103 lines
2.5 KiB
Go
103 lines
2.5 KiB
Go
/*
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* Minio Cloud Storage, (C) 2018 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"context"
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"encoding/json"
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"fmt"
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"time"
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)
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// Captures configurable parameters of usage check.
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type usageConfig struct {
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UsageCheckInterval time.Duration
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}
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// MarshalJSON - encodes to JSON data.
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func (u usageConfig) MarshalJSON() ([]byte, error) {
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type _usageConfig struct {
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UsageCheckInterval string `json:"interval"`
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}
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return json.Marshal(_usageConfig{u.UsageCheckInterval.String()})
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}
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// parseDuration - parse duration string
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func parseDuration(dStr string) (time.Duration, error) {
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d, err := time.ParseDuration(dStr)
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if err != nil {
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return d, err
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}
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if d < globalMinimumUsageCheckInterval {
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return d, fmt.Errorf("interval %s is not allowed, minimum required value is %s",
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d, globalMinimumUsageCheckInterval)
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}
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return d, nil
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}
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// UnmarshalJSON - decodes JSON data.
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func (u *usageConfig) UnmarshalJSON(data []byte) error {
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type _usageConfig struct {
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UsageCheckInterval string `json:"interval"`
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}
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var u1 = _usageConfig{}
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if err := json.Unmarshal(data, &u1); err != nil {
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return err
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}
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if !globalIsEnvUsageCheck {
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d, err := parseDuration(u1.UsageCheckInterval)
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if err != nil {
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return err
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}
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u.UsageCheckInterval = d
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}
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return nil
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}
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// getDiskUsage walks the file tree rooted at root, calling usageFn
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// for each file or directory in the tree, including root.
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func getDiskUsage(ctx context.Context, root string, usageFn usageFunc) error {
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return walk(ctx, root+slashSeparator, usageFn)
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}
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type usageFunc func(ctx context.Context, entry string) error
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// walk recursively descends path, calling walkFn.
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func walk(ctx context.Context, path string, usageFn usageFunc) error {
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if err := usageFn(ctx, path); err != nil {
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return err
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}
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if !hasSuffix(path, slashSeparator) {
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return nil
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}
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entries, err := readDir(path)
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if err != nil {
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return usageFn(ctx, path)
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}
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for _, entry := range entries {
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fname := pathJoin(path, entry)
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if err = walk(ctx, fname, usageFn); err != nil {
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return err
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}
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}
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return nil
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}
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