[file->getattr]
| Link | file->getattr |
| Author | Ke Carlton |
| Category | Action |
| Version | 9.x |
| License | Public Domain |
| Posted | 09 Jul 2013 |
| Updated | 09 Jul 2013 |
| More by this author... | |
Description
Sample Usage
local(f) = file('///tmp/myfile.txt')
#f->getattr('user.checksum')
Source Code
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/* ---------------------------------------------------------------
//
// Extended file attributes
//
// Reference: http://en.wikipedia.org/wiki/Extended_file_attributes
*/
define file->getattr(name::string,silent::boolean=true) => {
// Linux / OSX only, adjust getfattr path accordingly
// Example usage: file->getattr('user.checksum')
local(t = micros)
local(
p = sys_process('/usr/bin/getfattr',staticarray('--only-values','-n',#name,file_forceroot(.path)->replace('//','/')&))->wait &,
e = #p->readerror,
s = #p->readstring
)
handle => {#p->close}
not #silent && #e && #e !>> `leading '/'` ? fail(-1,#e->asstring)
return #s || #e
}
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