d.mon: store default render command program in a separate file

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@65202 15284696-431f-4ddb-bdfa-cd5b030d7da7

display/d.mon/Makefile

@@ -2,6 +2,8 @@ MODULE_TOPDIR = ../..
 
 PGM = d.mon
 
+ETCFILES = render_cmd.py
+
 LIBES = $(GISLIB) $(DISPLAYLIB)
 DEPENDENCIES= $(GISDEP) $(DISPLAYDEP)
 

display/d.mon/render_cmd.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python
+import os
+import sys
+
+from grass.script import core as grass
+from grass.script import task as gtask
+
+cmd, dcmd = gtask.cmdstring_to_tuple(sys.argv[1])
+if not cmd or cmd == 'd.mon':
+    sys.exit(0)
+
+path = os.path.dirname(os.path.abspath(__file__))
+cmd_file = os.path.join(path, 'cmd')
+env_file = os.path.join(path, 'env')
+
+# read environment variables from file
+fd = open(env_file, 'r')
+if fd is None:
+    grass.fatal("Unable to open file '%s'" % env_file)
+lines = fd.readlines()
+for l in lines:
+    if l.startswith('#'):
+         continue
+    k, v = l.rstrip('\n').split('#', 1)[0].strip().split('=', 1)
+    os.environ[k] = v
+fd.close()
+
+# run display command
+try:
+    grass.run_command(cmd, **dcmd)
+except Exception as e:
+    sys.exit("ERROR: %s" % e)
+
+# update cmd file
+ignoredCmd = ('d.colorlist', 'd.font', 'd.fontlist',
+              'd.frame', 'd.info', 'd.mon', 'd.out.file',
+              'd.redraw', 'd.to.rast', 'd.what.rast',
+              'd.what.vect', 'd.where')
+if cmd not in ignoredCmd:
+    mode = 'w' if cmd == 'd.erase' else 'a'
+    # update cmd file
+    fd = open(cmd_file, mode)
+    if fd is None:
+        grass.fatal("Unable to open file '%s'" % cmd_file)
+    if mode == 'a':
+        fd.write(sys.argv[1])
+        fd.write('\n')
+    else:
+         fd.write('')
+    fd.close()
+
+sys.exit(0)

display/d.mon/start.c

@@ -110,8 +110,7 @@ int start_mon(const char *name, const char *output, int select,
     char *mon_path;
     char *out_file, *env_file, *cmd_file;
     char  buf[1024];
-    char file_path[GPATH_MAX];
-    char *pycode;
+    char file_path[GPATH_MAX], render_cmd_path[GPATH_MAX];
     int  fd;
 
     if (check_mon(name)) {
@@ -136,55 +135,11 @@ int start_mon(const char *name, const char *output, int select,
     cmd_file = G_store(file_path);
 
     /* create py file (renderer) */
+    sprintf(render_cmd_path, "%s/etc/d.mon/render_cmd.py", getenv("GISBASE"));
     G_file_name(file_path, mon_path, "render.py", G_mapset());
     G_debug(1, "Monitor name=%s, pyfile = %s", name, file_path);
-    fd = creat(file_path, 0666);
-    G_asprintf(&pycode,
-               "#!/usr/bin/env python\n\n"
-               "import os\n"
-               "import sys\n\n"
-               "from grass.script import core as grass\n"
-               "from grass.script import task as gtask\n\n"
-               "cmd, dcmd = gtask.cmdstring_to_tuple(sys.argv[1])\n"
-               "if not cmd or cmd == 'd.mon':\n"
-               "    sys.exit(0)\n\n"
-               "ignoredCmd = ('d.colorlist', 'd.font', 'd.fontlist',\n"
-               "              'd.frame', 'd.info', 'd.mon', 'd.out.file',\n"
-               "              'd.redraw', 'd.to.rast', 'd.what.rast',\n"
-               "              'd.what.vect', 'd.where')\n"
-               "if cmd not in ignoredCmd:\n"
-               "    mode = 'w' if cmd == 'd.erase' else 'a'\n\n"
-               "    # update cmd file\n"
-               "    fd = open('%s', mode)\n"
-               "    if fd is None:\n"
-               "        grass.fatal(\"Unable to open file '%s'\")\n"
-               "    if mode == 'a':\n"
-               "        fd.write(sys.argv[1])\n"
-               "        fd.write('\\n')\n"
-               "    else:\n"
-               "         fd.write('')\n"
-               "    fd.close()\n\n"
-               "# read env file\n"
-               "fd = open('%s', 'r')\n"
-               "if fd is None:\n"
-               "    grass.fatal(\"Unable to open file '%s'\")\n"
-               "lines = fd.readlines()\n"
-               "for l in lines:\n"
-               "    if l.startswith('#'):\n"
-               "         continue\n"
-               "    k, v = l.rstrip('\\n').split('#', 1)[0].strip().split('=', 1)\n"
-               "    os.environ[k] = v\n"
-               "fd.close()\n\n"
-               "# run display command\n"
-               "try:\n"
-               "    grass.run_command(cmd, **dcmd)\n"
-               "except:\n"
-               "    pass\n\n"
-               "sys.exit(0)\n",
-               cmd_file, cmd_file, env_file, env_file);
-    write(fd, pycode, strlen(pycode));
-    G_free(pycode);
-    close(fd);
+    if (1 != G_copy_file(render_cmd_path, file_path))
+        G_fatal_error(_("Unable to copy render command file"));
 
     /* start monitor */
     if (strncmp(name, "wx", 2) == 0)