add command /history

6 files changed, 132 insertions, 59 deletions

diff --git a/src/common/command.c b/src/common/command.c
index 57b8f47a9..fb83a89ef 100644
--- a/src/common/command.c
+++ b/src/common/command.c
@@ -73,6 +73,12 @@ t_weechat_command weechat_commands[] =
   { "help", N_("display help about commands"),
     N_("[command]"), N_("command: name of a WeeChat or IRC command"),
     0, 1, weechat_cmd_help, NULL },
+  { "history", N_("show buffer command history"),
+    N_("[clear | value]"),
+    N_("clear: clear history\n"
+       "value: number of history entries to show"
+        ),
+    0, 1, weechat_cmd_history, NULL },
   { "ignore", N_("ignore IRC messages and/or hosts"),
     N_("[mask [[type | command] [channel [server]]]]"),
     N_("   mask: nick or host mask to ignore\n"
@@ -1585,6 +1591,46 @@ weechat_cmd_help (int argc, char **argv)
 }
 
 /*
+ * weechat_cmd_history: display current buffer history
+ */
+
+int
+weechat_cmd_history (int argc, char **argv) {
+
+    t_history *p;
+    int n;
+    int n_total;
+    int n_user = cfg_history_display_default;
+
+    if (argc == 1)
+    {
+        if (ascii_strcasecmp (argv[0], "clear") == 0)
+        {
+            history_buffer_free (gui_current_window->buffer);
+            return 0;
+        }
+        else
+            n_user = atoi (argv[0]);
+    }
+
+    if (gui_current_window->buffer->history != NULL)
+    {
+        for(n_total = 1, p = gui_current_window->buffer->history; p->next_history != NULL; p = p->next_history, n_total++);
+        for(n=0; p != NULL; p=p->prev_history, n++)
+        {
+            if (n_user > 0 && (n_total-n_user) > n)
+                continue;
+            irc_display_prefix (NULL, gui_current_window->buffer,
+                                PREFIX_INFO);
+            gui_printf_nolog (gui_current_window->buffer,
+                              "%s\n", p->text);
+        }
+    }
+
+    return 0;
+}
+
+/*
  * weechat_cmd_ignore_display: display an ignore entry
  */
 
diff --git a/src/common/command.h b/src/common/command.h
index cfac06ebf..4369a4251 100644
--- a/src/common/command.h
+++ b/src/common/command.h
@@ -71,6 +71,7 @@ extern int weechat_cmd_connect (int, char **);
 extern int weechat_cmd_debug (int, char **);
 extern int weechat_cmd_disconnect (int, char **);
 extern int weechat_cmd_help (int, char **);
+extern int weechat_cmd_history (int, char **);
 extern void weechat_cmd_ignore_display (char *, t_irc_ignore *);
 extern int weechat_cmd_ignore (int, char **);
 extern int weechat_cmd_key (char *);
diff --git a/src/common/completion.c b/src/common/completion.c
index f4fa2a286..22f7f868a 100644
--- a/src/common/completion.c
+++ b/src/common/completion.c
@@ -230,6 +230,16 @@ completion_build_list (t_completion *completion, void *channel)
 #endif
         return;
     }
+    if (ascii_strcasecmp (completion->base_command, "history") == 0)
+    {
+        if (completion->base_command_arg == 1)
+            weelist_add (&completion->completion_list,
+                         &completion->last_completion,
+                         "clear");
+        else
+            completion_stop (completion);
+        return;
+    }
     if (ascii_strcasecmp (completion->base_command, "ignore") == 0)
     {
         /* arg 1: nicks of current channel and "*" */
diff --git a/src/common/history.c b/src/common/history.c
index 980b0d1e5..4f1113eec 100644
--- a/src/common/history.c
+++ b/src/common/history.c
@@ -73,67 +73,77 @@ void
 history_add (void *buffer, char *string)
 {
     t_history *new_history, *ptr_history;
-    
-    /* add history to global history */
-    new_history = (t_history *)malloc (sizeof (t_history));
-    if (new_history)
-    {
-        new_history->text = strdup (string);
-        if (cfg_log_hide_nickserv_pwd)
-            history_hide_password (new_history->text);
-        
-        if (history_global)
-            history_global->prev_history = new_history;
-        else
-            history_global_last = new_history;
-        new_history->next_history = history_global;
-        new_history->prev_history = NULL;
-        history_global = new_history;
-        num_history_global++;
-        
-        /* remove one command if necessary */
-        if ((cfg_history_max_commands > 0)
-            && (num_history_global > cfg_history_max_commands))
-        {
-            ptr_history = history_global_last->prev_history;
-            history_global_last->prev_history->next_history = NULL;
-            if (history_global_last->text)
-                free (history_global_last->text);
-            free (history_global_last);
-            history_global_last = ptr_history;
-            num_history_global--;
-        }
+
+    if ( !history_global
+         || ( history_global
+              && ascii_strcasecmp (history_global->text, string) != 0))
+    {    
+	/* add history to global history */
+	new_history = (t_history *)malloc (sizeof (t_history));
+	if (new_history)
+	{
+	    new_history->text = strdup (string);
+	    if (cfg_log_hide_nickserv_pwd)
+		history_hide_password (new_history->text);
+	    
+	    if (history_global)
+		history_global->prev_history = new_history;
+	    else
+		history_global_last = new_history;
+	    new_history->next_history = history_global;
+	    new_history->prev_history = NULL;
+	    history_global = new_history;
+	    num_history_global++;
+	    
+	    /* remove one command if necessary */
+	    if ((cfg_history_max_commands > 0)
+		&& (num_history_global > cfg_history_max_commands))
+	    {
+		ptr_history = history_global_last->prev_history;
+		history_global_last->prev_history->next_history = NULL;
+		if (history_global_last->text)
+		    free (history_global_last->text);
+		free (history_global_last);
+		history_global_last = ptr_history;
+		num_history_global--;
+	    }
+	}
     }
     
