[file-roller] for CAB files give priority to 7za that supports them better

[Paolo Bacchilega <paobac src gnome org>]

commit 8a0e30e097e972c7a76a9e5b07763f4e9968dd48
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Wed Nov 28 15:59:42 2012 +0100

    for CAB files give priority to 7za that supports them better

 src/fr-archive-libarchive.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/src/fr-archive-libarchive.c b/src/fr-archive-libarchive.c
index dd6fbe7..a48128d 100644
--- a/src/fr-archive-libarchive.c
+++ b/src/fr-archive-libarchive.c
@@ -30,6 +30,7 @@
 #include <archive.h>
 #include <archive_entry.h>
 #include "file-data.h"
+#include "file-utils.h"
 #include "fr-error.h"
 #include "fr-archive-libarchive.h"
 #include "glib-utils.h"
@@ -104,6 +105,13 @@ fr_archive_libarchive_get_capabilities (FrArchive  *archive,
 		return capabilities;
 	}
 
+	/* give priority to 7za that supports CAB files better. */
+	if ((strcmp (mime_type, "application/vnd.ms-cab-compressed") == 0)
+	    && _g_program_is_available ("7za", check_command))
+	{
+		return capabilities;
+	}
+
 	capabilities |= FR_ARCHIVE_CAN_READ;
 
 	/* read-only formats */