Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 242 insertions, 0 deletions

diff --git a/tools/vcs/mach_commands.py b/tools/vcs/mach_commands.py
new file mode 100644
index 0000000000..4623a23634
--- /dev/null
+++ b/tools/vcs/mach_commands.py
@@ -0,0 +1,242 @@
+# 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 logging
+import os
+import re
+import subprocess
+import sys
+
+import mozpack.path as mozpath
+from mach.decorators import Command, CommandArgument
+
+GITHUB_ROOT = "https://github.com/"
+PR_REPOSITORIES = {
+    "webrender": {
+        "github": "servo/webrender",
+        "path": "gfx/wr",
+        "bugzilla_product": "Core",
+        "bugzilla_component": "Graphics: WebRender",
+    },
+    "webgpu": {
+        "github": "gfx-rs/wgpu",
+        "path": "gfx/wgpu",
+        "bugzilla_product": "Core",
+        "bugzilla_component": "Graphics: WebGPU",
+    },
+    "debugger": {
+        "github": "firefox-devtools/debugger",
+        "path": "devtools/client/debugger",
+        "bugzilla_product": "DevTools",
+        "bugzilla_component": "Debugger",
+    },
+}
+
+
+@Command(
+    "import-pr",
+    category="misc",
+    description="Import a pull request from Github to the local repo.",
+)
+@CommandArgument("-b", "--bug-number", help="Bug number to use in the commit messages.")
+@CommandArgument(
+    "-t",
+    "--bugzilla-token",
+    help="Bugzilla API token used to file a new bug if no bug number is provided.",
+)
+@CommandArgument("-r", "--reviewer", help="Reviewer nick to apply to commit messages.")
+@CommandArgument(
+    "pull_request",
+    help="URL to the pull request to import (e.g. "
+    "https://github.com/servo/webrender/pull/3665).",
+)
+def import_pr(
+    command_context,
+    pull_request,
+    bug_number=None,
+    bugzilla_token=None,
+    reviewer=None,
+):
+    import requests
+
+    pr_number = None
+    repository = None
+    for r in PR_REPOSITORIES.values():
+        if pull_request.startswith(GITHUB_ROOT + r["github"] + "/pull/"):
+            # sanitize URL, dropping anything after the PR number
+            pr_number = int(re.search("/pull/([0-9]+)", pull_request).group(1))
+            pull_request = GITHUB_ROOT + r["github"] + "/pull/" + str(pr_number)
+            repository = r
+            break
+
+    if repository is None:
+        command_context.log(
+            logging.ERROR,
+            "unrecognized_repo",
+            {},
+            "The pull request URL was not recognized; add it to the list of "
+            "recognized repos in PR_REPOSITORIES in %s" % __file__,
+        )
+        sys.exit(1)
+
+    command_context.log(
+        logging.INFO,
+        "import_pr",
+        {"pr_url": pull_request},
+        "Attempting to import {pr_url}",
+    )
+    dirty = [
+        f
+        for f in command_context.repository.get_changed_files(mode="all")
+        if f.startswith(repository["path"])
+    ]
+    if dirty:
+        command_context.log(
+            logging.ERROR,
+            "dirty_tree",
+            repository,
+            "Local {path} tree is dirty; aborting!",
+        )
+        sys.exit(1)
+    target_dir = mozpath.join(
+        command_context.topsrcdir, os.path.normpath(repository["path"])
+    )
+
+    if bug_number is None:
+        if bugzilla_token is None:
+            command_context.log(
+                logging.WARNING,
+                "no_token",
+                {},
+                "No bug number or bugzilla API token provided; bug number will not "
+                "be added to commit messages.",
+            )
+        else:
+            bug_number = _file_bug(
+                command_context, bugzilla_token, repository, pr_number
+            )
+    elif bugzilla_token is not None:
+        command_context.log(
+            logging.WARNING,
+            "too_much_bug",
+            {},
+            "Providing a bugzilla token is unnecessary when a bug number is provided. "
+            "Using bug number; ignoring token.",
+        )
+
+    pr_patch = requests.get(pull_request + ".patch")
+    pr_patch.raise_for_status()
+    for patch in _split_patches(pr_patch.content, bug_number, pull_request, reviewer):
+        command_context.log(
+            logging.INFO,
+            "commit_msg",
+            patch,
+            "Processing commit [{commit_summary}] by [{author}] at [{date}]",
+        )
+        patch_cmd = subprocess.Popen(
+            ["patch", "-p1", "-s"], stdin=subprocess.PIPE, cwd=target_dir
+        )
+        patch_cmd.stdin.write(patch["diff"].encode("utf-8"))
+        patch_cmd.stdin.close()
+        patch_cmd.wait()
+        if patch_cmd.returncode != 0:
+            command_context.log(
+                logging.ERROR,
+                "commit_fail",
+                {},
+                'Error applying diff from commit via "patch -p1 -s". Aborting...',
+            )
+            sys.exit(patch_cmd.returncode)
+        command_context.repository.commit(
+            patch["commit_msg"], patch["author"], patch["date"], [target_dir]
+        )
+        command_context.log(logging.INFO, "commit_pass", {}, "Committed successfully.")
