Desktop
/* $Id: subversion.c,v 1.4 2012/08/31 18:37:09 khorben Exp $ */
/* Copyright (c) 2012 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Browser */
/* 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, version 3 of the License.
*
* 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/>. */
/* TODO:
* - parse SVN's meta-data */
#include <System.h>
#include <ctype.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <libintl.h>
#include "Browser.h"
#define _(string) gettext(string)
#define N_(string) (string)
/* Subversion */
/* private */
/* types */
typedef struct _SVNTask SVNTask;
typedef struct _BrowserPlugin
{
BrowserPluginHelper * helper;
char * filename;
guint source;
/* widgets */
GtkWidget * widget;
GtkWidget * name;
GtkWidget * status;
/* directory */
GtkWidget * directory;
/* file */
GtkWidget * file;
/* additional actions */
GtkWidget * add;
GtkWidget * make;
/* tasks */
SVNTask ** tasks;
size_t tasks_cnt;
} SVN;
struct _SVNTask
{
SVN * svn;
GPid pid;
guint source;
/* stdout */
gint o_fd;
GIOChannel * o_channel;
guint o_source;
/* stderr */
gint e_fd;
GIOChannel * e_channel;
guint e_source;
/* widgets */
GtkWidget * window;
GtkWidget * view;
GtkWidget * statusbar;
guint statusbar_id;
};
/* prototypes */
static SVN * _subversion_init(BrowserPluginHelper * helper);
static void _subversion_destroy(SVN * svn);
static GtkWidget * _subversion_get_widget(SVN * svn);
static void _subversion_refresh(SVN * svn, GList * selection);
static int _subversion_add_task(SVN * svn, char const * title,
char const * directory, char * argv[]);
/* tasks */
static void _subversion_task_delete(SVNTask * task);
static void _subversion_task_set_status(SVNTask * task, char const * status);
static void _subversion_task_close(SVNTask * task);
static void _subversion_task_close_channel(SVNTask * task,
GIOChannel * channel);
/* callbacks */
static void _subversion_on_add(gpointer data);
static void _subversion_on_commit(gpointer data);
static void _subversion_on_diff(gpointer data);
static void _subversion_on_log(gpointer data);
static void _subversion_on_make(gpointer data);
static void _subversion_on_update(gpointer data);
/* tasks */
static gboolean _subversion_task_on_closex(gpointer data);
static void _subversion_task_on_child_watch(GPid pid, gint status,
gpointer data);
static gboolean _subversion_task_on_io_can_read(GIOChannel * channel,
GIOCondition condition, gpointer data);
/* public */
/* variables */
/* plug-in */
BrowserPluginDefinition plugin =
{
N_("Subversion"),
"applications-development",
NULL,
_subversion_init,
_subversion_destroy,
_subversion_get_widget,
_subversion_refresh
};
/* private */
/* functions */
/* subversion_init */
static GtkWidget * _init_button(GtkSizeGroup * group, char const * icon,
char const * label, GCallback callback, gpointer data);
static SVN * _subversion_init(BrowserPluginHelper * helper)
{
SVN * svn;
PangoFontDescription * font;
GtkSizeGroup * group;
GtkSizeGroup * bgroup;
GtkWidget * widget;
if((svn = object_new(sizeof(*svn))) == NULL)
return NULL;
svn->helper = helper;
svn->filename = NULL;
svn->source = 0;
/* widgets */
svn->widget = gtk_vbox_new(FALSE, 4);
font = pango_font_description_new();
