1 files changed, 885 insertions, 216 deletions
diff --git a/pluma/pluma-document-saver.c b/pluma/pluma-document-saver.c
index 645daf41..913444d7 100644
--- a/pluma/pluma-document-saver.c
+++ b/pluma/pluma-document-saver.c
@@ -31,27 +31,26 @@
 #include <config.h>
 #endif
 
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-
 #include <glib/gi18n.h>
+#include <glib.h>
+#include <gio/gio.h>
+#include <string.h>
 
 #include "pluma-document-saver.h"
-#include "pluma-debug.h"
+#include "pluma-document-input-stream.h"
 #include "pluma-prefs-manager.h"
+#include "pluma-debug.h"
 #include "pluma-marshal.h"
 #include "pluma-utils.h"
 #include "pluma-enum-types.h"
-#include "pluma-gio-document-saver.h"
 
-G_DEFINE_ABSTRACT_TYPE(PlumaDocumentSaver, pluma_document_saver, G_TYPE_OBJECT)
+#define WRITE_CHUNK_SIZE 8192
 
 /* Signals */
 
 enum {
- SAVING,
- LAST_SIGNAL
+ SAVING,
+ LAST_SIGNAL
 };
 
 static guint signals[LAST_SIGNAL] = { 0 };
@@ -59,301 +58,971 @@ static guint signals[LAST_SIGNAL] = { 0 };
 /* Properties */
 
 enum {
- PROP_0,
- PROP_DOCUMENT,
- PROP_URI,
- PROP_ENCODING,
- PROP_NEWLINE_TYPE,
- PROP_FLAGS
+ PROP_0,
+ PROP_DOCUMENT,
+ PROP_URI,
+ PROP_ENCODING,
+ PROP_NEWLINE_TYPE,
+ PROP_FLAGS
+};
+
+typedef struct
+{
+ PlumaDocumentSaver *saver;
+ gchar buffer[WRITE_CHUNK_SIZE];
+ GCancellable *cancellable;
+ gboolean tried_mount;
+ gssize written;
+ gssize read;
+ GError *error;
+} AsyncData;
+
+#define REMOTE_QUERY_ATTRIBUTES G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE "," \
+ G_FILE_ATTRIBUTE_TIME_MODIFIED "," \
+ G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC
+
+static void check_modified_async (AsyncData *async);
+
+struct _PlumaDocumentSaverPrivate
+{
+ GFileInfo *info;
+ PlumaDocument *document;
+ gboolean used;
+
+ gchar *uri;
+ const PlumaEncoding *encoding;
+ PlumaDocumentNewlineType newline_type;
+
+ PlumaDocumentSaveFlags flags;
+
+ gboolean keep_backup;
+
+ gint64 old_mtime;
+
+ goffset size;
+ goffset bytes_written;
+
+ GFile *gfile;
+ GCancellable *cancellable;
+ GOutputStream *stream;
+ GInputStream *input;
+
+ GError *error;
 };
 
+G_DEFINE_TYPE_WITH_PRIVATE (PlumaDocumentSaver, pluma_document_saver, G_TYPE_OBJECT)
+
 static void
 pluma_document_saver_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec)
-{
- PlumaDocumentSaver *saver = PLUMA_DOCUMENT_SAVER (object);
-
- switch (prop_id)
- {
- case PROP_DOCUMENT:
- g_return_if_fail (saver->document == NULL);
- saver->document = g_value_get_object (value);
- break;
- case PROP_URI:
- g_return_if_fail (saver->uri == NULL);
- saver->uri = g_value_dup_string (value);
- break;
- case PROP_ENCODING:
- g_return_if_fail (saver->encoding == NULL);
- saver->encoding = g_value_get_boxed (value);
- break;
- case PROP_NEWLINE_TYPE:
- saver->newline_type = g_value_get_enum (value);
- break;
- case PROP_FLAGS:
- saver->flags = g_value_get_flags (value);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ PlumaDocumentSaver *saver = PLUMA_DOCUMENT_SAVER (object);
+
+ switch (prop_id)
+ {
+ case PROP_DOCUMENT:
+ g_return_if_fail (saver->priv->document == NULL);
+ saver->priv->document = g_value_get_object (value);
+ break;
+ case PROP_URI:
+ g_return_if_fail (saver->priv->uri == NULL);
+ saver->priv->uri = g_value_dup_string (value);
+ break;
+ case PROP_ENCODING:
+ g_return_if_fail (saver->priv->encoding == NULL);
+ saver->priv->encoding = g_value_get_boxed (value);
+ break;
+ case PROP_NEWLINE_TYPE:
+ saver->priv->newline_type = g_value_get_enum (value);
+ break;
+ case PROP_FLAGS:
+ saver->priv->flags = g_value_get_flags (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
 }
 
