[gnome-software/wip/rancell/apt] Fix changelogs being keyed by source package, not binary package

[Robert Ancell <rancell src gnome org>]

commit b03909566ed8ca247d9244c4f4f0c3c285ef0148
Author: Robert Ancell <robert ancell canonical com>
Date:   Thu Mar 17 11:29:14 2016 +1300

    Fix changelogs being keyed by source package, not binary package

 src/plugins/gs-plugin-apt.c |   43 +++++++++++--------------------------------
 1 files changed, 11 insertions(+), 32 deletions(-)
---
diff --git a/src/plugins/gs-plugin-apt.c b/src/plugins/gs-plugin-apt.c
index 6b4cc89..0ea47ed 100644
--- a/src/plugins/gs-plugin-apt.c
+++ b/src/plugins/gs-plugin-apt.c
@@ -30,7 +30,6 @@
 
 typedef struct {
        gchar *name;
-       gchar *source;
        gchar *installed_version;
        gchar *update_version;
        gint installed_size;
@@ -68,7 +67,6 @@ free_package_info (gpointer data)
 {
        PackageInfo *info = data;
        g_free (info->name);
-       g_free (info->source);
        g_free (info->installed_version);
        g_free (info->update_version);
        g_slice_free (PackageInfo, info);
@@ -319,10 +317,6 @@ field_cb (const gchar *name, gsize name_length, const gchar *value, gsize value_
                }
        } else if (strncmp (name, "Installed-Size", name_length) == 0) {
                data->current_info->installed_size = atoi (value);
-       } else if (strncmp (name, "Source", name_length) == 0) {
-               gchar *source = g_strndup (value, value_length);
-               g_free (data->current_info->source);
-               data->current_info->source = source;
        } else if (strncmp (name, "Version", name_length) == 0) {
                gchar *version = g_strndup (value, value_length);
                if (data->current_installed) {
@@ -380,23 +374,10 @@ done:
        return result;
 }
 
-static const gchar *
-get_source_name (GsPlugin *plugin, const gchar *binary_name)
-{
-       PackageInfo *info;
-
-       info = g_hash_table_lookup (plugin->priv->package_info, binary_name);
-       if (info != NULL && info->source != NULL) {
-               return info->source;
-       } else {
-               return binary_name;
-       }
-}
-
 static void
 get_changelog (GsPlugin *plugin, GsApp *app)
 {
-       const gchar *binary_source, *source, *current_version, *update_version;
+       const gchar *binary_source, *current_version, *update_version;
        g_autofree gchar *source_prefix = NULL, *uri = NULL, *changelog_prefix = NULL;
        g_autoptr(SoupMessage) msg = NULL;
        guint status_code;
@@ -411,35 +392,33 @@ get_changelog (GsPlugin *plugin, GsApp *app)
        if (binary_source == NULL || update_version == NULL)
                return;
 
-       source = get_source_name (plugin, binary_source);
-       if (g_str_has_prefix (source, "lib"))
-               source_prefix = g_strdup_printf ("lib%c", source[3]);
+       if (g_str_has_prefix (binary_source, "lib"))
+               source_prefix = g_strdup_printf ("lib%c", binary_source[3]);
        else
-               source_prefix = g_strdup_printf ("%c", source[0]);
-       uri = g_strdup_printf ("http://changelogs.ubuntu.com/changelogs/binary/%s/%s/%s/changelog";, 
source_prefix, source, update_version);
+               source_prefix = g_strdup_printf ("%c", binary_source[0]);
+       uri = g_strdup_printf ("http://changelogs.ubuntu.com/changelogs/binary/%s/%s/%s/changelog";, 
source_prefix, binary_source, update_version);
        msg = soup_message_new (SOUP_METHOD_GET, uri);
 
        status_code = soup_session_send_message (plugin->soup_session, msg);
        if (status_code != SOUP_STATUS_OK) {
-               g_warning ("Failed to get changelog for %s version %s from changelogs.ubuntu.com: %s", 
source, update_version, soup_status_get_phrase (status_code));
+               g_warning ("Failed to get changelog for %s version %s from changelogs.ubuntu.com: %s", 
binary_source, update_version, soup_status_get_phrase (status_code));
                return;
        }
 
        // Extract changelog entries newer than our current version
-       changelog_prefix = g_strdup_printf ("%s (", source);
        lines = g_strsplit (msg->response_body->data, "\n", -1);
        details = g_string_new ("");
        for (i = 0; lines[i] != NULL; i++) {
                gchar *line = lines[i];
-               int version_start, version_end;
+               const gchar *version_start, *version_end;
                g_autofree gchar *v = NULL;
 
                // First line is in the form "package (version) distribution(s); urgency=urgency"
-               if (!g_str_has_prefix (line, changelog_prefix))
+                version_start = strchr (line, '(');
+                version_end = strchr (line, ')');
+               if (line[0] == ' ' || version_start == NULL || version_end == NULL || version_end < 
version_start)
                        continue;
-               version_start = strlen (changelog_prefix);
-               for (version_end = version_start; line[version_end] != '\0' && line[version_end] != ')'; 
version_end++);
-               v = g_strdup_printf ("%.*s", version_end - version_start, line + version_start);
+               v = g_strdup_printf ("%.*s", (int) (version_end - version_start - 1), version_start + 1);
 
                // We're only interested in new versions
                if (!version_newer (current_version, v))