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
|
#include "file.h"
#include <algorithm>
#include <string>
#include <unordered_set>
#include <libreichwein/stringhelper.h>
#include "env.h"
namespace fs = std::filesystem;
using namespace std::string_literals;
const fs::path YMakefile{"YMakefile"};
// type of file can be built from dependencies
bool is_buildable_by_extension(const fs::path& p) {
fs::path ext{p.extension()};
return ext.empty() || ext == ".o" || is_dynamic_lib(p) || is_dynamic_lib_link(p) || is_static_lib(p) ;
}
namespace {
std::unordered_set<fs::path> compile_unit_source_types{".cpp", ".c", ".cc", ".S", ".rs"};
}
// type of file is source of compile unit (no included types like headers)
bool is_compile_unit_source_by_extension(const fs::path& p) {
fs::path ext{p.extension()};
return compile_unit_source_types.find(ext) != compile_unit_source_types.end();
}
bool is_executable_target(const std::filesystem::path& p)
{
return p.extension().empty();
}
// e.g. libxyz.so.1.2.3 (the shorter versions are links to this one)
bool is_dynamic_lib(const std::filesystem::path& p)
{
std::string name{p.filename()};
return name.find(".so.") != name.npos && std::count(name.begin(), name.end(), '.') == 4;
}
// e.g. libxyz.so.1 libxyz.so
bool is_dynamic_lib_link(const std::filesystem::path& p)
{
std::string name{p.filename()};
return name.find(".so") != name.npos && std::count(name.begin(), name.end(), '.') < 4;
}
// in: libxyz.so.1.2.3
// out: libxyz.so.1
std::filesystem::path soname_shorter(const std::filesystem::path& p)
{
std::string name{p.filename()};
if (std::count(name.begin(), name.end(), '.') != 4) {
throw std::runtime_error("Unexpected soname: "s + name + ", 4 dots expected.");
}
size_t pos{0};
for (int i = 0; i < 3; ++i) {
pos = name.find('.', pos);
++pos;
}
name = name.substr(0, pos - 1);
fs::path result{p};
result.replace_filename(name);
return result;
}
// in: libxyz.so.1.2.3
// out: libxyz.so
std::filesystem::path soname_short(const std::filesystem::path& p)
{
std::string name{p.filename()};
if (std::count(name.begin(), name.end(), '.') != 4) {
throw std::runtime_error("Unexpected soname: "s + name + ", 4 dots expected.");
}
size_t pos{0};
for (int i = 0; i < 2; ++i) {
pos = name.find('.', pos);
++pos;
}
name = name.substr(0, pos - 1);
fs::path result{p};
result.replace_filename(name);
return result;
}
// e.g.
// subdir1/libxyz.so.1.2.3 -> xyz
// libabc.so -> abc
// file1.so.1 -> file1
std::string dynamic_lib_name(const std::filesystem::path& p)
{
std::string result {p.stem().string()};
if (result.substr(0, 3) == "lib") {
result = result.substr(3);
}
return result;
}
bool is_static_lib(const std::filesystem::path& p)
{
return p.extension() == ".a";
}
std::filesystem::path simplified_path(const std::filesystem::path& p)
{
if (p.string().substr(0, 2) == "./") {
return p.string().substr(2);
}
return p;
}
bool is_executable_command(const std::string& file) {
std::vector<std::string> paths {Reichwein::Stringhelper::split(env_value("PATH"), ":")};
for (const auto& i: paths) {
fs::path path{i + "/" + file};
if (fs::exists(path) && (fs::status(path).permissions() & std::filesystem::perms::others_exec) != std::filesystem::perms::none) {
return true;
}
}
return false;
}
std::string find_executable(const std::vector<std::string>& list) {
std::vector<std::string> paths {Reichwein::Stringhelper::split(env_value("PATH"), ":")};
for (const auto& i: list) {
for (const auto& j: paths) {
fs::path path{j + "/" + i};
if (fs::exists(path) && (fs::status(path).permissions() & std::filesystem::perms::others_exec) != std::filesystem::perms::none) {
return i;
}
}
}
return {};
}
|
