|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/* this file is part of pipelines */ |
|
4
|
|
|
|
|
5
|
|
|
namespace Ktomk\Pipelines\Utility; |
|
6
|
|
|
|
|
7
|
|
|
use Exception; |
|
8
|
|
|
use Ktomk\Pipelines\Cli\ArgsException; |
|
9
|
|
|
use Ktomk\Pipelines\Cli\Streams; |
|
10
|
|
|
use Ktomk\Pipelines\File\ParseException; |
|
11
|
|
|
|
|
12
|
|
|
class ExceptionHandler |
|
13
|
|
|
{ |
|
14
|
|
|
/** |
|
15
|
|
|
* @var bool |
|
16
|
|
|
*/ |
|
17
|
|
|
private $showStacktraceFlag; |
|
18
|
|
|
|
|
19
|
|
|
/** |
|
20
|
|
|
* @var Help |
|
21
|
|
|
*/ |
|
22
|
|
|
private $help; |
|
23
|
|
|
/** |
|
24
|
|
|
* @var Streams |
|
25
|
|
|
*/ |
|
26
|
|
|
private $streams; |
|
27
|
|
|
|
|
28
|
|
|
/** |
|
29
|
|
|
* ExceptionHandler constructor. |
|
30
|
|
|
* @param Streams $streams |
|
31
|
|
|
* @param Help $help |
|
32
|
|
|
* @param bool $showStacktrace |
|
33
|
|
|
*/ |
|
34
|
1 |
|
public function __construct(Streams $streams, Help $help, $showStacktrace) |
|
35
|
|
|
{ |
|
36
|
1 |
|
$this->streams = $streams; |
|
37
|
1 |
|
$this->help = $help; |
|
38
|
1 |
|
$this->showStacktraceFlag = $showStacktrace; |
|
39
|
1 |
|
} |
|
40
|
|
|
|
|
41
|
|
|
/** |
|
42
|
|
|
* @param Runnable $runnable |
|
43
|
|
|
* @return mixed|void |
|
44
|
|
|
*/ |
|
45
|
3 |
|
public function handle(Runnable $runnable) |
|
46
|
|
|
{ |
|
47
|
|
|
try { |
|
48
|
3 |
|
$status = $runnable->run(); |
|
49
|
2 |
|
} catch (Exception $e) { |
|
50
|
2 |
|
$status = $this->handleException($e); |
|
51
|
|
|
} |
|
52
|
|
|
|
|
53
|
3 |
|
return $status; |
|
54
|
|
|
} |
|
55
|
|
|
|
|
56
|
|
|
/** |
|
57
|
|
|
* @param Exception $e |
|
58
|
|
|
* @return int |
|
59
|
|
|
*/ |
|
60
|
2 |
|
private function handleException(Exception $e) |
|
61
|
|
|
{ |
|
62
|
2 |
|
$status = $e->getCode(); |
|
63
|
2 |
|
$message = $e->getMessage(); |
|
64
|
|
|
|
|
65
|
|
|
// "catch" unexpected exceptions for user-friendly message |
|
66
|
2 |
|
if (!is_int($status) || $this->isUnexpectedException($e)) { |
|
67
|
1 |
|
$status = 2; |
|
68
|
1 |
|
$message = sprintf('fatal: %s', $e->getMessage()); |
|
69
|
|
|
} |
|
70
|
|
|
|
|
71
|
2 |
|
$this->showError($status, $message); |
|
72
|
2 |
|
$this->showUsage($e); |
|
73
|
2 |
|
$this->showStacktrace($e); |
|
74
|
|
|
|
|
75
|
2 |
|
return $status; |
|
76
|
|
|
} |
|
77
|
|
|
|
|
78
|
|
|
/** |
|
79
|
|
|
* Show error message |
|
80
|
|
|
* |
|
81
|
|
|
* @param int $status |
|
82
|
|
|
* @param string $message |
|
83
|
|
|
*/ |
|
84
|
2 |
|
private function showError($status, $message) |
|
85
|
|
|
{ |
|
86
|
2 |
|
if (0 !== $status && '' !== $message) { |
|
87
|
2 |
