[file-roller] added support for lz4 compressed files

[Paolo Bacchilega <paobac src gnome org>]

commit 8c0c81894d77cf1dd268423ba921ae99ff178f4b
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Wed Aug 17 08:59:26 2016 +0200

    added support for lz4 compressed files
    
    [bug #770016]

 data/org.gnome.FileRoller.desktop.in.in |    2 +-
 src/fr-command-cfile.c                  |   34 +++++++++++++++++++++++++++---
 src/fr-init.c                           |    2 +
 3 files changed, 33 insertions(+), 5 deletions(-)
---
diff --git a/data/org.gnome.FileRoller.desktop.in.in b/data/org.gnome.FileRoller.desktop.in.in
index badc2d7..74577d5 100644
--- a/data/org.gnome.FileRoller.desktop.in.in
+++ b/data/org.gnome.FileRoller.desktop.in.in
@@ -10,7 +10,7 @@ Type=Application
 Icon=file-roller
 Categories=GTK;GNOME;Utility;Archiving;Compression;X-GNOME-Utilities;
 NotShowIn=KDE;
-MimeType=application/x-7z-compressed;application/x-7z-compressed-tar;application/x-ace;application/x-alz;application/x-ar;application/x-arj;application/x-bzip;application/x-bzip-compressed-tar;application/x-bzip1;application/x-bzip1-compressed-tar;application/x-cabinet;application/x-cbr;application/x-cbz;application/x-cd-image;application/x-compress;application/x-compressed-tar;application/x-cpio;application/x-deb;application/x-ear;application/x-ms-dos-executable;application/x-gtar;application/x-gzip;application/x-gzpostscript;application/x-java-archive;application/x-lha;application/x-lhz;application/x-lrzip;application/x-lrzip-compressed-tar;application/x-lzip;application/x-lzip-compressed-tar;application/x-lzma;application/x-lzma-compressed-tar;application/x-lzop;application/x-lzop-compressed-tar;application/x-ms-wim;application/x-rar;application/x-rar-compressed;application/x-rpm;application/x-rzip;application/x-rzip-compressed-tar;application/x-tar;application/x-tarz;app
 
lication/x-stuffit;application/x-war;application/x-xz;application/x-xz-compressed-tar;application/x-zip;application/x-zip-compressed;application/x-zoo;application/zip;application/x-archive;application/vnd.ms-cab-compressed;application/vnd.debian.binary-package;application/gzip;
+MimeType=application/x-7z-compressed;application/x-7z-compressed-tar;application/x-ace;application/x-alz;application/x-ar;application/x-arj;application/x-bzip;application/x-bzip-compressed-tar;application/x-bzip1;application/x-bzip1-compressed-tar;application/x-cabinet;application/x-cbr;application/x-cbz;application/x-cd-image;application/x-compress;application/x-compressed-tar;application/x-cpio;application/x-deb;application/x-ear;application/x-ms-dos-executable;application/x-gtar;application/x-gzip;application/x-gzpostscript;application/x-java-archive;application/x-lha;application/x-lhz;application/x-lrzip;application/x-lrzip-compressed-tar;application/x-lz4;application/x-lzip;application/x-lzip-compressed-tar;application/x-lzma;application/x-lzma-compressed-tar;application/x-lzop;application/x-lz4-compressed-tar;application/x-lzop-compressed-tar;application/x-ms-wim;application/x-rar;application/x-rar-compressed;application/x-rpm;application/x-rzip;application/x-rzip-comp
 
ressed-tar;application/x-tar;application/x-tarz;application/x-stuffit;application/x-war;application/x-xz;application/x-xz-compressed-tar;application/x-zip;application/x-zip-compressed;application/x-zoo;application/zip;application/x-archive;application/vnd.ms-cab-compressed;application/vnd.debian.binary-package;application/gzip;
 X-GNOME-DocPath=file-roller/file-roller.xml
 X-GNOME-Bugzilla-Bugzilla=GNOME
 X-GNOME-Bugzilla-Product=file-roller
diff --git a/src/fr-command-cfile.c b/src/fr-command-cfile.c
index 1fbc574..1f6cc1a 100644
--- a/src/fr-command-cfile.c
+++ b/src/fr-command-cfile.c
@@ -287,7 +287,18 @@ fr_command_cfile_add (FrCommand  *comm,
                fr_process_add_arg (comm->process, filename);
                fr_process_end_command (comm->process);
                compressed_filename = g_strconcat (filename, ".rz", NULL);
-       } else {
+       }
+       else if (_g_mime_type_matches (archive->mime_type, "application/x-lz4")) {
+               compressed_filename = g_strconcat (filename, ".lz4", NULL);
+               fr_process_begin_command (comm->process, "lz4");
+               fr_process_set_working_dir (comm->process, temp_dir);
+               fr_process_add_arg (comm->process, "-f");
+               fr_process_add_arg (comm->process, "-z");
+               fr_process_add_arg (comm->process, filename);
+               fr_process_add_arg (comm->process, compressed_filename);
+               fr_process_end_command (comm->process);
+       }
+       else {
                g_warning ("Unhandled mime type: '%s'", archive->mime_type);
                g_warn_if_reached ();
                g_free (temp_file);
@@ -361,6 +372,8 @@ fr_command_cfile_extract (FrCommand  *comm,
 
