Initial ruby bindings

15 files changed, 2123 insertions, 0 deletions

diff --git a/bindings/ruby/database.c b/bindings/ruby/database.c
new file mode 100644
index 00000000..44ee6817
--- /dev/null
+++ b/bindings/ruby/database.c
@@ -0,0 +1,321 @@
+/* The Ruby interface to the notmuch mail library
+ *
+ * Copyright © 2010 Ali Polatel
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Ali Polatel <alip@exherbo.org>
+ */
+
+#include "defs.h"
+
+/*
+ * call-seq: Notmuch::Database.new(path, [{:create => false, :mode => notmuch::MODE_READ_ONLY}]) => DB
+ *
+ * Create or open a notmuch database using the given path.
+ * If :create is +true+, create the database instead of opening.
+ * The argument :mode specifies the open mode of the database.
+ */
+VALUE
+notmuch_rb_database_new(int argc, VALUE *argv, VALUE klass)
+{
+    const char *path;
+    int create, mode;
+    notmuch_rb_database_t *db;
+    VALUE modev, dbv;
+
+#if !defined(RSTRING_PTR)
+#define RSTRING_PTR(v) (RSTRING((v))->ptr)
+#endif /* !defined(RSTRING_PTR) */
+
+    /* Check arguments */
+    if (argc < 1 || argc > 2)
+        rb_raise(rb_eTypeError, "Wrong number of arguments");
+
+    SafeStringValue(argv[0]);
+    path = RSTRING_PTR(argv[0]);
+
+    if (argc == 2) {
+        Check_Type(argv[1], T_HASH);
+        create = RTEST(rb_hash_aref(argv[1], ID2SYM(ID_db_create)));
+        modev = rb_hash_aref(argv[1], ID2SYM(ID_db_mode));
+        if (NIL_P(modev))
+            mode = NOTMUCH_DATABASE_MODE_READ_ONLY;
+        else if (!FIXNUM_P(modev))
+            rb_raise(rb_eTypeError, ":mode isn't a Fixnum");
+        else {
+            mode = FIX2INT(modev);
+            switch (mode) {
+            case NOTMUCH_DATABASE_MODE_READ_ONLY:
+            case NOTMUCH_DATABASE_MODE_READ_WRITE:
+                break;
+            default:
+                rb_raise(rb_eTypeError, "Invalid mode");
+            }
+        }
+    }
+    else {
+        create = 0;
+        mode = NOTMUCH_DATABASE_MODE_READ_ONLY;
+    }
+
+    dbv = Data_Make_Struct(klass, notmuch_rb_database_t, NULL, notmuch_rb_database_free, db);
+    db->nm_db = create ? notmuch_database_create(path) : notmuch_database_open(path, mode);
+    if (!db->nm_db)
+        rb_raise(notmuch_rb_eDatabaseError, "failed to open database");
+
+    return dbv;
+}
+
+/*
+ * call-seq: DB.close => nil
+ *
+ * Close the notmuch database.
+ */
+VALUE
+notmuch_rb_database_close(VALUE self)
+{
+    notmuch_rb_database_t *db;
+
+    Data_Get_Struct(self, notmuch_rb_database_t, db);
+    if (db->nm_db) {
+        notmuch_database_close(db->nm_db);
+        db->nm_db = NULL;
+    }
+
+    return Qnil;
+}
+
+/*
+ * call-seq: DB.path => String
+ *
+ * Return the path of the database
+ */
+VALUE
+notmuch_rb_database_path(VALUE self)
+{
+    notmuch_rb_database_t *db;
+
+    Data_Get_Struct(self, notmuch_rb_database_t, db);
+    if (!db->nm_db)
+        rb_raise(rb_eRuntimeError, "Database closed");
+
+    return rb_str_new2(notmuch_database_get_path(db->nm_db));
+}
+
+/*
+ * call-seq: DB.version => Fixnum
+ *
+ * Return the version of the database
+ */
+VALUE
+notmuch_rb_database_version(VALUE self)
+{
+    notmuch_rb_database_t *db;
+
+    Data_Get_Struct(self, notmuch_rb_database_t, db);
+    if (!db->nm_db)
+        rb_raise(rb_eRuntimeError, "Database closed");
+
+    return INT2FIX(notmuch_database_get_version(db->nm_db));
+}
+
+/*
+ * call-seq: DB.needs_upgrade? => true or false
+ *
+ * Return the +true+ if the database needs upgrading, +false+ otherwise
+ */
+VALUE
+notmuch_rb_database_needs_upgrade(VALUE self)
+{
+    notmuch_rb_database_t *db;
+
+    Data_Get_Struct(self, notmuch_rb_database_t, db);
+    if (!db->nm_db)
+        rb_raise(rb_eRuntimeError, "Database closed");
+
+    return notmuch_database_needs_upgrade(db->nm_db) ? Qtrue : Qfalse;
+}
+
+static void
+notmuch_rb_upgrade_notify(void *closure, double progress)
+{
+    VALUE *block = (VALUE *)closure;
+    rb_funcall(*block, ID_call, 1, rb_float_new(progress));
+}
+
+/*
+ * call-seq: DB.upgrade [{|progress| block }] => nil
+ *
+ * Upgrade the database.
+ *
+ * If a block is given the block is called with a progress indicator as a
+ * floating point value in the range of [0.0..1.0].
+ */
+VALUE
+notmuch_rb_database_upgrade(VALUE self)
+{
+    notmuch_status_t ret;
+    void (*pnotify) (void *closure, double progress);
+    notmuch_rb_database_t *db;
+    VALUE block;
+
+    Data_Get_Struct(self, notmuch_rb_database_t, db);
+    if (!db->nm_db)
+        rb_raise(rb_eRuntimeError, "Database closed");
+
+    if (rb_block_given_p()) {
+        pnotify = notmuch_rb_upgrade_notify;
+        block = rb_block_proc();
+    }
+    else
+        pnotify = NULL;
+
+    ret = notmuch_database_upgrade(db->nm_db, pnotify, pnotify ? &block : NULL);
+    notmuch_rb_status_raise(ret);
+    return Qtrue;
+}
+
+/*
+ * call-seq: DB.get_directory(path) => DIR
+ *
+ * Retrieve a directory object from the database for 'path'
+ */
+VALUE
+notmuch_rb_database_get_directory(VALUE self, VALUE pathv)
+{
+    const char *path;
+    notmuch_rb_directory_t *dir;
+    notmuch_rb_database_t *db;
+    VALUE dirv;
+
+    Data_Get_Struct(self, notmuch_rb_database_t, db);
+    if (!db->nm_db)
+        rb_raise(rb_eRuntimeError, "Database closed");
+
+#if !defined(RSTRING_PTR)
+#define RSTRING_PTR(v) (RSTRING((v))->ptr)
+#endif /* !defined(RSTRING_PTR) */
+
+    SafeStringValue(pathv);
+    path = RSTRING_PTR(pathv);
+
+    dirv = Data_Make_Struct(notmuch_rb_cDirectory, notmuch_rb_directory_t,
+            notmuch_rb_directory_mark, notmuch_rb_directory_free, dir);
+    dir->nm_dir = notmuch_database_get_directory(db->nm_db, path);
+    dir->db = self;
+    if (!dir->nm_dir)
+        rb_raise(notmuch_rb_eXapianError, "Xapian exception");
+
+    return dirv;
+}
+
+/*
+ * call-seq: DB.add_message(path) => MESSAGE, isdup
+ *
+ * Add a message to the database and return it
+ * +isdup+ is a boolean that specifies whether the added message was a
+ * duplicate.
+ */
+VALUE
+notmuch_rb_database_add_message(VALUE self, VALUE pathv)
+{
+    const char *path;
+    notmuch_status_t ret;
+    notmuch_rb_message_t *message;
+    notmuch_rb_database_t *db;
+    VALUE messagev;
+
+    Data_Get_Struct(self, notmuch_rb_database_t, db);
+    if (!db->nm_db)
+        rb_raise(rb_eRuntimeError, "Database closed");
+
+#if !defined(RSTRING_PTR)
+#define RSTRING_PTR(v) (RSTRING((v))->ptr)
+#endif /* !defined(RSTRING_PTR) */
+
+    SafeStringValue(pathv);
+    path = RSTRING_PTR(pathv);
+
+    messagev = Data_Make_Struct(notmuch_rb_cMessage, notmuch_rb_message_t,
+            notmuch_rb_message_mark, notmuch_rb_message_free, message);
+    ret = notmuch_database_add_message(db->nm_db, path, &message->nm_message);
+    message->parent = self;
+    notmuch_rb_status_raise(ret);
+    return rb_assoc_new(messagev, (ret == NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID) ? Qtrue : Qfalse);
+}
+
+/*
+ * call-seq: DB.remove_message(path) => isdup
+ *
+ * Remove a message from the database.
+ * +isdup+ is a boolean that specifies whether the removed message was a
+ * duplicate.
