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------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- P R J . E N V -- -- -- -- S p e c -- -- -- -- Copyright (C) 2001-2011, Free Software Foundation, Inc. -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 3, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING3. If not, go to -- -- http://www.gnu.org/licenses for a complete copy of the license. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- This package implements services for Project-aware tools, mostly related -- to the environment (configuration pragma files, path files, mapping files). with GNAT.Dynamic_HTables; with GNAT.OS_Lib; package Prj.Env is procedure Initialize (In_Tree : Project_Tree_Ref); -- Initialize global components relative to environment variables procedure Print_Sources (In_Tree : Project_Tree_Ref); -- Output the list of sources after Project files have been scanned procedure Create_Mapping (In_Tree : Project_Tree_Ref); -- Create in memory mapping from the sources of all the projects (in body -- of package Fmap), so that Osint.Find_File will find the correct path -- corresponding to a source. procedure Create_Temp_File (Shared : Shared_Project_Tree_Data_Access; Path_FD : out File_Descriptor; Path_Name : out Path_Name_Type; File_Use : String); -- Create temporary file, fail with an error if it could not be created procedure Create_Mapping_File (Project : Project_Id; Language : Name_Id; In_Tree : Project_Tree_Ref; Name : out Path_Name_Type); -- Create a temporary mapping file for project Project. For each source or -- template of Language in the Project, put the mapping of its file name -- and path name in this file. See fmap for a description of the format -- of the mapping file. -- -- Implementation note: we pass a language name, not a language_index here, -- since the latter would have to match exactly the index of that language -- for the specified project, and that is not information available in -- buildgpr.adb. procedure Create_Config_Pragmas_File (For_Project : Project_Id; In_Tree : Project_Tree_Ref); -- If we need SFN pragmas, either for non standard naming schemes or for -- individual units. procedure Create_New_Path_File (Shared : Shared_Project_Tree_Data_Access; Path_FD : out File_Descriptor; Path_Name : out Path_Name_Type); -- Create a new temporary path file, placing file name in Path_Name function Ada_Include_Path (Project : Project_Id; In_Tree : Project_Tree_Ref; Recursive : Boolean := False) return String; -- Get the source search path of a Project file. If Recursive it True, get -- all the source directories of the imported and modified project files -- (recursively). If Recursive is False, just get the path for the source -- directories of Project. Note: the resulting String may be empty if there -- is no source directory in the project file. function Ada_Objects_Path (Project : Project_Id; In_Tree : Project_Tree_Ref; Including_Libraries : Boolean := True) return String_Access; -- Get the ADA_OBJECTS_PATH of a Project file. For the first call, compute -- it and cache it. When Including_Libraries is False, do not include the -- object directories of the library projects, and do not cache the result. procedure Set_Ada_Paths (Project : Project_Id; In_Tree : Project_Tree_Ref; Including_Libraries : Boolean; Include_Path : Boolean := True; Objects_Path : Boolean := True); -- Set the environment variables for additional project path files, after -- creating the path files if necessary. function File_Name_Of_Library_Unit_Body (Name : String; Project : Project_Id; In_Tree : Project_Tree_Ref; Main_Project_Only : Boolean := True; Full_Path : Boolean := False) return String; -- Returns the file name of a library unit, in canonical case. Name may or -- may not have an extension (corresponding to the naming scheme of the -- project). If there is no body with this name, but there is a spec, the -- name of the spec is returned. -- -- If Full_Path is False (the default), the simple file name is returned. -- If Full_Path is True, the absolute path name is returned. -- -- If neither a body nor a spec can be found, an empty string is returned. -- If Main_Project_Only is True, the unit must be an immediate source of -- Project. If it is False, it may be a source of one of its imported -- projects. function Project_Of (Name : String; Main_Project : Project_Id; In_Tree : Project_Tree_Ref) return Project_Id; -- Get the project of a source. The source file name may be truncated -- (".adb" or ".ads" may be missing). If the source is in a project being -- extended, return the ultimate extending project. If it is not a source -- of any project, return No_Project. procedure Get_Reference (Source_File_Name : String; In_Tree : Project_Tree_Ref; Project : out Project_Id; Path : out Path_Name_Type); -- Returns the project of a source and its path in displayable form generic with procedure