plugins/git/git-log-message-command.c

   1 /* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
   2 /*
   3  * git-command-test
   4  * Copyright (C) James Liggett 2008 <jrliggett@cox.net>
   5  *
   6  * git-command-test is free software.
   7  *
   8  * You may redistribute it and/or modify it under the terms of the
   9  * GNU General Public License, as published by the Free Software
  10  * Foundation; either version 2 of the License, or (at your option)
  11  * any later version.
  12  *
  13  * git-command-test is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  16  * See the GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with git-command-test.  If not, write to:
  20  *      The Free Software Foundation, Inc.,
  21  *      51 Franklin Street, Fifth Floor
  22  *      Boston, MA  02110-1301, USA.
  23  */
  24
  25 #define COMMITTER_REGEX "^committer"
  26 #define COMMIT_REGEX "^commit"
  27
  28 #include "git-log-message-command.h"
  29
  30 struct _GitLogMessageCommandPriv
  31 {
  32         gchar *sha;
  33         GRegex *committer_regex;
  34         GRegex *commit_regex;
  35         GString *log_message;
  36         gboolean found_committer_line;
  37         gboolean found_message;
  38 };
  39
  40 G_DEFINE_TYPE (GitLogMessageCommand, git_log_message_command, GIT_TYPE_COMMAND);
  41
  42 static void
  43 git_log_message_command_init (GitLogMessageCommand *self)
  44 {
  45         self->priv = g_new0 (GitLogMessageCommandPriv, 1);
  46
  47         self->priv->committer_regex = g_regex_new (COMMITTER_REGEX, 0, 0, NULL);
  48         self->priv->commit_regex = g_regex_new (COMMIT_REGEX, 0, 0, NULL);
  49         self->priv->log_message = g_string_new ("");
  50 }
  51
  52 static void
  53 git_log_message_command_finalize (GObject *object)
  54 {
  55         GitLogMessageCommand *self;
  56
  57         self = GIT_LOG_MESSAGE_COMMAND (object);
  58
  59         g_regex_unref (self->priv->committer_regex);
  60         g_regex_unref (self->priv->commit_regex);
  61         g_string_free (self->priv->log_message, TRUE);
  62
  63         G_OBJECT_CLASS (git_log_message_command_parent_class)->finalize (object);
  64 }
  65
  66 static guint
  67 git_log_message_command_run (AnjutaCommand *command)
  68 {
  69         GitLogMessageCommand *self;
  70         gchar *revision;
  71
  72         self = GIT_LOG_MESSAGE_COMMAND (command);
  73
  74         revision = g_strdup_printf ("%s^..%s", self->priv->sha, self->priv->sha);
  75
  76         git_command_add_arg (GIT_COMMAND (command), "rev-list");
  77         git_command_add_arg (GIT_COMMAND (command), "--pretty=raw");
  78         git_command_add_arg (GIT_COMMAND (command), revision);
  79
  80         g_free (revision);
  81
  82         return 0;
  83 }
  84
  85 static void
  86 git_log_message_command_handle_output (GitCommand *git_command,
  87                                                                            const gchar *output)
  88 {
  89         GitLogMessageCommand *self;
  90
  91         self = GIT_LOG_MESSAGE_COMMAND (git_command);
  92
  93         /* It is possible that we could encounter multiple objects, usually with
  94          * merges. */
  95         if (g_regex_match (self->priv->commit_regex, output, 0, NULL))
  96         {
  97                 self->priv->found_message = FALSE;
  98                 self->priv->found_committer_line = FALSE;
  99         }
 100
 101         if (self->priv->found_message)
 102                 g_string_append (self->priv->log_message, output);
 103
 104         if (self->priv->found_committer_line)
 105                 self->priv->found_message = TRUE;
 106         else if (g_regex_match (self->priv->committer_regex, output, 0, NULL))
 107                 self->priv->found_committer_line = TRUE; /* Skip next line */
 108 }
 109
 110 static void
 111 git_log_message_command_class_init (GitLogMessageCommandClass *klass)
 112 {
 113         GObjectClass* object_class = G_OBJECT_CLASS (klass);
 114         GitCommandClass* parent_class = GIT_COMMAND_CLASS (klass);
 115         AnjutaCommandClass *command_class = ANJUTA_COMMAND_CLASS (klass);
 116
 117         object_class->finalize = git_log_message_command_finalize;
 118         parent_class->output_handler = git_log_message_command_handle_output;
 119         command_class->run = git_log_message_command_run;
 120 }
 121
 122
 123 GitLogMessageCommand *
 124 git_log_message_command_new (const gchar *working_directory, const gchar *sha)
 125 {
 126         GitLogMessageCommand *self;
 127
 128         self = g_object_new (GIT_TYPE_LOG_MESSAGE_COMMAND,
 129                                                  "working-directory", working_directory,
 130                                                  "single-line-output", TRUE,
 131                                                  NULL);
 132
 133         self->priv->sha = g_strdup (sha);
 134
 135         return self;
 136 }
 137
 138 gchar *
 139 git_log_message_command_get_message (GitLogMessageCommand *self)
 140 {
 141         return g_strdup (g_strchomp (self->priv->log_message->str));
 142 }
 143