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config.go
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config.go
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// Copyright 2015 CoreOS, Inc.
//
// 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 types
import (
"fmt"
"github.com/coreos/go-semver/semver"
"github.com/flatcar/ignition/config/validate/report"
)
var (
MaxVersion = semver.Version{
Major: 2,
Minor: 1,
}
)
func (c Config) Validate() report.Report {
r := report.Report{}
rules := []rule{
checkFilesFilesystems,
checkDuplicateFilesystems,
}
for _, rule := range rules {
rule(c, &r)
}
return r
}
type rule func(cfg Config, report *report.Report)
func checkNodeFilesystems(node Node, filesystems map[string]struct{}, nodeType string) report.Report {
r := report.Report{}
if node.Filesystem == "" {
// Filesystem was not specified. This is an error, but its handled in types.File's Validate, not here
return r
}
_, ok := filesystems[node.Filesystem]
if !ok {
r.Add(report.Entry{
Kind: report.EntryWarning,
Message: fmt.Sprintf("%v %q references nonexistent filesystem %q. (This is ok if it is defined in a referenced config)",
nodeType, node.Path, node.Filesystem),
})
}
return r
}
func checkFilesFilesystems(cfg Config, r *report.Report) {
filesystems := map[string]struct{}{"root": {}}
for _, filesystem := range cfg.Storage.Filesystems {
filesystems[filesystem.Name] = struct{}{}
}
for _, file := range cfg.Storage.Files {
r.Merge(checkNodeFilesystems(file.Node, filesystems, "File"))
}
for _, link := range cfg.Storage.Links {
r.Merge(checkNodeFilesystems(link.Node, filesystems, "Link"))
}
for _, dir := range cfg.Storage.Directories {
r.Merge(checkNodeFilesystems(dir.Node, filesystems, "Directory"))
}
}
func checkDuplicateFilesystems(cfg Config, r *report.Report) {
filesystems := map[string]struct{}{"root": {}}
for _, filesystem := range cfg.Storage.Filesystems {
if _, ok := filesystems[filesystem.Name]; ok {
r.Add(report.Entry{
Kind: report.EntryWarning,
Message: fmt.Sprintf("Filesystem %q shadows exising filesystem definition", filesystem.Name),
})
}
filesystems[filesystem.Name] = struct{}{}
}
}