summaryrefslogtreecommitdiff
path: root/workers.go
blob: b92d3cb5497ff0fc4f6cbd0271f1ad36bbf76e22 (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
package main

import (
	"fmt"
	"github.com/go-yaml/yaml"
	"golang.org/x/crypto/openpgp"
	"io/ioutil"
	"log"
	"os"
	"regexp"
	"strings"
)

func (worker *SCORSHworker) Matches(repo, branch string) bool {

	for _, r := range worker.Repos {
		parts := strings.SplitN(r, ":", 2)
		repo_pattern := parts[0]
		branch_pattern := parts[1]
		repo_match, _ := regexp.MatchString(repo_pattern, repo)
		branch_match, _ := regexp.MatchString(branch_pattern, branch)
		debug.log("[worker.Matches] repo_match: %s\n", repo_match)
		debug.log("[worker.Matches] branch_match: %s\n", branch_match)
		if repo_match && branch_match {
			return true
		}
	}
	return false
}

func (w *SCORSHworker) LoadKeyrings() error {

	w.Keys = make(map[string]openpgp.KeyRing, len(w.Keyrings))

	// Open the keyring files
	for _, keyring := range w.Keyrings {
		f, err_file := os.Open(keyring)

		if err_file != nil {
			log.Printf("[worker] cannot open keyring:", err_file)
			f.Close()
			return fmt.Errorf("Unable to open keyring: ", err_file)
		}

		// load the keyring
		kr, err_key := openpgp.ReadArmoredKeyRing(f)

		if err_key != nil {
			log.Printf("[worker] cannot load keyring: ", err_key)
			f.Close()
			return fmt.Errorf("Unable to load keyring: ", err_key)
		}
		w.Keys[keyring] = kr
		f.Close()
	}
	return nil
}

// Still to be implemented
func (w *SCORSHworker) LoadTags() error {

	w_tags, err := ioutil.ReadFile(w.Tagfile)
	if err != nil {
		return fmt.Errorf("Cannot read worker config: %s", err)
	}

	err = yaml.Unmarshal(w_tags, w)
	//err = yaml.Unmarshal(w_tags, tags)

	if err != nil {
		return fmt.Errorf("Error while reading tags: %s", err)
	}

	return nil
}

// FIXME--- still needs some work...
func Worker(w *SCORSHworker) {

	var msg SCORSHmsg

	log.Printf("[worker: %s] Started\n", w.Name)
	debug.log("[worker: %s] MsgChan: %s\n", w.Name, w.MsgChan)

	// notify that we have been started!
	w.StatusChan <- msg

	// This is the main worker loop
	for {
		select {
		case msg = <-w.MsgChan:
			debug.log("[worker: %s] received message %s\n", w.Name, msg.Id)
			// process message
			err := walk_commits(msg, w)
			if err != nil {
				log.Printf("[worker: %s] error in walk_commits: %s", err)
			}
			w.StatusChan <- msg
			debug.log("[worker: %s] Sent message back: %s", w.Name, msg)
		}
	}
}

// StartWorkers starts all the workers specified in a given
// configuration and fills in the SCORSHmaster struct
func StartWorkers(master *SCORSHmaster) error {

	num_workers := len(master.Workers)

	// We should now start each worker

	log.Printf("num_workers: %d\n", num_workers)

	for w := 0; w < num_workers; w++ {

		worker := &(master.Workers[w])
		// Set the Status and Msg channels
		worker.StatusChan = master.StatusChan
		worker.MsgChan = make(chan SCORSHmsg, 10)
		// Load worker keyrings
		err := worker.LoadKeyrings()
		if err != nil {
			close(worker.MsgChan)
			return fmt.Errorf("[Starting worker: %s] Unable to load keyrings: %s\n", worker.Name, err)
		}
		// Load worker tags from worker.Tagfile
		err = worker.LoadTags()
		if err != nil {
			close(worker.MsgChan)
			return fmt.Errorf("[Starting worker: %s] Unable to load tags: %s\n", worker.Name, err)
		}

		// Create the map of keyring for each tag
		worker.TagKeys = make(map[string]map[string]bool)
		for _, t := range worker.Tags {
			worker.TagKeys[t.Name] = make(map[string]bool)
			for _, k := range t.Keyrings {
				worker.TagKeys[t.Name][k] = true
			}
		}

		// Add the repos definitions to the map master.Repos
		for _, repo_name := range worker.Repos {
			master.Repos[repo_name] = append(master.Repos[repo_name], worker)
		}
		go Worker(worker)
		<-master.StatusChan
	}
	return nil
}