Initial import

smoke.sh

@@ -0,0 +1,39 @@
+#!/bin/sh
+set -eu
+tool=${1:-zig-out/bin/have}
+mkdir -p .zig-cache/have-smoke/bin
+cat > .zig-cache/have-smoke/bin/ok <<'SCRIPT'
+#!/bin/sh
+exit 0
+SCRIPT
+chmod +x .zig-cache/have-smoke/bin/ok
+printf 'nope' > .zig-cache/have-smoke/bin/not-exec
+
+PATH=.zig-cache/have-smoke/bin "$tool" > .zig-cache/have-list.out
+grep -q '^ok$' .zig-cache/have-list.out
+if grep -q '^not-exec$' .zig-cache/have-list.out; then
+  echo 'have: listed non-executable file' >&2
+  exit 1
+fi
+PATH=.zig-cache/have-smoke/bin "$tool" ok missing > .zig-cache/have-query.out && {
+  echo 'have: query succeeded despite missing command' >&2
+  exit 1
+}
+grep -q '^ok$' .zig-cache/have-query.out
+if grep -q '^missing$' .zig-cache/have-query.out; then
+  echo 'have: printed missing command' >&2
+  exit 1
+fi
+
+"$tool" --help > .zig-cache/have-help.out 2> .zig-cache/have-help.err
+grep -q '^usage: have \[NAME\.\.\.\]' .zig-cache/have-help.out
+if [ -s .zig-cache/have-help.err ]; then
+  echo 'have: --help wrote stderr' >&2
+  exit 1
+fi
+"$tool" -h > .zig-cache/have-help-short.out 2> .zig-cache/have-help-short.err
+grep -q '^usage: have \[NAME\.\.\.\]' .zig-cache/have-help-short.out
+if [ -s .zig-cache/have-help-short.err ]; then
+  echo 'have: -h wrote stderr' >&2
+  exit 1
+fi