Bug 2790882: Trailing slash in path.getabsolute (really a patch by Ash Berlin)

CHANGES.txt

@@ -19,6 +19,7 @@
 - Bug 2550759: pchheader option has wrong type
 - Bug 1900333: Parentheses in build path
 - Bug 2790865: SharedLib on OSX fixes (Ash Berlin)
+- Bug 2790882: Trailing slash in path.getabsolute (Ash Berlin)
 
 
 -----

src/base/path.lua

@@ -1,7 +1,7 @@
 --
 -- path.lua
 -- Path manipulation functions.
--- Copyright (c) 2002-2008 Jason Perkins and the Premake project
+-- Copyright (c) 2002-2009 Jason Perkins and the Premake project
 --
 
 
@@ -19,8 +19,8 @@
 		local result = iif (path.isabsolute(p), nil, os.getcwd())
 		
 		-- split up the supplied relative path and tackle it bit by bit
-		for _,part in ipairs(p:explode("/", true)) do
+		for n, part in ipairs(p:explode("/", true)) do
-			if (part == "") then
+			if (part == "" and n == 1) then
 				result = "/"
 			elseif (part == "..") then
 				result = path.getdirectory(result)
@@ -29,6 +29,9 @@
 			end
 		end
 		
+		-- if I end up with a trailing slash remove it
+		result = iif(result:endswith("/"), result:sub(1, -2), result)
+		
 		return result
 	end
 	

tests/test_path.lua

@@ -25,6 +25,11 @@
 		test.isequal("/ProjectB/bin", path.getabsolute("/ProjectA/../ProjectB/bin"))
 	end
 	
+	function T.path.getabsolute_OnTrailingSlash()
+		local expected = path.translate(os.getcwd(), "/") .. "/a/b/c"
+		test.isequal(expected, path.getabsolute("a/b/c/"))
+	end
+	
 	
 --
 -- path.getbasename() tests