[tracker/libtracker-common-cleanup: 8/11] libtracker-common: Removed tracker-miner-locale, only apps/userguides need it



commit 95a804bce3aee73afa9c292dab606a37ef0078de
Author: Martyn Russell <martyn lanedo com>
Date:   Fri Oct 10 23:04:52 2014 +0100

    libtracker-common: Removed tracker-miner-locale, only apps/userguides need it
    
    We actually do this directly in the miners ourselves now instead, the code is
    quite small and it is cleaner too now. We store a file per miner in case one
    isn't run for a period of time between locale updates.

 src/libtracker-common/Makefile.am                  |    6 +-
 src/libtracker-common/tracker-common.h             |    1 -
 src/libtracker-common/tracker-miner-locale.c       |  133 --------------------
 src/libtracker-common/tracker-miner-locale.h       |   30 -----
 src/libtracker-data/tracker-db-manager.c           |    8 +-
 src/miners/apps/tracker-miner-applications.c       |   96 ++++++++++++--
 src/miners/user-guides/tracker-miner-user-guides.c |   96 ++++++++++++--
 7 files changed, 171 insertions(+), 199 deletions(-)
---
diff --git a/src/libtracker-common/Makefile.am b/src/libtracker-common/Makefile.am
index b44a221..f7e0ddd 100644
--- a/src/libtracker-common/Makefile.am
+++ b/src/libtracker-common/Makefile.am
@@ -27,8 +27,7 @@ libtracker_common_la_SOURCES = \
        tracker-storage.c \
        tracker-type-utils.c \
        tracker-utils.c \
-       tracker-locale.c \
-       tracker-miner-locale.c
+       tracker-locale.c
 
 noinst_HEADERS = \
        tracker-dbus.h \
@@ -44,8 +43,7 @@ noinst_HEADERS = \
        tracker-storage.h \
        tracker-type-utils.h \
        tracker-utils.h \
-       tracker-locale.h \
-       tracker-miner-locale.h
+       tracker-locale.h
 
 if HAVE_TRACKER_FTS
 libtracker_common_la_SOURCES += tracker-language.c
diff --git a/src/libtracker-common/tracker-common.h b/src/libtracker-common/tracker-common.h
index 44f3292..dd3b5ca 100644
--- a/src/libtracker-common/tracker-common.h
+++ b/src/libtracker-common/tracker-common.h
@@ -41,7 +41,6 @@
 #include "tracker-type-utils.h"
 #include "tracker-utils.h"
 #include "tracker-locale.h"
-#include "tracker-miner-locale.h"
 #include "tracker-enum-types.h"
 
 #undef __LIBTRACKER_COMMON_INSIDE__
diff --git a/src/libtracker-data/tracker-db-manager.c b/src/libtracker-data/tracker-db-manager.c
index b682248..30d9b7b 100644
--- a/src/libtracker-data/tracker-db-manager.c
+++ b/src/libtracker-data/tracker-db-manager.c
@@ -33,10 +33,7 @@
 
 #include <glib/gstdio.h>
 
-#include <libtracker-common/tracker-date-time.h>
-#include <libtracker-common/tracker-file-utils.h>
-#include <libtracker-common/tracker-utils.h>
-#include <libtracker-common/tracker-locale.h>
+#include <libtracker-common/tracker-common.h>
 
 #if HAVE_TRACKER_FTS
 #include <libtracker-fts/tracker-fts.h>
@@ -681,6 +678,7 @@ tracker_db_manager_locale_changed (void)
 
        g_free (db_locale);
        g_free (current_locale);
+
        return changed;
 }
 
@@ -691,7 +689,7 @@ tracker_db_manager_set_current_locale (void)
 
        /* Get current collation locale */
        current_locale = tracker_locale_get (TRACKER_LOCALE_COLLATE);
-       g_message ("Changing db locale to: '%s'", current_locale);
+       g_message ("Saving DB locale as: '%s'", current_locale);
        db_set_locale (current_locale);
        g_free (current_locale);
 }
diff --git a/src/miners/apps/tracker-miner-applications.c b/src/miners/apps/tracker-miner-applications.c
index 9e092dd..13d65fa 100644
--- a/src/miners/apps/tracker-miner-applications.c
+++ b/src/miners/apps/tracker-miner-applications.c
@@ -23,6 +23,8 @@
 
 #include "tracker-miner-applications.h"
 
+#define LOCALE_FILENAME              "locale-for-miner-apps.txt"
+
 #define GROUP_DESKTOP_ENTRY          "Desktop Entry"
 
