Files
mgmt/engine/util.go
James Shubin 9969286224 engine: Resources package rewrite
This giant patch makes some much needed improvements to the code base.

* The engine has been rewritten and lives within engine/graph/
* All of the common interfaces and code now live in engine/
* All of the resources are in one package called engine/resources/
* The Res API can use different "traits" from engine/traits/
* The Res API has been simplified to hide many of the old internals
* The Watch & Process loops were previously inverted, but is now fixed
* The likelihood of package cycles has been reduced drastically
* And much, much more...

Unfortunately, some code had to be temporarily removed. The remote code
had to be taken out, as did the prometheus code. We hope to have these
back in new forms as soon as possible.
2018-04-19 01:10:58 -04:00

42 lines
1.5 KiB
Go

// Mgmt
// Copyright (C) 2013-2018+ 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 engine
import (
"sort"
)
// ResourceSlice is a linear list of resources. It can be sorted.
type ResourceSlice []Res
func (rs ResourceSlice) Len() int { return len(rs) }
func (rs ResourceSlice) Swap(i, j int) { rs[i], rs[j] = rs[j], rs[i] }
func (rs ResourceSlice) Less(i, j int) bool { return rs[i].String() < rs[j].String() }
// Sort the list of resources and return a copy without modifying the input.
func Sort(rs []Res) []Res {
resources := []Res{}
for _, r := range rs { // copy
resources = append(resources, r)
}
sort.Sort(ResourceSlice(resources))
return resources
// sort.Sort(ResourceSlice(rs)) // this is wrong, it would modify input!
//return rs
}