        /* uncompress the file */
 
+       uncompr_file = _g_path_remove_first_extension (temp_file);
+
        if (_g_mime_type_matches (archive->mime_type, "application/x-gzip")) {
                fr_process_begin_command (comm->process, "gzip");
                fr_process_add_arg (comm->process, "-f");
@@ -425,11 +438,18 @@ fr_command_cfile_extract (FrCommand  *comm,
                fr_process_add_arg (comm->process, temp_file);
                fr_process_end_command (comm->process);
        }
+       else if (_g_mime_type_matches (archive->mime_type, "application/x-lz4")) {
+               fr_process_begin_command (comm->process, "lz4");
+               fr_process_set_working_dir (comm->process, temp_dir);
+               fr_process_add_arg (comm->process, "-f");
+               fr_process_add_arg (comm->process, "-d");
+               fr_process_add_arg (comm->process, temp_file);
+               fr_process_add_arg (comm->process, uncompr_file);
+               fr_process_end_command (comm->process);
+       }
 
        /* copy uncompress file to the dest dir */
 
-       uncompr_file = _g_path_remove_first_extension (temp_file);
-
        compr_file = get_uncompressed_name_from_archive (comm, comm->filename);
        if (compr_file == NULL)
                compr_file = _g_path_remove_first_extension (_g_path_get_basename (comm->filename));
@@ -463,6 +483,7 @@ fr_command_cfile_extract (FrCommand  *comm,
 const char *cfile_mime_type[] = { "application/x-gzip",
                                  "application/x-bzip",
                                  "application/x-compress",
+                                 "application/x-lz4",
                                  "application/x-lzip",
                                  "application/x-lzma",
                                  "application/x-lzop",
@@ -521,7 +542,10 @@ fr_command_cfile_get_capabilities (FrArchive  *archive,
                if (_g_program_is_available ("rzip", check_command))
                        capabilities |= FR_ARCHIVE_CAN_READ_WRITE;
        }
-
+       else if (_g_mime_type_matches (mime_type, "application/x-lz4")) {
+               if (_g_program_is_available ("lz4", check_command))
+                       capabilities |= FR_ARCHIVE_CAN_READ_WRITE;
+       }
        return capabilities;
 }
 
@@ -546,6 +570,8 @@ fr_command_cfile_get_packages (FrArchive  *archive,
                return PACKAGES ("lzop");
        else if (_g_mime_type_matches (mime_type, "application/x-rzip"))
                return PACKAGES ("rzip");
+       else if (_g_mime_type_matches (mime_type, "application/x-lz4"))
+               return PACKAGES ("lz4");
 
        return NULL;
 }
diff --git a/src/fr-init.c b/src/fr-init.c
index e75f6d9..356fa1c 100644
--- a/src/fr-init.c
+++ b/src/fr-init.c
@@ -87,6 +87,7 @@ FrMimeTypeDescription mime_type_desc[] = {
        { "application/x-lha",                  ".lzh",      0 },
        { "application/x-lrzip",                ".lrz",      0 },
        { "application/x-lrzip-compressed-tar", ".tar.lrz",  0 },
+       { "application/x-lz4",                  ".lz4",      0 },
        { "application/x-lzip",                 ".lz",       0 },
        { "application/x-lzip-compressed-tar",  ".tar.lz",   0 },
        { "application/x-lzma",                 ".lzma",     0 },
@@ -134,6 +135,7 @@ FrExtensionType file_ext_type[] = {
        { ".lrz", "application/x-lrzip" },
        { ".lzh", "application/x-lha" },
        { ".lz", "application/x-lzip" },
+       { ".lz4", "application/x-lz4" },
        { ".lzma", "application/x-lzma" },
        { ".lzo", "application/x-lzop" },
        { ".rar", "application/x-rar" },