Action (Path : String); procedure For_All_Source_Dirs (Project : Project_Id; In_Tree : Project_Tree_Ref); -- Iterate through all the source directories of a project, including those -- of imported or modified projects. Only returns those directories that -- potentially contain Ada sources (ie ignore projects that have no Ada -- sources generic with procedure Action (Path : String); procedure For_All_Object_Dirs (Project : Project_Id; Tree : Project_Tree_Ref); -- Iterate through all the object directories of a project, including those -- of imported or modified projects. ------------------ -- Project Path -- ------------------ type Project_Search_Path is private; -- An abstraction of the project path. This object provides subprograms -- to search for projects on the path (and caches the results to improve -- efficiency). No_Project_Search_Path : constant Project_Search_Path; procedure Initialize_Default_Project_Path (Self : in out Project_Search_Path; Target_Name : String); -- Initialize Self. It will then contain the default project path on the -- given target (including directories specified by the environment -- variables ADA_PROJECT_PATH and GPR_PROJECT_PATH). This does nothing if -- Self has already been initialized. procedure Copy (From : Project_Search_Path; To : out Project_Search_Path); -- Copy From into To procedure Initialize_Empty (Self : in out Project_Search_Path); -- Initialize self with an empty list of directories. If Self had already -- been set, it is reset. function Is_Initialized (Self : Project_Search_Path) return Boolean; -- Whether Self has been initialized procedure Free (Self : in out Project_Search_Path); -- Free the memory used by Self procedure Add_Directories (Self : in out Project_Search_Path; Path : String); -- Add one or more directories to the path. Directories added with this -- procedure are added in order after the current directory and before the -- path given by the environment variable GPR_PROJECT_PATH. A value of "-" -- will remove the default project directory from the project path. -- -- Calls to this subprogram must be performed before the first call to -- Find_Project below, or PATH will be added at the end of the search path. procedure Get_Path (Self : Project_Search_Path; Path : out String_Access); -- Return the current value of the project path, either the value set -- during elaboration of the package or, if procedure Set_Project_Path has -- been called, the value set by the last call to Set_Project_Path. The -- returned value must not be modified. -- Self must have been initialized first. procedure Set_Path (Self : in out Project_Search_Path; Path : String); -- Override the value of the project path. This also removes the implicit -- default search directories. generic with function Check_Filename (Name : String) return Boolean; function Find_Name_In_Path (Self : Project_Search_Path; Path : String) return String_Access; -- Find a name in the project search path of Self. Check_Filename is -- the predicate to valid the search. If Path is an absolute filename, -- simply calls the predicate with Path. Otherwise, calls the predicate -- for each component of the path. Stops as soon as the predicate -- returns True and returns the name, or returns null in case of failure. procedure Find_Project (Self : in out Project_Search_Path; Project_File_Name : String; Directory : String; Path : out Namet.Path_Name_Type); -- Search for a project with the given name either in Directory (which -- often will be the directory contain the project we are currently parsing -- and which we found a reference to another project), or in the project -- path Self. Self must have been initialized first. -- -- Project_File_Name can optionally contain directories, and the extension -- (.gpr) for the file name is optional. -- -- Returns No_Name if no such project was found function Get_Runtime_Path (Self : Project_Search_Path; Name : String) return String_Access; -- Compute the full path for the project-based runtime name. It first -- checks that name is not a simple name (must has a path separator in it), -- and returns null in case of failure. This check might be removed in the -- future. The name is simply searched on the project path. private package Projects_Paths is new GNAT.Dynamic_HTables.Simple_HTable (Header_Num => Header_Num, Element => Path_Name_Type, No_Element => No_Path, Key => Name_Id, Hash => Hash, Equal => "="); type Project_Search_Path is record Path : GNAT.OS_Lib.String_Access; -- As a special case, if the first character is '#:" or this variable -- is unset, this means that the PATH has not been fully initialized -- yet (although subprograms above will properly take care of that). Cache : Projects_Paths.Instance; end record; No_Project_Search_Path : constant Project_Search_Path := (Path => null, Cache => Projects_Paths.Nil); end Prj.Env;
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