check-version

#!/bin/sh

set -e

desired="$1"
pattern='^v[0-9]\+\.[0-9]\+\.[0-9]\+$'
if echo "$desired" | grep -v "$pattern" >/dev/null 2>&1; then
    >&2 echo "Specified version \"$desired\" does not match the grep pattern $pattern"
    exit 1
fi

scratch=$(mktemp -d)
version_cpp="$(dirname "$0")/../src/datadog/version.cpp"
cp "$version_cpp" "$scratch"
cp "${version_cpp%.cpp}.h" "$scratch"
>"$scratch/print_version.cpp" cat <<'END_CPP'

#include "version.h"
#include <iostream>

int main() {
    std::cout << datadog::tracing::tracer_version;
}
END_CPP

/usr/bin/c++ -o "$scratch/print_version" "$scratch"/*.cpp
actual=$("$scratch/print_version")
rm -r "$scratch"

if [ "$actual" != "$desired" ]; then
    version_cpp="$(realpath --relative-to="$(pwd)" "$version_cpp")"
    >&2 echo "Desired release version \"$desired\" is different from that in $version_cpp: \"$actual\""
    exit 1
fi