Merge pull request #1 from davidanthoff/various-macros

Add @__DIR_P__, @__FILE_P__ and @Local macro

README.md

@@ -138,6 +138,8 @@ chmod | chmod (recursive unix-only)
 chown (unix only) | chown (unix only)
 N/A | read
 N/A | write
+@__DIR__ | @__PATH__
+@__FILE__ | @__FILEPATH__
 
 ## TODO:
 * cross platform chmod and chown

src/FilePathsBase.jl

@@ -46,6 +46,8 @@ export
 
     # Macros
     @p_str,
+    @__PATH__,
+    @__FILEPATH__,
 
     # Constants
     READ,

src/path.jl

@@ -27,6 +27,38 @@ home() = Path(homedir())
 
 anchor(path::AbstractPath) = drive(path) * root(path)
 
+"""
+    @__PATH__ -> AbstractPath
+
+@__PATH__ expands to a path with the directory part of the absolute path
+of the file containing the macro. Returns an empty Path if run from a REPL or
+if evaluated by julia -e <expr>.
+"""
+macro __PATH__()
+    :(Path(@__DIR__()===nothing ? Path() : @__DIR__))
+end
+
+"""
+    @__FILEPATH__ -> AbstractPath
+
+@__FILEPATH__ expands to a path with the absolute file path of the file
+containing the macro. Returns an empty Path if run from a REPL or if
+evaluated by julia -e <expr>.
+"""
+macro __FILEPATH__()
+    :(Path(@__FILE__()===nothing ? Path() : @__FILE__))
+end
+
+"""
+    @LOCAL(filespec)
+
+Construct an absolute path to `filespec` relative to the source file
+containing the macro call.
+"""
+macro LOCAL(filespec)
+    :(join(@__PATH__, Path($(esc(filespec)))))
+end
+
 #=
 Path Modifiers
 ===============================================

test/path.jl

@@ -81,6 +81,9 @@ cd(abs(parent(Path(@__FILE__)))) do
         @test p4.drive == ""
         @test p4.root == ""
 
+        @test @__PATH__() == Path(@__DIR__)
+        @test @__FILEPATH__() == Path(@__FILE__)
+        @test FilePathsBase.@LOCAL("foo.txt") == join(@__PATH__, "foo.txt")
     end
 end