1 /* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
2 /*
3 * anjuta
4 * Copyright (C) James Liggett 2007 <jrliggett@cox.net>
5 *
6 * Portions based on the original Subversion plugin
7 * Copyright (C) Johannes Schmid 2005
8 *
9 * anjuta is free software.
10 *
11 * You may redistribute it and/or modify it under the terms of the
12 * GNU General Public License, as published by the Free Software
13 * Foundation; either version 2 of the License, or (at your option)
14 * any later version.
15 *
16 * anjuta is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
19 * See the GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with anjuta. If not, write to:
23 * The Free Software Foundation, Inc.,
24 * 51 Franklin Street, Fifth Floor
25 * Boston, MA 02110-1301, USA.
26 */
27
28 #include "svn-diff-command.h"
29
30 struct _SvnDiffCommandPriv
31 {
32 GQueue *output;
33 gchar *path;
34 gchar *root_dir;
35 glong revision1;
36 glong revision2;
37 svn_depth_t depth;
38 };
39
40 G_DEFINE_TYPE (SvnDiffCommand, svn_diff_command, SVN_TYPE_COMMAND);
41
42 static void
svn_diff_command_init(SvnDiffCommand * self)43 svn_diff_command_init (SvnDiffCommand *self)
44 {
45 self->priv = g_new0 (SvnDiffCommandPriv, 1);
46 self->priv->output = g_queue_new ();
47 }
48
49 static void
svn_diff_command_finalize(GObject * object)50 svn_diff_command_finalize (GObject *object)
51 {
52 SvnDiffCommand *self;
53 GList *current_line;
54
55 self = SVN_DIFF_COMMAND (object);
56
57 current_line = self->priv->output->head;
58
59 while (current_line)
60 {
61 g_free (current_line->data);
62 current_line = g_list_next (current_line);
63 }
64
65 g_queue_free (self->priv->output);
66 g_free (self->priv->path);
67 g_free (self->priv->root_dir);
68 g_free (self->priv);
69
70 G_OBJECT_CLASS (svn_diff_command_parent_class)->finalize (object);
71 }
72
73 static gboolean
get_full_str(apr_file_t * diff_file,gchar ** line)74 get_full_str (apr_file_t *diff_file, gchar **line)
75 {
76 apr_size_t read_size = 1;
77 gint buf_size = 2;
78 gint cur_size = 0;
79 gchar buf;
80
81 *line = g_new (gchar, buf_size);
82 while (apr_file_read (diff_file, &buf, &read_size) != APR_EOF)
83 {
84 (*line)[cur_size] = buf;
85 cur_size++;
86
87 if (cur_size >= buf_size)
88 {
89 gchar *new_line = g_renew (gchar, *line, buf_size * 2);
90 buf_size *= 2;
91 *line = new_line;
92 }
93
94 if (buf == '\n')
95 {
96 (*line)[cur_size] = 0;
97 return TRUE;
98 }
99 }
100 return FALSE;
101 }
102
103 static guint
svn_diff_command_run(AnjutaCommand * command)104 svn_diff_command_run (AnjutaCommand *command)
105 {
106 SvnDiffCommand *self;
107 SvnCommand *svn_command;
108 svn_opt_revision_t revision1;
109 svn_opt_revision_t revision2;
110 apr_array_header_t *options;
111 apr_file_t *diff_file;
112 gchar file_template[] = "anjuta-svn-diffXXXXXX";
113 gchar *line;
114 svn_error_t *error;
115 apr_off_t offset;
116
117 self = SVN_DIFF_COMMAND (command);
118 svn_command = SVN_COMMAND (self);
119
120 switch (self->priv->revision1)
121 {
122 case SVN_DIFF_REVISION_NONE:
123 /* Treat this as a diff between working copy and base
124 * (show only mods made to the revision of this working copy.) */
125 revision1.kind = svn_opt_revision_base;
126 revision2.kind = svn_opt_revision_working;
127 break;
128 case SVN_DIFF_REVISION_PREVIOUS:
129 /* Diff between selected revision and the one before it.