|
$this->error(sprintf('pipelines: %s', $message)); |
|
88
|
|
|
} |
|
89
|
2 |
|
} |
|
90
|
|
|
|
|
91
|
|
|
/** |
|
92
|
|
|
* Some exceptions can show usage |
|
93
|
|
|
* |
|
94
|
|
|
* @param Exception $e |
|
95
|
|
|
*/ |
|
96
|
2 |
|
private function showUsage(Exception $e) |
|
97
|
|
|
{ |
|
98
|
2 |
|
if ($e instanceof ArgsException) { |
|
99
|
1 |
|
$this->help->showUsage(); |
|
100
|
|
|
} |
|
101
|
2 |
|
} |
|
102
|
|
|
|
|
103
|
|
|
/** |
|
104
|
|
|
* Show a stacktrace for debugging purposes (`--debug`` flag) |
|
105
|
|
|
* |
|
106
|
|
|
* @param Exception $e |
|
107
|
|
|
*/ |
|
108
|
2 |
|
private function showStacktrace(Exception $e) |
|
109
|
|
|
{ |
|
110
|
2 |
|
if ($this->showStacktraceFlag) { |
|
111
|
2 |
|
$this->debugException($e); |
|
112
|
|
|
} |
|
113
|
2 |
|
} |
|
114
|
|
|
|
|
115
|
|
|
/** |
|
116
|
|
|
* Some exceptions are not unexpected |
|
117
|
|
|
* |
|
118
|
|
|
* The pipelines utility uses *some* exceptions to signal program |
|
119
|
|
|
* flow in context of the command line utility. E.g. to not call |
|
120
|
|
|
* exit() somewhere deep in the code (StatusException), lazy command |
|
121
|
|
|
* line argument handling (ArgsException) and lazy pipelines.yml |
|
122
|
|
|
* file parsing (ParseException). |
|
123
|
|
|
* |
|
124
|
|
|
* @param Exception $e |
|
125
|
|
|
* |
|
126
|
|
|
* @return bool |
|
127
|
|
|
*/ |
|
128
|
2 |
|
private function isUnexpectedException(Exception $e) |
|
129
|
|
|
{ |
|
130
|
|
|
return ( |
|
131
|
2 |
|
!($e instanceof ArgsException) |
|
132
|
2 |
|
&& !($e instanceof StatusException) |
|
133
|
2 |
|
&& !($e instanceof ParseException) |
|
134
|
|
|
); |
|
135
|
|
|
} |
|
136
|
|
|
|
|
137
|
2 |
|
private function debugException(Exception $e) |
|
138
|
|
|
{ |
|
139
|
2 |
|
for (; $e; $e = $e->getPrevious()) { |
|
140
|
2 |
|
$this->error('--------'); |
|
141
|
2 |
|
$this->error(sprintf('class....: %s', get_class($e))); |
|
142
|
2 |
|
$this->error(sprintf('message..: %s', $e->getMessage())); |
|
143
|
2 |
|
$this->error(sprintf('code.....: %s', $e->getCode())); |
|
144
|
2 |
|
$this->error(sprintf('file.....: %s', $e->getFile())); |
|
145
|
2 |
|
$this->error(sprintf('line.....: %s', $e->getLine())); |
|
146
|
2 |
|
$this->error('backtrace:'); |
|
147
|
2 |
|
$this->error($e->getTraceAsString()); |
|
148
|
|
|
} |
|
149
|
2 |
|
$this->error('--------'); |
|
150
|
2 |
|
} |
|
151
|
|
|
|
|
152
|
2 |
|
private function error($message) |
|
153
|
|
|
{ |
|
154
|
2 |
|
$this->streams->err( |
|
155
|
2 |
|
sprintf("%s\n", $message) |
|
156
|
|
|
); |
|
157
|
2 |
|
} |
|
158
|
|
|
} |
|
159
|
|
|
|
ktomk /
pipelines