 static void
 pluma_document_saver_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec)
-{
- PlumaDocumentSaver *saver = PLUMA_DOCUMENT_SAVER (object);
-
- switch (prop_id)
- {
- case PROP_DOCUMENT:
- g_value_set_object (value, saver->document);
- break;
- case PROP_URI:
- g_value_set_string (value, saver->uri);
- break;
- case PROP_ENCODING:
- g_value_set_boxed (value, saver->encoding);
- break;
- case PROP_NEWLINE_TYPE:
- g_value_set_enum (value, saver->newline_type);
- break;
- case PROP_FLAGS:
- g_value_set_flags (value, saver->flags);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ PlumaDocumentSaver *saver = PLUMA_DOCUMENT_SAVER (object);
+
+ switch (prop_id)
+ {
+ case PROP_DOCUMENT:
+ g_value_set_object (value, saver->priv->document);
+ break;
+ case PROP_URI:
+ g_value_set_string (value, saver->priv->uri);
+ break;
+ case PROP_ENCODING:
+ g_value_set_boxed (value, saver->priv->encoding);
+ break;
+ case PROP_NEWLINE_TYPE:
+ g_value_set_enum (value, saver->priv->newline_type);
+ break;
+ case PROP_FLAGS:
+ g_value_set_flags (value, saver->priv->flags);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
 }
 
 static void
 pluma_document_saver_finalize (GObject *object)
 {
- PlumaDocumentSaver *saver = PLUMA_DOCUMENT_SAVER (object);
+ PlumaDocumentSaverPrivate *priv = pluma_document_saver_get_instance_private (PLUMA_DOCUMENT_SAVER(object));
 
- g_free (saver->uri);
+ g_free (priv->uri);
 
- G_OBJECT_CLASS (pluma_document_saver_parent_class)->finalize (object);
+ G_OBJECT_CLASS (pluma_document_saver_parent_class)->finalize (object);
 }
 
 static void
 pluma_document_saver_dispose (GObject *object)
 {
- PlumaDocumentSaver *saver = PLUMA_DOCUMENT_SAVER (object);
+ PlumaDocumentSaverPrivate *priv = pluma_document_saver_get_instance_private (PLUMA_DOCUMENT_SAVER(object));
+
+ if (priv->cancellable != NULL)
+ {
+ g_cancellable_cancel (priv->cancellable);
+ g_object_unref (priv->cancellable);
+ priv->cancellable = NULL;
+ }
+
+ if (priv->gfile != NULL)
+ {
+ g_object_unref (priv->gfile);
+ priv->gfile = NULL;
+ }
+
+ if (priv->error != NULL)
+ {
+ g_error_free (priv->error);
+ priv->error = NULL;
+ }
+
+ if (priv->stream != NULL)
+ {
+ g_object_unref (priv->stream);
+ priv->stream = NULL;
+ }
 
- if (saver->info != NULL)
- {
- g_object_unref (saver->info);
- saver->info = NULL;
- }
+ if (priv->info != NULL)
+ {
+ g_object_unref (priv->info);
+ priv->info = NULL;
+ }
 
- G_OBJECT_CLASS (pluma_document_saver_parent_class)->dispose (object);
+ G_OBJECT_CLASS (pluma_document_saver_parent_class)->dispose (object);
+}
+
+static AsyncData *
+async_data_new (PlumaDocumentSaver *gvsaver)
+{
+ AsyncData *async;
+
+ async = g_slice_new (AsyncData);
+ async->saver = gvsaver;
+ async->cancellable = g_object_ref (gvsaver->priv->cancellable);
+
+ async->tried_mount = FALSE;
+ async->written = 0;
+ async->read = 0;
+
+ async->error = NULL;
+
+ return async;
+}
+
+static void
+async_data_free (AsyncData *async)
+{
+ g_object_unref (async->cancellable);
+
+ if (async->error)
+ {
+ g_error_free (async->error);
+ }
+
+ g_slice_free (AsyncData, async);
 }
 
