/
heuristics.go
105 lines (93 loc) · 2.36 KB
/
heuristics.go
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// Copyright 2017 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package swupd
import "strings"
func (f *File) setConfigFromPathname() {
// TODO: make this list configurable
configPaths := []string{
"/etc/",
}
for _, path := range configPaths {
if strings.HasPrefix(f.Name, path) {
f.Modifier = ModifierConfig
return
}
}
}
func (f *File) setStateFromPathname() {
// TODO: make this list configurable
statePaths := []string{
"/usr/src/debug",
"/dev",
"/home",
"/proc",
"/root",
"/run",
"/sys",
"/tmp",
"/var",
}
for _, path := range statePaths {
// if no trailing / these are state directories that are actually shipped
// otherwise this is a non-shipped state file and the modifier should be
// set to state
if f.Name == path {
return
} else if strings.HasPrefix(f.Name, path+"/") {
f.Modifier = ModifierState
return
}
}
// TODO: make this list configurable
// these are paths that are not shipped directories
stateDirs := []string{
"/usr/src/",
"/lost+found",
}
for _, path := range stateDirs {
if strings.HasPrefix(f.Name, path) {
f.Modifier = ModifierState
return
}
}
}
func (f *File) setBootFromPathname() {
// TODO: make this list configurable
bootPaths := []string{
"/boot/",
"/usr/lib/modules/",
"/usr/lib/kernel/",
}
for _, path := range bootPaths {
if strings.HasPrefix(f.Name, path) {
f.Modifier = ModifierBoot
if f.Status == StatusDeleted {
f.Status = StatusGhosted
}
return
}
}
}
func (f *File) setModifierFromPathname() {
// order here matters, first check for config, then state, finally boot
// more important modifiers must happen last to overwrite earlier ones
f.setConfigFromPathname()
f.setStateFromPathname()
f.setBootFromPathname()
}
func (m *Manifest) applyHeuristics() {
for _, f := range m.Files {
f.setModifierFromPathname()
}
}