clockd: command line timer

clockd

#!/usr/bin/php
<?php

// make sure that they are in a shell
if (empty($_SERVER['SHELL'])) {
	die('Shells only please');
}

$configFile = $_SERVER['HOME'] . '/.clockd';
main($argv);

function getTheFile () {
	global $configFile;
	return $configFile;
}

function main ($args) {
	if (count($args) == 1) {
		printUsage();
		exit();
	} else {
		if ($args[1] == 'status') {
			showStatus();
		} else if ($args[1] == 'stop') {
			stopCurrent();
		} else if ($args[1] == 'summary') {
			showSummary();
		} else if ($args[1] == 'start') {
			if (count($args) != 3) {
				printUsage();
				exit();
			}
			startProject($args[2]);
		}
	}
}

function println ($str) {
	echo $str;
	echo "\n";
}

function printUsage () {
	println('Usage: ' . ($argv[0]) . ' <command> [options]');
	echo "\n";
	println('Some common commands are:');
	println('  status            show current status');
	println('  stop              stop tracking for the active project');
	println('  summary           show summary for all projects');
	println('  start <project>   start a project');
	echo "\n";
	println('     Copyright (c) 2011 Alex Nichol - All Rights Reserved');
	echo "\n";
}

function parseConfigLine ($aLine) {
	$project = '';
	$start = '';
	$end = '';
	for ($i = 0; $i < strlen($aLine); $i++) {
		$char = substr($aLine, $i, 1);
		if ($char == ':') break;
		$project = $project . $char;
	}
	for ($i = strlen($project) + 1; $i < strlen($aLine); $i++) {
		$char = substr($aLine, $i, 1);
		if ($char == ':') break;
		$start = $start . $char;
	}
	$endStart = strlen($project) + strlen($start) + 2;
	if ($endStart < strlen($aLine)) {
		$end = substr($aLine, $endStart, strlen($aLine) - $endStart);
	}
	return array('project' => $project, 'start' => $start, 'end' => $end);
}

function openProjectsFile () {
	$fpMode = 'r+';
	if (!file_exists(getTheFile())) {
		$fpMode = 'w+';
	}
	$f = fopen(getTheFile(), $fpMode) or die('Failed to open projects file');
	return $f;
}

function getCurrentProject ($f) {
	fseek($f, 0);
	while (!feof($f)) {
		$line = fgets($f);
		if (strlen($line) > 0) {
			$info = parseConfigLine($line);
			if (strlen($info['end']) == 0) {
				return $info;
			}
		}
	}
	return null;
}

function startProject ($projName) {
	global $argv;
	$f = openProjectsFile();
	// check to make sure that an item isn't currently being worked on.
	$currProj = getCurrentProject($f);
	if ($currProj != null) {
		$currName = $currProj['project'];
		println('Cannot start "' . $projName . '" while working on "' . $currName . '"');
		echo "\n";
		println('Run: `' . $argv[0] . ' stop` to stop work.');
		exit();
	}
	fseek($f, 0, SEEK_END);
	fwrite($f, $projName . ':' . getFormatTime() . "\n");
	fclose($f);
	showStatus();
}

function showSummary () {
	$projsTime = array();
	$f = openProjectsFile();
	while (!feof($f)) {
		$line = fgets($f);
		if (strlen($line) > 0) {
			$info = parseConfigLine($line);
			if (!isset($projsTime[$info['project']])) {
				$projsTime[$info['project']] = $info['end'] - $info['start'];
			} else {
				$projsTime[$info['project']] += $info['end'] - $info['start'];
			}
		}
	}
	fclose($f);
	foreach ($projsTime as $key => $value) {
		println('Worked on ' . $key . ' for ' . toDurationStr($value) . '.');
	}
}

function stopCurrent () {
	$f = openProjectsFile();
	$currProj = getCurrentProject($f);
	if ($currProj != null) {
		$endTime = getFormatTime();
		fseek($f, -1, SEEK_END);
		fwrite($f, ':' . $endTime . "\n");
		$duration = $endTime - $currProj['start'];
		$durationStr = toDurationStr($duration);
		println('Worked on "' . $currProj['project'] . '" for ' . $durationStr . '.');
	} else {
		println('Working on no projects.');
	}
	fclose($f);
}

function showStatus () {
	$f = openProjectsFile();
	$currProj = getCurrentProject($f);
	if ($currProj != null) {
		println('Working on "' . $currProj['project'] . '"');
		println('  beginning at ' . fmtDate($currProj['start']));
	} else {
		println('Working on no projects.');
	}
	fclose($f);
}

function toDurationStr ($duration) {
	$days = floor($duration / (60 * 60 * 24));
	$hours = floor($duration / (60 * 60)) % (60 * 60);
	$minutes = floor($duration / 60) % 60;
	$seconds = floor($duration) % 60;
	return sprintf("%d:%02d:%02d:%02d", $days, $hours, $minutes, $seconds);
}

function getFormatTime () {
	return time();
}

function fromFormatTime ($fmtTime) {
	return $fmtTime;
}

function fmtDate ($timestamp) {
	date_default_timezone_set('America/New_York');
	return date(DATE_RFC822, $timestamp);
}

?>