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https://github.com/kubernetes-sigs/kustomize.git
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ad400cd13d
This PR closes a TODO in the fileLoader type to replace the string representing a git repo url with a struct called holding validated fields. New struct is called RepoSpec. It holds what we need in coming PRs for remote repo base containment checks, and will also allow the overlay cycle prevention code to take into account different host schemes or branches. The struct is in a new file called repospec.go. The new file is mostly just a code move of url parsing code that was in cloner.go. Git "blame" history preserved through the move. No change in execution (see final commit by itself).
69 lines
1.7 KiB
Go
69 lines
1.7 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 git
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import (
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"bytes"
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"os/exec"
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"github.com/pkg/errors"
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"sigs.k8s.io/kustomize/pkg/fs"
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)
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// Cloner is a function that can clone a git repo.
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type Cloner func(url string) (*RepoSpec, error)
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// ClonerUsingGitExec uses a local git install, as opposed
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// to say, some remote API, to obtain a local clone of
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// a remote repo.
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func ClonerUsingGitExec(spec string) (*RepoSpec, error) {
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gitProgram, err := exec.LookPath("git")
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if err != nil {
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return nil, errors.Wrap(err, "no 'git' program on path")
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}
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repoSpec, err := NewRepoSpecFromUrl(spec)
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if err != nil {
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return nil, err
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}
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repoSpec.cloneDir, err = fs.NewTmpConfirmedDir()
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if err != nil {
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return nil, err
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}
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cmd := exec.Command(
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gitProgram,
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"clone",
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repoSpec.repo,
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repoSpec.cloneDir.String())
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var out bytes.Buffer
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cmd.Stdout = &out
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err = cmd.Run()
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if err != nil {
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return nil, errors.Wrapf(err, "trouble cloning %s", spec)
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}
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if repoSpec.ref == "" {
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return repoSpec, nil
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}
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cmd = exec.Command(gitProgram, "checkout", repoSpec.ref)
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cmd.Dir = repoSpec.cloneDir.String()
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err = cmd.Run()
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if err != nil {
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return nil, errors.Wrapf(
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err, "trouble checking out href %s", repoSpec.ref)
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}
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return repoSpec, nil
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}
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