 static void
 pluma_document_saver_class_init (PlumaDocumentSaverClass *klass)
 {
- GObjectClass *object_class = G_OBJECT_CLASS (klass);
-
- object_class->finalize = pluma_document_saver_finalize;
- object_class->dispose = pluma_document_saver_dispose;
- object_class->set_property = pluma_document_saver_set_property;
- object_class->get_property = pluma_document_saver_get_property;
-
- g_object_class_install_property (object_class,
- PROP_DOCUMENT,
- g_param_spec_object ("document",
- "Document",
- "The PlumaDocument this PlumaDocumentSaver is associated with",
- PLUMA_TYPE_DOCUMENT,
- G_PARAM_READWRITE |
- G_PARAM_CONSTRUCT_ONLY |
- G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (object_class,
- PROP_URI,
- g_param_spec_string ("uri",
- "URI",
- "The URI this PlumaDocumentSaver saves the document to",
- "",
- G_PARAM_READWRITE |
- G_PARAM_CONSTRUCT_ONLY |
- G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (object_class,
- PROP_ENCODING,
- g_param_spec_boxed ("encoding",
- "URI",
- "The encoding of the saved file",
- PLUMA_TYPE_ENCODING,
- G_PARAM_READWRITE |
- G_PARAM_CONSTRUCT_ONLY |
- G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (object_class,
- PROP_NEWLINE_TYPE,
- g_param_spec_enum ("newline-type",
- "Newline type",
- "The accepted types of line ending",
- PLUMA_TYPE_DOCUMENT_NEWLINE_TYPE,
- PLUMA_DOCUMENT_NEWLINE_TYPE_LF,
- G_PARAM_READWRITE |
- G_PARAM_STATIC_NAME |
- G_PARAM_STATIC_BLURB |
- G_PARAM_CONSTRUCT_ONLY));
-
- g_object_class_install_property (object_class,
- PROP_FLAGS,
- g_param_spec_flags ("flags",
- "Flags",
- "The flags for the saving operation",
- PLUMA_TYPE_DOCUMENT_SAVE_FLAGS,
- 0,
- G_PARAM_READWRITE |
- G_PARAM_CONSTRUCT_ONLY));
-
- signals[SAVING] =
- g_signal_new ("saving",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (PlumaDocumentSaverClass, saving),
- NULL, NULL,
- pluma_marshal_VOID__BOOLEAN_POINTER,
- G_TYPE_NONE,
- 2,
- G_TYPE_BOOLEAN,
- G_TYPE_POINTER);
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->dispose = pluma_document_saver_dispose;
+ object_class->finalize = pluma_document_saver_finalize;
+ object_class->set_property = pluma_document_saver_set_property;
+ object_class->get_property = pluma_document_saver_get_property;
+
+ g_object_class_install_property (object_class,
+ PROP_DOCUMENT,
+ g_param_spec_object ("document",
+ "Document",
+ "The PlumaDocument this PlumaDocumentSaver is associated with",
+ PLUMA_TYPE_DOCUMENT,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY |
+ G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (object_class,
+ PROP_URI,
+ g_param_spec_string ("uri",
+ "URI",
+ "The URI this PlumaDocumentSaver saves the document to",
+ "",
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY |
+ G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (object_class,
+ PROP_ENCODING,
+ g_param_spec_boxed ("encoding",
+ "URI",
+ "The encoding of the saved file",
+ PLUMA_TYPE_ENCODING,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY |
+ G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (object_class,
+ PROP_NEWLINE_TYPE,
+ g_param_spec_enum ("newline-type",
+ "Newline type",
+ "The accepted types of line ending",
+ PLUMA_TYPE_DOCUMENT_NEWLINE_TYPE,
+ PLUMA_DOCUMENT_NEWLINE_TYPE_LF,
+ G_PARAM_READWRITE |
+ G_PARAM_STATIC_NAME |
+ G_PARAM_STATIC_BLURB |
+ G_PARAM_CONSTRUCT_ONLY));
+
+ g_object_class_install_property (object_class,
+ PROP_FLAGS,
+ g_param_spec_flags ("flags",
+ "Flags",
+ "The flags for the saving operation",
+ PLUMA_TYPE_DOCUMENT_SAVE_FLAGS,
+ 0,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+
+ signals[SAVING] =
+ g_signal_new ("saving",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (PlumaDocumentSaverClass, saving),
+ NULL, NULL,
+ pluma_marshal_VOID__BOOLEAN_POINTER,
+ G_TYPE_NONE,
+ 2,
+ G_TYPE_BOOLEAN,
+ G_TYPE_POINTER);
 }
 
 static void
 pluma_document_saver_init (PlumaDocumentSaver *saver)
 {
- saver->used = FALSE;
+ saver->priv = pluma_document_saver_get_instance_private (saver);
+
+ saver->priv->cancellable = g_cancellable_new ();
+ saver->priv->error = NULL;
+ saver->priv->used = FALSE;
 }
 
 PlumaDocumentSaver *
 pluma_document_saver_new (PlumaDocument *doc,
- const gchar *uri,
- const PlumaEncoding *encoding,
- PlumaDocumentNewlineType newline_type,
- PlumaDocumentSaveFlags flags)
+ const gchar *uri,
+ const PlumaEncoding *encoding,
+ PlumaDocumentNewlineType newline_type,
+ PlumaDocumentSaveFlags flags)
 {
- PlumaDocumentSaver *saver;
- GType saver_type;
+ return PLUMA_DOCUMENT_SAVER (g_object_new (PLUMA_TYPE_DOCUMENT_SAVER,
+ "document", doc,
+ "uri", uri,
+ "encoding", encoding,
+ "newline_type", newline_type,
+ "flags", flags,
+ NULL));
 