pango_font_description_set_weight(font, PANGO_WEIGHT_BOLD);
group = gtk_size_group_new(GTK_SIZE_GROUP_HORIZONTAL);
bgroup = gtk_size_group_new(GTK_SIZE_GROUP_HORIZONTAL);
/* label */
svn->name = gtk_label_new("");
gtk_label_set_ellipsize(GTK_LABEL(svn->name), PANGO_ELLIPSIZE_MIDDLE);
gtk_misc_set_alignment(GTK_MISC(svn->name), 0.0, 0.0);
gtk_widget_modify_font(svn->name, font);
gtk_box_pack_start(GTK_BOX(svn->widget), svn->name, FALSE, TRUE, 0);
svn->status = gtk_label_new("");
gtk_label_set_ellipsize(GTK_LABEL(svn->status), PANGO_ELLIPSIZE_END);
gtk_misc_set_alignment(GTK_MISC(svn->status), 0.0, 0.0);
gtk_box_pack_start(GTK_BOX(svn->widget), svn->status, FALSE, TRUE, 0);
/* directory */
svn->directory = gtk_vbox_new(FALSE, 4);
widget = _init_button(bgroup, GTK_STOCK_INDEX, _("Request diff"),
G_CALLBACK(_subversion_on_diff), svn);
gtk_box_pack_start(GTK_BOX(svn->directory), widget, FALSE, TRUE, 0);
widget = _init_button(bgroup, GTK_STOCK_INDEX, _("View log"),
G_CALLBACK(_subversion_on_log), svn);
gtk_box_pack_start(GTK_BOX(svn->directory), widget, FALSE, TRUE, 0);
widget = _init_button(bgroup, GTK_STOCK_REFRESH, _("Update"),
G_CALLBACK(_subversion_on_update), svn);
gtk_box_pack_start(GTK_BOX(svn->directory), widget, FALSE, TRUE, 0);
widget = _init_button(bgroup, GTK_STOCK_JUMP_TO, _("Commit"),
G_CALLBACK(_subversion_on_commit), svn);
gtk_box_pack_start(GTK_BOX(svn->directory), widget, FALSE, TRUE, 0);
gtk_widget_show_all(svn->directory);
gtk_widget_set_no_show_all(svn->directory, TRUE);
gtk_box_pack_start(GTK_BOX(svn->widget), svn->directory, FALSE, TRUE,
0);
/* file */
svn->file = gtk_vbox_new(FALSE, 4);
widget = _init_button(bgroup, GTK_STOCK_INDEX, _("Request diff"),
G_CALLBACK(_subversion_on_diff), svn);
gtk_box_pack_start(GTK_BOX(svn->file), widget, FALSE, TRUE, 0);
widget = _init_button(bgroup, GTK_STOCK_INDEX, _("View log"),
G_CALLBACK(_subversion_on_log), svn);
gtk_box_pack_start(GTK_BOX(svn->file), widget, FALSE, TRUE, 0);
widget = _init_button(bgroup, GTK_STOCK_REFRESH, _("Update"),
G_CALLBACK(_subversion_on_update), svn);
gtk_box_pack_start(GTK_BOX(svn->file), widget, FALSE, TRUE, 0);
widget = _init_button(bgroup, GTK_STOCK_JUMP_TO, _("Commit"),
G_CALLBACK(_subversion_on_commit), svn);
gtk_box_pack_start(GTK_BOX(svn->file), widget, FALSE, TRUE, 0);
gtk_widget_show_all(svn->file);
gtk_widget_set_no_show_all(svn->file, TRUE);
gtk_box_pack_start(GTK_BOX(svn->widget), svn->file, FALSE, TRUE, 0);
/* additional actions */
svn->add = _init_button(bgroup, GTK_STOCK_ADD, _("Add to repository"),
G_CALLBACK(_subversion_on_add), svn);
gtk_box_pack_start(GTK_BOX(svn->widget), svn->add, FALSE, TRUE, 0);
svn->make = _init_button(bgroup, GTK_STOCK_EXECUTE, _("Run make"),
G_CALLBACK(_subversion_on_make), svn);
gtk_box_pack_start(GTK_BOX(svn->widget), svn->make, FALSE, TRUE, 0);
gtk_widget_show_all(svn->widget);
pango_font_description_free(font);
/* tasks */
svn->tasks = NULL;
svn->tasks_cnt = 0;
return svn;
}
static GtkWidget * _init_button(GtkSizeGroup * group, char const * icon,
char const * label, GCallback callback, gpointer data)
{
GtkWidget * hbox;
GtkWidget * image;
GtkWidget * widget;
char const stock[] = "gtk-";
hbox = gtk_hbox_new(FALSE, 4);
