gfm.logger.log source code

1 module gfm.logger.log;
2 
3 import std.string;
4 import std.stdio;
5 
6 import std.experimental.logger;
7 
8 import colorize;
9 
10 /// Coloured console logger.
11 class ConsoleLogger : Logger
12 {
13     public
14     {
15         this()
16         {
17             super(LogLevel.info);
18         }
19 
20         override protected void writeLogMsg(ref LogEntry payload) @trusted
21         {
22             LogLevel logLevel;
23 
24             auto foregroundColor = fg.white;
25             switch(payload.logLevel)
26             {
27                 case LogLevel.info:
28                     foregroundColor = fg.light_white;
29                     break;
30 
31                 case LogLevel.warning:
32                     foregroundColor = fg.light_yellow;
33                     break;
34 
35                 case LogLevel.error:
36                 case LogLevel.critical:
37                 case LogLevel.fatal:
38                     foregroundColor = fg.light_red;
39                     break;
40 
41                 case LogLevel.trace:
42                 default:
43                     foregroundColor = fg.white;
44             }
45 
46             import colorize.cwrite;
47             stderr.cwritef( color("%s: %s\n", foregroundColor), logLevelToString(payload.logLevel), payload.msg);
48         }
49     }
50 
51     private
52     {
53         static pure string logLevelToString(const LogLevel lv)
54         {
55             switch(lv)
56             {
57                 case LogLevel.trace:
58                     return "trace";
59                 case LogLevel.info:
60                     return "info";
61                 case LogLevel.warning:
62                     return "warning";
63                 case LogLevel.error:
64                     return "error";
65                 case LogLevel.critical:
66                     return "critical";
67                 case LogLevel.fatal:
68                     return "fatal";
69                 default:
70                     assert(false);
71             }
72         }
73     }
74 }