+
+
+def _file_bug(command_context, token, repo, pr_number):
+    import requests
+
+    bug = requests.post(
+        "https://bugzilla.mozilla.org/rest/bug?api_key=%s" % token,
+        json={
+            "product": repo["bugzilla_product"],
+            "component": repo["bugzilla_component"],
+            "summary": "Land %s#%s in mozilla-central" % (repo["github"], pr_number),
+            "version": "unspecified",
+        },
+    )
+    bug.raise_for_status()
+    command_context.log(logging.DEBUG, "new_bug", {}, bug.content)
+    bugnumber = json.loads(bug.content)["id"]
+    command_context.log(
+        logging.INFO, "new_bug", {"bugnumber": bugnumber}, "Filed bug {bugnumber}"
+    )
+    return bugnumber
+
+
+def _split_patches(patchfile, bug_number, pull_request, reviewer):
+    INITIAL = 0
+    HEADERS = 1
+    STAT_AND_DIFF = 2
+
+    patch = b""
+    state = INITIAL
+    for line in patchfile.splitlines():
+        if state == INITIAL:
+            if line.startswith(b"From "):
+                state = HEADERS
+        elif state == HEADERS:
+            patch += line + b"\n"
+            if line == b"---":
+                state = STAT_AND_DIFF
+        elif state == STAT_AND_DIFF:
+            if line.startswith(b"From "):
+                yield _parse_patch(patch, bug_number, pull_request, reviewer)
+                patch = b""
+                state = HEADERS
+            else:
+                patch += line + b"\n"
+    if len(patch) > 0:
+        yield _parse_patch(patch, bug_number, pull_request, reviewer)
+    return
+
+
+def _parse_patch(patch, bug_number, pull_request, reviewer):
+    import email
+    from email import header, policy
+
+    parse_policy = policy.compat32.clone(max_line_length=None)
+    parsed_mail = email.message_from_bytes(patch, policy=parse_policy)
+
+    def header_as_unicode(key):
+        decoded = header.decode_header(parsed_mail[key])
+        return str(header.make_header(decoded))
+
+    author = header_as_unicode("From")
+    date = header_as_unicode("Date")
+    commit_summary = header_as_unicode("Subject")
+    email_body = parsed_mail.get_payload(decode=True).decode("utf-8")
+    (commit_body, diff) = ("\n" + email_body).rsplit("\n---\n", 1)
+
+    bug_prefix = ""
+    if bug_number is not None:
+        bug_prefix = "Bug %s - " % bug_number
+    commit_summary = re.sub(r"^\[PATCH[0-9 /]*\] ", bug_prefix, commit_summary)
+    if reviewer is not None:
+        commit_summary += " r=" + reviewer
+
+    commit_msg = commit_summary + "\n"
+    if len(commit_body) > 0:
+        commit_msg += commit_body + "\n"
+    commit_msg += "\n[import_pr] From " + pull_request + "\n"
+
+    patch_obj = {
+        "author": author,
+        "date": date,
+        "commit_summary": commit_summary,
+        "commit_msg": commit_msg,
+        "diff": diff,
+    }
+    return patch_obj