widget = gtk_button_new_with_label(label);
gtk_size_group_add_widget(group, widget);
if(icon != NULL)
{
if(strncmp(icon, stock, sizeof(stock) - 1) == 0)
image = gtk_image_new_from_stock(icon,
GTK_ICON_SIZE_BUTTON);
else
image = gtk_image_new_from_icon_name(icon,
GTK_ICON_SIZE_BUTTON);
gtk_button_set_image(GTK_BUTTON(widget), image);
}
g_signal_connect_swapped(widget, "clicked", callback, data);
gtk_box_pack_start(GTK_BOX(hbox), widget, FALSE, TRUE, 0);
return hbox;
}
/* subversion_destroy */
static void _subversion_destroy(SVN * svn)
{
size_t i;
for(i = 0; i < svn->tasks_cnt; i++)
_subversion_task_delete(svn->tasks[i]);
free(svn->tasks);
if(svn->source != 0)
g_source_remove(svn->source);
object_delete(svn);
}
/* subversion_get_widget */
static GtkWidget * _subversion_get_widget(SVN * svn)
{
return svn->widget;
}
/* subversion_refresh */
static void _refresh_dir(SVN * svn);
static void _refresh_make(SVN * svn, struct stat * st);
static void _refresh_status(SVN * svn, char const * status);
static void _subversion_refresh(SVN * svn, GList * selection)
{
char * path = (selection != NULL) ? selection->data : NULL;
struct stat st;
gchar * p;
if(svn->source != 0)
g_source_remove(svn->source);
free(svn->filename);
svn->filename = NULL;
if(lstat(path, &st) != 0)
return;
if((svn->filename = strdup(path)) == NULL)
return;
p = g_filename_display_basename(path);
gtk_label_set_text(GTK_LABEL(svn->name), p);
g_free(p);
_refresh_status(svn, NULL);
gtk_widget_hide(svn->directory);
gtk_widget_hide(svn->file);
gtk_widget_hide(svn->add);
gtk_widget_hide(svn->make);
if(S_ISDIR(st.st_mode))
_refresh_dir(svn);
_refresh_make(svn, &st);
}
static void _refresh_dir(SVN * svn)
{
char const dir[] = ".svn";
size_t len = strlen(svn->filename);
char * p;
struct stat st;
/* consider ".svn" folders like their parent */
if((len = strlen(svn->filename)) >= 4 && strcmp(&svn->filename[len - 4],
"/.svn") == 0)
svn->filename[len - 4] = '\0';
/* check if it is a SVN repository */
len = strlen(svn->filename) + sizeof(dir) + 1;
if((p = malloc(len)) != NULL)
{
snprintf(p, len, "%s/%s", svn->filename, dir);
if(lstat(p, &st) != 0)
{
_refresh_status(svn, _("Not a Subversion repository"));
free(p);
return;
}
}
free(p);
gtk_widget_show(svn->directory);
}
static void _refresh_make(SVN * svn, struct stat * st)
{
gboolean show = FALSE;
gchar * dirname;
char const * makefile[] = { "Makefile", "makefile", "GNUmakefile" };
size_t i;
gchar * p;
dirname = S_ISDIR(st->st_mode) ? g_strdup(svn->filename)
: g_path_get_dirname(svn->filename);
for(i = 0; show == FALSE && i < sizeof(makefile) / sizeof(*makefile);
i++)
{
p = g_strdup_printf("%s/%s", dirname, makefile[i]);
show = (lstat(p, st) == 0) ? TRUE : FALSE;
g_free(p);
}
g_free(dirname);
if(show)
gtk_widget_show(svn->make);
}
static void _refresh_status(SVN * svn, char const * status)
{
if(status == NULL)
status = "";
gtk_label_set_text(GTK_LABEL(svn->status), status);
}
/* svn_add_task */
static int _subversion_add_task(SVN * svn, char const * title,
char const * directory, char * argv[])
{
BrowserPluginHelper * helper = svn->helper;
SVNTask ** p;
SVNTask * task;
GSpawnFlags flags = G_SPAWN_SEARCH_PATH | G_SPAWN_DO_NOT_REAP_CHILD;
gboolean res;
GError * error = NULL;