 #define APPLICATION_DATASOURCE_URN   "urn:nepomuk:datasource:84f20000-1241-11de-8c30-0800200c9a66"
@@ -170,10 +172,28 @@ miner_finished_cb (TrackerMinerFS *fs,
                    guint           total_files_ignored,
                    gpointer        user_data)
 {
-       /* Update locale file if necessary */
-       if (tracker_miner_locale_changed ()) {
-               tracker_miner_locale_set_current ();
+       /* Save locale, if it changes the variation in the desktop
+        * file languages needs to be re-indexed.
+        */
+       GError *error = NULL;
+       gchar *locale = tracker_locale_get (TRACKER_LOCALE_LANGUAGE);
+       gchar *locale_file = g_build_filename (g_get_user_cache_dir (), "tracker", LOCALE_FILENAME, NULL);
+
+       g_message ("Saving locale used to index applications");
+       g_message ("  Creating locale file '%s'", locale_file);
+
+       if (locale == NULL) {
+               locale = g_strdup ("");
+       }
+
+       if (!g_file_set_contents (locale_file, locale, -1, &error)) {
+               g_message ("  Could not set file contents, %s",
+                          error ? error->message : "no error given");
+               g_clear_error (&error);
        }
+
+       g_free (locale);
+       g_free (locale_file);
 }
 
 static gboolean
@@ -927,28 +947,78 @@ miner_applications_reset (TrackerMiner *miner)
        g_object_unref (sparql);
 }
 
-gboolean
-tracker_miner_applications_detect_locale_changed (TrackerMiner *miner)
+static gboolean
+detect_locale_changed (TrackerMiner *miner)
 {
+       gchar *locale_file;
+       gchar *previous_locale = NULL;
+       gchar *current_locale;
        gboolean changed;
 
-       changed = tracker_miner_locale_changed ();
+       locale_file = g_build_filename (g_get_user_cache_dir (), "tracker", LOCALE_FILENAME, NULL);
+
+       if (G_LIKELY (g_file_test (locale_file, G_FILE_TEST_EXISTS))) {
+               gchar *contents;
+
+               /* Check locale is correct */
+               if (G_LIKELY (g_file_get_contents (locale_file, &contents, NULL, NULL))) {
+                       if (contents &&
+                           contents[0] == '\0') {
+                               g_critical ("  Empty locale file found at '%s'", locale_file);
+                               g_free (contents);
+                       } else {
+                               /* Re-use contents */
+                               previous_locale = contents;
+                       }
+               } else {
+                       g_critical ("  Could not get content of file '%s'", locale_file);
+               }
+       } else {
+               g_message ("  Could not find locale file:'%s'", locale_file);
+       }
+
+       g_free (locale_file);
+
+       current_locale = tracker_locale_get (TRACKER_LOCALE_LANGUAGE);
+
+       /* Note that having both to NULL is actually valid, they would default
+        * to the unicode collation without locale-specific stuff. */
+       if (g_strcmp0 (previous_locale, current_locale) != 0) {
+               g_message ("Locale change detected from '%s' to '%s'...",
+                          previous_locale, current_locale);
+               changed = TRUE;
+       } else {
+               g_message ("Current and previous locales match: '%s'", previous_locale);
+               changed = FALSE;
+       }
+
+       g_free (current_locale);
+       g_free (previous_locale);
+
        if (changed) {
                g_message ("Locale change detected, so resetting miner to "
                           "remove all previously created items...");
                miner_applications_reset (miner);
        }
+
        return changed;
 }
 
 TrackerMiner *
 tracker_miner_applications_new (GError **error)
 {
-       return g_initable_new (TRACKER_TYPE_MINER_APPLICATIONS,
-                              NULL,
-                              error,
-                              "name", "Applications",
-                              "processing-pool-wait-limit", 10,
-                              "processing-pool-ready-limit", 100,
-                              NULL);
+       TrackerMiner *miner;
+
+       miner = g_initable_new (TRACKER_TYPE_MINER_APPLICATIONS,
+                               NULL,
+                               error,
+                               "name", "Applications",
+                               "processing-pool-wait-limit", 10,
+                               "processing-pool-ready-limit", 100,
+                               NULL);
+
+       /* If the locales changed, we need to reset things first */
+       detect_locale_changed (miner);
+
+       return miner;
 }
diff --git a/src/miners/user-guides/tracker-miner-user-guides.c 
b/src/miners/user-guides/tracker-miner-user-guides.c
index 8328dfa..2ceaeb0 100644
--- a/src/miners/user-guides/tracker-miner-user-guides.c
+++ b/src/miners/user-guides/tracker-miner-user-guides.c
@@ -27,6 +27,8 @@
 
