Re: [Libguestfs] [PATCH nbdkit] Add support for writing plugins in Rust.

---

+* Consider supporting a more idiomatic style for writing Rust plugins. +

+++ b/configure.ac @@ -545,6 +545,15 @@ AS_IF([test "x$OCAMLOPT" != "xno" && test "x$enable_ocaml" != "xno"],[ AM_CONDITIONAL([HAVE_OCAML],[test "x$OCAMLOPT" != "xno" && test "x$ocaml_link_shared" = "xyes"]) +dnl For developing plugins in Rust, optional. +AC_CHECK_PROG([CARGO],[cargo],[cargo],[no]) +AC_ARG_ENABLE([rust], + [AS_HELP_STRING([--disable-rust], [disable Rust plugin])], + [], + [enable_rust=yes]) +AM_CONDITIONAL([HAVE_RUST], + [test "x$CARGO" != "xno" && test "x$enable_ruby" != "xno"])

@@ -950,8 +951,8 @@ which defines C<$(NBDKIT_PLUGINDIR)> in automake-generated Makefiles. =head1 WRITING PLUGINS IN OTHER PROGRAMMING LANGUAGES You can also write nbdkit plugins in Lua, OCaml, Perl, Python, Ruby, -shell script or Tcl. Other programming languages may be offered in -future. +Rust, shell script or Tcl. Other programming languages may be offered +in future.

+++ b/plugins/rust/Cargo.toml.in @@ -0,0 +1,14 @@ +[package] +name = "nbdkit" +version = "@VERSION@" +authors = ["Richard W.M. Jones <rjones(a)redhat.com&gt;&quot;] +edition = "2018"

+++ b/plugins/rust/examples/ramdisk.rs

+ +// Every plugin must define a public, C-compatible plugin_init +// function which returns a pointer to an Plugin struct.