PangoFontDescription * font;
char buf[256];
GtkWidget * vbox;
GtkWidget * widget;
if((p = realloc(svn->tasks, sizeof(*p) * (svn->tasks_cnt + 1))) == NULL)
return -helper->error(helper->browser, strerror(errno), 1);
svn->tasks = p;
if((task = object_new(sizeof(*task))) == NULL)
return -helper->error(helper->browser, error_get(), 1);
task->svn = svn;
res = g_spawn_async_with_pipes(directory, argv, NULL, flags, NULL, NULL,
&task->pid, NULL, &task->o_fd, &task->e_fd, &error);
if(res != TRUE)
{
helper->error(helper->browser, error->message, 1);
g_error_free(error);
object_delete(task);
return -1;
}
svn->tasks[svn->tasks_cnt++] = task;
/* widgets */
font = pango_font_description_new();
pango_font_description_set_family(font, "monospace");
task->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size(GTK_WINDOW(task->window), 600, 400);
#if GTK_CHECK_VERSION(2, 6, 0)
gtk_window_set_icon_name(GTK_WINDOW(task->window), plugin.icon);
#endif
snprintf(buf, sizeof(buf), "%s - %s (%s)", _("Subversion"), title,
directory);
gtk_window_set_title(GTK_WINDOW(task->window), buf);
g_signal_connect_swapped(task->window, "delete-event", G_CALLBACK(
_subversion_task_on_closex), task);
vbox = gtk_vbox_new(FALSE, 0);
widget = gtk_scrolled_window_new(NULL, NULL);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(widget),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
task->view = gtk_text_view_new();
gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(task->view), FALSE);
gtk_text_view_set_editable(GTK_TEXT_VIEW(task->view), FALSE);
gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(task->view),
GTK_WRAP_WORD_CHAR);
gtk_widget_modify_font(task->view, font);
gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(widget),
task->view);
gtk_box_pack_start(GTK_BOX(vbox), widget, TRUE, TRUE, 0);
task->statusbar = gtk_statusbar_new();
task->statusbar_id = 0;
gtk_box_pack_start(GTK_BOX(vbox), task->statusbar, FALSE, TRUE, 0);
gtk_container_add(GTK_CONTAINER(task->window), vbox);
gtk_widget_show_all(task->window);
pango_font_description_free(font);
/* events */
task->source = g_child_watch_add(task->pid,
_subversion_task_on_child_watch, task);
task->o_channel = g_io_channel_unix_new(task->o_fd);
if((g_io_channel_set_encoding(task->o_channel, NULL, &error))
!= G_IO_STATUS_NORMAL)
{
helper->error(helper->browser, error->message, 1);
g_error_free(error);
}
task->o_source = g_io_add_watch(task->o_channel, G_IO_IN,
_subversion_task_on_io_can_read, task);
task->e_channel = g_io_channel_unix_new(task->e_fd);
if((g_io_channel_set_encoding(task->e_channel, NULL, &error))
!= G_IO_STATUS_NORMAL)
{
helper->error(helper->browser, error->message, 1);
g_error_free(error);
}
task->e_source = g_io_add_watch(task->e_channel, G_IO_IN,
_subversion_task_on_io_can_read, task);
_subversion_task_set_status(task, _("Running command..."));
return 0;
}
/* tasks */
/* svn_task_delete */
static void _subversion_task_delete(SVNTask * task)
{
_subversion_task_close(task);
if(task->source != 0)
g_source_remove(task->source);
task->source = 0;
gtk_widget_destroy(task->window);
object_delete(task);
}
/* svn_task_set_status */
static void _subversion_task_set_status(SVNTask * task, char const * status)
