stig
/
src
/
main.cc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
#include "ob/parg.hh"
using Parg = OB::Parg;
#include "ob/string.hh"
namespace String = OB::String;
#include "stig/stig.hh"
namespace Stig = OB::Stig;
#include <string>
#include <iostream>
int program_options(Parg& pg);
int program_options(Parg& pg)
{
pg.name("stig").version("0.1.6 (05.01.2019)");
pg.description("A CLI tool for searching Git repositories on GitHub.");
pg.usage("[flags] [options] [--] [arguments]");
pg.usage("[-q|--query str] [-p|--page int] [-n|--number int] [-s|--sort stars|forks|updated|best] [-o|--order asc|desc] [-f|--filter key:value[ key:value]...] [--token str] [--host str] [-c|--color on|off|auto]");
pg.usage("[-r|--readme user/repo[/ref]]");
pg.usage("[-v|--version]");
pg.usage("[-h|--help]");
pg.info("Examples", {
"stig --query 'stig' --number 20 --page 1",
"stig --query 'stig' --filter 'language:cpp'",
"stig --query 'stig' | less",
"stig --query '' --sort 'stars' --filter 'language:js'",
"stig --query 'http server' --filter 'language:cpp stars:>10'",
"stig --readme 'octobanana/stig'",
"stig --readme 'octobanana/stig/master'",
"stig --readme 'octobanana/stig' | less",
"stig --help",
"stig --version",
});
pg.info("Exit Codes", {"0 -> normal", "1 -> error"});
pg.info("Repository", {
"https://github.com/octobanana/stig.git",
});
pg.info("Homepage", {
"https://octobanana.com/software/stig",
});
pg.author("Brett Robinson (octobanana) <octobanana.dev@gmail.com>");
// general flags
pg.set("help,h", "print the help output");
pg.set("version,v", "print the program version");
// general options
pg.set("token", "", "str", "used to validate against GitHub, enables a greater number of requests before being rate-limited");
pg.set("host", "api.github.com", "str", "perform GitHub API v3 requests against a custom host");
// query options
pg.set("query,q", "", "str", "the query string");
pg.set("page,p", "1", "int", "the page number to get");
pg.set("number,n", "10", "int", "the number of results to show per page");
pg.set("sort,s", "best", "stars|forks|updated|best", "how to sort the search results, default is best match");
pg.set("order,o", "desc", "asc|desc", "the order to sort the search results, default is desc");
pg.set("filter,f", "", "key:value[ key:value]...", "filter results with space seperated key:value pairs");
pg.set("color,c", "auto", "on|off|auto", "used to determine the output color preference, default is auto");
// readme options
pg.set("readme,r", "", "user/repo[/ref]", "print a repos README.md to stdout");
// pg.set_pos();
// pg.set_stdin();
int status {pg.parse()};
if (status > 0 && pg.get_stdin().empty())
{
std::cerr << pg.help() << "\n";
std::cerr << "Error: " << "expected arguments" << "\n";
return -1;
}
if (status < 0)
{
std::cerr << pg.help() << "\n";
std::cerr << "Error: " << pg.error() << "\n";
if (pg.similar().size() > 0)
{
std::cerr << "Did you mean: ";
for (auto const& e : pg.similar())
{
std::cerr << e << " ";
}
std::cerr << "\n";
}
else
{
std::cerr << "No suggestions found.\n";
}
return -1;
}
if (pg.get<bool>("help"))
{
std::cerr << pg.help();
return 1;
}
if (pg.get<bool>("version"))
{
std::cerr << pg.name() << " v" << pg.version() << "\n";
return 1;
}
if (! pg.find("query") && ! pg.find("readme"))
{
std::cerr << pg.help() << "\n";
std::cerr << "Error: " << "expected either '--query' or '--readme'" << "\n";
return -1;
}
if (pg.find("query") && pg.find("readme"))
{
std::cerr << pg.help() << "\n";
std::cerr << "Error: " << "choose either '--query' or '--readme'" << "\n";
return -1;
}
if (pg.find("page") && pg.get<std::size_t>("page") < 1)
{
std::cerr << pg.help() << "\n";
std::cerr << "Error: " << "option '--page' must be greater than zero" << "\n";
return -1;
}
if (pg.find("number") && (pg.get<std::size_t>("number") < 1 || pg.get<std::size_t>("number") > 100))
{
std::cerr << pg.help() << "\n";
std::cerr << "Error: " << "option '--number' must be between 1 and 100" << "\n";
return -1;
}
if (pg.find("order") && ! pg.find("sort"))
{
std::cerr << pg.help() << "\n";
std::cerr << "Error: " << "option '--order' must be paired with '--sort'" << "\n";
return -1;
}
if (pg.find("sort") && ! String::assert_rx(pg.get("sort"), std::regex("^stars|forks|updated|best$")))
{
std::cerr << pg.help() << "\n";
std::cerr << "Error: " << "option '--sort' contains an invalid value, try 'stars', 'forks', or 'updated'" << "\n";
return -1;
}
if (pg.find("order") && ! String::assert_rx(pg.get("order"), std::regex("^asc|desc$")))
{
std::cerr << pg.help() << "\n";
std::cerr << "Error: " << "option '--order' contains an invalid value, try 'asc' or 'desc'" << "\n";
return -1;
}
if (pg.find("color") && ! String::assert_rx(pg.get("color"), std::regex("^on|off|auto$")))
{
std::cerr << pg.help() << "\n";
std::cerr << "Error: " << "option '--color' contains an invalid value, try 'on', 'off', or 'auto'" << "\n";
return -1;
}
return 0;
}
int main(int argc, char *argv[])
{
Parg pg {argc, argv};
int pstatus {program_options(pg)};
if (pstatus > 0) return 0;
if (pstatus < 0) return 1;
try
{
// query
if (pg.find("query"))
{
auto query = pg.get("query");
auto const filter = pg.get("filter");
if (! filter.empty())
{
auto const filters = String::split(filter, " ");
for (auto const& kv : filters)
{
auto k_v = String::split(kv, ":");
if (k_v.size() != 2)
{
throw std::runtime_error(
"filter '" + kv + "' is invalid" +
"\nexpected 'key:value[ key:value]...'" +
"\nview the help output with '-h'"
);
}
query += " " + k_v.at(0) + ":" + k_v.at(1);
}
}
if (query.empty())
{
throw std::runtime_error(
"query string is empty"
"\nview the help output with '-h'"
);
}
auto sort = pg.get("sort");
if (sort == "best")
{
sort = "";
}
auto const host = pg.get("host");
auto const order = pg.get("order");
auto const page = pg.get<std::size_t>("page");
auto const per_page = pg.get<std::size_t>("number");
auto const token = pg.get("token");
auto const color = pg.get("color");
Stig::search(host, query, sort, order, page, per_page, token, color);
}
// readme
else if (pg.find("readme"))
{
auto const path = pg.get("readme");
struct match
{
enum
{
path,
repo,
ref
};
};
auto const valid_repo = String::match(path,
std::regex("^([^\\/]+?\\/[^\\/]+)(?:/([^\\/]+?))?$"));
if (! valid_repo)
{
throw std::runtime_error(
"repo path is invalid"
"\nview the help output with '-h'"
);
}
auto const host = pg.get("host");
auto const repo = valid_repo.value().at(match::repo);
auto const ref = valid_repo.value().at(match::ref);
Stig::readme(host, repo, ref);
}
}
catch(std::exception const& e)
{
std::cerr << "Error: " << e.what() << "\n";
}
catch(...)
{
std::cerr << "Error: an unexpected error occurred\n";
}
return 0;
}