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3caee383f0
- over the course of a project history every maintainer needs to update
its dependency packages, the problem essentially with godep is manipulating
GOPATH - this manipulation leads to static objects created at different locations
which end up conflicting with the overall functionality of golang.
This also leads to broken builds on many platforms. There is no easier way out of
this other than asking users to do 'godep restore' all the time which perhaps as
a practice doesn't sound clean, also has its own set of problems.
- govendor on the other hand is a right tool but a stop gap tool until we wait for
golangs official 1.5 version which fixes this vendoring issue once and for all.
- govendor makes sure that the import paths are re-written instead of manipulating
GOPATH.
This has advantages
- no more compiled objects being referenced in GOPATH and build time GOPATH
manging which leads to conflicts.
- proper import paths referencing the exact package a project is dependent on.
govendor is simple and provides the minimal necessary tooling to achieve this.
For now this is the right solution.
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/mc/internal/github.com/minio/cli"
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"github.com/minio/mc/internal/github.com/minio/minio/pkg/probe"
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"github.com/minio/mc/pkg/console"
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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: mainDiff,
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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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// mainDiff - is a handler for mc diff command
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func mainDiff(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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fatalIf(err)
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secondURL, err = getExpandedURL(secondURL, config.Aliases)
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fatalIf(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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fatalIf(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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