- g_return_val_if_fail (PLUMA_IS_DOCUMENT (doc), NULL);
+}
 
- saver_type = PLUMA_TYPE_GIO_DOCUMENT_SAVER;
+static void
+remote_save_completed_or_failed (PlumaDocumentSaver *gvsaver,
+ AsyncData *async)
+{
+ pluma_document_saver_saving (PLUMA_DOCUMENT_SAVER (gvsaver),
+ TRUE,
+ gvsaver->priv->error);
 
- if (encoding == NULL)
- encoding = pluma_encoding_get_utf8 ();
+ if (async)
+ async_data_free (async);
+}
 
- saver = PLUMA_DOCUMENT_SAVER (g_object_new (saver_type,
- "document", doc,
- "uri", uri,
- "encoding", encoding,
- "newline_type", newline_type,
- "flags", flags,
- NULL));
+static void
+async_failed (AsyncData *async,
+ GError *error)
+{
+ g_propagate_error (&async->saver->priv->error, error);
+ remote_save_completed_or_failed (async->saver, async);
+}
+
+/* BEGIN NOTE:
+ *
+ * This fixes an issue in GOutputStream that applies the atomic replace
+ * save strategy. The stream moves the written file to the original file
+ * when the stream is closed. However, there is no way currently to tell
+ * the stream that the save should be aborted (there could be a
+ * conversion error). The patch explicitly closes the output stream
+ * in all these cases with a GCancellable in the cancelled state, causing
+ * the output stream to close, but not move the file. This makes use
+ * of an implementation detail in the local file stream and should be
+ * properly fixed by adding the appropriate API in . Until then, at least
+ * we prevent data corruption for now.
+ *
+ * Relevant bug reports:
+ *
+ * Bug 615110 - write file ignore encoding errors (pluma)
+ * https://bugzilla.gnome.org/show_bug.cgi?id=615110
+ *
+ * Bug 602412 - g_file_replace does not restore original file when there is
+ * errors while writing (glib/)
+ * https://bugzilla.gnome.org/show_bug.cgi?id=602412
+ */
+static void
+cancel_output_stream_ready_cb (GOutputStream *stream,
+ GAsyncResult *result,
+ AsyncData *async)
+{
+ GError *error;
+
+ g_output_stream_close_finish (stream, result, NULL);
+
+ /* check cancelled state manually */
+ if (g_cancellable_is_cancelled (async->cancellable) || async->error == NULL)
+ {
+ async_data_free (async);
+ return;
+ }
 
- return saver;
+ error = async->error;
+ async->error = NULL;
+
+ async_failed (async, error);
 }
 
-void
-pluma_document_saver_saving (PlumaDocumentSaver *saver,
- gboolean completed,
- GError *error)
+static void
+cancel_output_stream (AsyncData *async)
+{
+ GCancellable *cancellable;
+
+ pluma_debug_message (DEBUG_SAVER, "Cancel output stream");
+
+ cancellable = g_cancellable_new ();
+ g_cancellable_cancel (cancellable);
+
+ g_output_stream_close_async (async->saver->priv->stream,
+ G_PRIORITY_HIGH,
+ cancellable,
+ (GAsyncReadyCallback)cancel_output_stream_ready_cb,
+ async);
+
+ g_object_unref (cancellable);
+}
+
+static void
+cancel_output_stream_and_fail (AsyncData *async,
+ GError *error)
+{
+
+ pluma_debug_message (DEBUG_SAVER, "Cancel output stream and fail");
+
+ g_propagate_error (&async->error, error);
+ cancel_output_stream (async);
+}
+
+/*
+ * END NOTE
+ */
+
+static void
+remote_get_info_cb (GFile *source,
+ GAsyncResult *res,
+ AsyncData *async)
 {
- /* the object will be unrefed in the callback of the saving
- * signal, so we need to prevent finalization.
- */
- if (completed)
- {
- g_object_ref (saver);
- }
+ PlumaDocumentSaver *saver;
+ GFileInfo *info;
+ GError *error = NULL;
+
+ pluma_debug (DEBUG_SAVER);
+
+ /* check cancelled state manually */
+ if (g_cancellable_is_cancelled (async->cancellable))
+ {
+ async_data_free (async);
+ return;
+ }
 
- g_signal_emit (saver, signals[SAVING], 0, completed, error);
+ saver = async->saver;
 
- if (completed)
- {
- if (error == NULL)
- pluma_debug_message (DEBUG_SAVER, "save completed");
- else
- pluma_debug_message (DEBUG_SAVER, "save failed");
+ pluma_debug_message (DEBUG_SAVER, "Finished query info on file");
+ info = g_file_query_info_finish (source, res, &error);
 
