/
ls-main.go
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/
ls-main.go
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/*
* MinIO Client (C) 2014-2019 MinIO, 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 cmd
import (
"context"
"strings"
"github.com/fatih/color"
"github.com/minio/cli"
"github.com/minio/minio/pkg/console"
)
// ls specific flags.
var (
lsFlags = []cli.Flag{
cli.BoolFlag{
Name: "recursive, r",
Usage: "list recursively",
},
cli.BoolFlag{
Name: "incomplete, I",
Usage: "list incomplete uploads",
},
}
)
// list files and folders.
var lsCmd = cli.Command{
Name: "ls",
Usage: "list buckets and objects",
Action: mainList,
Before: setGlobalsFromContext,
Flags: append(lsFlags, globalFlags...),
CustomHelpTemplate: `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}} [FLAGS] TARGET [TARGET ...]
FLAGS:
{{range .VisibleFlags}}{{.}}
{{end}}
EXAMPLES:
1. List buckets on Amazon S3 cloud storage.
{{.Prompt}} {{.HelpName}} s3
2. List buckets and all its contents from Amazon S3 cloud storage recursively.
{{.Prompt}} {{.HelpName}} --recursive s3
3. List all contents of mybucket on Amazon S3 cloud storage.
{{.Prompt}} {{.HelpName}} s3/mybucket/
4. List all contents of mybucket on Amazon S3 cloud storage on Microsoft Windows.
{{.Prompt}} {{.HelpName}} s3\mybucket\
5. List files recursively on a local filesystem on Microsoft Windows.
{{.Prompt}} {{.HelpName}} --recursive C:\Users\Worf\
6. List incomplete (previously failed) uploads of objects on Amazon S3.
{{.Prompt}} {{.HelpName}} --incomplete s3/mybucket
`,
}
// checkListSyntax - validate all the passed arguments
func checkListSyntax(ctx context.Context, cliCtx *cli.Context) {
args := cliCtx.Args()
if !cliCtx.Args().Present() {
args = []string{"."}
}
for _, arg := range args {
if strings.TrimSpace(arg) == "" {
fatalIf(errInvalidArgument().Trace(args...), "Unable to validate empty argument.")
}
}
// extract URLs.
URLs := cliCtx.Args()
isIncomplete := cliCtx.Bool("incomplete")
for _, url := range URLs {
_, _, err := url2Stat(ctx, url, false, nil)
if err != nil && !isURLPrefixExists(url, isIncomplete) {
// Bucket name empty is a valid error for 'ls myminio',
// treat it as such.
_, buckNameEmpty := err.ToGoError().(BucketNameEmpty)
_, noPath := err.ToGoError().(PathNotFound)
if buckNameEmpty || noPath {
continue
}
fatalIf(err.Trace(url), "Unable to stat `"+url+"`.")
}
}
}
// mainList - is a handler for mc ls command
func mainList(cliCtx *cli.Context) error {
ctx, cancelList := context.WithCancel(globalContext)
defer cancelList()
// Additional command specific theme customization.
console.SetColor("File", color.New(color.Bold))
console.SetColor("Dir", color.New(color.FgCyan, color.Bold))
console.SetColor("Size", color.New(color.FgYellow))
console.SetColor("Time", color.New(color.FgGreen))
// check 'ls' cliCtx arguments.
checkListSyntax(ctx, cliCtx)
// Set command flags from context.
isRecursive := cliCtx.Bool("recursive")
isIncomplete := cliCtx.Bool("incomplete")
args := cliCtx.Args()
// mimic operating system tool behavior.
if !cliCtx.Args().Present() {
args = []string{"."}
}
var cErr error
for _, targetURL := range args {
clnt, err := newClient(targetURL)
fatalIf(err.Trace(targetURL), "Unable to initialize target `"+targetURL+"`.")
if !strings.HasSuffix(targetURL, string(clnt.GetURL().Separator)) {
var st *ClientContent
st, err = clnt.Stat(ctx, isIncomplete, false, nil)
if st != nil && err == nil && st.Type.IsDir() {
targetURL = targetURL + string(clnt.GetURL().Separator)
clnt, err = newClient(targetURL)
fatalIf(err.Trace(targetURL), "Unable to initialize target `"+targetURL+"`.")
}
}
if e := doList(ctx, clnt, isRecursive, isIncomplete); e != nil {
cErr = e
}
}
return cErr
}