From 5d513688ae07d96910dd1eef83bdad4e9d780373 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Thu, 22 Apr 2021 21:57:13 +0300
Subject: Add support for linked configurations

---
 bpkg/pkg-configure.hxx | 28 +++++++++++++++++++++++-----
 1 file changed, 23 insertions(+), 5 deletions(-)

(limited to 'bpkg/pkg-configure.hxx')

diff --git a/bpkg/pkg-configure.hxx b/bpkg/pkg-configure.hxx
index b708df5..6d3a7c9 100644
--- a/bpkg/pkg-configure.hxx
+++ b/bpkg/pkg-configure.hxx
@@ -20,35 +20,53 @@ namespace bpkg
   int
   pkg_configure (const pkg_configure_options&, cli::scanner& args);
 
+  // The custom search function. If specified, it is called by pkg_configure()
+  // and pkg_configure_prerequisites() to obtain the database to search for
+  // the prerequisite in, instead of searching for it in the linked databases,
+  // recursively. If the function returns NULL, then fallback to the recursive
+  // search through the linked databases.
+  //
+  using find_database_function = database* (database&,
+                                            const package_name&,
+                                            bool buildtime);
+
   // Note: all of the following functions expect the package dependency
   // constraints to be complete.
 
   // Configure the package, update its state, and commit the transaction.
   //
   void
-  pkg_configure (const dir_path& configuration,
-                 const common_options&,
+  pkg_configure (const common_options&,
+                 database&,
                  transaction&,
                  const shared_ptr<selected_package>&,
                  const dependencies&,
                  const strings& config_vars,
-                 bool simulate);
+                 bool simulate,
+                 const function<find_database_function>& = {});
 
   // Configure a system package and commit the transaction.
   //
   shared_ptr<selected_package>
-  pkg_configure_system (const package_name&, const version&, transaction&);
+  pkg_configure_system (const package_name&,
+                        const version&,
+                        database&,
+                        transaction&);
 
   // Return package prerequisites given its dependencies. Fail if some of the
   // prerequisites are not configured or don't satisfy the package's
   // dependency constraints. Note that the package argument is used for
   // diagnostics only.
   //
+  // Note: loads selected packages.
+  //
   package_prerequisites
   pkg_configure_prerequisites (const common_options&,
+                               database&,
                                transaction&,
                                const dependencies&,
-                               const package_name&);
+                               const package_name&,
+                               const function<find_database_function>& = {});
 }
 
 #endif // BPKG_PKG_CONFIGURE_HXX
-- 
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