forked from helm/helm
-
Notifications
You must be signed in to change notification settings - Fork 0
/
search.go
164 lines (135 loc) · 3.96 KB
/
search.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
/*
Copyright The Helm Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package main
import (
"fmt"
"io"
"strings"
"github.com/Masterminds/semver"
"github.com/gosuri/uitable"
"github.com/spf13/cobra"
"k8s.io/helm/cmd/helm/search"
"k8s.io/helm/pkg/helm/helmpath"
"k8s.io/helm/pkg/repo"
)
const searchDesc = `
Search reads through all of the repositories configured on the system, and
looks for matches.
Repositories are managed with 'helm repo' commands.
`
// searchMaxScore suggests that any score higher than this is not considered a match.
const searchMaxScore = 25
type searchCmd struct {
out io.Writer
helmhome helmpath.Home
versions bool
regexp bool
version string
colWidth uint
}
func newSearchCmd(out io.Writer) *cobra.Command {
sc := &searchCmd{out: out}
cmd := &cobra.Command{
Use: "search [keyword]",
Short: "search for a keyword in charts",
Long: searchDesc,
RunE: func(cmd *cobra.Command, args []string) error {
sc.helmhome = settings.Home
return sc.run(args)
},
}
f := cmd.Flags()
f.BoolVarP(&sc.regexp, "regexp", "r", false, "use regular expressions for searching")
f.BoolVarP(&sc.versions, "versions", "l", false, "show the long listing, with each version of each chart on its own line")
f.StringVarP(&sc.version, "version", "v", "", "search using semantic versioning constraints")
f.UintVar(&sc.colWidth, "col-width", 60, "specifies the max column width of output")
return cmd
}
func (s *searchCmd) run(args []string) error {
index, err := s.buildIndex()
if err != nil {
return err
}
var res []*search.Result
if len(args) == 0 {
res = index.All()
} else {
q := strings.Join(args, " ")
res, err = index.Search(q, searchMaxScore, s.regexp)
if err != nil {
return err
}
}
search.SortScore(res)
data, err := s.applyConstraint(res)
if err != nil {
return err
}
fmt.Fprintln(s.out, s.formatSearchResults(data, s.colWidth))
return nil
}
func (s *searchCmd) applyConstraint(res []*search.Result) ([]*search.Result, error) {
if len(s.version) == 0 {
return res, nil
}
constraint, err := semver.NewConstraint(s.version)
if err != nil {
return res, fmt.Errorf("an invalid version/constraint format: %s", err)
}
data := res[:0]
foundNames := map[string]bool{}
for _, r := range res {
if _, found := foundNames[r.Name]; found {
continue
}
v, err := semver.NewVersion(r.Chart.Version)
if err != nil || constraint.Check(v) {
data = append(data, r)
if !s.versions {
foundNames[r.Name] = true // If user hasn't requested all versions, only show the latest that matches
}
}
}
return data, nil
}
func (s *searchCmd) formatSearchResults(res []*search.Result, colWidth uint) string {
if len(res) == 0 {
return "No results found"
}
table := uitable.New()
table.MaxColWidth = colWidth
table.AddRow("NAME", "CHART VERSION", "APP VERSION", "DESCRIPTION")
for _, r := range res {
table.AddRow(r.Name, r.Chart.Version, r.Chart.AppVersion, r.Chart.Description)
}
return table.String()
}
func (s *searchCmd) buildIndex() (*search.Index, error) {
// Load the repositories.yaml
rf, err := repo.LoadRepositoriesFile(s.helmhome.RepositoryFile())
if err != nil {
return nil, err
}
i := search.NewIndex()
for _, re := range rf.Repositories {
n := re.Name
f := s.helmhome.CacheIndex(n)
ind, err := repo.LoadIndexFile(f)
if err != nil {
fmt.Fprintf(s.out, "WARNING: Repo %q is corrupt or missing. Try 'helm repo update'.", n)
continue
}
i.AddRepo(n, ind, s.versions || len(s.version) > 0)
}
return i, nil
}