impl has_flags and add detect.flags.xxx

1 files changed, 44 insertions, 9 deletions

diff --git a/xmake/modules/lib/detect/has_flags.lua b/xmake/modules/lib/detect/has_flags.lua
index 6aad9b7a8..43abc5a1e 100644
--- a/xmake/modules/lib/detect/has_flags.lua
+++ b/xmake/modules/lib/detect/has_flags.lua
@@ -25,6 +25,36 @@
 -- imports
 import("lib.detect.find_tool")
 
+-- get flag name
+--
+-- .e.g 
+--
+-- "-fsanitize=address":                    fsanitize_address
+-- "--coverage":                            coverage
+-- "-nodefaultlib:\"msvcrt.lib\"":          nodefaultlib
+-- "/TP":                                   tp
+-- "fomit-frame-pointer":                   fomit_frame_pointer
+-- "-Wno-error=deprecated-declarations":    wno_error_deprecated_declarations
+-- "-pagezero_size 10000"                   pagezero_size
+--
+function _get_flagname(flag)
+
+    -- get the first name by ' '
+    local name = flag:lower():split('%s+')[1]
+
+    -- split ':'
+    name = name:split(':')[1]
+
+    -- translate '-', '/' and '=' to '_'
+    name = name:gsub("[%-/=]", "_")
+
+    -- remove prefix '_*' .. xxxx
+    name = name:gsub("^_+", "")
+
+    -- ok?
+    return name
+end
+
 -- has this flag?
 function _has_flag(name, flag, opt)
 
@@ -35,12 +65,13 @@ function _has_flag(name, flag, opt)
         return false
     end
 
-    -- init program and version
-    opt.program = tool.program
-    opt.version = tool.version
+    -- init tool
+    opt.tool = tool
+
+    -- TODO tool.check, semver(tool.version)
 
     -- init cache and key
-    local key     = opt.program .. "_" .. (opt.version or "") .. "_" .. flag
+    local key     = tool.program .. "_" .. (tool.version or "") .. "_" .. flag
     local results = _g._RESULTS or {}
     
     -- get result from the cache first
@@ -49,18 +80,22 @@ function _has_flag(name, flag, opt)
         return result
     end
 
+    -- get flag name
+    local flagname = _get_flagname(flag)
+    print(flagname)
+
     -- "detect.tools.find_xxx" exists?
     local result = nil
-    if os.isfile(path.join(os.programdir(), "modules", "detect", "flags", tool.name .. ".lua")) then
-        local has_flag_for_tool = import("detect.flags." .. tool.name)
-        if has_flag_for_tool then
-            result = has_flag_for_tool(flag, opt)
+    if os.isfile(path.join(os.programdir(), "modules", "detect", "flags", "has_ " .. flagname .. ".lua")) then
+        local hasflag = import("detect.flags.has_" .. flagname)
+        if hasflag then
+            result = hasflag(flag, opt)
         end
     end
 
     -- attempt to check it directly
     if result == nil then
-        result = try { function () os.runv(opt.program, {flag}); return true end }
+        result = try { function () os.runv(tool.program, {flag}); return true end }
     end
 
     -- save result to cache