[ostree] pull: Only take up one terminal line for status output

[Colin Walters <walters src gnome org>]

commit 6b31c580caae98a4d796be6239b7b73901f99f31
Author: Colin Walters <walters verbum org>
Date:   Mon Jul 16 22:35:18 2012 -0400

    pull: Only take up one terminal line for status output
    
    And print total bytes transferred at the end.

 src/ostree/ostree-fetcher.c |    6 ++++++
 src/ostree/ostree-fetcher.h |    2 ++
 src/ostree/ostree-pull.c    |   41 +++++++++++++++++++++++++++++++++++------
 3 files changed, 43 insertions(+), 6 deletions(-)
---
diff --git a/src/ostree/ostree-fetcher.c b/src/ostree/ostree-fetcher.c
index 7ab15ed..dcabf6e 100644
--- a/src/ostree/ostree-fetcher.c
+++ b/src/ostree/ostree-fetcher.c
@@ -334,3 +334,9 @@ ostree_fetcher_query_state_text (OstreeFetcher              *self)
   else
     return g_strdup_printf ("Idle");
 }
+
+guint64
+ostree_fetcher_bytes_transferred (OstreeFetcher       *self)
+{
+  return self->total_downloaded;
+}
diff --git a/src/ostree/ostree-fetcher.h b/src/ostree/ostree-fetcher.h
index d32ea6f..803db72 100644
--- a/src/ostree/ostree-fetcher.h
+++ b/src/ostree/ostree-fetcher.h
@@ -49,6 +49,8 @@ OstreeFetcher *ostree_fetcher_new (GFile *tmpdir);
 
 char * ostree_fetcher_query_state_text (OstreeFetcher              *self);
 
+guint64 ostree_fetcher_bytes_transferred (OstreeFetcher       *self);
+
 void ostree_fetcher_request_uri_async (OstreeFetcher         *self,
                                        SoupURI               *uri,
                                        GCancellable          *cancellable,
diff --git a/src/ostree/ostree-pull.c b/src/ostree/ostree-pull.c
index 156facf..96c967a 100644
--- a/src/ostree/ostree-pull.c
+++ b/src/ostree/ostree-pull.c
@@ -104,6 +104,7 @@ typedef struct {
   gboolean      caught_error;
 
   gboolean      stdout_is_tty;
+  guint         last_padding;
 } OtPullData;
 
 static SoupURI *
@@ -165,7 +166,18 @@ uri_fetch_update_status (gpointer user_data)
 
   fetcher_status = ostree_fetcher_query_state_text (pull_data->fetcher);
   g_string_append (status, fetcher_status);
-  g_print ("%s\n", status->str);
+  if (status->len > pull_data->last_padding)
+    pull_data->last_padding = status->len;
+  else
+    {
+      guint diff = pull_data->last_padding - status->len;
+      while (diff > 0)
+        {
+          g_string_append_c (status, ' ');
+          diff--;
+        }
+    }
+  g_print ("%c8%s", 0x1B, status->str);
 
   g_string_free (status, TRUE);
 
@@ -202,14 +214,22 @@ run_mainloop_monitor_fetcher (OtPullData   *pull_data)
 {
   GSource *update_timeout = NULL;
 
-  update_timeout = g_timeout_source_new_seconds (1);
-  g_source_set_callback (update_timeout, uri_fetch_update_status, pull_data, NULL);
-  g_source_attach (update_timeout, g_main_loop_get_context (pull_data->loop));
-  g_source_unref (update_timeout);
+  if (pull_data->stdout_is_tty)
+    {
+      g_print ("%c7", 0x1B);
+      update_timeout = g_timeout_source_new_seconds (1);
+      g_source_set_callback (update_timeout, uri_fetch_update_status, pull_data, NULL);
+      g_source_attach (update_timeout, g_main_loop_get_context (pull_data->loop));
+      g_source_unref (update_timeout);
+    }
   
   g_main_loop_run (pull_data->loop);
 
-  g_source_destroy (update_timeout);
+  if (pull_data->stdout_is_tty)
+    {
+      g_print ("\n");
+      g_source_destroy (update_timeout);
+    }
 }
 
 typedef struct {
@@ -1428,6 +1448,7 @@ ostree_builtin_pull (int argc, char **argv, GFile *repo_path, GError **error)
   SoupURI *summary_uri = NULL;
   GKeyFile *config = NULL;
   char **configured_branches = NULL;
+  guint64 bytes_transferred;
 
   memset (pull_data, 0, sizeof (*pull_data));
 
@@ -1554,6 +1575,8 @@ ostree_builtin_pull (int argc, char **argv, GFile *repo_path, GError **error)
   if (!ostree_repo_prepare_transaction (pull_data->repo, NULL, error))
     goto out;
 
+  g_print ("Analyzing objects needed...\n");
+
   g_hash_table_iter_init (&hash_iter, commits_to_fetch);
   while (g_hash_table_iter_next (&hash_iter, &key, &value))
     {
@@ -1620,6 +1643,12 @@ ostree_builtin_pull (int argc, char **argv, GFile *repo_path, GError **error)
                                                   cancellable, error))
     goto out;
 
+  bytes_transferred = ostree_fetcher_bytes_transferred (pull_data->fetcher);
+  if (bytes_transferred > 0)
+    {
+      g_print ("%" G_GUINT64_FORMAT " KiB transferred\n", (guint64)(bytes_transferred / 1024.0));
+    }
+
   ret = TRUE;
  out:
   if (pull_data->loop)