+ */
+VALUE
+notmuch_rb_database_remove_message(VALUE self, VALUE pathv)
+{
+    const char *path;
+    notmuch_status_t ret;
+    notmuch_rb_database_t *db;
+
+    Data_Get_Struct(self, notmuch_rb_database_t, db);
+    if (!db->nm_db)
+        rb_raise(rb_eRuntimeError, "Database closed");
+
+#if !defined(RSTRING_PTR)
+#define RSTRING_PTR(v) (RSTRING((v))->ptr)
+#endif /* !defined(RSTRING_PTR) */
+
+    SafeStringValue(pathv);
+    path = RSTRING_PTR(pathv);
+
+    ret = notmuch_database_remove_message(db->nm_db, path);
+    notmuch_rb_status_raise(ret);
+    return (ret == NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID) ? Qtrue : Qfalse;
+}
+
+/*
+ * call-seq: DB.query(query) => QUERY
+ *
+ * Retrieve a query object for the query string 'query'
+ */
+VALUE
+notmuch_rb_database_query_create(VALUE self, VALUE qstrv)
+{
+    const char *qstr;
+    notmuch_rb_query_t *query;
+    notmuch_rb_database_t *db;
+    VALUE queryv;
+
+    Data_Get_Struct(self, notmuch_rb_database_t, db);
+    if (!db->nm_db)
+        rb_raise(rb_eRuntimeError, "Database closed");
+
+#if !defined(RSTRING_PTR)
+#define RSTRING_PTR(v) (RSTRING((v))->ptr)
+#endif /* !defined(RSTRING_PTR) */
+
+    SafeStringValue(qstrv);
+    qstr = RSTRING_PTR(qstrv);
+
+    queryv = Data_Make_Struct(notmuch_rb_cQuery, notmuch_rb_query_t,
+            notmuch_rb_query_mark, notmuch_rb_query_free, query);
+    query->nm_query = notmuch_query_create(db->nm_db, qstr);
+    query->db = self;
+    if (!query->nm_query)
+        rb_raise(notmuch_rb_eMemoryError, "out of memory");
+
+    return queryv;
+}
diff --git a/bindings/ruby/defs.h b/bindings/ruby/defs.h
new file mode 100644
index 00000000..1973d26e
--- /dev/null
+++ b/bindings/ruby/defs.h
@@ -0,0 +1,300 @@
+/* The Ruby interface to the notmuch mail library
+ *
+ * Copyright © 2010 Ali Polatel
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Ali Polatel <alip@exherbo.org>
+ */
+
+#ifndef DEFS_H
+#define DEFS_H
+
+#include <notmuch.h>
+#include <ruby.h>
+
+VALUE notmuch_rb_cDatabase;
+VALUE notmuch_rb_cDirectory;
+VALUE notmuch_rb_cFileNames;
+VALUE notmuch_rb_cQuery;
+VALUE notmuch_rb_cThreads;
+VALUE notmuch_rb_cThread;
+VALUE notmuch_rb_cMessages;
+VALUE notmuch_rb_cMessage;
+VALUE notmuch_rb_cTags;
+
+VALUE notmuch_rb_eBaseError;
+VALUE notmuch_rb_eDatabaseError;
+VALUE notmuch_rb_eMemoryError;
+VALUE notmuch_rb_eReadOnlyError;
+VALUE notmuch_rb_eXapianError;
+VALUE notmuch_rb_eFileError;
+VALUE notmuch_rb_eFileNotEmailError;
+VALUE notmuch_rb_eNullPointerError;
+VALUE notmuch_rb_eTagTooLongError;
+VALUE notmuch_rb_eUnbalancedFreezeThawError;
+
+ID ID_call;
+ID ID_db_create;
+ID ID_db_mode;
+
+typedef struct {
+    notmuch_database_t *nm_db;
+} notmuch_rb_database_t;
+
+typedef struct {
+    notmuch_directory_t *nm_dir;
+    VALUE db;
+} notmuch_rb_directory_t;
+
+typedef struct {
+    notmuch_filenames_t *nm_flist;
+    VALUE dir;
+} notmuch_rb_filenames_t;
+
+typedef struct {
+    notmuch_query_t *nm_query;
+    VALUE db;
+} notmuch_rb_query_t;
+
+typedef struct {
+    notmuch_threads_t *nm_threads;
+    VALUE query;
+} notmuch_rb_threads_t;
+
+typedef struct {
+    notmuch_messages_t *nm_messages;
+    VALUE parent;
+} notmuch_rb_messages_t;
+
+typedef struct {
+    notmuch_thread_t *nm_thread;
+    VALUE threads;
+} notmuch_rb_thread_t;
+
+typedef struct {
+    notmuch_message_t *nm_message;
+    VALUE parent;
+} notmuch_rb_message_t;
+
+typedef struct {
+    notmuch_tags_t *nm_tags;
+    VALUE parent;
+} notmuch_rb_tags_t;
+
+/* status.c */
+void
+notmuch_rb_status_raise(notmuch_status_t status);
+
+/* gc.c */
+void
+notmuch_rb_database_free(notmuch_rb_database_t *db);
+
+void
+notmuch_rb_directory_mark(notmuch_rb_directory_t *dir);
+
+void
+notmuch_rb_directory_free(notmuch_rb_directory_t *dir);
+
+void
+notmuch_rb_filenames_mark(notmuch_rb_filenames_t *flist);
+
+void
+notmuch_rb_filenames_free(notmuch_rb_filenames_t *flist);
+
+void
+notmuch_rb_query_mark(notmuch_rb_query_t *query);
+
+void
+notmuch_rb_query_free(notmuch_rb_query_t *query);
+
+void
+notmuch_rb_threads_mark(notmuch_rb_threads_t *threads);
+
+void
+notmuch_rb_threads_free(notmuch_rb_threads_t *threads);
+
+void
+notmuch_rb_messages_mark(notmuch_rb_messages_t *messages);
+
+void
+notmuch_rb_messages_free(notmuch_rb_messages_t *messages);
+
+void
+notmuch_rb_thread_mark(notmuch_rb_thread_t *thread);
+
+void
+notmuch_rb_thread_free(notmuch_rb_thread_t *thread);
+
+void
+notmuch_rb_message_mark(notmuch_rb_message_t *message);
+
+void
+notmuch_rb_message_free(notmuch_rb_message_t *message);
+
+void
+notmuch_rb_tags_mark(notmuch_rb_tags_t *tags);
+
+void
+notmuch_rb_tags_free(notmuch_rb_tags_t *tags);
+
+/* database.c */
+VALUE
+notmuch_rb_database_new(int argc, VALUE *argv, VALUE klass);
+
+VALUE
+notmuch_rb_database_close(VALUE self);
+
+VALUE
+notmuch_rb_database_path(VALUE self);
+
+VALUE
+notmuch_rb_database_version(VALUE self);
+
+VALUE
+notmuch_rb_database_needs_upgrade(VALUE self);
+
+VALUE
+notmuch_rb_database_upgrade(VALUE self);
+
+VALUE
+notmuch_rb_database_get_directory(VALUE self, VALUE pathv);
+
+VALUE
+notmuch_rb_database_add_message(VALUE self, VALUE pathv);
+
+VALUE
+notmuch_rb_database_remove_message(VALUE self, VALUE pathv);
+
+VALUE
+notmuch_rb_database_query_create(VALUE self, VALUE qstrv);
+
+/* directory.c */
+VALUE
+notmuch_rb_directory_get_mtime(VALUE self);
+
+VALUE
+notmuch_rb_directory_set_mtime(VALUE self, VALUE mtimev);
+
+VALUE
+notmuch_rb_directory_get_child_files(VALUE self);
+
+VALUE
+notmuch_rb_directory_get_child_directories(VALUE self);
+
+/* filenames.c */
+VALUE
+notmuch_rb_filenames_each(VALUE self);
+
+/* query.c */
+VALUE
+notmuch_rb_query_set_sort(VALUE self, VALUE sortv);
+
+VALUE
+notmuch_rb_query_search_threads(VALUE self);
+
+VALUE
+notmuch_rb_query_search_messages(VALUE self);
+
+/* threads.c */
+VALUE
+notmuch_rb_threads_each(VALUE self);
+
+/* messages.c */
+VALUE
+notmuch_rb_messages_each(VALUE self);
+
+VALUE
+notmuch_rb_messages_collect_tags(VALUE self);
+
+/* thread.c */
+VALUE
+notmuch_rb_thread_get_thread_id(VALUE self);
+
+VALUE
+notmuch_rb_thread_get_total_messages(VALUE self);
+
+VALUE
+notmuch_rb_thread_get_toplevel_messages(VALUE self);
+
+VALUE
+notmuch_rb_thread_get_matched_messages(VALUE self);
+
+VALUE
+notmuch_rb_thread_get_authors(VALUE self);
+
+VALUE
+notmuch_rb_thread_get_subject(VALUE self);
+
+VALUE
+notmuch_rb_thread_get_oldest_date(VALUE self);
+
+VALUE
+notmuch_rb_thread_get_newest_date(VALUE self);
+
+VALUE
+notmuch_rb_thread_get_tags(VALUE self);
+
+/* message.c */
+VALUE
+notmuch_rb_message_get_message_id(VALUE self);
+
+VALUE
+notmuch_rb_message_get_thread_id(VALUE self);
+
+VALUE
+notmuch_rb_message_get_replies(VALUE self);
+
+VALUE
+notmuch_rb_message_get_filename(VALUE self);
+
+VALUE
+notmuch_rb_message_get_flag(VALUE self, VALUE flagv);
+
+VALUE
+notmuch_rb_message_set_flag(VALUE self, VALUE flagv, VALUE valuev);
+
+VALUE
+notmuch_rb_message_get_date(VALUE self);
+
+VALUE
+notmuch_rb_message_get_header(VALUE self, VALUE headerv);
+
+VALUE
+notmuch_rb_message_get_tags(VALUE self);
+
+VALUE
+notmuch_rb_message_add_tag(VALUE self, VALUE tagv);
+
+VALUE
+notmuch_rb_message_remove_tag(VALUE self, VALUE tagv);
+
+VALUE
+notmuch_rb_message_remove_all_tags(VALUE self);
+
+VALUE
+notmuch_rb_message_freeze(VALUE self);
+
+VALUE
+notmuch_rb_message_thaw(VALUE self);
+
+/* tags.c */
+VALUE
+notmuch_rb_tags_each(VALUE self);
+
+/* init.c */
+void
+Init_notmuch(void);
+
+#endif
diff --git a/bindings/ruby/directory.c b/bindings/ruby/directory.c
new file mode 100644
index 00000000..46fe11cf
--- /dev/null
+++ b/bindings/ruby/directory.c
@@ -0,0 +1,104 @@
+/* The Ruby interface to the notmuch mail library
+ *
+ * Copyright © 2010 Ali Polatel
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Ali Polatel <alip@exherbo.org>
+ */
+
+#include "defs.h"
+
+/*
+ * call-seq: DIR.mtime => fixnum
+ *
+ * Returns the mtime of the directory or +0+ if no mtime has been previously
+ * stored.
