((TESTS_RUN + 1))
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printf 'ok %d - %s\n' "$TESTS_RUN" "$1"
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}
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fail() {
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TESTS_RUN=$((TESTS_RUN + 1))
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TESTS_FAILED=$((TESTS_FAILED + 1))
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printf 'not ok %d - %s\n' "$TESTS_RUN" "$1" >&2
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}
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# --- 1. the built binary must exist --------------------------------------
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if [ -x "$BIN" ]; then
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pass "binary exists and is executable: $BIN"
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else
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fail "binary missing: $BIN (run 'make' first)"
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printf 'FAILED: %d/%d checks failed\n' "$TESTS_FAILED" "$TESTS_RUN" >&2
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exit 1
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fi
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# --- temp dir (isolated; cleaned on every exit path) ---------------------
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WORK=$(mktemp -d "${TMPDIR:-/tmp}/stupidtools-selfhost.XXXXXX") || {
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fail "cannot create temp dir"
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exit 1
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}
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cleanup() { rm -rf "$WORK"; }
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trap cleanup EXIT HUP INT TERM
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# --- 2. copy stupid.kdl + write a Makefile.in into the temp dir ----------
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cp "$TOP_DIR/stupid.kdl" "$WORK/stupid.kdl" || {
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fail "cannot copy stupid.kdl into temp dir"
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exit 1
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}
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# The tool's own source list (repo-relative, kept in sync with stupid.kdl's
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# `target` and src/Makefile.am). Prefixed with $TOP_DIR so the self-hosted
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# build compiles the REAL sources from the isolated temp dir. The `\$(...)`
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# escapes keep CC/CFLAGS/LIBS as MAKE variables (substituted by configure);
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# `$SRCS` expands here (shell) into the absolute path list.
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SRCS="$TOP_DIR/src/main.c $TOP_DIR/src/cli.c $TOP_DIR/src/error.c $TOP_DIR/src/span.c \
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$TOP_DIR/src/kdl/lexer.c $TOP_DIR/src/kdl/parser.c $TOP_DIR/src/kdl/value.c $TOP_DIR/src/kdl/schema.c \
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$TOP_DIR/src/detect/check_registry.c $TOP_DIR/src/detect/checks.c $TOP_DIR/src/detect/probe.c $TOP_DIR/src/detect/resolve.c \
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$TOP_DIR/src/gen/sh_emit.c $TOP_DIR/src/gen/configure.c $TOP_DIR/src/gen/config.c $TOP_DIR/src/gen/args.c \
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$TOP_DIR/src/ext/discovery.c $TOP_DIR/src/ext/lua.c $TOP_DIR/src/ext/abi.c $TOP_DIR/src/ext/api.c \
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$TOP_DIR/src/ext/lang_c.c $TOP_DIR/src/ext/lang_cpp.c \
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$TOP_DIR/thirdparty/lua/lapi.c $TOP_DIR/thirdparty/lua/lauxlib.c \
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$TOP_DIR/thirdparty/lua/lbaselib.c $TOP_DIR/thirdparty/lua/lcode.c \
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$TOP_DIR/thirdparty/lua/lctype.c $TOP_DIR/thirdparty/lua/ldebug.c \
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$TOP_DIR/thirdparty/lua/ldo.c $TOP_DIR/thirdparty/lua/ldump.c \
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$TOP_DIR/thirdparty/lua/lfunc.c $TOP_DIR/thirdparty/lua/lgc.c \
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$TOP_DIR/thirdparty/lua/llex.c $TOP_DIR/thirdparty/lua/lmem.c \
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$TOP_DIR/thirdparty/lua/lobject.c $TOP_DIR/thirdparty/lua/lopcodes.c \
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$TOP_DIR/thirdparty/lua/lparser.c $TOP_DIR/thirdparty/lua/lstate.c \
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$TOP_DIR/thirdparty/lua/lstring.c $TOP_DIR/thirdparty/lua/ltable.c \
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$TOP_DIR/thirdparty/lua/ltm.c $TOP_DIR/thirdparty/lua/lundump.c \
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$TOP_DIR/thirdparty/lua/lvm.c $TOP_DIR/thirdparty/lua/lzio.c \
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$TOP_DIR/thirdparty/lua/lstrlib.c $TOP_DIR/thirdparty/lua/ltablib.c"
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cat > "$WORK/Makefile.in" <<EOF
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CC = @CC@
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CFLAGS = @CFLAGS@ -std=c23 -Wall -Wextra -Wpedantic -I$TOP_DIR/src
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LIBS = @LIBS@
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prefix = @prefix@
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all: stupidtools
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stupidtools: $SRCS
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\$(CC) \$(CFLAGS) $SRCS -o stupidtools \$(LIBS)
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clean:
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rm -f stupidtools
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EOF
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pass "copied stupid.kdl + wrote Makefile.in"
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# --- 3. generate ./configure from stupid.kdl ------------------------------
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# Isolate from the dev environment's extensions (XDG_DATA_HOME to a
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# nonexistent dir, STUPIDTOOLS_EXT emptied) so only the builtin modules
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# load. The binary writes ./configure to the CWD (the temp dir).
