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ENH: Added kwsys SystemTools::CreateSymlink and SystemTools::ReadSymlink.

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This commit is contained in:
Brad King 2007-03-12 13:50:28 -04:00
parent 558dbc84ad
commit e01cdf2065
4 changed files with 50 additions and 15 deletions
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14
Source/cmSystemTools.cxx
View File

@ -1376,20 +1376,6 @@ bool cmSystemTools::StringEndsWith(const char* str1, const char* str2)
return !strncmp(str1 + (strlen(str1)-strlen(str2)), str2, strlen(str2));
}
#if defined(_WIN32) && !defined(__CYGWIN__)
bool cmSystemTools::CreateSymlink(const char*, const char*)
{
// Should we create a copy here?
return false;
}
#else
bool cmSystemTools::CreateSymlink(const char* origName, const char* newName)
{
return (symlink(origName, newName) >= 0);
}
#endif
// compute the relative path from here to there
std::string cmSystemTools::RelativePath(const char* local, const char* remote)
{

1
Source/cmSystemTools.h
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@ -297,7 +297,6 @@ public:
static std::string ConvertToRunCommandPath(const char* path);
//! Check if the first string ends with the second one.
static bool StringEndsWith(const char* str1, const char* str2);
static bool CreateSymlink(const char* origName, const char* newName);
/** compute the relative path from local to remote. local must
be a directory. remote can be a file or a directory.

38
Source/kwsys/SystemTools.cxx
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@ -2356,6 +2356,44 @@ bool SystemTools::FileIsSymlink(const char* name)
#endif
}
#if defined(_WIN32) && !defined(__CYGWIN__)
bool SystemTools::CreateSymlink(const char*, const char*)
{
return false;
}
#else
bool SystemTools::CreateSymlink(const char* origName, const char* newName)
{
return symlink(origName, newName) >= 0;
}
#endif
#if defined(_WIN32) && !defined(__CYGWIN__)
bool SystemTools::ReadSymlink(const char*, kwsys_stl::string&)
{
return false;
}
#else
bool SystemTools::ReadSymlink(const char* newName,
kwsys_stl::string& origName)
{
char buf[KWSYS_SYSTEMTOOLS_MAXPATH+1];
int count =
static_cast<int>(readlink(newName, buf, KWSYS_SYSTEMTOOLS_MAXPATH));
if(count >= 0)
{
// Add null-terminator.
buf[count] = 0;
origName = buf;
return true;
}
else
{
return false;
}
}
#endif
int SystemTools::ChangeDirectory(const char *dir)
{
return Chdir(dir);

12
Source/kwsys/SystemTools.hxx.in
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@ -588,6 +588,18 @@ public:
unsigned long length = 256,
double percent_bin = 0.05);
/**
* Create a symbolic link if the platform supports it. Returns whether
* creation succeded.
*/
static bool CreateSymlink(const char* origName, const char* newName);
/**
* Read the contents of a symbolic link. Returns whether reading
* succeded.
*/
static bool ReadSymlink(const char* newName, kwsys_stl::string& origName);
/**
* Try to locate the file 'filename' in the directory 'dir'.
* If 'filename' is a fully qualified filename, the basename of the file is