130 * This is relative to revision2. */
131 revision1.kind = svn_opt_revision_number;
132 revision1.value.number = self->priv->revision2 - 1;
133 revision2.kind = svn_opt_revision_number;
134 revision2.value.number = self->priv->revision2;
135 break;
136 default:
137 /* Diff between two distinct revisions */
138 revision1.kind = svn_opt_revision_number;
139 revision1.value.number = self->priv->revision1;
140 revision2.kind = svn_opt_revision_number;
141 revision2.value.number = self->priv->revision2;
142 break;
143 }
144
145 options = apr_array_make(svn_command_get_pool (SVN_COMMAND (command)),
146 0, sizeof (char *));
147
148 apr_file_mktemp (&diff_file, file_template, 0,
149 svn_command_get_pool (SVN_COMMAND (command)));
150
151 error = svn_client_diff4 (options,
152 self->priv->path,
153 &revision1,
154 self->priv->path,
155 &revision2,
156 self->priv->root_dir,
157 self->priv->depth,
158 FALSE,
159 FALSE,
160 FALSE,
161 SVN_APR_LOCALE_CHARSET,
162 diff_file,
163 NULL,
164 NULL,
165 svn_command_get_client_context (svn_command),
166 svn_command_get_pool (svn_command));
167
168 if (error)
169 {
170 svn_command_set_error (svn_command, error);
171 return 1;
172 }
173
174 offset = 0;
175 apr_file_seek (diff_file, APR_SET, &offset);
176
177 while (get_full_str (diff_file, &line))
178 {
179 anjuta_async_command_lock (ANJUTA_ASYNC_COMMAND (command));
180
181 /* Make sure that we only output UTF-8. We could have done this by
182 * passing in "UTF-8" for header encoding to the diff API, but there
183 * is the possiblity that an external diff program could be used, in
184 * which case that arguement wouldn't do anything. As a workaround,
185 * have the internal diff system return things in the system
186 * charset, and make the (hopefully safe) assumption that any
187 * external diff program also outputs in the current locale. */
188 g_queue_push_tail (self->priv->output,
189 g_locale_to_utf8 (line, -1, NULL, NULL,
190 NULL));
191 anjuta_async_command_unlock (ANJUTA_ASYNC_COMMAND (command));
192
193 g_free (line);
194
195 anjuta_command_notify_data_arrived (command);
196 }
197 apr_file_close (diff_file);
198
199 return 0;
200
201 }
202
203 static void
svn_diff_command_class_init(SvnDiffCommandClass * klass)204 svn_diff_command_class_init (SvnDiffCommandClass *klass)
205 {
206 GObjectClass* object_class = G_OBJECT_CLASS (klass);
207 AnjutaCommandClass *command_class = ANJUTA_COMMAND_CLASS (klass);
208
209 object_class->finalize = svn_diff_command_finalize;
210 command_class->run = svn_diff_command_run;
211 }
212
213 SvnDiffCommand *
svn_diff_command_new(const gchar * path,glong revision1,glong revision2,const gchar * root_dir,gboolean recursive)214 svn_diff_command_new (const gchar *path, glong revision1, glong revision2,
215 const gchar *root_dir, gboolean recursive)
216 {
217 SvnDiffCommand *self;
218
219 self = g_object_new (SVN_TYPE_DIFF_COMMAND, NULL);
220 self->priv->path = svn_command_make_canonical_path (SVN_COMMAND (self),
221 path);
222 self->priv->root_dir = svn_command_make_canonical_path (SVN_COMMAND (self),
223 root_dir);
224 self->priv->revision1 = revision1;
225 self->priv->revision2 = revision2;
226 self->priv->depth = recursive ? svn_depth_infinity : svn_depth_empty;
227
228 return self;
229 }
230
231 void
svn_diff_command_destroy(SvnDiffCommand * self)232 svn_diff_command_destroy (SvnDiffCommand *self)
233 {
234 g_object_unref (self);
235 }
236
237 GQueue *
svn_diff_command_get_output(SvnDiffCommand * self)238 svn_diff_command_get_output (SvnDiffCommand *self)
239 {
240 return self->priv->output;
241 }
242