- g_object_unref (saver);
- }
+ if (info != NULL)
+ {
+ if (saver->priv->info != NULL)
+ g_object_unref (saver->priv->info);
+
+ saver->priv->info = info;
+ }
+ else
+ {
+ pluma_debug_message (DEBUG_SAVER, "Query info failed: %s", error->message);
+ g_propagate_error (&saver->priv->error, error);
+ }
+
+ remote_save_completed_or_failed (saver, async);
+}
+
+static void
+close_async_ready_get_info_cb (GOutputStream *stream,
+ GAsyncResult *res,
+ AsyncData *async)
+{
+ GError *error = NULL;
+
+ pluma_debug (DEBUG_SAVER);
+
+ /* check cancelled state manually */
+ if (g_cancellable_is_cancelled (async->cancellable))
+ {
+ async_data_free (async);
+ return;
+ }
+
+ pluma_debug_message (DEBUG_SAVER, "Finished closing stream");
+
+ if (!g_output_stream_close_finish (stream, res, &error))
+ {
+ pluma_debug_message (DEBUG_SAVER, "Closing stream error: %s", error->message);
+
+ async_failed (async, error);
+ return;
+ }
+
+ /* get the file info: note we cannot use
+ * g_file_output_stream_query_info_async since it is not able to get the
+ * content type etc, beside it is not supported by gvfs.
+ * I'm not sure this is actually necessary, can't we just use
+ * g_content_type_guess (since we have the file name and the data)
+ */
+ pluma_debug_message (DEBUG_SAVER, "Query info on file");
+ g_file_query_info_async (async->saver->priv->gfile,
+ REMOTE_QUERY_ATTRIBUTES,
+ G_FILE_QUERY_INFO_NONE,
+ G_PRIORITY_HIGH,
+ async->cancellable,
+ (GAsyncReadyCallback) remote_get_info_cb,
+ async);
+}
+
+static void
+write_complete (AsyncData *async)
+{
+ GError *error = NULL;
+
+ /* first we close the input stream */
+ pluma_debug_message (DEBUG_SAVER, "Close input stream");
+ if (!g_input_stream_close (async->saver->priv->input,
+ async->cancellable, &error))
+ {
+ pluma_debug_message (DEBUG_SAVER, "Closing input stream error: %s", error->message);
+ cancel_output_stream_and_fail (async, error);
+ return;
+ }
+
+ /* now we close the output stream */
+ pluma_debug_message (DEBUG_SAVER, "Close output stream");
+ g_output_stream_close_async (async->saver->priv->stream,
+ G_PRIORITY_HIGH,
+ async->cancellable,
+ (GAsyncReadyCallback)close_async_ready_get_info_cb,
+ async);
+}
+
+/* prototype, because they call each other... isn't C lovely */
+static void read_file_chunk (AsyncData *async);
+static void write_file_chunk (AsyncData *async);
+
+static void
+async_write_cb (GOutputStream *stream,
+ GAsyncResult *res,
+ AsyncData *async)
+{
+ PlumaDocumentSaver *saver;
+ gssize bytes_written;
+ GError *error = NULL;
+
+ pluma_debug (DEBUG_SAVER);
+
+ /* Check cancelled state manually */
+ if (g_cancellable_is_cancelled (async->cancellable))
+ {
+ cancel_output_stream (async);
+ return;
+ }
+
+ bytes_written = g_output_stream_write_finish (stream, res, &error);
+
+ pluma_debug_message (DEBUG_SAVER, "Written: %" G_GSSIZE_FORMAT, bytes_written);
+
+ if (bytes_written == -1)
+ {
+ pluma_debug_message (DEBUG_SAVER, "Write error: %s", error->message);
+ cancel_output_stream_and_fail (async, error);
+ return;
+ }
+
+ saver = async->saver;
+ async->written += bytes_written;
+
+ /* write again */
+ if (async->written != async->read)
+ {
+ write_file_chunk (async);
+ return;
+ }
+
+ /* note that this signal blocks the write... check if it isn't
+ * a performance problem
+ */
+ pluma_document_saver_saving (saver, FALSE, NULL);
+
+ read_file_chunk (async);
+}
+
+static void
+write_file_chunk (AsyncData *async)
+{
+ PlumaDocumentSaver *saver;
+
+ pluma_debug (DEBUG_SAVER);
+
+ saver = async->saver;
+
+ g_output_stream_write_async (G_OUTPUT_STREAM (saver->priv->stream),
+ async->buffer + async->written,
+ async->read - async->written,
+ G_PRIORITY_HIGH,
+ async->cancellable,
+ (GAsyncReadyCallback) async_write_cb,
+ async);
+}
+
+static void
+read_file_chunk (AsyncData *async)
+{
+ PlumaDocumentSaver *saver;
+ PlumaDocumentInputStream *dstream;
+ GError *error = NULL;
+
+ pluma_debug (DEBUG_SAVER);
+
+ saver = async->saver;
+ async->written = 0;
+
+ /* we use sync methods on doc stream since it is in memory. Using async
+ would be racy and we can endup with invalidated iters */
+ async->read = g_input_stream_read (saver->priv->input,
+ async->buffer,
+ WRITE_CHUNK_SIZE,
+ async->cancellable,
+ &error);
+
+ if (error != NULL)
+ {
+ cancel_output_stream_and_fail (async, error);
+ return;
+ }
+
+ /* Check if we finished reading and writing */
+ if (async->read == 0)
+ {
+ write_complete (async);
+ return;
+ }
+
+ /* Get how many chars have been read */
+ dstream = PLUMA_DOCUMENT_INPUT_STREAM (saver->priv->input);
+ saver->priv->bytes_written = pluma_document_input_stream_tell (dstream);
+
+ write_file_chunk (async);
+}
+
+static void
+async_replace_ready_callback (GFile *source,
+ GAsyncResult *res,
+ AsyncData *async)
+{
+ PlumaDocumentSaver *saver;
+ GCharsetConverter *converter;
+ GFileOutputStream *file_stream;
+ GError *error = NULL;
+
+ pluma_debug (DEBUG_SAVER);
+
+ /* Check cancelled state manually */
+ if (g_cancellable_is_cancelled (async->cancellable))
+ {
+ async_data_free (async);
+ return;
+ }
+
+ saver = async->saver;
+ file_stream = g_file_replace_finish (source, res, &error);
+
+ /* handle any error that might occur */
+ if (!file_stream)
+ {
+ pluma_debug_message (DEBUG_SAVER, "Opening file failed: %s", error->message);
+ async_failed (async, error);
+ return;
+ }
+
+ /* FIXME: manage converter error? */
+ pluma_debug_message (DEBUG_SAVER, "Encoding charset: %s",
+ pluma_encoding_get_charset (saver->priv->encoding));
+
