unit_threaded.options source code

1 /**
2    Run-time options.
3  */
4 module unit_threaded.options;
5 
6 ///
7 struct Options {
8     bool multiThreaded;
9     string[] testsToRun;
10     bool debugOutput;
11     bool list;
12     bool exit;
13     bool forceEscCodes;
14     bool random;
15     uint seed;
16     bool stackTraces;
17     bool showChrono;
18 }
19 
20 /**
21  * Parses the command-line args and returns Options
22  */
23 auto getOptions(string[] args) {
24 
25     import std.stdio : writeln;
26     import std.random : unpredictableSeed;
27     import std.getopt : getopt;
28 
29     bool single;
30     bool debugOutput;
31     bool help;
32     bool list;
33     bool forceEscCodes;
34     bool random;
35     uint seed = unpredictableSeed;
36     bool stackTraces;
37     bool showChrono;
38 
39     getopt(args, "single|s", &single, //single-threaded
40             "debug|d", &debugOutput, //print debug output
41             "esccodes|e",
42             &forceEscCodes, "help|h", &help, "list|l", &list, "random|r", &random,
43             "seed", &seed, "trace|t", &stackTraces, "chrono|c", &showChrono,);
44 
45     if (help) {
46         writeln("Usage: <progname> <options> <tests>...\n", "Options: \n",
47                 "  -h/--help: help\n", "  -s/--single: single-threaded\n",
48                 "  -l/--list: list tests\n", "  -d/--debug: enable debug output\n",
49                 "  -e/--esccodes: force ANSI escape codes even for !isatty\n",
50                 "  -r/--random: run tests in random order\n",
51                 "  --seed: set the seed for the random order\n",
52                 "  -t/--trace: enable stack traces\n",
53                 "  -c/--chrono: print execution time per test",);
54     }
55 
56     if (random) {
57         if (!single)
58             writeln("-r implies -s, running in a single thread\n");
59         single = true;
60     }
61 
62     version (unitUnthreaded)
63         single = true;
64 
65     immutable exit = help || list;
66     return Options(!single, args[1 .. $], debugOutput, list, exit,
67             forceEscCodes, random, seed, stackTraces, showChrono);
68 }