This repository has been archived by the owner on Nov 9, 2017. It is now read-only.
/
env.go
204 lines (176 loc) · 4.48 KB
/
env.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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
package main
import (
"errors"
"fmt"
"log"
"sort"
"strings"
"github.com/flynn/flynn-controller/client"
ct "github.com/flynn/flynn-controller/types"
)
var cmdEnv = &Command{
Run: runEnv,
Usage: "env [-t <proc>]",
Short: "list env vars",
Long: "Command env shows all env vars.",
}
var envProc string
func init() {
cmdEnv.Flag.StringVarP(&envProc, "process-type", "t", "", "include env from process type")
}
func runEnv(cmd *Command, args []string, client *controller.Client) error {
if len(args) != 0 {
cmd.printUsage(true)
}
release, err := client.GetAppRelease(mustApp())
if err == controller.ErrNotFound {
return nil
}
if err != nil {
return err
}
if envProc != "" {
if release.Env == nil {
release.Env = make(map[string]string)
}
for k, v := range release.Processes[envProc].Env {
release.Env[k] = v
}
}
vars := make([]string, 0, len(release.Env))
for k, v := range release.Env {
vars = append(vars, k+"="+v)
}
sort.Strings(vars)
for _, v := range vars {
fmt.Println(v)
}
return nil
}
var cmdEnvSet = &Command{
Run: runEnvSet,
Usage: "env-set [-t <proc>] <name>=<value>...",
Short: "set env vars",
Long: "Command set sets the value of one or more env vars.",
}
func init() {
cmdEnvSet.Flag.StringVarP(&envProc, "process-type", "t", "", "set env for process type")
}
func runEnvSet(cmd *Command, args []string, client *controller.Client) error {
if len(args) == 0 {
cmd.printUsage(true)
}
env := make(map[string]*string, len(args))
for _, s := range args {
v := strings.SplitN(s, "=", 2)
if len(v) != 2 {
return fmt.Errorf("invalid var format: %q", s)
}
env[v[0]] = &v[1]
}
id, err := setEnv(client, envProc, env)
if err != nil {
return err
}
log.Printf("Created release %s.", id)
return nil
}
var cmdEnvUnset = &Command{
Run: runEnvUnset,
Usage: "env-unset [-t <proc>] <name>...",
Short: "unset env vars",
Long: "Command unset deletes one or more env vars.",
}
func init() {
cmdEnvUnset.Flag.StringVarP(&envProc, "process-type", "t", "", "unset env var for process type")
}
func runEnvUnset(cmd *Command, args []string, client *controller.Client) error {
if len(args) == 0 {
cmd.printUsage(true)
}
env := make(map[string]*string, len(args))
for _, s := range args {
env[s] = nil
}
id, err := setEnv(client, envProc, env)
if err != nil {
return err
}
log.Printf("Created release %s.", id)
return nil
}
var cmdEnvGet = &Command{
Run: runEnvGet,
Usage: "env-get [-t <proc>] <name>",
Short: "get env var",
Long: "Get the value of an env var.",
}
func init() {
cmdEnvGet.Flag.StringVarP(&envProc, "process-type", "t", "", "get env var for process type")
}
func runEnvGet(cmd *Command, args []string, client *controller.Client) error {
if len(args) != 1 {
cmd.printUsage(true)
}
release, err := client.GetAppRelease(mustApp())
if err == controller.ErrNotFound {
return errors.New("no app release found")
}
if _, ok := release.Processes[envProc]; envProc != "" && !ok {
return fmt.Errorf("process type %q not found in release %s", envProc, release.ID)
}
if v, ok := release.Env[args[0]]; ok {
fmt.Println(v)
return nil
}
if v, ok := release.Processes[envProc].Env[args[0]]; ok {
fmt.Println(v)
return nil
}
return fmt.Errorf("var %q not found in release %q", args[0], release.ID)
}
func setEnv(client *controller.Client, proc string, env map[string]*string) (string, error) {
release, err := client.GetAppRelease(mustApp())
if err == controller.ErrNotFound {
artifact := &ct.Artifact{}
if err := client.CreateArtifact(artifact); err != nil {
return "", err
}
release = &ct.Release{ArtifactID: artifact.ID}
if proc != "" {
release.Processes = make(map[string]ct.ProcessType)
release.Processes[proc] = ct.ProcessType{}
}
} else if err != nil {
return "", err
}
var dest map[string]string
if proc != "" {
if _, ok := release.Processes[proc]; !ok {
return "", fmt.Errorf("process %q in release %s not found", proc, release.ID)
}
if release.Processes[proc].Env == nil {
p := release.Processes[proc]
p.Env = make(map[string]string, len(env))
release.Processes[proc] = p
}
dest = release.Processes[proc].Env
} else {
if release.Env == nil {
release.Env = make(map[string]string, len(env))
}
dest = release.Env
}
for k, v := range env {
if v == nil {
delete(dest, k)
} else {
dest[k] = *v
}
}
release.ID = ""
if err := client.CreateRelease(release); err != nil {
return "", err
}
return release.ID, client.SetAppRelease(mustApp(), release.ID)
}