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201
by Tony George
Updated project structure |
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using TeeJee.Logging; |
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using TeeJee.FileSystem; |
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//using TeeJee.JSON;
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using TeeJee.ProcessHelper; |
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//using TeeJee.Multimedia;
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//using TeeJee.System;
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using TeeJee.Misc; |
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public class CronTab : GLib.Object { |
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public static string crontab_read_all(string user_name = ""){ |
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string std_out, std_err; |
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var cmd = "crontab -l"; |
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if (user_name.length > 0){ |
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cmd += " -u %s".printf(user_name); |
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}
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log_debug(cmd); |
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int ret_val = exec_sync(cmd, out std_out, out std_err); |
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if (ret_val != 0){ |
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log_debug(_("Failed to read cron tab")); |
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return ""; |
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}
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else{ |
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return std_out; |
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}
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}
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public static bool add_job(string entry){ |
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// read crontab file
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string tab = crontab_read_all(); |
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var lines = new Gee.ArrayList<string>(); |
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foreach(string line in tab.split("\n")){ |
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lines.add(line); |
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}
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// check if entry exists
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foreach(string line in lines){ |
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if (line == entry){ |
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return true; // return |
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}
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}
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// append entry
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lines.add(entry); |
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// create new tab
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string tab_new = ""; |
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foreach(string line in lines){ |
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if (line.length > 0){ |
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tab_new += "%s\n".printf(line); |
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}
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}
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// write temp crontab file
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string temp_file = get_temp_file_path(); |
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file_write(temp_file, tab_new); |
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// install crontab file
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var cmd = "crontab \"%s\"".printf(temp_file); |
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int status = exec_sync(cmd); |
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if (status != 0){ |
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log_error(_("Failed to add cron job") + ": %s".printf(entry)); |
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return false; |
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}
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else{ |
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log_msg(_("Cron job added") + ": %s".printf(entry)); |
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return true; |
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}
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}
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public static bool remove_job(string entry){ |
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// read crontab file
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string tab = crontab_read_all(); |
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var lines = new Gee.ArrayList<string>(); |
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foreach(string line in tab.split("\n")){ |
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lines.add(line); |
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}
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// check if entry exists
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bool found = false; |
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for(int i=0; i < lines.size; i++){ |
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string line = lines[i]; |
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if (line != null){ |
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line = line.strip(); |
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}
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if (line == entry){ |
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lines.remove(line); |
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found = true; |
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}
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}
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if (!found){ |
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return true; |
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}
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// create new tab
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string tab_new = ""; |
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foreach(string line in lines){ |
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if (line.length > 0){ |
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tab_new += "%s\n".printf(line); |
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}
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}
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// write temp crontab file
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string temp_file = get_temp_file_path(); |
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file_write(temp_file, tab_new); |
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// install crontab file
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var cmd = "crontab \"%s\"".printf(temp_file); |
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int status = exec_sync(cmd); |
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if (status != 0){ |
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log_error(_("Failed to remove cron job") + ": %s".printf(entry)); |
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return false; |
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}
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else{ |
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log_msg(_("Cron job removed") + ": %s".printf(entry)); |
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return true; |
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}
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}
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public static bool install(string file_path, string user_name = ""){ |
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if (!file_exists(file_path)){ |
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log_error(_("File not found") + ": %s".printf(file_path)); |
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return false; |
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}
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var cmd = "crontab"; |
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if (user_name.length > 0){ |
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cmd += " -u %s".printf(user_name); |
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}
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cmd += " \"%s\"".printf(file_path); |
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log_debug(cmd); |
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int status = exec_sync(cmd); |
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if (status != 0){ |
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log_error(_("Failed to install crontab file") + ": %s".printf(file_path)); |
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return false; |
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}
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else{ |
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log_msg(_("crontab file installed") + ": %s".printf(file_path)); |
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return true; |
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}
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}
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public static bool export(string file_path, string user_name = ""){ |
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if (file_exists(file_path)){ |
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file_delete(file_path); |
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}
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bool ok = file_write(file_path, crontab_read_all(user_name)); |
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if (!ok){ |
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log_error(_("Failed to export crontab file") + ": %s".printf(file_path)); |
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return false; |
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}
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else{ |
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log_msg(_("crontab file exported") + ": %s".printf(file_path)); |
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return true; |
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}
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}
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public static bool import(string file_path, string user_name = ""){ |
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return install(file_path, user_name); |
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}
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}
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