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
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
var fs = require("fs");
var path = require("path");
var merge = require("merge");
var yaml = require("js-yaml");
var slugid = require("slugid");
var flatmap = require("flatmap");
var TC_WORKER_TYPE = process.env.TC_WORKER_TYPE || "hg-worker";
var TC_PROVISIONER_ID = process.env.TC_PROVISIONER_ID || "aws-provisioner-v1";
// Default values for debugging.
var TC_REVISION = process.env.TC_REVISION || "{{tc_rev}}";
var TC_REVISION_HASH = process.env.TC_REVISION_HASH || "{{tc_rev_hash}}";
var TC_DOCKER_IMAGE = process.env.TC_DOCKER_IMAGE || "{{tc_docker_img}}";
var TC_OWNER = process.env.TC_OWNER || "{{tc_owner}}";
var TC_SOURCE = process.env.TC_SOURCE || "{{tc_source}}";
var NSS_HEAD_REPOSITORY = process.env.NSS_HEAD_REPOSITORY || "{{nss_head_repo}}";
var NSS_HEAD_REVISION = process.env.NSS_HEAD_REVISION || "{{nss_head_rev}}";
// Point in time at $now + x hours.
function from_now(hours) {
var d = new Date();
d.setHours(d.getHours() + (hours || 0));
return d.toJSON();
}
// Register custom YAML types.
var YAML_SCHEMA = yaml.Schema.create([
new yaml.Type('!from_now', {
kind: "scalar",
resolve: function (data) {
return true;
},
construct: function (data) {
return from_now(data|0);
}
})
]);
// Parse a directory containing YAML files.
function parseDirectory(dir) {
var tasks = {};
fs.readdirSync(dir).forEach(function (file) {
if (file.endsWith(".yml")) {
var source = fs.readFileSync(path.join(dir, file), "utf-8");
tasks[file.slice(0, -4)] = yaml.load(source, {schema: YAML_SCHEMA});
}
});
return tasks;
}
// Generates a task using a given definition.
function generateTasks(definition) {
var task = {
taskId: slugid.v4(),
reruns: 2,
task: task = {
created: from_now(0),
deadline: from_now(24),
provisionerId: TC_PROVISIONER_ID,
workerType: TC_WORKER_TYPE,
schedulerId: "task-graph-scheduler",
scopes: [
"queue:route:tc-treeherder-stage.nss." + TC_REVISION_HASH,
"queue:route:tc-treeherder.nss." + TC_REVISION_HASH,
"scheduler:extend-task-graph:*"
],
routes: [
"tc-treeherder-stage.nss." + TC_REVISION_HASH,
"tc-treeherder.nss." + TC_REVISION_HASH
],
metadata: {
owner: TC_OWNER,
source: TC_SOURCE
},
payload: {
image: TC_DOCKER_IMAGE,
maxRunTime: 3600,
env: {
NSS_HEAD_REPOSITORY: NSS_HEAD_REPOSITORY,
NSS_HEAD_REVISION: NSS_HEAD_REVISION
}
},
extra: {
treeherder: {
revision: TC_REVISION,
revision_hash: TC_REVISION_HASH
}
}
}
};
// Merge base task definition with the YAML one.
var tasks = [task = merge.recursive(true, task, definition)];
// Generate dependent tasks.
if (task.dependents) {
// The base definition for all subtasks.
var base = {
requires: [task.taskId],
task: {
payload: {
env: {
TC_PARENT_TASK_ID: task.taskId
}
}
}
};
// We clone everything but the taskId, we need a new and unique one.
delete base.taskId;
// Iterate and generate all subtasks.
var subtasks = flatmap(task.dependents, function (name) {
if (!(name in TASKS)) {
throw new Error("Can't find task '" + name + "'");
}
return flatmap(TASKS[name], function (subtask) {
// Merge subtask with base definition.
var dependent = merge.recursive(true, subtask, base);
// We only want to carry over environment variables and
// TreeHerder configuration data.
dependent.task.payload.env =
merge.recursive(true, task.task.payload.env,
dependent.task.payload.env);
dependent.task.extra.treeherder =
merge.recursive(true, task.task.extra.treeherder,
dependent.task.extra.treeherder);
// Print all subtasks.
return generateTasks(dependent);
});
});
// Append subtasks.
tasks = tasks.concat(subtasks);
// The dependents field is not part of the schema.
delete task.dependents;
}
// Convert env variables to strings.
tasks.forEach(function (task) {
var env = task.task.payload.env || {};
Object.keys(env).forEach(function (name) {
if (typeof(env[name]) != "undefined") {
env[name] = env[name] + "";
}
});
});
return tasks;
}
// Parse YAML task definitions.
var BUILDS = parseDirectory(path.join(__dirname, "./builds/"));
var TASKS = parseDirectory(path.join(__dirname, "./tasks/"));
var graph = {
// Use files in the "builds" directory as roots.
tasks: flatmap(Object.keys(BUILDS), function (name) {
return flatmap(BUILDS[name], function (build) {
return generateTasks(build);
});
})
};
// Output the final graph.
process.stdout.write(JSON.stringify(graph, null, 2));
|
