aboutsummaryrefslogtreecommitdiffstats
path: root/lib/xdsserver/sdks.go
blob: 9c10747c8d93b88ef5f0ce4b11dcd829ea4453bf (plain)
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
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
/*
 * Copyright (C) 2017 "IoT.bzh"
 * Author Sebastien Douheret <sebastien@iot.bzh>
 *
 * 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 xdsserver

import (
	"fmt"
	"path"
	"path/filepath"
	"strings"
	"sync"

	common "github.com/iotbzh/xds-common/golib"
	"github.com/iotbzh/xds-server/lib/xsapiv1"
	uuid "github.com/satori/go.uuid"
)

// SDKs List of installed SDK
type SDKs struct {
	*Context
	Sdks map[string]*CrossSDK

	mutex sync.Mutex
	stop  chan struct{} // signals intentional stop
}

// NewSDKs creates a new instance of SDKs
func NewSDKs(ctx *Context) (*SDKs, error) {
	s := SDKs{
		Context: ctx,
		Sdks:    make(map[string]*CrossSDK),
		stop:    make(chan struct{}),
	}

	scriptsDir := ctx.Config.FileConf.SdkScriptsDir
	if !common.Exists(scriptsDir) {
		// allow to use scripts/sdk in debug mode
		scriptsDir = filepath.Join(filepath.Dir(ctx.Config.FileConf.SdkScriptsDir), "scripts", "sdks")
		if !common.Exists(scriptsDir) {
			return &s, fmt.Errorf("scripts directory doesn't exist (%v)", scriptsDir)
		}
	}
	s.Log.Infof("SDK scripts dir: %s", scriptsDir)

	dirs, err := filepath.Glob(path.Join(scriptsDir, "*"))
	if err != nil {
		s.Log.Errorf("Error while retrieving SDK scripts: dir=%s, error=%s", scriptsDir, err.Error())
		return &s, err
	}

	s.mutex.Lock()
	defer s.mutex.Unlock()

	// Foreach directories in scripts/sdk
	nbInstalled := 0
	monSdksPath := make(map[string]*xsapiv1.SDKFamilyConfig)
	for _, d := range dirs {
		if !common.IsDir(d) {
			continue
		}

		sdksList, err := ListCrossSDK(d, s.Log)
		if err != nil {
			// allow to use XDS even if error on list
			s.Log.Errorf("Cannot retrieve SDK list: %v", err)
		}
		s.LogSillyf("'%s' SDKs list: %v", d, sdksList)

		for _, sdk := range sdksList {
			cSdk, err := NewCrossSDK(ctx, sdk, d)
			if err != nil {
				s.Log.Debugf("Error while processing SDK sdk=%v\n err=%s", sdk, err.Error())
				continue
			}
			if _, exist := s.Sdks[cSdk.sdk.ID]; exist {
				s.Log.Warningf("Duplicate SDK ID : %v", cSdk.sdk.ID)
				cSdk.sdk.ID += "_DUPLICATE_" + uuid.NewV1().String()
			}
			s.Sdks[cSdk.sdk.ID] = cSdk
			if cSdk.sdk.Status == xsapiv1.SdkStatusInstalled {
				nbInstalled++
			}

			monSdksPath[cSdk.sdk.FamilyConf.RootDir] = &cSdk.sdk.FamilyConf
		}
	}

	ctx.Log.Debugf("Cross SDKs: %d defined, %d installed", len(s.Sdks), nbInstalled)

	// Start monitor thread to detect new SDKs
	if len(monSdksPath) == 0 {
		s.Log.Warningf("No cross SDKs definition found")
	}

	return &s, nil
}

// Stop SDKs management
func (s *SDKs) Stop() {
	close(s.stop)
}

// monitorSDKInstallation
/* TODO: cleanup
func (s *SDKs) monitorSDKInstallation(monSDKs map[string]*xsapiv1.SDKFamilyConfig) {

	// Set up a watchpoint listening for inotify-specific events
	c := make(chan notify.EventInfo, 1)

	addWatcher := func(rootDir string) error {
		s.Log.Debugf("SDK Register watcher: rootDir=%s", rootDir)

		if err := notify.Watch(rootDir+"/...", c, notify.Create, notify.Remove); err != nil {
			return fmt.Errorf("SDK monitor: rootDir=%v err=%v", rootDir, err)
		}
		return nil
	}

	// Add directory watchers
	for dir := range monSDKs {
		if err := addWatcher(dir); err != nil {
			s.Log.Errorln(err.Error())
		}
	}

	// Wait inotify or stop events
	for {
		select {
		case <-s.stop:
			s.Log.Debugln("Stop monitorSDKInstallation")
			notify.Stop(c)
			return
		case ei := <-c:
			s.LogSillyf("monitorSDKInstallation SDKs event %v, path %v\n", ei.Event(), ei.Path())

