Move os-release facility from bpkg, add support for Mac OS, *BSD, Windows

1 files changed, 58 insertions, 0 deletions

diff --git a/tests/host-os-release/driver.cxx b/tests/host-os-release/driver.cxx
new file mode 100644
index 0000000..249cbff
--- /dev/null
+++ b/tests/host-os-release/driver.cxx
@@ -0,0 +1,58 @@
+// file      : tests/host-os-release/driver.cxx -*- C++ -*-
+// license   : MIT; see accompanying LICENSE file
+
+#include <libbutl/host-os-release.hxx>
+
+#include <libbutl/path.hxx>
+
+namespace butl
+{
+  LIBBUTL_SYMEXPORT os_release
+  host_os_release_linux (path f = {});
+}
+
+#include <iostream>
+
+#undef NDEBUG
+#include <cassert>
+
+using namespace std;
+using namespace butl;
+
+int
+main (int argc, char* argv[])
+{
+  assert (argc >= 2); // <host-target-triplet>
+
+  target_triplet host (argv[1]);
+
+  os_release r;
+  if (host.class_ == "linux")
+  {
+    assert (argc == 3); // <host-target-triplet> <file-path>
+    r = host_os_release_linux (path (argv[2]));
+  }
+  else
+  {
+    assert (argc == 2);
+    if (optional<os_release> o = host_os_release (host))
+      r = move (*o);
+    else
+    {
+      cerr << "unrecognized host os " << host.string () << endl;
+      return 1;
+    }
+  }
+
+  cout << r.name_id << '\n';
+  for (auto b (r.like_ids.begin ()), i (b); i != r.like_ids.end (); ++i)
+    cout << (i != b ? "|" : "") << *i;
+  cout << '\n'
+       << r.version_id << '\n'
+       << r.variant_id << '\n'
+       << r.name << '\n'
+       << r.version_codename << '\n'
+       << r.variant << '\n';
+
+  return 0;
+}