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Add GZIP header processing to GZlibCompressor/GZlibDecompressor

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Add GZlibCompressor:file-info property. If it contains a non-NULL
GFileInfo, and the compressor is in GZIP mode, the filename and
modification time from the file info are written to the GZIP header
in the output data.

Add GZlibDeompressor:file-info property. If the decompressor is in GZIP
mode, and the GZIP data contains a GZIP header, the filename and
modification time are read from it, stored in a GFileInfo, and the
file-info property is notified.

Bug #617691.
This commit is contained in:
Christian Persch
2010-05-13 19:57:41 +02:00
parent b196cd7447
commit cae86073ea
7 changed files with 294 additions and 11 deletions
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38
gio/tests/filter-cat.c
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@@ -49,6 +49,23 @@ static GOptionEntry entries[] = {
{NULL}
};
static void
decompressor_file_info_notify_cb (GZlibDecompressor *decompressor,
GParamSpec *pspec,
gpointer data)
{
GFileInfo *file_info;
const gchar *filename;
file_info = g_zlib_decompressor_get_file_info (decompressor);
if (file_info == NULL)
return;
filename = g_file_info_get_name (file_info);
if (filename)
g_printerr ("Decompressor filename: %s\n", filename);
}
static void
cat (GFile * file)
{
@@ -79,6 +96,7 @@ cat (GFile * file)
conv = (GConverter *)g_zlib_decompressor_new (gzip?G_ZLIB_COMPRESSOR_FORMAT_GZIP:G_ZLIB_COMPRESSOR_FORMAT_ZLIB);
old = in;
in = (GInputStream *) g_converter_input_stream_new (in, conv);
g_signal_connect (conv, "notify::file-info", G_CALLBACK (decompressor_file_info_notify_cb), NULL);
g_object_unref (conv);
g_object_unref (old);
}
@@ -108,11 +126,29 @@ cat (GFile * file)
if (compress)
{
GInputStream *old;
conv = (GConverter *)g_zlib_compressor_new (gzip?G_ZLIB_COMPRESSOR_FORMAT_GZIP:G_ZLIB_COMPRESSOR_FORMAT_ZLIB, -1);
GFileInfo *in_file_info;
in_file_info = g_file_query_info (file,
G_FILE_ATTRIBUTE_STANDARD_NAME ","
G_FILE_ATTRIBUTE_TIME_MODIFIED,
G_FILE_QUERY_INFO_NONE,
NULL,
&error);
if (in_file_info == NULL)
{
g_printerr ("%s: %s: error reading file info: %s\n",
g_get_prgname (), g_file_get_uri (file), error->message);
g_error_free (error);
return;
}
conv = (GConverter *)g_zlib_compressor_new(gzip?G_ZLIB_COMPRESSOR_FORMAT_GZIP:G_ZLIB_COMPRESSOR_FORMAT_ZLIB, -1);
g_zlib_compressor_set_file_info (G_ZLIB_COMPRESSOR (conv), in_file_info);
old = in;
in = (GInputStream *) g_converter_input_stream_new (in, conv);
g_object_unref (conv);
g_object_unref (old);
g_object_unref (in_file_info);
}
while (1)