+ */
+VALUE
+notmuch_rb_directory_get_mtime(VALUE self)
+{
+    notmuch_rb_directory_t *dir;
+
+    Data_Get_Struct(self, notmuch_rb_directory_t, dir);
+
+    return UINT2NUM(notmuch_directory_get_mtime(dir->nm_dir));
+}
+
+/*
+ * call-seq: DIR.mtime=(fixnum) => nil
+ *
+ * Store an mtime within the database for the directory object.
+ */
+VALUE
+notmuch_rb_directory_set_mtime(VALUE self, VALUE mtimev)
+{
+    notmuch_status_t ret;
+    notmuch_rb_directory_t *dir;
+
+    Data_Get_Struct(self, notmuch_rb_directory_t, dir);
+
+    if (!FIXNUM_P(mtimev))
+        rb_raise(rb_eTypeError, "First argument not a fixnum");
+
+    ret = notmuch_directory_set_mtime(dir->nm_dir, FIX2UINT(mtimev));
+    notmuch_rb_status_raise(ret);
+    return Qtrue;
+}
+
+/*
+ * call-seq: DIR.child_files => FILENAMES
+ *
+ * Return a Notmuch::FileNames object, which is an +Enumerable+ listing all the
+ * filenames of messages in the database within the given directory.
+ */
+VALUE
+notmuch_rb_directory_get_child_files(VALUE self)
+{
+    notmuch_rb_directory_t *dir;
+    notmuch_rb_filenames_t *flist;
+    VALUE flistv;
+
+    Data_Get_Struct(self, notmuch_rb_directory_t, dir);
+
+    flistv = Data_Make_Struct(notmuch_rb_cFileNames, notmuch_rb_filenames_t,
+            notmuch_rb_filenames_mark, notmuch_rb_filenames_free, flist);
+    flist->dir = self;
+    flist->nm_flist = notmuch_directory_get_child_files(dir->nm_dir);
+
+    return flistv;
+}
+
+/*
+ * call-seq: DIR.child_directories => FILENAMES
+ *
+ * Return a Notmuch::FileNames object, which is an +Enumerable+ listing all the
+ * directories in the database within the given directory.
+ */
+VALUE
+notmuch_rb_directory_get_child_directories(VALUE self)
+{
+    notmuch_rb_directory_t *dir;
+    notmuch_rb_filenames_t *flist;
+    VALUE flistv;
+
+    Data_Get_Struct(self, notmuch_rb_directory_t, dir);
+
+    flistv = Data_Make_Struct(notmuch_rb_cFileNames, notmuch_rb_filenames_t,
+            notmuch_rb_filenames_mark, notmuch_rb_filenames_free, flist);
+    flist->dir = self;
+    flist->nm_flist = notmuch_directory_get_child_directories(dir->nm_dir);
+
+    return flistv;
+}
diff --git a/bindings/ruby/extconf.rb b/bindings/ruby/extconf.rb
new file mode 100644
index 00000000..a9d9d42b
--- /dev/null
+++ b/bindings/ruby/extconf.rb
@@ -0,0 +1,15 @@
+#!/usr/bin/env ruby
+# coding: utf-8
+# vim: set sw=2 sts=2 et nowrap fenc=utf-8 :
+# Copyright 2010 Ali Polatel <alip@exherbo.org>
+# Distributed under the terms of the GNU General Public License v3
+
+require 'mkmf'
+
+# Notmuch Library
+find_header('notmuch.h', '../../lib')
+find_library('notmuch', 'notmuch_database_create', '../../lib')
+
+# Create Makefile
+dir_config('notmuch')
+create_makefile('notmuch')
diff --git a/bindings/ruby/filenames.c b/bindings/ruby/filenames.c
new file mode 100644
index 00000000..44a16522
--- /dev/null
+++ b/bindings/ruby/filenames.c
@@ -0,0 +1,43 @@
+/* The Ruby interface to the notmuch mail library
+ *
+ * Copyright © 2010 Ali Polatel
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Ali Polatel <alip@exherbo.org>
+ */
+
+#include "defs.h"
+
+/*
+ * call-seq: FILENAMES.each {|item| block } => FILENAMES
+ *
+ * Calls +block+ once for each element in +self+, passing that element as a
+ * parameter.
+ */
+VALUE
+notmuch_rb_filenames_each(VALUE self)
+{
+    notmuch_rb_filenames_t *flist;
+
+    Data_Get_Struct(self, notmuch_rb_filenames_t, flist);
+    if (!flist->nm_flist)
+        return self;
+
+    for (; notmuch_filenames_valid(flist->nm_flist);
+            notmuch_filenames_move_to_next(flist->nm_flist))
+        rb_yield(rb_str_new2(notmuch_filenames_get(flist->nm_flist)));
+
+    return self;
+}
diff --git a/bindings/ruby/gc.c b/bindings/ruby/gc.c
new file mode 100644
index 00000000..3b515905
--- /dev/null
+++ b/bindings/ruby/gc.c
@@ -0,0 +1,268 @@
+/* The Ruby interface to the notmuch mail library
+ *
+ * Copyright © 2010 Ali Polatel
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Ali Polatel <alip@exherbo.org>
+ */
+
+#include "defs.h"
+
+#include <stdlib.h>
+
+static notmuch_rb_database_t *
+_notmuch_rb_messages_db(notmuch_rb_messages_t *messages);
+
+static notmuch_rb_database_t *
+_notmuch_rb_message_db(notmuch_rb_message_t *message)
+{
+    notmuch_rb_messages_t *messages;
+    notmuch_rb_database_t *db;
+
+    if (rb_obj_is_instance_of(message->parent, notmuch_rb_cDatabase)) {
+        Data_Get_Struct(message->parent, notmuch_rb_database_t, db);
+    }
+    else if (rb_obj_is_instance_of(message->parent, notmuch_rb_cMessages)) {
+        Data_Get_Struct(message->parent, notmuch_rb_messages_t, messages);
+        db = _notmuch_rb_messages_db(messages);
+    }
+    else
+        rb_bug("message's parent is neither database nor messages");
+
+    return db;
+}
+
+static notmuch_rb_database_t *
+_notmuch_rb_messages_db(notmuch_rb_messages_t *messages)
+{
+    notmuch_rb_query_t *query;
+    notmuch_rb_thread_t *thread;
+    notmuch_rb_message_t *message;
+    notmuch_rb_threads_t *threads;
+    notmuch_rb_database_t *db;
+
+    if (rb_obj_is_instance_of(messages->parent, notmuch_rb_cQuery)) {
+        Data_Get_Struct(messages->parent, notmuch_rb_query_t, query);
+        Data_Get_Struct(query->db, notmuch_rb_database_t, db);
+    }
+    else if (rb_obj_is_instance_of(messages->parent, notmuch_rb_cThread)) {
+        Data_Get_Struct(messages->parent, notmuch_rb_thread_t, thread);
+        Data_Get_Struct(thread->threads, notmuch_rb_threads_t, threads);
+        Data_Get_Struct(threads->query, notmuch_rb_query_t, query);
+        Data_Get_Struct(query->db, notmuch_rb_database_t, db);
+    }
+    else if (rb_obj_is_instance_of(messages->parent, notmuch_rb_cMessage)) {
+        Data_Get_Struct(messages->parent, notmuch_rb_message_t, message);
+        db = _notmuch_rb_message_db(message);
+    }
+    else
+        rb_bug("messages' parent is neither query nor thread nor message");
+
+    return db;
+}
+
+static notmuch_rb_database_t *
+_notmuch_rb_thread_db(notmuch_rb_thread_t *thread)
+{
+    notmuch_rb_threads_t *threads;
+    notmuch_rb_query_t *query;
+    notmuch_rb_database_t *db;
+
+    Data_Get_Struct(thread->threads, notmuch_rb_threads_t, threads);
