summaryrefslogtreecommitdiffstats
path: root/comm/taskcluster/scripts/are-we-esmified-yet.py
blob: 20eaf108fdb59fa7e3554c5eb778b24a90f2b88f (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
#!/usr/bin/env python3

# 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/.

import json
import os
import pathlib
import subprocess
import sys

TBPL_FAILURE = 2

excluded_prefix = [
    "suite/",
]
EXCLUSION_FILES = [
    os.path.join("tools", "lint", "ThirdPartyPaths.txt"),
]


if not (pathlib.Path(".hg").exists() and pathlib.Path("mail/moz.configure").exists()):
    print(
        "This script needs to be run inside mozilla-central + comm-central "
        "checkout of mercurial. "
    )
    sys.exit(TBPL_FAILURE)


def load_exclusion_files():
    for path in EXCLUSION_FILES:
        with open(path, "r") as f:
            for line in f:
                excluded_prefix.append(line.strip())


def is_excluded(path):
    """Returns true if the JSM file shouldn't be converted to ESM."""
    path_str = str(path)
    for prefix in excluded_prefix:
        if path_str.startswith(prefix):
            return True

    return False


def new_files_struct():
    return {
        "jsm": [],
        "esm": [],
        "subdir": {},
    }


def put_file(files, kind, path):
    """Put a path into files tree structure."""

    if is_excluded(path):
        return

    name = path.name

    current_files = files
    for part in path.parent.parts:
        if part not in current_files["subdir"]:
            current_files["subdir"][part] = new_files_struct()
        current_files = current_files["subdir"][part]

    current_files[kind].append(name)


def run(cmd):
    """Run command and return output as lines, excluding empty line."""
    lines = subprocess.run(cmd, stdout=subprocess.PIPE).stdout.decode()
    return filter(lambda x: x != "", lines.split("\n"))


def collect_jsm(files):
    """Collect JSM files."""
    kind = "jsm"

    # jsm files
    cmd = ["hg", "files", "set:glob:**/*.jsm"]
    for line in run(cmd):
        put_file(files, kind, pathlib.Path(line))

    # js files with EXPORTED_SYMBOLS
    cmd = ["hg", "files", "set:grep('EXPORTED_SYMBOLS = \[') and glob:**/*.js"]
    for line in run(cmd):
        put_file(files, kind, pathlib.Path(line))


def collect_esm(files):
    """Collect system ESM files."""
    kind = "esm"

    # sys.mjs files
    cmd = ["hg", "files", "set:glob:**/*.sys.mjs"]

    for line in run(cmd):
        put_file(files, kind, pathlib.Path(line))


def to_stat(files):
    """Convert files tree into status tree."""
    jsm = len(files["jsm"])
    esm = len(files["esm"])
    subdir = {}

    for key, sub_files in files["subdir"].items():
        sub_stat = to_stat(sub_files)

        subdir[key] = sub_stat
        jsm += sub_stat["jsm"]
        esm += sub_stat["esm"]

    stat = {
        "jsm": jsm,
        "esm": esm,
    }
    if len(subdir):
        stat["subdir"] = subdir

    return stat


def main():
    cmd = ["hg", "parent", "--template", "{node}"]
    commit_hash = list(run(cmd))[0]

    cmd = ["hg", "parent", "--template", "{date|shortdate}"]
    date = list(run(cmd))[0]

    files = new_files_struct()
    collect_jsm(files)
    collect_esm(files)

    stat = to_stat(files)
    stat["hash"] = commit_hash
    stat["date"] = date

    print(json.dumps(stat, indent=2))


if __name__ == "__main__":
    main()