+ if (saver->priv->encoding != pluma_encoding_get_utf8 ())
+ {
+ converter = g_charset_converter_new (pluma_encoding_get_charset (saver->priv->encoding),
+ "UTF-8",
+ NULL);
+ saver->priv->stream = g_converter_output_stream_new (G_OUTPUT_STREAM (file_stream),
+ G_CONVERTER (converter));
+
+ g_object_unref (file_stream);
+ g_object_unref (converter);
+ }
+ else
+ {
+ saver->priv->stream = G_OUTPUT_STREAM (file_stream);
+ }
+
+ saver->priv->input = pluma_document_input_stream_new (GTK_TEXT_BUFFER (saver->priv->document),
+ saver->priv->newline_type);
+
+ saver->priv->size = pluma_document_input_stream_get_total_size (PLUMA_DOCUMENT_INPUT_STREAM (saver->priv->input));
+
+ read_file_chunk (async);
+}
+
+static void
+begin_write (AsyncData *async)
+{
+ PlumaDocumentSaver *saver;
+ gboolean backup;
+
+ pluma_debug_message (DEBUG_SAVER, "Start replacing file contents");
+
+ /* For remote files we simply use g_file_replace_async. There is no
+ * backup as of yet
+ */
+ saver = async->saver;
+
+ /* Do not make backups for remote files so they do not clutter remote systems */
+ backup = (saver->priv->keep_backup && pluma_document_is_local (saver->priv->document));
+
+ pluma_debug_message (DEBUG_SAVER, "File contents size: %" G_GINT64_FORMAT, saver->priv->size);
+ pluma_debug_message (DEBUG_SAVER, "Calling replace_async");
+ pluma_debug_message (DEBUG_SAVER, backup ? "Keep backup" : "Discard backup");
+
+ g_file_replace_async (saver->priv->gfile,
+ NULL,
+ backup,
+ G_FILE_CREATE_NONE,
+ G_PRIORITY_HIGH,
+ async->cancellable,
+ (GAsyncReadyCallback) async_replace_ready_callback,
+ async);
+}
+
+static void
+mount_ready_callback (GFile *file,
+ GAsyncResult *res,
+ AsyncData *async)
+{
+ GError *error = NULL;
+ gboolean mounted;
+
+ pluma_debug (DEBUG_SAVER);
+
+ /* manual check for cancelled state */
+ if (g_cancellable_is_cancelled (async->cancellable))
+ {
+ async_data_free (async);
+ return;
+ }
+
+ mounted = g_file_mount_enclosing_volume_finish (file, res, &error);
+
+ if (!mounted)
+ {
+ async_failed (async, error);
+ }
+ else
+ {
+ /* try again to get the modified state */
+ check_modified_async (async);
+ }
+}
+
+static void
+recover_not_mounted (AsyncData *async)
+{
+ PlumaDocument *doc;
+ GMountOperation *mount_operation;
+
+ pluma_debug (DEBUG_LOADER);
+
+ doc = pluma_document_saver_get_document (async->saver);
+ mount_operation = _pluma_document_create_mount_operation (doc);
+
+ async->tried_mount = TRUE;
+ g_file_mount_enclosing_volume (async->saver->priv->gfile,
+ G_MOUNT_MOUNT_NONE,
+ mount_operation,
+ async->cancellable,
+ (GAsyncReadyCallback) mount_ready_callback,
+ async);
+
+ g_object_unref (mount_operation);
+}
+
+static void
+check_modification_callback (GFile *source,
+ GAsyncResult *res,
+ AsyncData *async)
+{
+ PlumaDocumentSaver *saver;
+ GError *error = NULL;
+ GFileInfo *info;
+
+ pluma_debug (DEBUG_SAVER);
+
+ /* manually check cancelled state */
+ if (g_cancellable_is_cancelled (async->cancellable))
+ {
+ async_data_free (async);
+ return;
+ }
+
+ saver = async->saver;
+ info = g_file_query_info_finish (source, res, &error);
+ if (info == NULL)
+ {
+ if (error->code == G_IO_ERROR_NOT_MOUNTED && !async->tried_mount)
+ {
+ recover_not_mounted (async);
+ g_error_free (error);
+ return;
+ }
+
+ /* it's perfectly fine if the file doesn't exist yet */
+ if (error->code != G_IO_ERROR_NOT_FOUND)
+ {
+ pluma_debug_message (DEBUG_SAVER, "Error getting modification: %s", error->message);
+
+ async_failed (async, error);
+ return;
+ }
+ }
+
+ /* check if the mtime is > what we know about it (if we have it) */
+ if (info != NULL && g_file_info_has_attribute (info, G_FILE_ATTRIBUTE_TIME_MODIFIED))
+ {
+ guint64 mtime;
+ gint64 old_mtime;
+
+ mtime = g_file_info_get_attribute_uint64 (info,
+ G_FILE_ATTRIBUTE_TIME_MODIFIED) * G_USEC_PER_SEC;
+ if (g_file_info_has_attribute (info,
+ G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC))
+ {
+ guint32 usec = g_file_info_get_attribute_uint32 (info,
+ G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC);
+ mtime += (guint64) usec;
+ }
+
+ old_mtime = saver->priv->old_mtime;
+
+ if ((old_mtime > 0 || ((gint64) mtime) > 0) && (((gint64) mtime) != old_mtime) &&
+ (saver->priv->flags & PLUMA_DOCUMENT_SAVE_IGNORE_MTIME) == 0)
+ {
+ pluma_debug_message (DEBUG_SAVER, "File is externally modified");
+ g_set_error (&saver->priv->error,
+ PLUMA_DOCUMENT_ERROR,
+ PLUMA_DOCUMENT_ERROR_EXTERNALLY_MODIFIED,
+ "Externally modified");
+
+ remote_save_completed_or_failed (saver, async);
+ g_object_unref (info);
+
+ return;
+ }
+ }
+
+ if (info != NULL)
+ g_object_unref (info);
+
+ /* modification check passed, start write */
+ begin_write (async);
+}
+
+static void
+check_modified_async (AsyncData *async)
+{
+ pluma_debug_message (DEBUG_SAVER, "Check externally modified");
+
+ g_file_query_info_async (async->saver->priv->gfile,
+ G_FILE_ATTRIBUTE_TIME_MODIFIED "," G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC,
+ G_FILE_QUERY_INFO_NONE,
+ G_PRIORITY_HIGH,
+ async->cancellable,
+ (GAsyncReadyCallback) check_modification_callback,
+ async);
+}
+
+static gboolean
+save_remote_file_real (PlumaDocumentSaver *saver)
+{
+ AsyncData *async;
+
+ pluma_debug_message (DEBUG_SAVER, "Starting save");
+
+ /* First find out if the file is modified externally. This requires
+ * a stat, but I don't think we can do this any other way
+ */
+ async = async_data_new (saver);
+
+ check_modified_async (async);
+
+ /* return false to stop timeout */
+ return FALSE;
 }
 
