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Implement the GetLibraryPath function.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16323 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2004-09-14 00:16:39 +00:00
parent 9ab80b794e
commit 74e7261e90
2 changed files with 90 additions and 0 deletions
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45
lib/System/Unix/Path.cpp
View File

@ -44,6 +44,51 @@ Path::GetRootDirectory() {
return result;
}
static inline bool IsLibrary(Path& path, const std::string& basename) {
if (path.append_file(std::string("lib") + basename)) {
if (path.append_suffix(Path::GetDLLSuffix()) && path.readable())
return true;
else if (path.elide_suffix() && path.append_suffix("a") && path.readable())
return true;
else if (path.elide_suffix() && path.append_suffix("o") && path.readable())
return true;
} else if (path.elide_file() && path.append_file(basename)) {
if (path.append_suffix(Path::GetDLLSuffix()) && path.readable())
return true;
else if (path.elide_suffix() && path.append_suffix("a") && path.readable())
return true;
else if (path.elide_suffix() && path.append_suffix("o") && path.readable())
return true;
}
path.clear();
return false;
}
Path
Path::GetLibraryPath(const std::string& basename,
const std::vector<std::string>& LibPaths) {
Path result;
// Try the paths provided
for (std::vector<std::string>::const_iterator I = LibPaths.begin(),
E = LibPaths.end(); I != E; ++I ) {
if (result.set_directory(*I) && IsLibrary(result,basename))
return result;
}
// Try /usr/lib
if (result.set_directory("/usr/lib/") && IsLibrary(result,basename))
return result;
// Try /lib
if (result.set_directory("/lib/") && IsLibrary(result,basename))
return result;
// Can't find it, give up and return invalid path.
result.clear();
return result;
}
Path
Path::GetSystemLibraryPath1() {
return Path("/lib/");

45
lib/System/Unix/Path.inc
View File

@ -44,6 +44,51 @@ Path::GetRootDirectory() {
return result;
}
static inline bool IsLibrary(Path& path, const std::string& basename) {
if (path.append_file(std::string("lib") + basename)) {
if (path.append_suffix(Path::GetDLLSuffix()) && path.readable())
return true;
else if (path.elide_suffix() && path.append_suffix("a") && path.readable())
return true;
else if (path.elide_suffix() && path.append_suffix("o") && path.readable())
return true;
} else if (path.elide_file() && path.append_file(basename)) {
if (path.append_suffix(Path::GetDLLSuffix()) && path.readable())
return true;
else if (path.elide_suffix() && path.append_suffix("a") && path.readable())
return true;
else if (path.elide_suffix() && path.append_suffix("o") && path.readable())
return true;
}
path.clear();
return false;
}
Path
Path::GetLibraryPath(const std::string& basename,
const std::vector<std::string>& LibPaths) {
Path result;
// Try the paths provided
for (std::vector<std::string>::const_iterator I = LibPaths.begin(),
E = LibPaths.end(); I != E; ++I ) {
if (result.set_directory(*I) && IsLibrary(result,basename))
return result;
}
// Try /usr/lib
if (result.set_directory("/usr/lib/") && IsLibrary(result,basename))
return result;
// Try /lib
if (result.set_directory("/lib/") && IsLibrary(result,basename))
return result;
// Can't find it, give up and return invalid path.
result.clear();
return result;
}
Path
Path::GetSystemLibraryPath1() {
return Path("/lib/");