{
GtkStatusbar * sb = GTK_STATUSBAR(task->statusbar);
if(task->statusbar_id != 0)
gtk_statusbar_remove(sb, gtk_statusbar_get_context_id(sb, ""),
task->statusbar_id);
task->statusbar_id = gtk_statusbar_push(sb,
gtk_statusbar_get_context_id(sb, ""), status);
}
/* svn_task_close */
static void _subversion_task_close(SVNTask * task)
{
_subversion_task_close_channel(task, task->o_channel);
_subversion_task_close_channel(task, task->e_channel);
}
/* svn_task_close */
static void _subversion_task_close_channel(SVNTask * task, GIOChannel * channel)
{
if(channel != NULL && channel == task->o_channel)
{
if(task->o_source != 0)
g_source_remove(task->o_source);
task->o_source = 0;
g_io_channel_shutdown(task->o_channel, FALSE, NULL);
g_io_channel_unref(task->o_channel);
task->o_channel = NULL;
}
if(channel != NULL && task->e_channel != NULL)
{
if(task->e_source != 0)
g_source_remove(task->e_source);
task->e_source = 0;
g_io_channel_shutdown(task->e_channel, FALSE, NULL);
g_io_channel_unref(task->e_channel);
task->e_channel = NULL;
}
}
/* callbacks */
/* svn_on_add */
static gboolean _add_is_binary(char const * type);
static void _subversion_on_add(gpointer data)
{
SVN * svn = data;
gchar * dirname;
gchar * basename;
char * argv[] = { "svn", "add", "--", NULL, NULL, NULL };
Mime * mime;
char const * type;
if(svn->filename == NULL)
return;
dirname = g_path_get_dirname(svn->filename);
basename = g_path_get_basename(svn->filename);
argv[3] = basename;
mime = svn->helper->get_mime(svn->helper->browser);
type = mime_type(mime, svn->filename);
if(_add_is_binary(type))
{
argv[4] = argv[3];
argv[3] = argv[2];
argv[2] = "-kb";
}
_subversion_add_task(svn, "svn add", dirname, argv);
g_free(basename);
g_free(dirname);
}
static gboolean _add_is_binary(char const * type)
{
char const text[] = "text/";
char const * types[] = { "application/x-perl",
"application/x-shellscript",
"application/xml",
"application/xslt+xml" };
size_t i;
if(type == NULL)
return TRUE;
if(strncmp(text, type, sizeof(text) - 1) == 0)
return FALSE;
for(i = 0; i < sizeof(types) / sizeof(*types); i++)
if(strcmp(types[i], type) == 0)
return FALSE;
return TRUE;
}
/* svn_on_commit */
static void _subversion_on_commit(gpointer data)
{
SVN * svn = data;
struct stat st;
gchar * dirname;
gchar * basename;
char * argv[] = { "svn", "commit", "--", NULL, NULL };
if(svn->filename == NULL || lstat(svn->filename, &st) != 0)
return;
dirname = S_ISDIR(st.st_mode) ? g_strdup(svn->filename)
: g_path_get_dirname(svn->filename);
basename = S_ISDIR(st.st_mode) ? NULL
: g_path_get_basename(svn->filename);
argv[3] = basename;
_subversion_add_task(svn, "svn commit", dirname, argv);
g_free(basename);
g_free(dirname);
}
/* svn_on_diff */
static void _subversion_on_diff(gpointer data)
{
SVN * svn = data;
struct stat st;
gchar * dirname;
gchar * basename;
char * argv[] = { "svn", "diff", "--", NULL, NULL };
if(svn->filename == NULL || lstat(svn->filename, &st) != 0)
return;
dirname = S_ISDIR(st.st_mode) ? g_strdup(svn->filename)
: g_path_get_dirname(svn->filename);
basename = S_ISDIR(st.st_mode) ? NULL
: g_path_get_basename(svn->filename);
argv[3] = basename;
_subversion_add_task(svn, "svn diff", dirname, argv);