 void
 pluma_document_saver_save (PlumaDocumentSaver *saver,
 gint64 *old_mtime)
 {
- pluma_debug (DEBUG_SAVER);
+ pluma_debug (DEBUG_SAVER);
+
+ g_return_if_fail (PLUMA_IS_DOCUMENT_SAVER (saver));
+ g_return_if_fail (saver->priv->uri != NULL && strlen (saver->priv->uri) > 0);
+
+ g_return_if_fail (saver->priv->used == FALSE);
+ saver->priv->used = TRUE;
+
+ /* CHECK:
+ * - sanity check a max len for the uri?
+ * report async (in an idle handler) or sync (bool ret)
+ * async is extra work here, sync is special casing in the caller
+ */
+
+ /* never keep backup of autosaves */
+ if ((saver->priv->flags & PLUMA_DOCUMENT_SAVE_PRESERVE_BACKUP) != 0)
+ saver->priv->keep_backup = FALSE;
+ else
+ saver->priv->keep_backup = pluma_prefs_manager_get_create_backup_copy ();
 
- g_return_if_fail (PLUMA_IS_DOCUMENT_SAVER (saver));
- g_return_if_fail (saver->uri != NULL && strlen (saver->uri) > 0);
+ saver->priv->old_mtime = *old_mtime;
+ saver->priv->gfile = g_file_new_for_uri (saver->priv->uri);
 
