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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /python/mozboot/bin
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'python/mozboot/bin')
-rwxr-xr-xpython/mozboot/bin/bootstrap.py439
1 files changed, 439 insertions, 0 deletions
diff --git a/python/mozboot/bin/bootstrap.py b/python/mozboot/bin/bootstrap.py
new file mode 100755
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+++ b/python/mozboot/bin/bootstrap.py
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+#!/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/.
+
+# This script provides one-line bootstrap support to configure systems to build
+# the tree. It does so by cloning the repo before calling directly into `mach
+# bootstrap`.
+
+# Note that this script can't assume anything in particular about the host
+# Python environment (except that it's run with a sufficiently recent version of
+# Python 3), so we are restricted to stdlib modules.
+
+import sys
+
+major, minor = sys.version_info[:2]
+if (major < 3) or (major == 3 and minor < 6):
+ print(
+ "Bootstrap currently only runs on Python 3.6+."
+ "Please try re-running with python3.6+."
+ )
+ sys.exit(1)
+
+import ctypes
+import os
+import shutil
+import subprocess
+import tempfile
+from optparse import OptionParser
+from pathlib import Path
+
+CLONE_MERCURIAL_PULL_FAIL = """
+Failed to pull from hg.mozilla.org.
+
+This is most likely because of unstable network connection.
+Try running `cd %s && hg pull https://hg.mozilla.org/mozilla-unified` manually,
+or download a mercurial bundle and use it:
+https://firefox-source-docs.mozilla.org/contributing/vcs/mercurial_bundles.html"""
+
+WINDOWS = sys.platform.startswith("win32") or sys.platform.startswith("msys")
+VCS_HUMAN_READABLE = {
+ "hg": "Mercurial",
+ "git": "Git",
+}
+
+
+def which(name):
+ """Python implementation of which.
+
+ It returns the path of an executable or None if it couldn't be found.
+ """
+ search_dirs = os.environ["PATH"].split(os.pathsep)
+ potential_names = [name]
+ if WINDOWS:
+ potential_names.insert(0, name + ".exe")
+
+ for path in search_dirs:
+ for executable_name in potential_names:
+ test = Path(path) / executable_name
+ if test.is_file() and os.access(test, os.X_OK):
+ return test
+
+ return None
+
+
+def validate_clone_dest(dest: Path):
+ dest = dest.resolve()
+
+ if not dest.exists():
+ return dest
+
+ if not dest.is_dir():
+ print(f"ERROR! Destination {dest} exists but is not a directory.")
+ return None
+
+ if not any(dest.iterdir()):
+ return dest
+ else:
+ print(f"ERROR! Destination directory {dest} exists but is nonempty.")
+ print(
+ f"To re-bootstrap the existing checkout, go into '{dest}' and run './mach bootstrap'."
+ )
+ return None
+
+
+def input_clone_dest(vcs, no_interactive):
+ repo_name = "mozilla-unified"
+ print(f"Cloning into {repo_name} using {VCS_HUMAN_READABLE[vcs]}...")
+ while True:
+ dest = None
+ if not no_interactive:
+ dest = input(
+ f"Destination directory for clone (leave empty to use "
+ f"default destination of {repo_name}): "
+ ).strip()
+ if not dest:
+ dest = repo_name
+ dest = validate_clone_dest(Path(dest).expanduser())
+ if dest:
+ return dest
+ if no_interactive:
+ return None
+
+
+def hg_clone_firefox(hg: Path, dest: Path, head_repo, head_rev):
+ # We create an empty repo then modify the config before adding data.
+ # This is necessary to ensure storage settings are optimally
+ # configured.
+ args = [
+ str(hg),
+ # The unified repo is generaldelta, so ensure the client is as
+ # well.
+ "--config",
+ "format.generaldelta=true",
+ "init",
+ str(dest),
+ ]
+ res = subprocess.call(args)
+ if res:
+ print("unable to create destination repo; please try cloning manually")
+ return None
+
+ # Strictly speaking, this could overwrite a config based on a template
+ # the user has installed. Let's pretend this problem doesn't exist
+ # unless someone complains about it.
+ with open(dest / ".hg" / "hgrc", "a") as fh:
+ fh.write("[paths]\n")
+ fh.write("default = https://hg.mozilla.org/mozilla-unified\n")
+ fh.write("\n")
+
+ # The server uses aggressivemergedeltas which can blow up delta chain
+ # length. This can cause performance to tank due to delta chains being
+ # too long. Limit the delta chain length to something reasonable
+ # to bound revlog read time.
