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--
-- make_swift.lua
-- Generate a Swift project makefile.
--
local make = premake.make
local swift = { }
function premake.make_swift(prj)
local tool = premake.gettool(prj)
-- build a list of supported target platforms that also includes a generic build
local platforms = premake.filterplatforms(prj.solution, tool.platforms, "Native")
_p('# %s project makefile autogenerated by GENie', premake.action.current().shortname)
-- set up the environment
_p('ifndef config')
_p(1, 'config=%s', _MAKE.esc(premake.getconfigname(prj.solution.configurations[1], platforms[1], true)))
_p('endif')
_p('')
_p('ifndef verbose')
_p(1, 'SILENT = @')
_p('endif')
_p('')
-- identify the shell type
_p('SHELLTYPE := msdos')
_p('ifeq (,$(ComSpec)$(COMSPEC))')
_p(1, 'SHELLTYPE := posix')
_p('endif')
_p('ifeq (/bin,$(findstring /bin,$(SHELL)))')
_p(1, 'SHELLTYPE := posix')
_p('endif')
_p('ifeq (/bin,$(findstring /bin,$(MAKESHELL)))')
_p(1, 'SHELLTYPE := posix')
_p('endif')
_p('')
_p('ifeq (posix,$(SHELLTYPE))')
_p(1, 'MKDIR = $(SILENT) mkdir -p "$(1)"')
_p(1, 'COPY = $(SILENT) cp -fR "$(1)" "$(2)"')
_p(1, 'RM = $(SILENT) rm -f "$(1)"')
_p('else')
_p(1, 'MKDIR = $(SILENT) mkdir "$(subst /,\\\\,$(1))" 2> nul || exit 0')
_p(1, 'COPY = $(SILENT) copy /Y "$(subst /,\\\\,$(1))" "$(subst /,\\\\,$(2))"')
_p(1, 'RM = $(SILENT) del /F "$(subst /,\\\\,$(1))" 2> nul || exit 0')
_p('endif')
_p('')
_p('SWIFTC = %s', tool.swift)
_p('SWIFTLINK = %s', tool.swiftc)
_p('DSYMUTIL = %s', tool.dsymutil)
_p('AR = %s', tool.ar)
_p('')
-- write configuration blocks
for _, platform in ipairs(platforms) do
for cfg in premake.eachconfig(prj, platform) do
swift.generate_config(prj, cfg, tool)
end
end
_p('.PHONY: ')
_p('')
_p('all: $(WORK_DIRS) $(TARGET)')
_p('')
_p('$(WORK_DIRS):')
_p(1, '$(SILENT) $(call MKDIR,$@)')
_p('')
_p('SOURCES := \\')
for _, file in ipairs(prj.files) do
if path.isswiftfile(file) then
_p(1, '%s \\', _MAKE.esc(file))
end
end
_p('')
local objfiles = {}
_p('OBJECTS_WITNESS := $(OBJDIR)/build.stamp')
_p('OBJECTS := \\')
for _, file in ipairs(prj.files) do
if path.isswiftfile(file) then
local objname = _MAKE.esc(swift.objectname(file))
table.insert(objfiles, objname)
_p(1, '%s \\', objname)
end
end
_p('')
swift.file_rules(prj, objfiles)
swift.linker(prj, tool)
swift.generate_clean(prj)
end
function swift.objectname(file)
return path.join("$(OBJDIR)", path.getname(file)..".o")
end
function swift.file_rules(prj, objfiles)
-- use a witness file per recommendation for handling multiple outputs
-- see https://www.gnu.org/software/automake/manual/html_node/Multiple-Outputs.html
_p('$(OBJECTS_WITNESS): $(SOURCES)')
_p(1, "@rm -f $(OBJDIR)/data.tmp")
_p(1, "@touch $(OBJDIR)/data.tmp")
_p(1, "$(SILENT) $(SWIFTC) -frontend -c $(SOURCES) -enable-objc-interop $(SDK) -I $(OUT_DIR) $(SWIFTC_FLAGS) -module-cache-path $(MODULECACHE_DIR) -D SWIFT_PACKAGE $(MODULE_MAPS) -emit-module-doc-path $(OUT_DIR)/$(MODULE_NAME).swiftdoc -module-name $(MODULE_NAME) -emit-module-path $(OUT_DIR)/$(MODULE_NAME).swiftmodule -num-threads 8 %s", table.arglist("-o", objfiles))