+    Data_Get_Struct(threads->query, notmuch_rb_query_t, query);
+    Data_Get_Struct(query->db, notmuch_rb_database_t, db);
+
+    return db;
+}
+
+void
+notmuch_rb_database_free(notmuch_rb_database_t *db)
+{
+    if (db->nm_db)
+        notmuch_database_close(db->nm_db);
+
+    free(db);
+}
+
+void
+notmuch_rb_directory_mark(notmuch_rb_directory_t *dir)
+{
+    rb_gc_mark(dir->db);
+}
+
+void
+notmuch_rb_directory_free(notmuch_rb_directory_t *dir)
+{
+    notmuch_rb_database_t *db;
+
+    Data_Get_Struct(dir->db, notmuch_rb_database_t, db);
+
+    if (db->nm_db && dir->nm_dir)
+        notmuch_directory_destroy(dir->nm_dir);
+
+    free(dir);
+}
+
+void
+notmuch_rb_filenames_mark(notmuch_rb_filenames_t *flist)
+{
+    rb_gc_mark(flist->dir);
+}
+
+void
+notmuch_rb_filenames_free(notmuch_rb_filenames_t *flist)
+{
+    notmuch_rb_directory_t *dir;
+    notmuch_rb_database_t *db;
+
+    Data_Get_Struct(flist->dir, notmuch_rb_directory_t, dir);
+    Data_Get_Struct(dir->db, notmuch_rb_database_t, db);
+
+    if (db->nm_db && flist->nm_flist)
+        notmuch_filenames_destroy(flist->nm_flist);
+
+    free(flist);
+}
+
+void
+notmuch_rb_query_mark(notmuch_rb_query_t *query)
+{
+    rb_gc_mark(query->db);
+}
+
+void
+notmuch_rb_query_free(notmuch_rb_query_t *query)
+{
+    notmuch_rb_database_t *db;
+
+    Data_Get_Struct(query->db, notmuch_rb_database_t, db);
+
+    if (db->nm_db && query->nm_query)
+        notmuch_query_destroy(query->nm_query);
+
+    free(query);
+}
+
+void
+notmuch_rb_threads_mark(notmuch_rb_threads_t *threads)
+{
+    rb_gc_mark(threads->query);
+}
+
+void
+notmuch_rb_threads_free(notmuch_rb_threads_t *threads)
+{
+    notmuch_rb_query_t *query;
+    notmuch_rb_database_t *db;
+
+    Data_Get_Struct(threads->query, notmuch_rb_query_t, query);
+    Data_Get_Struct(query->db, notmuch_rb_database_t, db);
+
+    if (db->nm_db && threads->nm_threads)
+        notmuch_threads_destroy(threads->nm_threads);
+
+    free(threads);
+}
+
+void
+notmuch_rb_messages_mark(notmuch_rb_messages_t *messages)
+{
+    rb_gc_mark(messages->parent);
+}
+
+void
+notmuch_rb_messages_free(notmuch_rb_messages_t *messages)
+{
+    notmuch_rb_database_t *db;
+
+    db = _notmuch_rb_messages_db(messages);
+
+    if (db->nm_db && messages->nm_messages)
+        notmuch_messages_destroy(messages->nm_messages);
+
+    free(messages);
+}
+
+void
+notmuch_rb_thread_mark(notmuch_rb_thread_t *thread)
+{
+    rb_gc_mark(thread->threads);
+}
+
+void
+notmuch_rb_thread_free(notmuch_rb_thread_t *thread)
+{
+    notmuch_rb_database_t *db;
+
+    db = _notmuch_rb_thread_db(thread);
+
+    if (db->nm_db && thread->nm_thread)
+        notmuch_thread_destroy(thread->nm_thread);
+
+    free(thread);
+}
+
+void
+notmuch_rb_message_mark(notmuch_rb_message_t *message)
+{
+    rb_gc_mark(message->parent);
+}
+
+void
+notmuch_rb_message_free(notmuch_rb_message_t *message)
+{
+    notmuch_rb_database_t *db;
+
+    db = _notmuch_rb_message_db(message);
+    if (db->nm_db && message->nm_message)
+        notmuch_message_destroy(message->nm_message);
+
+    free(message);
+}
+
+void
+notmuch_rb_tags_mark(notmuch_rb_tags_t *tags)
+{
+    rb_gc_mark(tags->parent);
+}
+
+void
+notmuch_rb_tags_free(notmuch_rb_tags_t *tags)
+{
+    notmuch_rb_message_t *message;
+    notmuch_rb_messages_t *messages;
+    notmuch_rb_thread_t *thread;
+    notmuch_rb_database_t *db;
+
+    if (rb_obj_is_instance_of(tags->parent, notmuch_rb_cThread)) {
+        Data_Get_Struct(tags->parent, notmuch_rb_thread_t, thread);
+        db = _notmuch_rb_thread_db(thread);
+    }
+    else if (rb_obj_is_instance_of(tags->parent, notmuch_rb_cMessage)) {
+        Data_Get_Struct(tags->parent, notmuch_rb_message_t, message);
+        db = _notmuch_rb_message_db(message);
+    }
+    else if (rb_obj_is_instance_of(tags->parent, notmuch_rb_cMessages)) {
+        Data_Get_Struct(tags->parent, notmuch_rb_messages_t, messages);
+        db = _notmuch_rb_messages_db(messages);
+    }
+    else
+        rb_bug("tags' parent is neither thread nor message nor messages");
+
+    if (db->nm_db && tags->nm_tags)
+        notmuch_tags_destroy(tags->nm_tags);
+
+    free(tags);
+}
diff --git a/bindings/ruby/init.c b/bindings/ruby/init.c
new file mode 100644
index 00000000..61077ccb
--- /dev/null
+++ b/bindings/ruby/init.c
@@ -0,0 +1,272 @@
+/* The Ruby interface to the notmuch mail library
+ *
+ * Copyright © 2010 Ali Polatel
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Ali Polatel <alip@exherbo.org>
+ */
+
+#include "defs.h"
+
+/*
+ * Document-module: Notmuch
+ *
+ * == Summary
+ *
+ * Ruby extension to the <tt>notmuch</tt> mail library.
+ *
+ * == Constants
+ *
+ * - Notmuch::MODE_READ_ONLY
+ *
+ *   Open the database in read only mode.
+ *
+ * - Notmuch::MODE_READ_WRITE
+ *
+ *   Open the database in read write mode.
+ *
+ * - Notmuch::TAG_MAX
+ *
+ *   Maximum allowed length of a tag
+ */
+
+/*
+ * Document-class: Notmuch::Database
+ *
+ * Notmuch database interaction
+ */
+
+/*
+ * Document-class: Notmuch::Directory
+ *
+ * Notmuch directory
+ */
+
+/*
+ * Document-class: Notmuch::FileNames
+ *
+ * Notmuch file names
+ */
+
+/*
+ * Document-class: Notmuch::Query
+ *
+ * Notmuch query
+ */
+
+/*
+ * Document-class: Notmuch::Threads
+ *
+ * Notmuch threads
+ */
+
+/*
+ * Document-class: Notmuch::Messages
+ *
+ * Notmuch messages
+ */
+
+/*
+ * Document-class: Notmuch::Thread
+ *
+ * Notmuch thread
+ */
+
+/*
+ * Document-class: Notmuch::Message
+ *
+ * Notmuch message
+ */
+
+/*
+ * Document-class: Notmuch::Tags
+ *
+ * Notmuch tags
+ */
+
+/*
+ * Document-class: Notmuch::BaseError
+ *
+ * Base class for all notmuch exceptions
+ */
+
+/*
+ * Document-class: Notmuch::DatabaseError
+ *
+ * Raised when the database can't be created or opened.
+ */
+
+/*
+ * Document-class: Notmuch::MemoryError
+ *
+ * Raised when notmuch is out of memory
+ */
+
+/*
+ * Document-class: Notmuch::ReadOnlyError
+ *
+ * Raised when an attempt was made to write to a database opened in read-only
+ * mode.
+ */
+
+/*
+ * Document-class: Notmuch::XapianError
+ *
+ * Raised when a Xapian exception occurs
+ */
+
+/*
+ * Document-class: Notmuch::FileError
+ *
+ * Raised when an error occurs trying to read or write to a file.
