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authorBoris Kolpackov <boris@codesynthesis.com>2022-02-09 10:13:15 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2022-02-09 10:19:46 +0200
commit36e62584b33b5c168b8b42564d7f45b2150eef17 (patch)
treea7faef844b83e9e94ab7c7422e8e2b989bd73db5 /libbuild2
parentc285dafe9e2b7e4bba3fddad3fa254e4bdbb02d3 (diff)
Add dyndep_rule::inject_group_member()
Diffstat (limited to 'libbuild2')
-rw-r--r--libbuild2/dyndep.cxx45
-rw-r--r--libbuild2/dyndep.hxx25
2 files changed, 69 insertions, 1 deletions
diff --git a/libbuild2/dyndep.cxx b/libbuild2/dyndep.cxx
index 73fc8eb..f1fc5ec 100644
--- a/libbuild2/dyndep.cxx
+++ b/libbuild2/dyndep.cxx
@@ -799,4 +799,49 @@ namespace build2
false /* insert */,
map_ext, fallback, pfx_map, so_map);
}
+
+ const file& dyndep_rule::
+ inject_group_member (action a, const scope& bs, mtime_target& g,
+ path p, const target_type& tt)
+ {
+ path n (p.leaf ());
+ string e (n.extension ());
+
+ // Assume nobody else can insert these members (seems reasonable seeing
+ // that their names are dynamically discovered).
+ //
+ auto l (search_new_locked (
+ bs.ctx,
+ tt,
+ p.directory (),
+ dir_path (), // Always in out.
+ move (n.make_base ()).string (),
+ &e,
+ &bs));
+
+ const file& t (l.first.as<file> ()); // Note: non-const only if have lock.
+
+ if (l.second)
+ {
+ l.first.group = &g;
+ l.second.unlock ();
+ t.path (move (p)); // Only do this once.
+ }
+ else
+ // Must have been already done (e.g., on previous operation in a
+ // batch).
+ //
+ assert (t.group == &g);
+
+ // This shouldn't fail since we are the only ones that should be matching
+ // this target.
+ //
+ target_lock tl (lock (a, t));
+ assert (tl);
+
+ match_inc_dependents (a, g);
+ match_recipe (tl, group_recipe);
+
+ return t;
+ }
}
diff --git a/libbuild2/dyndep.hxx b/libbuild2/dyndep.hxx
index b285704..257ef7b 100644
--- a/libbuild2/dyndep.hxx
+++ b/libbuild2/dyndep.hxx
@@ -14,7 +14,8 @@
#include <libbuild2/export.hxx>
// Additional functionality that is normally only useful for implementing
-// rules with dynamic dependencies.
+// rules with dynamic dependencies (usually prerequisites, but also target
+// group members).
//
namespace build2
{
@@ -214,6 +215,28 @@ namespace build2
const target_type& fallback,
const function<prefix_map_func>& = nullptr,
const srcout_map& = {});
+
+ // Find or insert a target file path as a target of the specified type,
+ // make it a member of the specified (non-ad hoc) mtime target group,
+ // set its path, and match it with group_recipe.
+ //
+ // The file path must be absolute and normalized. Note that this function
+ // assumes that this member can only be matched via this group.
+ //
+ // Note: we can split this function into {enter,match}_group_member()
+ // if necessary.
+ //
+ static const file&
+ inject_group_member (action, const scope& base, mtime_target&,
+ path, const target_type&);
+
+ template <typename T>
+ static const T&
+ inject_group_member (action a, const scope& bs, mtime_target& g, path p)
+ {
+ return inject_group_member (
+ a, bs, g, move (p), T::static_type).template as<T> ();
+ }
};
}