_p(1, "@mv -f $(OBJDIR)/data.tmp $(OBJECTS_WITNESS)")
_p('')
-- posix only for now
_p('$(OBJECTS): $(OBJECTS_WITNESS)')
_p(1, '@if test -f $@; then :; else \\')
_p(2, 'rm -f $(OBJECTS_WITNESS); \\')
_p(2, '$(MAKE) $(AM_MAKEFLAGS) $(OBJECTS_WITNESS); \\')
_p(1, 'fi')
_p('')
end
function swift.linker(prj, tool)
local lddeps = make.list(premake.getlinks(prj, "siblings", "fullpath"))
if prj.kind == "StaticLib" then
_p("$(TARGET): $(OBJECTS) %s ", lddeps)
_p(1, "$(SILENT) $(AR) cr $(AR_FLAGS) $@ $(OBJECTS) %s", (os.is("MacOSX") and " 2>&1 > /dev/null | sed -e '/.o) has no symbols$$/d'" or ""))
else
_p("$(TARGET): $(OBJECTS) $(LDDEPS)", lddeps)
_p(1, "$(SILENT) $(SWIFTLINK) $(SDK) -L $(OUT_DIR) -o $@ $(SWIFTLINK_FLAGS) $(LD_FLAGS) $(OBJECTS)")
_p("ifdef SYMBOLS")
_p(1, "$(SILENT) $(DSYMUTIL) $(TARGET) -o $(SYMBOLS)")
_p("endif")
end
_p('')
end
function swift.generate_clean(prj)
_p('clean:')
if (not prj.solution.messageskip) or (not table.contains(prj.solution.messageskip, "SkipCleaningMessage")) then
_p('\t@echo Cleaning %s', prj.name)
end
_p('ifeq (posix,$(SHELLTYPE))')
_p('\t$(SILENT) rm -f $(TARGET)')
_p('\t$(SILENT) rm -rf $(OBJDIR)')
_p('\t$(SILENT) rm -rf $(SYMBOLS)')
_p('\t$(SILENT) rm -rf $(MODULECACHE_DIR)')
_p('else')
_p('\t$(SILENT) if exist $(subst /,\\\\,$(TARGET)) del $(subst /,\\\\,$(TARGET))')
_p('\t$(SILENT) if exist $(subst /,\\\\,$(OBJDIR)) rmdir /s /q $(subst /,\\\\,$(OBJDIR))')
_p('\t$(SILENT) if exist $(subst /,\\\\,$(SYMBOLS)) rmdir /s /q $(subst /,\\\\,$(SYMBOLS))')
_p('\t$(SILENT) if exist $(subst /,\\\\,$(MODULECACHE_DIR)) rmdir /s /q $(subst /,\\\\,$(MODULECACHE_DIR))')
_p('endif')
_p('')
end
function swift.generate_config(prj, cfg, tool)
_p('ifeq ($(config),%s)', _MAKE.esc(cfg.shortname))
_p(1, "OUT_DIR = %s", cfg.buildtarget.directory)
_p(1, "MODULECACHE_DIR = $(OUT_DIR)/ModuleCache")
_p(1, "TARGET = $(OUT_DIR)/%s", _MAKE.esc(cfg.buildtarget.name))
local objdir = path.join(cfg.objectsdir, prj.name .. ".build")
_p(1, "OBJDIR = %s", objdir)
_p(1, "MODULE_NAME = %s", prj.name)
_p(1, "MODULE_MAPS = %s", make.list(tool.getmodulemaps(cfg)))
_p(1, "SWIFTC_FLAGS = %s", make.list(tool.getswiftcflags(cfg)))
_p(1, "SWIFTLINK_FLAGS = %s", make.list(tool.getswiftlinkflags(cfg)))
_p(1, "AR_FLAGS = %s", make.list(tool.getarchiveflags(cfg, cfg, false)))
_p(1, "LD_FLAGS = %s", make.list(tool.getldflags(cfg)))
_p(1, "LDDEPS = %s", make.list(premake.getlinks(cfg, "siblings", "fullpath")))
if cfg.flags.Symbols then
_p(1, "SYMBOLS = $(TARGET).dSYM")
end
local sdk = tool.get_sdk_path(cfg)
if sdk then
_p(1, "TOOLCHAIN_PATH = %s", tool.get_toolchain_path(cfg))
_p(1, "SDK_PATH = %s", sdk)
_p(1, "PLATFORM_PATH = %s", tool.get_sdk_platform_path(cfg))
_p(1, "SDK = -sdk $(SDK_PATH)")
else
_p(1, "SDK_PATH =")
_p(1, "SDK =")
end
_p(1,'WORK_DIRS = $(OUT_DIR) $(OBJDIR)')
_p('endif')
_p('')
end
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