+ */
+
+/*
+ * Document-class: Notmuch::FileNotEmailError
+ *
+ * Raised when a file is presented that doesn't appear to be an email message.
+ */
+
+/*
+ * Document-class: Notmuch::NullPointerError
+ *
+ * Raised when the user erroneously passes a +NULL+ pointer to a notmuch
+ * function.
+ */
+
+/*
+ * Document-class: Notmuch::TagTooLongError
+ *
+ * Raised when a tag value is too long (exceeds Notmuch::TAG_MAX)
+ */
+
+/*
+ * Document-class: Notmuch::UnbalancedFreezeThawError
+ *
+ * Raised when the notmuch_message_thaw function has been called more times
+ * than notmuch_message_freeze.
+ */
+
+#define RDOC_HATE 1
+
+void
+Init_notmuch(void)
+{
+    VALUE mod;
+
+    ID_call = rb_intern("call");
+    ID_db_create = rb_intern("create");
+    ID_db_mode = rb_intern("mode");
+
+    mod = rb_define_module("Notmuch");
+
+    rb_define_const(mod, "MODE_READ_ONLY", INT2FIX(NOTMUCH_DATABASE_MODE_READ_ONLY));
+    rb_define_const(mod, "MODE_READ_WRITE", INT2FIX(NOTMUCH_DATABASE_MODE_READ_WRITE));
+    rb_define_const(mod, "SORT_OLDEST_FIRST", INT2FIX(NOTMUCH_SORT_OLDEST_FIRST));
+    rb_define_const(mod, "SORT_NEWEST_FIRST", INT2FIX(NOTMUCH_SORT_NEWEST_FIRST));
+    rb_define_const(mod, "SORT_MESSAGE_ID", INT2FIX(NOTMUCH_SORT_MESSAGE_ID));
+    rb_define_const(mod, "SORT_UNSORTED", INT2FIX(NOTMUCH_SORT_UNSORTED));
+    rb_define_const(mod, "MESSAGE_FLAG_MATCH", INT2FIX(NOTMUCH_MESSAGE_FLAG_MATCH));
+    rb_define_const(mod, "TAG_MAX", INT2FIX(NOTMUCH_TAG_MAX));
+
+    notmuch_rb_eBaseError = rb_define_class_under(mod, "BaseError", rb_eStandardError);
+    notmuch_rb_eDatabaseError = rb_define_class_under(mod, "DatabaseError", notmuch_rb_eBaseError);
+    notmuch_rb_eMemoryError = rb_define_class_under(mod, "MemoryError", notmuch_rb_eBaseError);
+    notmuch_rb_eReadOnlyError = rb_define_class_under(mod, "ReadOnlyError", notmuch_rb_eBaseError);
+    notmuch_rb_eXapianError = rb_define_class_under(mod, "XapianError", notmuch_rb_eBaseError);
+    notmuch_rb_eFileError = rb_define_class_under(mod, "FileError", notmuch_rb_eBaseError);
+    notmuch_rb_eFileNotEmailError = rb_define_class_under(mod, "FileNotEmailError", notmuch_rb_eBaseError);
+    notmuch_rb_eNullPointerError = rb_define_class_under(mod, "NullPointerError", notmuch_rb_eBaseError);
+    notmuch_rb_eTagTooLongError = rb_define_class_under(mod, "TagTooLongError", notmuch_rb_eBaseError);
+    notmuch_rb_eUnbalancedFreezeThawError = rb_define_class_under(mod, "UnbalancedFreezeThawError",
+            notmuch_rb_eBaseError);
+
+    notmuch_rb_cDatabase = rb_define_class_under(mod, "Database", rb_cObject);
+    rb_define_singleton_method(notmuch_rb_cDatabase, "new", notmuch_rb_database_new, -1);
+    rb_define_method(notmuch_rb_cDatabase, "close", notmuch_rb_database_close, 0);
+    rb_define_method(notmuch_rb_cDatabase, "path", notmuch_rb_database_path, 0);
+    rb_define_method(notmuch_rb_cDatabase, "version", notmuch_rb_database_version, 0);
+    rb_define_method(notmuch_rb_cDatabase, "needs_upgrade?", notmuch_rb_database_needs_upgrade, 0);
+    rb_define_method(notmuch_rb_cDatabase, "upgrade!", notmuch_rb_database_upgrade, 0);
+    rb_define_method(notmuch_rb_cDatabase, "get_directory", notmuch_rb_database_get_directory, 1);
+    rb_define_method(notmuch_rb_cDatabase, "add_message", notmuch_rb_database_add_message, 1);
+    rb_define_method(notmuch_rb_cDatabase, "remove_message", notmuch_rb_database_remove_message, 1);
+    rb_define_method(notmuch_rb_cDatabase, "query", notmuch_rb_database_query_create, 1);
+
+    notmuch_rb_cDirectory = rb_define_class_under(mod, "Directory", rb_cObject);
+    rb_undef_method(notmuch_rb_cDirectory, "initialize");
+    rb_define_method(notmuch_rb_cDirectory, "mtime", notmuch_rb_directory_get_mtime, 0);
+    rb_define_method(notmuch_rb_cDirectory, "mtime=", notmuch_rb_directory_set_mtime, 1);
+    rb_define_method(notmuch_rb_cDirectory, "child_files", notmuch_rb_directory_get_child_files, 0);
+    rb_define_method(notmuch_rb_cDirectory, "child_directories", notmuch_rb_directory_get_child_directories, 0);
+
+    notmuch_rb_cFileNames = rb_define_class_under(mod, "FileNames", rb_cObject);
+    rb_undef_method(notmuch_rb_cFileNames, "initialize");
+    rb_define_method(notmuch_rb_cFileNames, "each", notmuch_rb_filenames_each, 0);
+    rb_include_module(notmuch_rb_cFileNames, rb_mEnumerable);
+
+    notmuch_rb_cQuery = rb_define_class_under(mod, "Query", rb_cObject);
+    rb_undef_method(notmuch_rb_cQuery, "initialize");
+    rb_define_method(notmuch_rb_cQuery, "sort=", notmuch_rb_query_set_sort, 1);
+    rb_define_method(notmuch_rb_cQuery, "search_threads", notmuch_rb_query_search_threads, 0);
+    rb_define_method(notmuch_rb_cQuery, "search_messages", notmuch_rb_query_search_messages, 0);
+
+    notmuch_rb_cThreads = rb_define_class_under(mod, "Threads", rb_cObject);
+    rb_undef_method(notmuch_rb_cThreads, "initialize");
+    rb_define_method(notmuch_rb_cThreads, "each", notmuch_rb_threads_each, 0);
+    rb_include_module(notmuch_rb_cThreads, rb_mEnumerable);
+
+    notmuch_rb_cMessages = rb_define_class_under(mod, "Messages", rb_cObject);
+    rb_undef_method(notmuch_rb_cMessages, "initialize");
+    rb_define_method(notmuch_rb_cMessages, "each", notmuch_rb_messages_each, 0);
+    rb_define_method(notmuch_rb_cMessages, "tags", notmuch_rb_messages_collect_tags, 0);
+    rb_include_module(notmuch_rb_cMessages, rb_mEnumerable);
+
+    notmuch_rb_cThread = rb_define_class_under(mod, "Thread", rb_cObject);
+    rb_undef_method(notmuch_rb_cThread, "initialize");
+    rb_define_method(notmuch_rb_cThread, "thread_id", notmuch_rb_thread_get_thread_id, 0);
+    rb_define_method(notmuch_rb_cThread, "total_messages", notmuch_rb_thread_get_total_messages, 0);
+    rb_define_method(notmuch_rb_cThread, "toplevel_messages", notmuch_rb_thread_get_toplevel_messages, 0);
+    rb_define_method(notmuch_rb_cThread, "matched_messages", notmuch_rb_thread_get_matched_messages, 0);
+    rb_define_method(notmuch_rb_cThread, "authors", notmuch_rb_thread_get_authors, 0);
+    rb_define_method(notmuch_rb_cThread, "subject", notmuch_rb_thread_get_subject, 0);
+    rb_define_method(notmuch_rb_cThread, "oldest_date", notmuch_rb_thread_get_oldest_date, 0);
+    rb_define_method(notmuch_rb_cThread, "newest_date", notmuch_rb_thread_get_newest_date, 0);
+    rb_define_method(notmuch_rb_cThread, "tags", notmuch_rb_thread_get_tags, 0);
+
+    notmuch_rb_cMessage = rb_define_class_under(mod, "Message", rb_cObject);
+    rb_undef_method(notmuch_rb_cMessage, "initialize");
+    rb_define_method(notmuch_rb_cMessage, "message_id", notmuch_rb_message_get_message_id, 0);
+    rb_define_method(notmuch_rb_cMessage, "thread_id", notmuch_rb_message_get_thread_id, 0);
+    rb_define_method(notmuch_rb_cMessage, "replies", notmuch_rb_message_get_replies, 0);
+    rb_define_method(notmuch_rb_cMessage, "filename", notmuch_rb_message_get_filename, 0);
+    rb_define_method(notmuch_rb_cMessage, "get_flag", notmuch_rb_message_get_flag, 1);
+    rb_define_method(notmuch_rb_cMessage, "set_flag", notmuch_rb_message_set_flag, 2);
+    rb_define_method(notmuch_rb_cMessage, "date", notmuch_rb_message_get_date, 0);
+    rb_define_method(notmuch_rb_cMessage, "header", notmuch_rb_message_get_header, 1);
+    rb_define_alias(notmuch_rb_cMessage, "[]", "header");
+    rb_define_method(notmuch_rb_cMessage, "tags", notmuch_rb_message_get_tags, 0);
+    rb_define_method(notmuch_rb_cMessage, "add_tag", notmuch_rb_message_add_tag, 1);
+    rb_define_alias(notmuch_rb_cMessage, "<<", "add_tag");
+    rb_define_method(notmuch_rb_cMessage, "remove_tag", notmuch_rb_message_remove_tag, 1);
+    rb_define_method(notmuch_rb_cMessage, "remove_all_tags", notmuch_rb_message_remove_all_tags, 0);
+    rb_define_method(notmuch_rb_cMessage, "freeze", notmuch_rb_message_freeze, 0);
+    rb_define_method(notmuch_rb_cMessage, "thaw", notmuch_rb_message_thaw, 0);
+
+    notmuch_rb_cTags = rb_define_class_under(mod, "Tags", rb_cObject);
+    rb_undef_method(notmuch_rb_cTags, "initialize");
+    rb_define_method(notmuch_rb_cTags, "each", notmuch_rb_tags_each, 0);
+    rb_include_module(notmuch_rb_cTags, rb_mEnumerable);
+}
diff --git a/bindings/ruby/message.c b/bindings/ruby/message.c
new file mode 100644
index 00000000..6c7a0391
--- /dev/null
+++ b/bindings/ruby/message.c
@@ -0,0 +1,303 @@
+/* The Ruby interface to the notmuch mail library
+ *
+ * Copyright © 2010 Ali Polatel
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Ali Polatel <alip@exherbo.org>
+ */
+
+#include "defs.h"
+
+/*
+ * call-seq: MESSAGE.message_id => String
+ *
+ * Get the message ID of 'message'.
