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f1ed69e883
Build tags are not compatible with block comments. Also adds copyright header to a few places it was missing.
81 lines
2.3 KiB
Go
81 lines
2.3 KiB
Go
// Copyright 2015 CoreOS, 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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package command
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import (
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"fmt"
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"github.com/coreos/etcd/Godeps/_workspace/src/github.com/codegangsta/cli"
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"github.com/coreos/etcd/Godeps/_workspace/src/github.com/coreos/go-etcd/etcd"
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)
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func NewLsCommand() cli.Command {
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return cli.Command{
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Name: "ls",
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Usage: "retrieve a directory",
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Flags: []cli.Flag{
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cli.BoolFlag{Name: "sort", Usage: "returns result in sorted order"},
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cli.BoolFlag{Name: "recursive", Usage: "returns all values for key and child keys"},
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cli.BoolFlag{Name: "p", Usage: "append slash (/) to directories"},
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},
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Action: func(c *cli.Context) {
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handleLs(c, lsCommandFunc)
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},
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}
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}
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// handleLs handles a request that intends to do ls-like operations.
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func handleLs(c *cli.Context, fn handlerFunc) {
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handleContextualPrint(c, fn, printLs)
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}
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// printLs writes a response out in a manner similar to the `ls` command in unix.
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// Non-empty directories list their contents and files list their name.
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func printLs(c *cli.Context, resp *etcd.Response, format string) {
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if !resp.Node.Dir {
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fmt.Println(resp.Node.Key)
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}
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for _, node := range resp.Node.Nodes {
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rPrint(c, node)
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}
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}
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// lsCommandFunc executes the "ls" command.
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func lsCommandFunc(c *cli.Context, client *etcd.Client) (*etcd.Response, error) {
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key := "/"
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if len(c.Args()) != 0 {
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key = c.Args()[0]
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}
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recursive := c.Bool("recursive")
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sort := c.Bool("sort")
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// Retrieve the value from the server.
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return client.Get(key, sort, recursive)
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}
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// rPrint recursively prints out the nodes in the node structure.
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func rPrint(c *cli.Context, n *etcd.Node) {
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if n.Dir && c.Bool("p") {
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fmt.Println(fmt.Sprintf("%v/", n.Key))
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} else {
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fmt.Println(n.Key)
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}
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for _, node := range n.Nodes {
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rPrint(c, node)
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}
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}
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