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
|
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmUseMangledMesaCommand.h"
#include "cmsys/FStream.hxx"
#include "cmsys/RegularExpression.hxx"
#include "cmExecutionStatus.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
namespace {
void CopyAndFullPathMesaHeader(const std::string& source,
const std::string& outdir);
}
bool cmUseMangledMesaCommand(std::vector<std::string> const& args,
cmExecutionStatus& status)
{
// expected two arguments:
// argument one: the full path to gl_mangle.h
// argument two : directory for output of edited headers
if (args.size() != 2) {
status.SetError("called with incorrect number of arguments");
return false;
}
const std::string& inputDir = args[0];
std::string glh = cmStrCat(inputDir, "/gl.h");
if (!cmSystemTools::FileExists(glh)) {
std::string e = cmStrCat("Bad path to Mesa, could not find: ", glh, ' ');
status.SetError(e);
return false;
}
const std::string& destDir = args[1];
std::vector<std::string> files;
cmSystemTools::Glob(inputDir, "\\.h$", files);
if (files.empty()) {
cmSystemTools::Error("Could not open Mesa Directory " + inputDir);
return false;
}
cmSystemTools::MakeDirectory(destDir);
for (std::string const& f : files) {
std::string path = cmStrCat(inputDir, '/', f);
CopyAndFullPathMesaHeader(path, destDir);
}
return true;
}
namespace {
void CopyAndFullPathMesaHeader(const std::string& source,
const std::string& outdir)
{
std::string dir;
std::string file;
cmSystemTools::SplitProgramPath(source, dir, file);
std::string outFile = cmStrCat(outdir, '/', file);
std::string tempOutputFile = cmStrCat(outFile, ".tmp");
cmsys::ofstream fout(tempOutputFile.c_str());
if (!fout) {
cmSystemTools::Error("Could not open file for write in copy operation: " +
tempOutputFile + outdir);
cmSystemTools::ReportLastSystemError("");
return;
}
cmsys::ifstream fin(source.c_str());
if (!fin) {
cmSystemTools::Error("Could not open file for read in copy operation" +
source);
return;
}
// now copy input to output and expand variables in the
// input file at the same time
std::string inLine;
// regular expression for any #include line
cmsys::RegularExpression includeLine(
"^[ \t]*#[ \t]*include[ \t]*[<\"]([^\">]+)[\">]");
// regular expression for gl/ or GL/ in a file (match(1) of above)
cmsys::RegularExpression glDirLine(R"((gl|GL)(/|\\)([^<"]+))");
// regular expression for gl GL or xmesa in a file (match(1) of above)
cmsys::RegularExpression glLine("(gl|GL|xmesa)");
while (cmSystemTools::GetLineFromStream(fin, inLine)) {
if (includeLine.find(inLine)) {
std::string includeFile = includeLine.match(1);
if (glDirLine.find(includeFile)) {
std::string gfile = glDirLine.match(3);
fout << "#include \"" << outdir << "/" << gfile << "\"\n";
} else if (glLine.find(includeFile)) {
fout << "#include \"" << outdir << "/" << includeLine.match(1)
<< "\"\n";
} else {
fout << inLine << "\n";
}
} else {
fout << inLine << "\n";
}
}
// close the files before attempting to copy
fin.close();
fout.close();
cmSystemTools::MoveFileIfDifferent(tempOutputFile, outFile);
}
}
|