+ */
+VALUE
+notmuch_rb_message_get_message_id(VALUE self)
+{
+    const char *msgid;
+    notmuch_rb_message_t *message;
+
+    Data_Get_Struct(self, notmuch_rb_message_t, message);
+
+    msgid = notmuch_message_get_message_id(message->nm_message);
+    return msgid ? rb_str_new2(msgid) : Qnil;
+}
+
+/*
+ * call-seq: MESSAGE.thread_id => String
+ *
+ * Get the thread ID of 'message'.
+ */
+VALUE
+notmuch_rb_message_get_thread_id(VALUE self)
+{
+    const char *tid;
+    notmuch_rb_message_t *message;
+
+    Data_Get_Struct(self, notmuch_rb_message_t, message);
+
+    tid = notmuch_message_get_thread_id(message->nm_message);
+    return tid ? rb_str_new2(tid) : Qnil;
+}
+
+/*
+ * call-seq: MESSAGE.replies => MESSAGES
+ *
+ * Get a Notmuch::Messages enumerable for all of the replies to 'message'.
+ */
+VALUE
+notmuch_rb_message_get_replies(VALUE self)
+{
+    notmuch_rb_messages_t *messages;
+    notmuch_rb_message_t *message;
+    VALUE messagesv;
+
+    Data_Get_Struct(self, notmuch_rb_message_t, message);
+
+    messagesv = Data_Make_Struct(notmuch_rb_cMessages, notmuch_rb_messages_t,
+            notmuch_rb_messages_mark, notmuch_rb_messages_free, messages);
+    messages->nm_messages = notmuch_message_get_replies(message->nm_message);
+    messages->parent = self;
+
+    return messages->nm_messages ? messagesv : Qnil;
+}
+
+/*
+ * call-seq: MESSAGE.filename => String
+ *
+ * Get a filename for the email corresponding to 'message'
+ */
+VALUE
+notmuch_rb_message_get_filename(VALUE self)
+{
+    const char *fname;
+    notmuch_rb_message_t *message;
+
+    Data_Get_Struct(self, notmuch_rb_message_t, message);
+
+    fname = notmuch_message_get_filename(message->nm_message);
+    return fname ? rb_str_new2(fname) : Qnil;
+}
+
+/*
+ * call-seq: MESSAGE.get_flag(flag) => true or false
+ *
+ * Get a value of a flag for the email corresponding to 'message'
+ */
+VALUE
+notmuch_rb_message_get_flag(VALUE self, VALUE flagv)
+{
+    notmuch_rb_message_t *message;
+
+    Data_Get_Struct(self, notmuch_rb_message_t, message);
+
+    if (!FIXNUM_P(flagv))
+        rb_raise(rb_eTypeError, "Flag not a Fixnum");
+
+    return notmuch_message_get_flag(message->nm_message, FIX2INT(flagv)) ? Qtrue : Qfalse;
+}
+
+/*
+ * call-seq: MESSAGE.set_flag(flag, value) => nil
+ *
+ * Set a value of a flag for the email corresponding to 'message'
+ */
+VALUE
+notmuch_rb_message_set_flag(VALUE self, VALUE flagv, VALUE valuev)
+{
+    notmuch_rb_message_t *message;
+
+    Data_Get_Struct(self, notmuch_rb_message_t, message);
+
+    if (!FIXNUM_P(flagv))
+        rb_raise(rb_eTypeError, "Flag not a Fixnum");
+
+    notmuch_message_set_flag(message->nm_message, FIX2INT(flagv), RTEST(valuev));
+    return Qnil;
+}
+
+/*
+ * call-seq: MESSAGE.date => Fixnum
+ *
+ * Get the date of 'message'
+ */
+VALUE
+notmuch_rb_message_get_date(VALUE self)
+{
+    notmuch_rb_message_t *message;
+
+    Data_Get_Struct(self, notmuch_rb_message_t, message);
+
+    return UINT2NUM(notmuch_message_get_date(message->nm_message));
+}
+
+/*
+ * call-seq: MESSAGE.header(name) => String
+ *
+ * Get the value of the specified header from 'message'
+ */
+VALUE
+notmuch_rb_message_get_header(VALUE self, VALUE headerv)
+{
+    const char *header, *value;
+    notmuch_rb_message_t *message;
+
+    Data_Get_Struct(self, notmuch_rb_message_t, message);
+
+#if !defined(RSTRING_PTR)
+#define RSTRING_PTR(v) (RSTRING((v))->ptr)
+#endif /* !defined(RSTRING_PTR) */
+
+    SafeStringValue(headerv);
+    header = RSTRING_PTR(headerv);
+
+    value = notmuch_message_get_header(message->nm_message, header);
+    if (!value)
+        rb_raise(notmuch_rb_eMemoryError, "out of memory");
+
+    return rb_str_new2(value);
+}
+
+/*
+ * call-seq: MESSAGE.tags => TAGS
+ *
+ * Get a Notmuch::Tags enumerable for all of the tags of 'message'.
