// file : libbuild2/bash/rule.hxx -*- C++ -*- // license : MIT; see accompanying LICENSE file #ifndef LIBBUILD2_BASH_RULE_HXX #define LIBBUILD2_BASH_RULE_HXX #include <libbuild2/types.hxx> #include <libbuild2/utility.hxx> #include <libbuild2/install/rule.hxx> #include <libbuild2/in/rule.hxx> #include <libbuild2/bash/export.hxx> namespace build2 { namespace bash { // Preprocess a bash script (exe{}) or module (bash{}) .in file that // imports one or more bash modules. // // Note that the default substitution symbol is '@' and the mode is lax // (think bash arrays). The idea is that '@' is normally used in ways that // are highly unlikely to be misinterpreted as substitutions. The user, // however, is still able to override both of these choices with the // corresponding in.* variables (e.g., to use '`' and strict mode). // class LIBBUILD2_BASH_SYMEXPORT in_rule: public in::rule { public: in_rule (): rule ("bash.in 1", "bash.in", '@', false /* strict */) {} virtual bool match (action, target&, const string&) const override; virtual recipe apply (action, target&) const override; virtual target_state perform_update (action, const target&) const override; virtual prerequisite_target search (action, const target&, const prerequisite_member&, include_type) const override; virtual optional<string> substitute (const location&, action a, const target&, const string&, bool) const override; string substitute_import (const location&, action a, const target&, const string&) const; }; // Installation rule for bash scripts (exe{}) and modules (bash{}). Here // we do: // // 1. Signal to in_rule that this is update for install. // // 2. Custom filtering of prerequisites. // class LIBBUILD2_BASH_SYMEXPORT install_rule: public install::file_rule { public: install_rule (const in_rule& in): in_ (in) {} virtual bool match (action, target&, const string&) const override; virtual recipe apply (action, target&) const override; virtual const target* filter (action, const target&, const prerequisite&) const override; protected: const in_rule& in_; }; } } #endif // LIBBUILD2_BASH_RULE_HXX