github.com/passone/helm@v3.0.0-beta.3+incompatible/cmd/helm/repo_index_test.go (about)

     1  /*
     2  Copyright The Helm Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package main
    18  
    19  import (
    20  	"bytes"
    21  	"io"
    22  	"os"
    23  	"path/filepath"
    24  	"testing"
    25  
    26  	"helm.sh/helm/internal/test/ensure"
    27  	"helm.sh/helm/pkg/repo"
    28  )
    29  
    30  func TestRepoIndexCmd(t *testing.T) {
    31  
    32  	dir := ensure.TempDir(t)
    33  
    34  	comp := filepath.Join(dir, "compressedchart-0.1.0.tgz")
    35  	if err := linkOrCopy("testdata/testcharts/compressedchart-0.1.0.tgz", comp); err != nil {
    36  		t.Fatal(err)
    37  	}
    38  	comp2 := filepath.Join(dir, "compressedchart-0.2.0.tgz")
    39  	if err := linkOrCopy("testdata/testcharts/compressedchart-0.2.0.tgz", comp2); err != nil {
    40  		t.Fatal(err)
    41  	}
    42  
    43  	buf := bytes.NewBuffer(nil)
    44  	c := newRepoIndexCmd(buf)
    45  
    46  	if err := c.RunE(c, []string{dir}); err != nil {
    47  		t.Error(err)
    48  	}
    49  
    50  	destIndex := filepath.Join(dir, "index.yaml")
    51  
    52  	index, err := repo.LoadIndexFile(destIndex)
    53  	if err != nil {
    54  		t.Fatal(err)
    55  	}
    56  
    57  	if len(index.Entries) != 1 {
    58  		t.Errorf("expected 1 entry, got %d: %#v", len(index.Entries), index.Entries)
    59  	}
    60  
    61  	vs := index.Entries["compressedchart"]
    62  	if len(vs) != 2 {
    63  		t.Errorf("expected 2 versions, got %d: %#v", len(vs), vs)
    64  	}
    65  
    66  	expectedVersion := "0.2.0"
    67  	if vs[0].Version != expectedVersion {
    68  		t.Errorf("expected %q, got %q", expectedVersion, vs[0].Version)
    69  	}
    70  
    71  	// Test with `--merge`
    72  
    73  	// Remove first two charts.
    74  	if err := os.Remove(comp); err != nil {
    75  		t.Fatal(err)
    76  	}
    77  	if err := os.Remove(comp2); err != nil {
    78  		t.Fatal(err)
    79  	}
    80  	// Add a new chart and a new version of an existing chart
    81  	if err := linkOrCopy("testdata/testcharts/reqtest-0.1.0.tgz", filepath.Join(dir, "reqtest-0.1.0.tgz")); err != nil {
    82  		t.Fatal(err)
    83  	}
    84  	if err := linkOrCopy("testdata/testcharts/compressedchart-0.3.0.tgz", filepath.Join(dir, "compressedchart-0.3.0.tgz")); err != nil {
    85  		t.Fatal(err)
    86  	}
    87  
    88  	c.ParseFlags([]string{"--merge", destIndex})
    89  	if err := c.RunE(c, []string{dir}); err != nil {
    90  		t.Error(err)
    91  	}
    92  
    93  	index, err = repo.LoadIndexFile(destIndex)
    94  	if err != nil {
    95  		t.Fatal(err)
    96  	}
    97  
    98  	if len(index.Entries) != 2 {
    99  		t.Errorf("expected 2 entries, got %d: %#v", len(index.Entries), index.Entries)
   100  	}
   101  
   102  	vs = index.Entries["compressedchart"]
   103  	if len(vs) != 3 {
   104  		t.Errorf("expected 3 versions, got %d: %#v", len(vs), vs)
   105  	}
   106  
   107  	expectedVersion = "0.3.0"
   108  	if vs[0].Version != expectedVersion {
   109  		t.Errorf("expected %q, got %q", expectedVersion, vs[0].Version)
   110  	}
   111  
   112  	// test that index.yaml gets generated on merge even when it doesn't exist
   113  	if err := os.Remove(destIndex); err != nil {
   114  		t.Fatal(err)
   115  	}
   116  
   117  	c.ParseFlags([]string{"--merge", destIndex})
   118  	if err := c.RunE(c, []string{dir}); err != nil {
   119  		t.Error(err)
   120  	}
   121  
   122  	_, err = repo.LoadIndexFile(destIndex)
   123  	if err != nil {
   124  		t.Fatal(err)
   125  	}
   126  
   127  	// verify it didn't create an empty index.yaml and the merged happened
   128  	if len(index.Entries) != 2 {
   129  		t.Errorf("expected 2 entries, got %d: %#v", len(index.Entries), index.Entries)
   130  	}
   131  
   132  	vs = index.Entries["compressedchart"]
   133  	if len(vs) != 3 {
   134  		t.Errorf("expected 3 versions, got %d: %#v", len(vs), vs)
   135  	}
   136  
   137  	expectedVersion = "0.3.0"
   138  	if vs[0].Version != expectedVersion {
   139  		t.Errorf("expected %q, got %q", expectedVersion, vs[0].Version)
   140  	}
   141  }
   142  
   143  func linkOrCopy(old, new string) error {
   144  	if err := os.Link(old, new); err != nil {
   145  		return copyFile(old, new)
   146  	}
   147  
   148  	return nil
   149  }
   150  
   151  func copyFile(dst, src string) error {
   152  	i, err := os.Open(dst)
   153  	if err != nil {
   154  		return err
   155  	}
   156  	defer i.Close()
   157  
   158  	o, err := os.Create(src)
   159  	if err != nil {
   160  		return err
   161  	}
   162  	defer o.Close()
   163  
   164  	_, err = io.Copy(o, i)
   165  
   166  	return err
   167  }