+ */
+VALUE
+notmuch_rb_message_get_tags(VALUE self)
+{
+    notmuch_rb_message_t *message;
+    notmuch_rb_tags_t *tags;
+    VALUE tagsv;
+
+    Data_Get_Struct(self, notmuch_rb_message_t, message);
+
+    tagsv = Data_Make_Struct(notmuch_rb_cTags, notmuch_rb_tags_t,
+            notmuch_rb_tags_mark, notmuch_rb_tags_free, tags);
+    tags->nm_tags = notmuch_message_get_tags(message->nm_message);
+    tags->parent = self;
+    if (!tags->nm_tags)
+        rb_raise(notmuch_rb_eMemoryError, "out of memory");
+
+    return tagsv;
+}
+
+/*
+ * call-seq: MESSAGE.add_tag(tag) => true
+ *
+ * Add a tag to the 'message'
+ */
+VALUE
+notmuch_rb_message_add_tag(VALUE self, VALUE tagv)
+{
+    const char *tag;
+    notmuch_status_t ret;
+    notmuch_rb_message_t *message;
+
+    Data_Get_Struct(self, notmuch_rb_message_t, message);
+
+#if !defined(RSTRING_PTR)
+#define RSTRING_PTR(v) (RSTRING((v))->ptr)
+#endif /* !defined(RSTRING_PTR) */
+
+    SafeStringValue(tagv);
+    tag = RSTRING_PTR(tagv);
+
+    ret = notmuch_message_add_tag(message->nm_message, tag);
+    notmuch_rb_status_raise(ret);
+    return Qtrue;
+}
+
+/*
+ * call-seq: MESSAGE.remove_tag(tag) => true
+ *
+ * Remove a tag from the 'message'
+ */
+VALUE
+notmuch_rb_message_remove_tag(VALUE self, VALUE tagv)
+{
+    const char *tag;
+    notmuch_status_t ret;
+    notmuch_rb_message_t *message;
+
+    Data_Get_Struct(self, notmuch_rb_message_t, message);
+
+#if !defined(RSTRING_PTR)
+#define RSTRING_PTR(v) (RSTRING((v))->ptr)
+#endif /* !defined(RSTRING_PTR) */
+
+    SafeStringValue(tagv);
+    tag = RSTRING_PTR(tagv);
+
+    ret = notmuch_message_remove_tag(message->nm_message, tag);
+    notmuch_rb_status_raise(ret);
+    return Qtrue;
+}
+
+/*
+ * call-seq: MESSAGE.remove_all_tags => true
+ *
+ * Remove all tags of the 'message'
+ */
+VALUE
+notmuch_rb_message_remove_all_tags(VALUE self)
+{
+    notmuch_status_t ret;
+    notmuch_rb_message_t *message;
+
+    Data_Get_Struct(self, notmuch_rb_message_t, message);
+
+    ret = notmuch_message_remove_all_tags(message->nm_message);
+    notmuch_rb_status_raise(ret);
+    return Qtrue;
+}
+
+/*
+ * call-seq: MESSAGE.freeze => true
+ *
+ * Freeze the 'message'
+ */
+VALUE
+notmuch_rb_message_freeze(VALUE self)
+{
+    notmuch_status_t ret;
+    notmuch_rb_message_t *message;
+
+    Data_Get_Struct(self, notmuch_rb_message_t, message);
+
+    ret = notmuch_message_freeze(message->nm_message);
+    notmuch_rb_status_raise(ret);
+    return Qtrue;
+}
+
+/*
+ * call-seq: MESSAGE.thaw => true
+ *
+ * Thaw a 'message'
+ */
+VALUE
+notmuch_rb_message_thaw(VALUE self)
+{
+    notmuch_status_t ret;
+    notmuch_rb_message_t *message;
+
+    Data_Get_Struct(self, notmuch_rb_message_t, message);
+
+    ret = notmuch_message_thaw(message->nm_message);
+    notmuch_rb_status_raise(ret);
+    return Qtrue;
+}
diff --git a/bindings/ruby/messages.c b/bindings/ruby/messages.c
new file mode 100644
index 00000000..6b296b32
--- /dev/null
+++ b/bindings/ruby/messages.c
@@ -0,0 +1,74 @@
+/* The Ruby interface to the notmuch mail library
+ *
+ * Copyright © 2010 Ali Polatel
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Ali Polatel <alip@exherbo.org>
+ */
+
+#include "defs.h"
+
+/* call-seq: MESSAGES.each {|item| block } => MESSAGES
+ *
+ * Calls +block+ once for each message in +self+, passing that element as a
+ * parameter.
+ */
+VALUE
+notmuch_rb_messages_each(VALUE self)
+{
+    notmuch_rb_message_t *message;
+    notmuch_rb_messages_t *messages;
+    VALUE messagev;
+
+    Data_Get_Struct(self, notmuch_rb_messages_t, messages);
+    if (!messages->nm_messages)
+        return self;
+
+    for (; notmuch_messages_valid(messages->nm_messages);
+            notmuch_messages_move_to_next(messages->nm_messages))
+    {
+        messagev = Data_Make_Struct(notmuch_rb_cMessage, notmuch_rb_message_t,
+                notmuch_rb_message_mark, notmuch_rb_message_free, message);
+        message->nm_message = notmuch_messages_get(messages->nm_messages);
+        message->parent = self;
+        rb_yield(messagev);
+    }
+
+    return self;
+}
+
+/*
+ * call-seq: MESSAGES.tags => TAGS
+ *
+ * Collect tags from the messages
+ */
+VALUE
+notmuch_rb_messages_collect_tags(VALUE self)
+{
+    notmuch_rb_tags_t *tags;
+    notmuch_rb_messages_t *messages;
+    VALUE tagsv;
+
+    Data_Get_Struct(self, notmuch_rb_messages_t, messages);
+
+    tagsv = Data_Make_Struct(notmuch_rb_cTags, notmuch_rb_tags_t,
+            notmuch_rb_tags_mark, notmuch_rb_tags_free, tags);
+    tags->nm_tags = notmuch_messages_collect_tags(messages->nm_messages);
+    tags->parent = self;
+    if (!tags->nm_tags)
+        rb_raise(notmuch_rb_eMemoryError, "out of memory");
+
+    return tagsv;
+}
diff --git a/bindings/ruby/query.c b/bindings/ruby/query.c
new file mode 100644
index 00000000..50edf170
--- /dev/null
+++ b/bindings/ruby/query.c
@@ -0,0 +1,88 @@
+/* The Ruby interface to the notmuch mail library
+ *
+ * Copyright © 2010 Ali Polatel
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Ali Polatel <alip@exherbo.org>
+ */
+
+#include "defs.h"
+
+/*
+ * call-seq: QUERY.sort=(fixnum) => nil
+ *
+ * Set sort type of the +QUERY+
+ */
+VALUE
+notmuch_rb_query_set_sort(VALUE self, VALUE sortv)
+{
+    notmuch_rb_query_t *query;
+
+    Data_Get_Struct(self, notmuch_rb_query_t, query);
+
+    if (!FIXNUM_P(sortv))
+        rb_raise(rb_eTypeError, "Not a fixnum");
+
+    notmuch_query_set_sort(query->nm_query, FIX2UINT(sortv));
+    return Qnil;
+}
+
+/*
+ * call-seq: QUERY.search_threads => THREADS
+ *
+ * Search for threads
+ */
+VALUE
+notmuch_rb_query_search_threads(VALUE self)
+{
+    notmuch_rb_query_t *query;
+    notmuch_rb_threads_t *threads;
+    VALUE threadsv;
+
+    Data_Get_Struct(self, notmuch_rb_query_t, query);
+
+    threadsv = Data_Make_Struct(notmuch_rb_cThreads, notmuch_rb_threads_t,
+            notmuch_rb_threads_mark, notmuch_rb_threads_free, threads);
+    threads->nm_threads = notmuch_query_search_threads(query->nm_query);
+    threads->query = self;
+    if (!threads->nm_threads)
+        rb_raise(notmuch_rb_eMemoryError, "out of memory");
+
+    return threadsv;
+}
+
+/*
+ * call-seq: QUERY.search_messages => MESSAGES
+ *
+ * Search for messages
+ */
+VALUE
+notmuch_rb_query_search_messages(VALUE self)
+{
+    notmuch_rb_query_t *query;
+    notmuch_rb_messages_t *messages;
+    VALUE messagesv;
+
+    Data_Get_Struct(self, notmuch_rb_query_t, query);
+
+    messagesv = Data_Make_Struct(notmuch_rb_cMessages, notmuch_rb_messages_t,
+            notmuch_rb_messages_mark, notmuch_rb_messages_free, messages);
+    messages->nm_messages = notmuch_query_search_messages(query->nm_query);
+    messages->parent = self;
+    if (!messages->nm_messages)
+        rb_raise(notmuch_rb_eMemoryError, "out of memory");
+
+    return messagesv;
+}
diff --git a/bindings/ruby/rdoc.sh b/bindings/ruby/rdoc.sh
new file mode 100755
index 00000000..0e86818a
--- /dev/null
+++ b/bindings/ruby/rdoc.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+# vim: set sw=4 et sts=4 tw=80 :
+
+# RDoc fails to document C extension split into many files.
+# This is a hack to generate documentation properly.
+
+rm -fr ruby
+cat *.c > rdoc-sucks.c
+rdoc --main 'Notmuch' --title 'Notmuch Ruby API' --op ruby rdoc-sucks.c
+rm -f rdoc-sucks.c
diff --git a/bindings/ruby/status.c b/bindings/ruby/status.c
new file mode 100644
index 00000000..3d106ca9
--- /dev/null
+++ b/bindings/ruby/status.c
@@ -0,0 +1,49 @@
+/* The Ruby interface to the notmuch mail library
+ *
+ * Copyright © 2010 Ali Polatel
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Ali Polatel <alip@exherbo.org>
+ */
+
+#include "defs.h"
+
+void
+notmuch_rb_status_raise(notmuch_status_t status)
+{
+    switch (status) {
+    case NOTMUCH_STATUS_SUCCESS:
+    case NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID:
+        break;
+    case NOTMUCH_STATUS_OUT_OF_MEMORY:
+        rb_raise(notmuch_rb_eMemoryError, "out of memory");
+    case NOTMUCH_STATUS_READ_ONLY_DATABASE:
+        rb_raise(notmuch_rb_eReadOnlyError, "read-only database");
+    case NOTMUCH_STATUS_XAPIAN_EXCEPTION:
+        rb_raise(notmuch_rb_eXapianError, "xapian exception");
+    case NOTMUCH_STATUS_FILE_ERROR:
+        rb_raise(notmuch_rb_eFileError, "failed to read/write file");
+    case NOTMUCH_STATUS_FILE_NOT_EMAIL:
+        rb_raise(notmuch_rb_eFileNotEmailError, "file not email");
+    case NOTMUCH_STATUS_NULL_POINTER:
+        rb_raise(notmuch_rb_eNullPointerError, "null pointer");
+    case NOTMUCH_STATUS_TAG_TOO_LONG:
+        rb_raise(notmuch_rb_eTagTooLongError, "tag too long");
+    case NOTMUCH_STATUS_UNBALANCED_FREEZE_THAW:
+        rb_raise(notmuch_rb_eUnbalancedFreezeThawError, "unbalanced freeze/thaw");
+    default:
+        rb_raise(notmuch_rb_eBaseError, "unknown notmuch error");
+    }
+}
diff --git a/bindings/ruby/tags.c b/bindings/ruby/tags.c
new file mode 100644
index 00000000..d0a5054a
--- /dev/null
+++ b/bindings/ruby/tags.c
@@ -0,0 +1,46 @@
+/* The Ruby interface to the notmuch mail library
+ *
+ * Copyright © 2010 Ali Polatel
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Ali Polatel <alip@exherbo.org>
+ */
+
+#include "defs.h"
+
+/*
+ * call-seq: TAGS.each {|item| block } => TAGS
+ *
+ * Calls +block+ once for each element in +self+, passing that element as a
+ * parameter.