			// Filter out all event that doesn't match environment file
			if !strings.Contains(ei.Path(), "environment-setup-") {
				continue
			}
			dir := path.Dir(ei.Path())

			sdk, err := s.GetByPath(dir)
			if err != nil {
				s.Log.Warningf("Cannot find SDK path to notify creation")
				s.LogSillyf("event: %v", ei.Event())
				continue
			}

			switch ei.Event() {
			case notify.Create:
				// Emit Folder state change event
				if err := s.events.Emit(xsapiv1.EVTSDKInstall, sdk, ""); err != nil {
					s.Log.Warningf("Cannot notify SDK install: %v", err)
				}

			case notify.Remove, notify.InMovedFrom:
				// Emit Folder state change event
				if err := s.events.Emit(xsapiv1.EVTSDKRemove, sdk, ""); err != nil {
					s.Log.Warningf("Cannot notify SDK remove: %v", err)
				}
			}
		}
	}
}
*/

// ResolveID Complete an SDK ID (helper for user that can use partial ID value)
func (s *SDKs) ResolveID(id string) (string, error) {
	if id == "" {
		return "", nil
	}

	match := []string{}
	for iid := range s.Sdks {
		if strings.HasPrefix(iid, id) {
			match = append(match, iid)
		}
	}

	if len(match) == 1 {
		return match[0], nil
	} else if len(match) == 0 {
		return id, fmt.Errorf("Unknown sdk id")
	}
	return id, fmt.Errorf("Multiple sdk IDs found with provided prefix: " + id)
}

// Get returns an SDK from id
func (s *SDKs) Get(id string) *xsapiv1.SDK {
	s.mutex.Lock()
	defer s.mutex.Unlock()

	sc, exist := s.Sdks[id]
	if !exist {
		return nil
	}
	return (*sc).Get()
}

// GetByPath Find a SDK from path
func (s *SDKs) GetByPath(path string) (*xsapiv1.SDK, error) {
	if path == "" {
		return nil, fmt.Errorf("can't found sdk (empty path)")
	}
	for _, ss := range s.Sdks {
		if ss.sdk.Path == path {
			return ss.Get(), nil
		}
	}
	return nil, fmt.Errorf("not found")
}

// GetAll returns all existing SDKs
func (s *SDKs) GetAll() []xsapiv1.SDK {
	s.mutex.Lock()
	defer s.mutex.Unlock()
	res := []xsapiv1.SDK{}
	for _, v := range s.Sdks {
		res = append(res, *(*v).Get())
	}
	return res
}

// GetEnvCmd returns the command used to initialized the environment for an SDK
func (s *SDKs) GetEnvCmd(id string, defaultID string) []string {
	if id == "" && defaultID == "" {
		// no env cmd
		return []string{}
	}

	s.mutex.Lock()
	defer s.mutex.Unlock()

	if iid, err := s.ResolveID(id); err == nil {
		if sdk, exist := s.Sdks[iid]; exist {
			return sdk.GetEnvCmd()
		}
	}

	if sdk, exist := s.Sdks[defaultID]; defaultID != "" && exist {
		return sdk.GetEnvCmd()
	}

	// Return default env that may be empty
	return []string{}
}

// Install Used to install a new SDK
func (s *SDKs) Install(id, filepath string, force bool, timeout int, sess *ClientSession) (*xsapiv1.SDK, error) {
	var cSdk *CrossSDK
	if id != "" && filepath != "" {
		return nil, fmt.Errorf("invalid parameter, both id and filepath are set")
	}
	if id != "" {
		var exist bool
		cSdk, exist = s.Sdks[id]
		if !exist {
			return nil, fmt.Errorf("unknown id")
		}
	} else if filepath != "" {
		// TODO check that file is accessible

	} else {
		return nil, fmt.Errorf("invalid parameter, id or filepath must be set")
	}

	s.mutex.Lock()
	defer s.mutex.Unlock()

	// Launch script to install
	// (note that add event will be generated by monitoring thread)
	if err := cSdk.Install(filepath, force, timeout, sess); err != nil {
		return &cSdk.sdk, err
	}

	return &cSdk.sdk, nil
}

// AbortInstall Used to abort SDK installation
func (s *SDKs) AbortInstall(id string, timeout int) (*xsapiv1.SDK, error) {

	if id == "" {
		return nil, fmt.Errorf("invalid parameter")
	}
	cSdk, exist := s.Sdks[id]
	if !exist {
		return nil, fmt.Errorf("unknown id")
	}

	s.mutex.Lock()
	defer s.mutex.Unlock()

	err := cSdk.AbortInstallRemove(timeout)

	return &cSdk.sdk, err
}

// Remove Used to uninstall a SDK
func (s *SDKs) Remove(id string, timeout int, sess *ClientSession) (*xsapiv1.SDK, error) {

	cSdk, exist := s.Sdks[id]
	if !exist {
		return nil, fmt.Errorf("unknown id")
	}

	s.mutex.Lock()
	defer s.mutex.Unlock()

	// Launch script to remove/uninstall
	// (note that remove event will be generated by monitoring thread)
	if err := cSdk.Remove(timeout, sess); err != nil {
		return &cSdk.sdk, err
	}

	sdk := cSdk.sdk

	// Don't delete it from s.Sdks
	// (always keep sdk reference to allow for example re-install)

	return &sdk, nil
}