78 lines
2.4 KiB
Go
78 lines
2.4 KiB
Go
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// Copyright 2018 clair authors
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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 gitutil
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import (
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"io/ioutil"
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"os"
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"os/exec"
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"strings"
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"testing"
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"github.com/stretchr/testify/require"
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)
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func createTemporaryGitRepo(t *testing.T) string {
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// create temporary folder
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path, err := ioutil.TempDir(os.TempDir(), "1b750a87bbfc")
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require.Nil(t, err)
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// initialize git
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cmd := exec.Command("git", "init", path)
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out, err := cmd.CombinedOutput()
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require.Nil(t, err, "Failed to initialize temporary git repo, output=%s", string(out))
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return path
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}
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func createEmptyCommit(t *testing.T, repoPath string) {
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cmd := exec.Command("git", "commit", "-m", "\"init\"", "--allow-empty")
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cmd.Dir = repoPath
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out, err := cmd.CombinedOutput()
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require.Nil(t, err, "Failed to submit first empty git commit, output=%s", string(out))
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}
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func getHeadCommitRev(t *testing.T, repoPath string) string {
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cmd := exec.Command("git", "rev-parse", "HEAD")
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cmd.Dir = repoPath
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out, err := cmd.CombinedOutput()
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require.Nil(t, err, "Failed to get head revision, output=%s", string(out))
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return strings.TrimSuffix(string(out), "\n")
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}
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func TestCloneOrPull(t *testing.T) {
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remote := createTemporaryGitRepo(t)
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createEmptyCommit(t, remote)
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expectedHead := getHeadCommitRev(t, remote)
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t.Log(expectedHead)
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repoPath := ""
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tempDirPrefix := "9c2d4181"
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path, head, err := CloneOrPull(remote, repoPath, tempDirPrefix)
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require.Nil(t, err)
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_, err = os.Stat(path)
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require.Nil(t, err, "Expect generated repo to exist")
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require.Equal(t, expectedHead, head)
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// create second empty commit to try pull
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createEmptyCommit(t, remote)
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expectedHead = getHeadCommitRev(t, remote)
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t.Log(expectedHead)
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newPath, newHead, err := CloneOrPull(remote, path, tempDirPrefix)
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require.Nil(t, err)
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_, err = os.Stat(path)
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require.Nil(t, err, "Expect generated repo to exist")
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require.Equal(t, path, newPath, "No new path should be created when pulling")
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require.Equal(t, expectedHead, newHead)
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}
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