+ */
+VALUE
+notmuch_rb_tags_each(VALUE self)
+{
+    const char *tag;
+    notmuch_rb_tags_t *tags;
+
+    Data_Get_Struct(self, notmuch_rb_tags_t, tags);
+    if (!tags->nm_tags)
+        return self;
+
+    for (; notmuch_tags_valid(tags->nm_tags);
+            notmuch_tags_move_to_next(tags->nm_tags)) {
+        tag = notmuch_tags_get(tags->nm_tags);
+        rb_yield(tag ? rb_str_new2(tag) : Qnil);
+    }
+
+    return self;
+}
diff --git a/bindings/ruby/thread.c b/bindings/ruby/thread.c
new file mode 100644
index 00000000..72a86b8f
--- /dev/null
+++ b/bindings/ruby/thread.c
@@ -0,0 +1,180 @@
+/* The Ruby interface to the notmuch mail library
+ *
+ * Copyright © 2010 Ali Polatel
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Ali Polatel <alip@exherbo.org>
+ */
+
+#include "defs.h"
+
+/*
+ * call-seq: THREAD.thread_id => String
+ *
+ * Returns the thread id
+ */
+VALUE
+notmuch_rb_thread_get_thread_id(VALUE self)
+{
+    const char *tid;
+    notmuch_rb_thread_t *thread;
+
+    Data_Get_Struct(self, notmuch_rb_thread_t, thread);
+
+    tid = notmuch_thread_get_thread_id(thread->nm_thread);
+    return tid ? rb_str_new2(tid) : Qnil;
+}
+
+/*
+ * call-seq: THREAD.total_messages => fixnum
+ *
+ * Returns the number of total messages
+ */
+VALUE
+notmuch_rb_thread_get_total_messages(VALUE self)
+{
+    notmuch_rb_thread_t *thread;
+
+    Data_Get_Struct(self, notmuch_rb_thread_t, thread);
+
+    return INT2FIX(notmuch_thread_get_total_messages(thread->nm_thread));
+}
+
+/*
+ * call-seq: THREAD.toplevel_messages => MESSAGES
+ *
+ * Get a Notmuch::Messages iterator for the top level messages in thread.
+ */
+VALUE
+notmuch_rb_thread_get_toplevel_messages(VALUE self)
+{
+    notmuch_rb_messages_t *messages;
+    notmuch_rb_thread_t *thread;
+    VALUE messagesv;
+
+    Data_Get_Struct(self, notmuch_rb_thread_t, thread);
+
+    messagesv = Data_Make_Struct(notmuch_rb_cMessages, notmuch_rb_messages_t,
+            notmuch_rb_messages_mark, notmuch_rb_messages_free, messages);
+    messages->nm_messages = notmuch_thread_get_toplevel_messages(thread->nm_thread);
+    messages->parent = self;
+    if (!messages->nm_messages)
+        rb_raise(notmuch_rb_eMemoryError, "out of memory");
+
+    return messagesv;
+}
+
+/*
+ * call-seq: THREAD.matched_messages => fixnum
+ *
+ * Get the number of messages in thread that matched the search
+ */
+VALUE
+notmuch_rb_thread_get_matched_messages(VALUE self)
+{
+    notmuch_rb_thread_t *thread;
+
+    Data_Get_Struct(self, notmuch_rb_thread_t, thread);
+
+    return INT2FIX(notmuch_thread_get_matched_messages(thread->nm_thread));
+}
+
+/*
+ * call-seq: THREAD.authors => String
+ *
+ * Get a comma-separated list of the names of the authors.
+ */
+VALUE
+notmuch_rb_thread_get_authors(VALUE self)
+{
+    const char *authors;
+    notmuch_rb_thread_t *thread;
+
+    Data_Get_Struct(self, notmuch_rb_thread_t, thread);
+
+    authors = notmuch_thread_get_authors(thread->nm_thread);
+    return authors ? rb_str_new2(authors) : Qnil;
+}
+
+/*
+ * call-seq: THREAD.subject => String
+ *
+ * Returns the subject of the thread
+ */
+VALUE
+notmuch_rb_thread_get_subject(VALUE self)
+{
+    const char *subject;
+    notmuch_rb_thread_t *thread;
+
+    Data_Get_Struct(self, notmuch_rb_thread_t, thread);
+
+    subject = notmuch_thread_get_subject(thread->nm_thread);
+    return subject ? rb_str_new2(subject) : Qnil;
+}
+
+/*
+ * call-seq: THREAD.oldest_date => Fixnum
+ *
+ * Get the date of the oldest message in thread.
+ */
+VALUE
+notmuch_rb_thread_get_oldest_date(VALUE self)
+{
+    notmuch_rb_thread_t *thread;
+
+    Data_Get_Struct(self, notmuch_rb_thread_t, thread);
+
+    return UINT2NUM(notmuch_thread_get_oldest_date(thread->nm_thread));
+}
+
+/*
+ * call-seq: THREAD.newest_date => fixnum
+ *
+ * Get the date of the newest message in thread.
+ */
+VALUE
+notmuch_rb_thread_get_newest_date(VALUE self)
+{
+    notmuch_rb_thread_t *thread;
+
+    Data_Get_Struct(self, notmuch_rb_thread_t, thread);
+
+    return UINT2NUM(notmuch_thread_get_newest_date(thread->nm_thread));
+}
+
+/*
+ * call-seq: THREAD.tags => TAGS
+ *
+ * Get a Notmuch::Tags iterator for the tags of the thread
+ */
+VALUE
+notmuch_rb_thread_get_tags(VALUE self)
+{
+    notmuch_rb_thread_t *thread;
+    notmuch_rb_tags_t *tags;
+    VALUE tagsv;
+
+    Data_Get_Struct(self, notmuch_rb_thread_t, thread);
+
+    tagsv = Data_Make_Struct(notmuch_rb_cTags, notmuch_rb_tags_t,
+            notmuch_rb_tags_mark, notmuch_rb_tags_free, tags);
+    tags->nm_tags = notmuch_thread_get_tags(thread->nm_thread);
+    tags->parent = self;
+    if (!tags->nm_tags)
+        rb_raise(notmuch_rb_eMemoryError, "out of memory");
+
+    return tagsv;
+}
diff --git a/bindings/ruby/threads.c b/bindings/ruby/threads.c
new file mode 100644
index 00000000..cee6afbe
--- /dev/null
+++ b/bindings/ruby/threads.c
@@ -0,0 +1,50 @@
+/* The Ruby interface to the notmuch mail library
+ *
+ * Copyright © 2010 Ali Polatel
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Ali Polatel <alip@exherbo.org>
+ */
+
+#include "defs.h"
+
+/* call-seq: THREADS.each {|item| block } => THREADS
+ *
+ * Calls +block+ once for each thread in +self+, passing that element as a
+ * parameter.
+ */
+VALUE
+notmuch_rb_threads_each(VALUE self)
+{
+    notmuch_rb_thread_t *thread;
+    notmuch_rb_threads_t *threads;
+    VALUE threadv;
+
+    Data_Get_Struct(self, notmuch_rb_threads_t, threads);
+    if (!threads->nm_threads)
+        return self;
+
+    for (; notmuch_threads_valid(threads->nm_threads);
+            notmuch_threads_move_to_next(threads->nm_threads))
+    {
+        threadv = Data_Make_Struct(notmuch_rb_cThread, notmuch_rb_thread_t,
+                notmuch_rb_thread_mark, notmuch_rb_thread_free, thread);
+        thread->nm_thread = notmuch_threads_get(threads->nm_threads);
+        thread->threads = self;
+        rb_yield(threadv);
+    }
+
+    return self;
+}