-    /* add history to local history */
-    new_history = (t_history *)malloc (sizeof (t_history));
-    if (new_history)
-    {
-        new_history->text = strdup (string);
-        if (cfg_log_hide_nickserv_pwd)
-            history_hide_password (new_history->text);
-        
-        if (((t_gui_buffer *)(buffer))->history)
-            ((t_gui_buffer *)(buffer))->history->prev_history = new_history;
-        else
-            ((t_gui_buffer *)(buffer))->last_history = new_history;
-        new_history->next_history = ((t_gui_buffer *)(buffer))->history;
-        new_history->prev_history = NULL;
-        ((t_gui_buffer *)buffer)->history = new_history;
-        ((t_gui_buffer *)(buffer))->num_history++;
-        
-        /* remove one command if necessary */
-        if ((cfg_history_max_commands > 0)
-            && (((t_gui_buffer *)(buffer))->num_history > cfg_history_max_commands))
-        {
-            ptr_history = ((t_gui_buffer *)buffer)->last_history->prev_history;
-            ((t_gui_buffer *)buffer)->last_history->prev_history->next_history = NULL;
-            if (((t_gui_buffer *)buffer)->last_history->text)
-                free (((t_gui_buffer *)buffer)->last_history->text);
-            free (((t_gui_buffer *)buffer)->last_history);
-            ((t_gui_buffer *)buffer)->last_history = ptr_history;
-            ((t_gui_buffer *)(buffer))->num_history++;
-        }
+    if ( !((t_gui_buffer *)(buffer))->history
+         || ( ((t_gui_buffer *)(buffer))->history
+              && ascii_strcasecmp (((t_gui_buffer *)(buffer))->history->text, string) != 0))
+    {	
+	/* add history to local history */
+	new_history = (t_history *)malloc (sizeof (t_history));
+	if (new_history)
+	{
+	    new_history->text = strdup (string);
+	    if (cfg_log_hide_nickserv_pwd)
+		history_hide_password (new_history->text);
+	    
+	    if (((t_gui_buffer *)(buffer))->history)
+		((t_gui_buffer *)(buffer))->history->prev_history = new_history;
+	    else
+		((t_gui_buffer *)(buffer))->last_history = new_history;
+	    new_history->next_history = ((t_gui_buffer *)(buffer))->history;
+	    new_history->prev_history = NULL;
+	    ((t_gui_buffer *)buffer)->history = new_history;
+	    ((t_gui_buffer *)(buffer))->num_history++;
+	    
+	    /* remove one command if necessary */
+	    if ((cfg_history_max_commands > 0)
+		&& (((t_gui_buffer *)(buffer))->num_history > cfg_history_max_commands))
+	    {
+		ptr_history = ((t_gui_buffer *)buffer)->last_history->prev_history;
+		((t_gui_buffer *)buffer)->last_history->prev_history->next_history = NULL;
+		if (((t_gui_buffer *)buffer)->last_history->text)
+		    free (((t_gui_buffer *)buffer)->last_history->text);
+		free (((t_gui_buffer *)buffer)->last_history);
+		((t_gui_buffer *)buffer)->last_history = ptr_history;
+		((t_gui_buffer *)(buffer))->num_history++;
+	    }
+	}
     }
 }
 
diff --git a/src/common/weeconfig.c b/src/common/weeconfig.c
index f04b9c967..14c26a141 100644
--- a/src/common/weeconfig.c
+++ b/src/common/weeconfig.c
@@ -571,6 +571,7 @@ t_config_option weechat_options_colors[] =
 
 int cfg_history_max_lines;
 int cfg_history_max_commands;
+int cfg_history_display_default;
 
 t_config_option weechat_options_history[] =
 { { "history_max_lines", N_("max lines in history (per window)"),
@@ -582,6 +583,10 @@ t_config_option weechat_options_history[] =
     N_("maximum number of user commands in history (0 = unlimited)"),
     OPTION_TYPE_INT, 0, INT_MAX, 100,
     NULL, NULL, &cfg_history_max_commands, NULL, &config_change_noop },
+  { "history_display_default", N_("max commands to display"),
+    N_("maximum number of commands to display by default in history listing (0 = unlimited)"),
+    OPTION_TYPE_INT, 0, INT_MAX, 5,
+    NULL, NULL, &cfg_history_display_default, NULL, &config_change_noop },
   { NULL, NULL, NULL, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL }
 };
 
diff --git a/src/common/weeconfig.h b/src/common/weeconfig.h
index a269d6b68..b0413c3e1 100644
--- a/src/common/weeconfig.h
+++ b/src/common/weeconfig.h
@@ -169,6 +169,7 @@ extern int cfg_col_dcc_aborted;
 
 extern int cfg_history_max_lines;
 extern int cfg_history_max_commands;
+extern int cfg_history_display_default;
 
 extern int cfg_log_auto_server;
 extern int cfg_log_auto_channel;