 #include "tracker-miner-user-guides.h"
 
+#define LOCALE_FILENAME "locale-for-miner-user-guides.txt"
+
 // FIXME: get this value from tracker conf
 #define MAX_EXTRACT_SIZE 1024 * 1024 // 1 MiB
 #define MAX_TITLE_LENGTH 1000
@@ -222,10 +224,28 @@ miner_finished_cb (TrackerMinerFS *fs,
                    guint           total_files_ignored,
                    gpointer        user_data)
 {
-       /* Update locale file if necessary */
-       if (tracker_miner_locale_changed ()) {
-               tracker_miner_locale_set_current ();
+       /* Save locale, if it changes the variation in the desktop
+        * file languages needs to be re-indexed.
+        */
+       GError *error = NULL;
+       gchar *locale = tracker_locale_get (TRACKER_LOCALE_LANGUAGE);
+       gchar *locale_file = g_build_filename (g_get_user_cache_dir (), "tracker", LOCALE_FILENAME, NULL);
+
+       g_message ("Saving locale used to index applications");
+       g_message ("  Creating locale file '%s'", locale_file);
+
+       if (locale == NULL) {
+               locale = g_strdup ("");
+       }
+
+       if (!g_file_set_contents (locale_file, locale, -1, &error)) {
+               g_message ("  Could not set file contents, %s",
+                          error ? error->message : "no error given");
+               g_clear_error (&error);
        }
+
+       g_free (locale);
+       g_free (locale_file);
 }
 
 static gboolean
@@ -685,28 +705,78 @@ miner_userguides_reset (TrackerMiner *miner)
        g_object_unref (sparql);
 }
 
-gboolean
-tracker_miner_userguides_detect_locale_changed (TrackerMiner *miner)
+static gboolean
+detect_locale_changed (TrackerMiner *miner)
 {
+       gchar *locale_file;
+       gchar *previous_locale = NULL;
+       gchar *current_locale;
        gboolean changed;
 
-       changed = tracker_miner_locale_changed ();
+       locale_file = g_build_filename (g_get_user_cache_dir (), "tracker", LOCALE_FILENAME, NULL);
+
+       if (G_LIKELY (g_file_test (locale_file, G_FILE_TEST_EXISTS))) {
+               gchar *contents;
+
+               /* Check locale is correct */
+               if (G_LIKELY (g_file_get_contents (locale_file, &contents, NULL, NULL))) {
+                       if (contents &&
+                           contents[0] == '\0') {
+                               g_critical ("  Empty locale file found at '%s'", locale_file);
+                               g_free (contents);
+                       } else {
+                               /* Re-use contents */
+                               previous_locale = contents;
+                       }
+               } else {
+                       g_critical ("  Could not get content of file '%s'", locale_file);
+               }
+       } else {
+               g_message ("  Could not find locale file:'%s'", locale_file);
+       }
+
+       g_free (locale_file);
+
+       current_locale = tracker_locale_get (TRACKER_LOCALE_LANGUAGE);
+
+       /* Note that having both to NULL is actually valid, they would default
+        * to the unicode collation without locale-specific stuff. */
+       if (g_strcmp0 (previous_locale, current_locale) != 0) {
+               g_message ("Locale change detected from '%s' to '%s'...",
+                          previous_locale, current_locale);
+               changed = TRUE;
+       } else {
+               g_message ("Current and previous locales match: '%s'", previous_locale);
+               changed = FALSE;
+       }
+
+       g_free (current_locale);
+       g_free (previous_locale);
+
        if (changed) {
                g_message ("Locale change detected, so resetting miner to "
                           "remove all previously created items...");
                miner_userguides_reset (miner);
        }
+
        return changed;
 }
 
 TrackerMiner *
 tracker_miner_userguides_new (GError **error)
 {
-       return g_initable_new (TRACKER_TYPE_MINER_USERGUIDES,
-                              NULL,
-                              error,
-                              "name", "Userguides",
-                              "processing-pool-wait-limit", 10,
-                              "processing-pool-ready-limit", 100,
-                              NULL);
+       TrackerMiner *miner;
+
+       miner = g_initable_new (TRACKER_TYPE_MINER_USERGUIDES,
+                               NULL,
+                               error,
+                               "name", "Userguides",
+                               "processing-pool-wait-limit", 10,
+                               "processing-pool-ready-limit", 100,
+                               NULL);
+
+       /* If the locales changed, we need to reset things first */
+       detect_locale_changed (miner);
+
+       return miner;
 }


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