add parse deps

tests/apis/custom_toolchain/toolchains/modules/private/tools/cl6x/parse_deps.lua

@@ -0,0 +1,77 @@
+--!A cross-platform build utility based on Lua
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+-- Copyright (C) 2015-present, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        parse_deps.lua
+--
+
+-- imports
+import("core.project.config")
+import("core.project.project")
+import("core.base.hashset")
+
+-- normailize path of a dependecy
+function _normailize_dep(dep, projectdir)
+    -- escape characters, e.g. \#Qt.Widget_pch.h -> #Qt.Widget_pch.h
+    -- @see https://github.com/xmake-io/xmake/issues/4134
+    -- https://github.com/xmake-io/xmake/issues/4273
+    if not is_host("windows") then
+        dep = dep:gsub("\\(.)", "%1")
+    end
+    if path.is_absolute(dep) then
+        dep = path.translate(dep)
+    else
+        dep = path.absolute(dep, projectdir)
+    end
+    if dep:startswith(projectdir) then
+        return path.relative(dep, projectdir)
+    else
+        -- we also need to check header files outside project
+        -- https://github.com/xmake-io/xmake/issues/1154
+        return dep
+    end
+end
+
+-- parse depsfiles from string
+--
+-- parse_deps(io.readfile(depfile, {continuation = "\\"}))
+--
+-- eg.
+--
+-- build/.objs/foo/linux/x86_64/release/src/foo.c.o: src/foo.c
+-- build/.objs/foo/linux/x86_64/release/src/foo.c.o: src/foo.h
+--
+-- build/.objs/tests/linux/x86_64/release/src/main.c.o: src/main.c
+-- build/.objs/tests/linux/x86_64/release/src/main.c.o: src/foo.h
+-- build/.objs/tests/linux/x86_64/release/src/main.c.o: src/bar.h
+-- build/.objs/tests/linux/x86_64/release/src/main.c.o: src/zoo.h
+--
+function main(depsdata, opt)
+    local results = hashset.new()
+    local projectdir = os.projectdir()
+    local line = depsdata:rtrim() -- maybe there will be an empty newline at the end. so we trim it first
+    local plain = {plain = true}
+    for _, includefile in ipairs(line:split('\n', plain)) do -- it will trim all internal spaces without `{strict = true}`
+        includefile = includefile:split(": ", plain)[2]
+        if includefile and #includefile > 0 then
+            includefile = _normailize_dep(includefile, projectdir)
+            if includefile then
+                results:insert(includefile)
+            end
+        end
+    end
+    return results:to_array()
+end