[file->setattr]
| Link | file->setattr |
| Author | Ke Carlton |
| Category | File |
| 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->setattr('user.checksum'='xyz','user.example'='abc')
#f->getattr('user.checksum') // xyz
Source Code
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/* ---------------------------------------------------------------
//
// Extended file attributes
//
// Reference: http://en.wikipedia.org/wiki/Extended_file_attributes
*/
define file->setattr(name::string,value::string,silent::boolean=true) => {
// Linux / OSX only, adjust setfattr path accordingly
// Namespaces: user, trusted, security and system
// Example usage: file->setattr('user.checksum','xyz')
local(
p = sys_process('/usr/bin/setfattr',staticarray('-n',#name,'-v',#value,file_forceroot(.path)->replace('//','/')&))->wait &,
e = #p->readerror,
s = #p->readstring
)
handle => {#p->close}
not #silent && #e ? fail(-1,#e->asstring)
return #s
}
define file->setattr(p::pair,...) => {
// Example usage: file->setattr('user.checksum'='xyz','user.example'='abc')
.setattr(#p->name,#p->value)
with p in #rest do {
#p->isa(::pair) ? .setattr(#p->name,#p->value)
}
}
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