--
--  Copyright (C) 2018-2026, AdaCore
--
--  SPDX-License-Identifier: Apache-2.0
--

with "../config/spawn_config.gpr";

library project Spawn is

   type OS_API_Kind is ("unix", "osx", "Windows_NT");
   OS_API : OS_API_Kind := external ("SPAWN_OS", external ("OS", "unix"));

   type Library_Kind is ("static", "static-pic", "relocatable");
   Library_Type : Library_Kind :=
     external ("SPAWN_LIBRARY_TYPE", external ("LIBRARY_TYPE", "static"));

   type Spawn_Build_Kind is ("dev", "prod", "coverage", "AddressSanitizer");
   Build_Mode : Spawn_Build_Kind :=
     external ("SPAWN_BUILD_MODE", external ("BUILD_MODE", "prod"));

   Superproject := external ("SUPERPROJECT", "");

   for Languages use ("Ada", "c");

   for Library_Kind use Library_Type;
   for Library_Name use "spawn";
   for Run_Path_Option use ();

   for Object_Dir use "../.obj/" & Superproject & "/spawn/" & Library_Type;
   for Library_Dir use "../.libs/" & Superproject & "/spawn/" & Library_Type;
   for Source_Dirs use ("../source/spawn");

   Common_Excluded :=
     ("spawn-channels__glib_posix.ads", "spawn-channels__glib_posix.adb");

   case OS_API is
      when "unix" =>
         for Excluded_Source_Files use Common_Excluded &
           ("pipe2.c",
            "spawn-windows_api.ads",
            "spawn-windows_api.adb",
            "spawn-internal-windows.ads",
            "spawn-internal-windows.adb");

      when "Windows_NT" =>
         for Excluded_Source_Files use Common_Excluded &
           ("pipe2.c",
            "posix_const.c",
            "spawn-polls-posix_polls.ads",
            "spawn-polls-posix_polls.adb");

      when "osx" =>
         for Excluded_Source_Files use Common_Excluded &
           ("spawn-windows_api.ads",
            "spawn-windows_api.adb",
            "spawn-internal-windows.ads",
            "spawn-internal-windows.adb");
   end case;

   Spawn_Ada_Compiler_Switches := ();
   Coverage_Ada_Compiler_Switches := ();
   Linker_Options := ();

   case Build_Mode is
      when "prod" =>
         Spawn_Ada_Compiler_Switches := Spawn_Ada_Compiler_Switches & (
            --  Compile with optimizations
            "-O2",

            --  Generate debug information: this is useful to get meaningful
            --  tracebacks.
            "-g"
         );

      when "dev" =>
         Spawn_Ada_Compiler_Switches := Spawn_Ada_Compiler_Switches & (
            --  Compile with no optimization and with debug information to ease
            --  investigation in debuggers.
            "-O0", "-g",

            --  Enable all warnings and GNAT stylechecks (plus O: check for
            --  overriding indicators).
            "-gnatwa", "-gnatygO",

            --  Enable assertions and all validity checking options
            "-gnata", "-gnatVa",

            --  Enable stack overflow checks
            "-fstack-check"
         );

      when "coverage" =>
         Spawn_Ada_Compiler_Switches := Spawn_Ada_Compiler_Switches & ();
         Coverage_Ada_Compiler_Switches := (

            --  Enable coverage code instrumentation.
            "--coverage");

         Linker_Options := Linker_Options & ("--coverage");

       when "AddressSanitizer" =>
          Spawn_Ada_Compiler_Switches := Spawn_Ada_Compiler_Switches & (
            --  Standard development flags
            "-O0", "-g",
            --  Enable the AddressSanitizer
            "-fsanitize=address");

         Linker_Options := Linker_Options & ("-fsanitize=address");
   end case;

   Ada_Compiler_Switches :=
     Spawn_Config.Ada_Compiler_Switches
       & Spawn_Ada_Compiler_Switches
       & Coverage_Ada_Compiler_Switches;

   package Compiler is
      for Switches ("ada") use Spawn_Ada_Compiler_Switches;
   end Compiler;

   package Linker is
      for Linker_Options use Linker_Options;
   end Linker;

   package Naming is
      case OS_API is
         when "unix" | "osx" =>
            for Spec ("Spawn.Channels")
               use "spawn-channels__posix.ads";
            for Body ("Spawn.Channels")
               use "spawn-channels__posix.adb";
            for Spec ("Spawn.Internal")
               use "spawn-internal__posix.ads";
            for Body ("Spawn.Internal")
               use "spawn-internal__posix.adb";
            for Body ("Spawn.Environments.Initialize_Default")
               use "spawn-environments-initialize_default__posix.adb";
            for Spec ("Spawn.Environments.Internal")
               use "spawn-environments-internal__posix.ads";
            for Body ("Spawn.Environments.Internal")
               use "spawn-environments-internal__posix.adb";
            for Body ("Spawn.Environments.Search_In_Path")
               use "spawn-environments-search_in_path__posix.adb";
            for Body ("Spawn.Internal.Monitor")
               use "spawn-internal-monitor__posix.adb";
            for Body ("Spawn.Internal.Monitor.Initialize")
               use "spawn-internal-monitor-" & OS_API & "_initialize.adb";
         when "Windows_NT" =>
            for Spec ("Spawn.Internal")
               use "spawn-internal__windows.ads";
            for Body ("Spawn.Internal")
               use "spawn-internal__windows.adb";
            for Body ("Spawn.Environments.Initialize_Default")
               use "spawn-environments-initialize_default__windows.adb";
            for Spec ("Spawn.Environments.Internal")
               use "spawn-environments-internal__windows.ads";
            for Body ("Spawn.Environments.Internal")
               use "spawn-environments-internal__windows.adb";
            for Body ("Spawn.Environments.Search_In_Path")
               use "spawn-environments-search_in_path__windows.adb";
            for Body ("Spawn.Internal.Monitor")
               use "spawn-internal-monitor__windows.adb";
      end case;
   end Naming;

end Spawn;