ctucx.git: nimgit

utils.nim: add proc filemodeStr

diff --git a/nimgit/utils.nim b/nimgit/utils.nim
@@ -1,4 +1,4 @@
-import times
+import times, posix, strutils
 import nimgit2
 import types
 

@@ -16,3 +16,40 @@ proc parseGitSignature* (signature: ptr git_signature): GitSignature =
     result.name  = $signature.name
     result.email = $signature.email
     result.when  = parseGitTime(signature.when)
+
+proc filemodeStr* (m: int): string =
+  var mode = align("", sizeof(m), '-')
+
+  if S_ISREG(cast[Mode](m)):
+    mode[0] = '-'
+  elif S_ISBLK(cast[Mode](m)):
+    mode[0] = 'b';
+  elif S_ISCHR(cast[Mode](m)):
+    mode[0] = 'c';
+  elif S_ISDIR(cast[Mode](m)):
+    mode[0] = 'd';
+  elif S_ISFIFO(cast[Mode](m)):
+    mode[0] = 'p';
+  elif S_ISLNK(cast[Mode](m)):
+    mode[0] = 'l';
+  elif S_ISSOCK(cast[Mode](m)):
+    mode[0] = 's';
+  else:
+    mode[0] = '?';
+
+
+  if cast[bool](m and S_IRUSR): mode[1] = 'r'
+  if cast[bool](m and S_IWUSR): mode[2] = 'w'
+  if cast[bool](m and S_IXUSR): mode[3] = 'x'
+  if cast[bool](m and S_IRGRP): mode[4] = 'r'
+  if cast[bool](m and S_IWGRP): mode[5] = 'w'
+  if cast[bool](m and S_IXGRP): mode[6] = 'x'
+  if cast[bool](m and S_IROTH): mode[7] = 'r'
+  if cast[bool](m and S_IWOTH): mode[8] = 'w'
+  if cast[bool](m and S_IXOTH): mode[9] = 'x'
+
+  if cast[bool](m and S_ISUID): mode[3] = if(mode[3] == 'x'): 's' else: 'S'
+  if cast[bool](m and S_ISGID): mode[6] = if(mode[6] == 'x'): 's' else: 'S'
+  if cast[bool](m and S_ISVTX): mode[9] = if(mode[9] == 'x'): 't' else: 'T'
+
+  result = mode