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if (cd "$WORK" && XDG_DATA_HOME="$WORK/xdg" STUPIDTOOLS_EXT= \
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"$BIN" stupid.kdl >gen.log 2>&1); then
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if [ -s "$WORK/configure" ]; then
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pass "stupidtools generated a non-empty ./configure"
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else
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fail "stupidtools exited 0 but wrote no ./configure (see $WORK/gen.log)"
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fi
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else
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rc=$?
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fail "stupidtools failed on stupid.kdl (rc=$rc): $(cat "$WORK/gen.log" 2>/dev/null)"
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fi
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# --- 4. run ./configure -> Makefile --------------------------------------
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if [ -s "$WORK/configure" ]; then
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if sh -n "$WORK/configure" 2>"$WORK/configure.n.err"; then
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pass "generated ./configure passes sh -n (POSIX syntax)"
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else
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fail "generated ./configure fails sh -n: $(cat "$WORK/configure.n.err" 2>/dev/null)"
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fi
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if (cd "$WORK" && sh ./configure >config.log 2>&1); then
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if [ -s "$WORK/Makefile" ]; then
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pass "./configure ran and wrote a non-empty Makefile"
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else
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fail "./configure exited 0 but wrote no Makefile (see $WORK/config.log)"
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fi
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else
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rc=$?
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fail "./configure failed (rc=$rc): $(cat "$WORK/config.log" 2>/dev/null)"
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fi
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else
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fail "skipping configure run (no ./configure was generated)"
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fi
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# --- 5+6. build with make V=1 and assert -std=c23 ------------------------
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if [ -s "$WORK/Makefile" ]; then
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if command -v timeout >/dev/null 2>&1; then
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timeout 300 make -C "$WORK" V=1 >"$WORK/make.log" 2>&1
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make_rc=$?
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else
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make -C "$WORK" V=1 >"$WORK/make.log" 2>&1
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make_rc=$?
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fi
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if [ "$make_rc" -eq 0 ] && [ -x "$WORK/stupidtools" ]; then
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pass "make built a stupidtools binary in the temp dir"
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else
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fail "make failed (rc=$make_rc): $(tail -n 5 "$WORK/make.log" 2>/dev/null)"
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fi
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if grep -q -- '-std=c23' "$WORK/make.log"; then
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pass "self-hosted compile line used -std=c23"
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else
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fail "compile line did NOT contain -std=c23 (see $WORK/make.log)"
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fi
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else
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fail "skipping make (no Makefile was written)"
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fi
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# --- 7. the self-hosted binary must run ----------------------------------
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if [ -x "$WORK/stupidtools" ]; then
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if version_out=$("$WORK/stupidtools" --version 2>&1); then
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if [ "$version_out" = "stupidtools 1.0.0" ]; then
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pass "self-hosted binary --version reports: $version_out"
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else
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fail "self-hosted --version unexpected: '$version_out'"
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fi
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else
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rc=$?
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fail "self-hosted --version exited non-zero (rc=$rc): $version_out"
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fi
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else
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fail "skipping --version check (no self-hosted binary was built)"
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fi
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# --- summary -------------------------------------------------------------
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if [ "$TESTS_FAILED" -ne 0 ]; then
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printf 'FAILED: %d/%d checks failed\n' "$TESTS_FAILED" "$TESTS_RUN" >&2
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exit 1
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fi
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printf 'All %d self-host checks passed.\n' "$TESTS_RUN"
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