X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=generator%2Fgenerator_pr.ml;fp=generator%2Fgenerator_pr.ml;h=eef565e0c745aa32788e0a210cb6fc8a17ca62ab;hp=0000000000000000000000000000000000000000;hb=04d8209077d2227eb1d42695ba71147f78987050;hpb=264629b9f0ace1062b453b2d0ae55e48385189d3

diff --git a/generator/generator_pr.ml b/generator/generator_pr.ml
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+++ b/generator/generator_pr.ml
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+(* libguestfs
+ * Copyright (C) 2009-2010 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *)
+
+(* Please read generator/README first. *)
+
+open Unix
+open Printf
+
+open Generator_utils
+
+(* 'pr' prints to the current output file. *)
+let chan = ref Pervasives.stdout
+let lines = ref 0
+let pr fs =
+  ksprintf
+    (fun str ->
+       let i = count_chars '\n' str in
+       lines := !lines + i;
+       output_string !chan str
+    ) fs
+
+let output_to filename k =
+  let filename_new = filename ^ ".new" in
+  chan := open_out filename_new;
+  k ();
+  close_out !chan;
+  chan := Pervasives.stdout;
+
+  (* Is the new file different from the current file? *)
+  if Sys.file_exists filename && files_equal filename filename_new then
+    unlink filename_new                 (* same, so skip it *)
+  else (
+    (* different, overwrite old one *)
+    (try chmod filename 0o644 with Unix_error _ -> ());
+    rename filename_new filename;
+    chmod filename 0o444;
+    printf "written %s\n%!" filename;
+  )
+
+let get_lines_generated () =
+  !lines