g_free(basename);
g_free(dirname);
}
/* svn_on_log */
static void _subversion_on_log(gpointer data)
{
SVN * svn = data;
struct stat st;
gchar * dirname;
gchar * basename;
char * argv[] = { "svn", "log", "--", NULL, NULL };
if(svn->filename == NULL || lstat(svn->filename, &st) != 0)
return;
dirname = S_ISDIR(st.st_mode) ? g_strdup(svn->filename)
: g_path_get_dirname(svn->filename);
basename = S_ISDIR(st.st_mode) ? NULL
: g_path_get_basename(svn->filename);
argv[3] = basename;
_subversion_add_task(svn, "svn log", dirname, argv);
g_free(basename);
g_free(dirname);
}
/* svn_on_make */
static void _subversion_on_make(gpointer data)
{
SVN * svn = data;
struct stat st;
gchar * dirname;
char * argv[] = { "make", NULL };
if(svn->filename == NULL || lstat(svn->filename, &st) != 0)
return;
dirname = S_ISDIR(st.st_mode) ? g_strdup(svn->filename)
: g_path_get_dirname(svn->filename);
_subversion_add_task(svn, "make", dirname, argv);
g_free(dirname);
}
/* svn_on_update */
static void _subversion_on_update(gpointer data)
{
SVN * svn = data;
struct stat st;
gchar * dirname;
gchar * basename;
char * argv[] = { "svn", "update", "--", NULL, NULL };
if(svn->filename == NULL || lstat(svn->filename, &st) != 0)
return;
dirname = S_ISDIR(st.st_mode) ? g_strdup(svn->filename)
: g_path_get_dirname(svn->filename);
basename = S_ISDIR(st.st_mode) ? NULL
: g_path_get_basename(svn->filename);
argv[3] = basename;
_subversion_add_task(svn, "svn update", dirname, argv);
g_free(basename);
g_free(dirname);
}
/* svn_task_on_closex */
static gboolean _subversion_task_on_closex(gpointer data)
{
SVNTask * task = data;
gtk_widget_hide(task->window);
_subversion_task_close(task);
/* FIXME really implement */
return TRUE;
}
/* svn_task_on_child_watch */
static void _subversion_task_on_child_watch(GPid pid, gint status,
gpointer data)
{
SVNTask * task = data;
char buf[256];
task->source = 0;
if(WIFEXITED(status))
{
snprintf(buf, sizeof(buf),
_("Command exited with error code %d"),
WEXITSTATUS(status));
_subversion_task_set_status(task, buf);
}
else if(WIFSIGNALED(status))
{
snprintf(buf, sizeof(buf), _("Command exited with signal %d"),
WTERMSIG(status));
_subversion_task_set_status(task, buf);
}
g_spawn_close_pid(pid);
}
/* svn_task_on_io_can_read */
static gboolean _subversion_task_on_io_can_read(GIOChannel * channel,
GIOCondition condition, gpointer data)
{
SVNTask * task = data;
SVN * svn = task->svn;
BrowserPluginHelper * helper = svn->helper;
char buf[256];
gsize cnt = 0;
GError * error = NULL;
GIOStatus status;
GtkTextBuffer * tbuf;
GtkTextIter iter;
if(condition != G_IO_IN)
return FALSE;
if(channel != task->o_channel && channel != task->e_channel)
return FALSE;
status = g_io_channel_read_chars(channel, buf, sizeof(buf), &cnt,
&error);
if(cnt > 0)
{
tbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(task->view));
gtk_text_buffer_get_end_iter(tbuf, &iter);
gtk_text_buffer_insert(tbuf, &iter, buf, cnt);
}
switch(status)
{
case G_IO_STATUS_NORMAL:
break;
case G_IO_STATUS_ERROR:
helper->error(helper->browser, error->message, 1);
g_error_free(error);
case G_IO_STATUS_EOF:
default: /* should not happen... */
_subversion_task_close_channel(task, channel);
return FALSE;
}
return TRUE;
}