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-rw-r--r--libbuild2/version/rule.hxx52
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diff --git a/libbuild2/version/rule.hxx b/libbuild2/version/rule.hxx
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+// file : libbuild2/version/rule.hxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
+// license : MIT; see accompanying LICENSE file
+
+#ifndef LIBBUILD2_VERSION_RULE_HXX
+#define LIBBUILD2_VERSION_RULE_HXX
+
+#include <libbuild2/types.hxx>
+#include <libbuild2/utility.hxx>
+
+#include <libbuild2/install/rule.hxx>
+
+#include <libbuild2/in/rule.hxx>
+
+namespace build2
+{
+ namespace version
+ {
+ // Preprocess an .in file that depends on manifest.
+ //
+ class in_rule: public in::rule
+ {
+ public:
+ in_rule (): rule ("version.in 2", "version.in") {}
+
+ virtual bool
+ match (action, target&, const string&) const override;
+
+ virtual string
+ lookup (const location&,
+ action,
+ const target&,
+ const string&) const override;
+ };
+
+ // Pre-process manifest before installation to patch in the version.
+ //
+ class manifest_install_rule: public install::file_rule
+ {
+ public:
+ manifest_install_rule () {}
+
+ virtual bool
+ match (action, target&, const string&) const override;
+
+ virtual auto_rmfile
+ install_pre (const file&, const install_dir&) const override;
+ };
+ }
+}
+
+#endif // LIBBUILD2_VERSION_RULE_HXX