- g_return_if_fail (saver->used == FALSE);
- saver->used = TRUE;
+ /* saving start */
+ pluma_document_saver_saving (saver, FALSE, NULL);
+
+ g_timeout_add_full (G_PRIORITY_HIGH,
+ 0,
+ (GSourceFunc) save_remote_file_real,
+ saver,
+ NULL);
+}
+
+void
+pluma_document_saver_saving (PlumaDocumentSaver *saver,
+ gboolean completed,
+ GError *error)
+{
+ /* the object will be unrefed in the callback of the saving
+ * signal, so we need to prevent finalization.
+ */
+ if (completed)
+ {
+ g_object_ref (saver);
+ }
 
- // CHECK:
- // - sanity check a max len for the uri?
- // report async (in an idle handler) or sync (bool ret)
- // async is extra work here, sync is special casing in the caller
+ g_signal_emit (saver, signals[SAVING], 0, completed, error);
 
- /* never keep backup of autosaves */
- if ((saver->flags & PLUMA_DOCUMENT_SAVE_PRESERVE_BACKUP) != 0)
- saver->keep_backup = FALSE;
- else
- saver->keep_backup = pluma_prefs_manager_get_create_backup_copy ();
+ if (completed)
+ {
+ if (error == NULL)
+ pluma_debug_message (DEBUG_SAVER, "save completed");
+ else
+ pluma_debug_message (DEBUG_SAVER, "save failed");
 
- PLUMA_DOCUMENT_SAVER_GET_CLASS (saver)->save (saver, old_mtime);
+ g_object_unref (saver);
+ }
 }
 
 PlumaDocument *
 pluma_document_saver_get_document (PlumaDocumentSaver *saver)
 {
- g_return_val_if_fail (PLUMA_IS_DOCUMENT_SAVER (saver), NULL);
+ g_return_val_if_fail (PLUMA_IS_DOCUMENT_SAVER (saver), NULL);
 
- return saver->document;
+ return saver->priv->document;
 }
 
 const gchar *
 pluma_document_saver_get_uri (PlumaDocumentSaver *saver)
 {
- g_return_val_if_fail (PLUMA_IS_DOCUMENT_SAVER (saver), NULL);
+ g_return_val_if_fail (PLUMA_IS_DOCUMENT_SAVER (saver), NULL);
 
- return saver->uri;
+ return saver->priv->uri;
 }
 
 /* Returns 0 if file size is unknown */
 goffset
 pluma_document_saver_get_file_size (PlumaDocumentSaver *saver)
 {
- g_return_val_if_fail (PLUMA_IS_DOCUMENT_SAVER (saver), 0);
+ g_return_val_if_fail (PLUMA_IS_DOCUMENT_SAVER (saver), 0);
 
- return PLUMA_DOCUMENT_SAVER_GET_CLASS (saver)->get_file_size (saver);
+ return saver->priv->size;
 }
 
 goffset
 pluma_document_saver_get_bytes_written (PlumaDocumentSaver *saver)
 {
- g_return_val_if_fail (PLUMA_IS_DOCUMENT_SAVER (saver), 0);
+ g_return_val_if_fail (PLUMA_IS_DOCUMENT_SAVER (saver), 0);
 
- return PLUMA_DOCUMENT_SAVER_GET_CLASS (saver)->get_bytes_written (saver);
+ return saver->priv->bytes_written;
 }
 
 GFileInfo *
 pluma_document_saver_get_info (PlumaDocumentSaver *saver)
 {
- g_return_val_if_fail (PLUMA_IS_DOCUMENT_SAVER (saver), NULL);
+ g_return_val_if_fail (PLUMA_IS_DOCUMENT_SAVER (saver), NULL);
 
- return saver->info;
+ return saver->priv->info;
 }