Implement #10 - per file reset

README.md

@@ -160,6 +160,8 @@ The following keys apply to library source code and help with generating the .ni
 
 ```noprocess``` = do not process this source file with c2nim [default: false] - this is useful if a file only needs to be manipulated
 
+```reset``` = reset the file back to original state after all processing [default: false]
+
 Multiple entries for the all following keys are possible by appending any .string to the key. E.g. dynlib.win, compile.dir
 
 ```compile``` = file or dir of files of source code to {.compile.} into generated .nim

src/nimgen/external.nim

@@ -60,15 +60,13 @@ proc gitReset*() =
 
   discard execProc("git reset --hard HEAD")
 
-proc gitCheckout*(filename: string) {.used.} =
-  echo "Resetting file: $#" % [filename]
+proc gitCheckout*(file: string) =
+  echo "  Resetting " & file
 
   setCurrentDir(gOutput)
   defer: setCurrentDir(gProjectDir)
 
-  let adjustedFile = filename.replace(gOutput & $DirSep, "")
-
-  discard execProc("git checkout $#" % [adjustedFile])
+  discard execProc("git checkout $#" % file.replace(gOutput & "/", ""))
 
 proc gitRemotePull*(url: string, pull=true) =
   if dirExists(gOutput/".git"):

src/nimgen/runcfg.nim

@@ -24,11 +24,12 @@ proc runFile*(file: string, cfgin: OrderedTableRef = newOrderedTable[string, str
     cfg = cfgin
     sfile = search(file)
 
-  if sfile.len() == 0 or sfile in gDoneRecursive:
+  if sfile in gDoneRecursive:
     return
 
-  echo "Processing " & sfile
-  gDoneRecursive.add(sfile)
+  if sfile.len() != 0:
+    echo "Processing " & sfile
+    gDoneRecursive.add(sfile)
 
   for pattern in gWildcards.keys():
     var m: RegexMatch
@@ -51,6 +52,7 @@ proc runFile*(file: string, cfgin: OrderedTableRef = newOrderedTable[string, str
     let (action, val) = getKey(act)
     if val == true:
       if action == "create":
+        echo "Creating " & file
         createDir(file.splitPath().head)
         writeFile(file, cfg[act])
       elif action in @["prepend", "append", "replace", "comment",
@@ -87,7 +89,9 @@ proc runFile*(file: string, cfgin: OrderedTableRef = newOrderedTable[string, str
         srch = act
 
   if file.splitFile().ext != ".nim":
-    var noprocess = false
+    var
+      noprocess = false
+      reset = false
 
     for act in cfg.keys():
       let (action, val) = getKey(act)
@@ -105,6 +109,8 @@ proc runFile*(file: string, cfgin: OrderedTableRef = newOrderedTable[string, str
             c2nimConfig.defines = true
           elif action == "noprocess":
             noprocess = true
+          elif action == "reset":
+            reset = true
         elif action == "flags":
           c2nimConfig.flags = cfg[act]
         elif action == "ppflags":
@@ -140,6 +146,9 @@ proc runFile*(file: string, cfgin: OrderedTableRef = newOrderedTable[string, str
         if incout.len() != 0:
           prepend(outfile, incout)
 
+    if reset:
+      gitCheckout(sfile)
+
 proc runCfg*(cfg: string) =
   if not fileExists(cfg):
     echo "Config doesn't exist: " & cfg