Move cli module to libbuild2-cli library

This is a temporary measure (until we unboundle this module) needed for
in-process configure support in bpkg.

1 files changed, 75 insertions, 0 deletions

diff --git a/libbuild2/cli/target.cxx b/libbuild2/cli/target.cxx
new file mode 100644
index 0000000..22ae75c
--- /dev/null
+++ b/libbuild2/cli/target.cxx
@@ -0,0 +1,75 @@
+// file      : libbuild2/cli/target.cxx -*- C++ -*-
+// license   : MIT; see accompanying LICENSE file
+
+#include <libbuild2/cli/target.hxx>
+
+#include <libbuild2/context.hxx>
+
+namespace build2
+{
+  namespace cli
+  {
+    // cli
+    //
+    extern const char cli_ext_def[] = "cli";
+
+    const target_type cli::static_type
+    {
+      "cli",
+      &file::static_type,
+      &target_factory<cli>,
+      nullptr, /* fixed_extension */
+      &target_extension_var<cli_ext_def>,
+      &target_pattern_var<cli_ext_def>,
+      nullptr,
+      &file_search,
+      target_type::flag::none
+    };
+
+    // cli.cxx
+    //
+    group_view cli_cxx::
+    group_members (action) const
+    {
+      static_assert (sizeof (cli_cxx_members) == sizeof (const target*) * 3,
+                     "member layout incompatible with array");
+
+      return h != nullptr
+        ? group_view {reinterpret_cast<const target* const*> (&h),
+                      (i != nullptr ? 3U : 2U)}
+        : group_view {nullptr, 0};
+    }
+
+    static target*
+    cli_cxx_factory (context& ctx,
+                     const target_type&, dir_path d, dir_path o, string n)
+    {
+      tracer trace ("cli::cli_cxx_factory");
+
+      // Pre-enter (potential) members as targets. The main purpose of doing
+      // this is to avoid searching for existing files in src_base if the
+      // buildfile mentions some of them explicitly as prerequisites.
+      //
+      // Also required for the src-out remapping logic.
+      //
+      ctx.targets.insert<cxx::hxx> (d, o, n, trace);
+      ctx.targets.insert<cxx::cxx> (d, o, n, trace);
+      ctx.targets.insert<cxx::ixx> (d, o, n, trace);
+
+      return new cli_cxx (ctx, move (d), move (o), move (n));
+    }
+
+    const target_type cli_cxx::static_type
+    {
+      "cli.cxx",
+      &mtime_target::static_type,
+      &cli_cxx_factory,
+      nullptr,
+      nullptr,
+      nullptr,
+      nullptr,
+      &target_search,
+      target_type::flag::see_through // Group with "see through" iteration.
+    };
+  }
+}