mirror of
https://github.com/minio/mc.git
synced 2025-11-13 12:22:45 +03:00
86 lines
2.5 KiB
Go
86 lines
2.5 KiB
Go
/*
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* Minio Client (C) 2015 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 main
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import (
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"github.com/minio/cli"
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"github.com/minio/mc/pkg/console"
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"github.com/minio/minio/pkg/probe"
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)
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// Help message.
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var diffCmd = cli.Command{
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Name: "diff",
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Usage: "Compute differences between two files or folders",
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Description: "NOTE: This command *DOES NOT* check for content similarity, which means objects with same size, but different content will not be spotted",
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Action: runDiffCmd,
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CustomHelpTemplate: `NAME:
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mc {{.Name}} - {{.Usage}}
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USAGE:
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mc {{.Name}} FIRST SECOND {{if .Description}}
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DESCRIPTION:
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{{.Description}}{{end}}{{if .Flags}}
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FLAGS:
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{{range .Flags}}{{.}}
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{{end}}{{ end }}
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EXAMPLES:
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1. Compare foo.ogg on a local filesystem with bar.ogg on Amazon AWS cloud storage.
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$ mc {{.Name}} foo.ogg https://s3.amazonaws.com/jukebox/bar.ogg
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2. Compare two different folders on a local filesystem.
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$ mc {{.Name}} ~/Photos /Media/Backup/Photos
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`,
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}
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// runDiffCmd - is a handler for mc diff command
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func runDiffCmd(ctx *cli.Context) {
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if len(ctx.Args()) != 2 || ctx.Args().First() == "help" {
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cli.ShowCommandHelpAndExit(ctx, "diff", 1) // last argument is exit code
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}
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config := mustGetMcConfig()
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firstURL := ctx.Args().First()
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secondURL := ctx.Args()[1]
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var err *probe.Error
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firstURL, err = getExpandedURL(firstURL, config.Aliases)
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Fatal(err)
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secondURL, err = getExpandedURL(secondURL, config.Aliases)
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Fatal(err)
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if isURLRecursive(secondURL) {
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console.Fatalf("Second URL cannot be recursive. %s\n", errInvalidArgument{})
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}
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newFirstURL := stripRecursiveURL(firstURL)
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for diff := range doDiffCmd(newFirstURL, secondURL, isURLRecursive(firstURL)) {
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Fatal(diff.err)
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console.PrintC(diff.message)
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}
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console.Println()
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}
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// doDiffCmd - Execute the diff command
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func doDiffCmd(firstURL, secondURL string, recursive bool) <-chan diff {
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ch := make(chan diff, 10000)
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go doDiffInRoutine(firstURL, secondURL, recursive, ch)
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return ch
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}
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