Files
mgmt/lang/funcs/core/sys/hostname_fact.go
James Shubin 2648fb1bb1 legal: Happy 2020 everyone...
Done with:

ack '2019+' -l | xargs sed -i -e 's/2019+/2020+/g'

Checked manually with:

git add -p

Hello to future James from 2021, and Happy Hacking!
2020-01-03 20:08:37 -05:00

75 lines
2.2 KiB
Go

// Mgmt
// Copyright (C) 2013-2020+ James Shubin and the project contributors
// Written by James Shubin <james@shubin.ca> and the project contributors
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package coresys
import (
"github.com/purpleidea/mgmt/lang/funcs/facts"
"github.com/purpleidea/mgmt/lang/types"
)
func init() {
facts.ModuleRegister(ModuleName, "hostname", func() facts.Fact { return &HostnameFact{} }) // must register the fact and name
}
// HostnameFact is a function that returns the hostname.
// TODO: support hostnames that change in the future.
type HostnameFact struct {
init *facts.Init
closeChan chan struct{}
}
// Validate makes sure we've built our struct properly. It is usually unused for
// normal facts that users can use directly.
//func (obj *HostnameFact) Validate() error {
// return nil
//}
// Info returns some static info about itself.
func (obj *HostnameFact) Info() *facts.Info {
return &facts.Info{
Output: types.NewType("str"),
}
}
// Init runs some startup code for this fact.
func (obj *HostnameFact) Init(init *facts.Init) error {
obj.init = init
obj.closeChan = make(chan struct{})
return nil
}
// Stream returns the single value that this fact has, and then closes.
func (obj *HostnameFact) Stream() error {
select {
case obj.init.Output <- &types.StrValue{
V: obj.init.Hostname,
}:
// pass
case <-obj.closeChan:
return nil
}
close(obj.init.Output) // signal that we're done sending
return nil
}
// Close runs some shutdown code for this fact and turns off the stream.
func (obj *HostnameFact) Close() error {
close(obj.closeChan)
return nil
}