+ fh.write("[format]\n")
+ fh.write("# This is necessary to keep performance in check\n")
+ fh.write("maxchainlen = 10000\n")
+
+ # Pulling a specific revision into an empty repository induces a lot of
+ # load on the Mercurial server, so we always pull from mozilla-unified (which,
+ # when done from an empty repository, is equivalent to a clone), and then pull
+ # the specific revision we want (if we want a specific one, otherwise we just
+ # use the "central" bookmark), at which point it will be an incremental pull,
+ # that the server can process more easily.
+ # This is the same thing that robustcheckout does on automation.
+ res = subprocess.call(
+ [str(hg), "pull", "https://hg.mozilla.org/mozilla-unified"], cwd=str(dest)
+ )
+ if not res and head_repo:
+ res = subprocess.call(
+ [str(hg), "pull", head_repo, "-r", head_rev], cwd=str(dest)
+ )
+ print("")
+ if res:
+ print(CLONE_MERCURIAL_PULL_FAIL % dest)
+ return None
+
+ head_rev = head_rev or "central"
+ print(f'updating to "{head_rev}" - the development head of Gecko and Firefox')
+ res = subprocess.call([str(hg), "update", "-r", head_rev], cwd=str(dest))
+ if res:
+ print(
+ f"error updating; you will need to `cd {dest} && hg update -r central` "
+ "manually"
+ )
+ return dest
+
+
+def git_clone_firefox(git: Path, dest: Path, watchman: Path, head_repo, head_rev):
+ tempdir = None
+ cinnabar = None
+ env = dict(os.environ)
+ try:
+ cinnabar = which("git-cinnabar")
+ if not cinnabar:
+ from urllib.request import urlopen
+
+ cinnabar_url = "https://github.com/glandium/git-cinnabar/"
+ # If git-cinnabar isn't installed already, that's fine; we can
+ # download a temporary copy. `mach bootstrap` will install a copy
+ # in the state dir; we don't want to copy all that logic to this
+ # tiny bootstrapping script.
+ tempdir = Path(tempfile.mkdtemp())
+ with open(tempdir / "download.py", "wb") as fh:
+ shutil.copyfileobj(
+ urlopen(f"{cinnabar_url}/raw/master/download.py"), fh
+ )
+
+ subprocess.check_call(
+ [sys.executable, str(tempdir / "download.py")],
+ cwd=str(tempdir),
+ )
+ env["PATH"] = str(tempdir) + os.pathsep + env["PATH"]
+ print(
+ "WARNING! git-cinnabar is required for Firefox development "
+ "with git. After the clone is complete, the bootstrapper "
+ "will ask if you would like to configure git; answer yes, "
+ "and be sure to add git-cinnabar to your PATH according to "
+ "the bootstrapper output."
+ )
+
+ # We're guaranteed to have `git-cinnabar` installed now.
+ # Configure git per the git-cinnabar requirements.
+ subprocess.check_call(
+ [
+ str(git),
+ "clone",
+ "--no-checkout",
+ "hg::https://hg.mozilla.org/mozilla-unified",
+ str(dest),
+ ],
+ env=env,
+ )
+ subprocess.check_call(
+ [str(git), "config", "fetch.prune", "true"], cwd=str(dest), env=env
+ )
+ subprocess.check_call(
+ [str(git), "config", "pull.ff", "only"], cwd=str(dest), env=env
+ )
+
+ if head_repo:
+ subprocess.check_call(
+ [str(git), "cinnabar", "fetch", f"hg::{head_repo}", head_rev],
+ cwd=str(dest),
+ env=env,
+ )
+
+ subprocess.check_call(
+ [str(git), "checkout", "FETCH_HEAD" if head_rev else "bookmarks/central"],
+ cwd=str(dest),
+ env=env,
+ )
+
+ watchman_sample = dest / ".git/hooks/fsmonitor-watchman.sample"
+ # Older versions of git didn't include fsmonitor-watchman.sample.
+ if watchman and watchman_sample.exists():
+ print("Configuring watchman")
+ watchman_config = dest / ".git/hooks/query-watchman"
+ if not watchman_config.exists():
+ print(f"Copying {watchman_sample} to {watchman_config}")
+ copy_args = [
+ "cp",
+ ".git/hooks/fsmonitor-watchman.sample",
+ ".git/hooks/query-watchman",
+ ]
+ subprocess.check_call(copy_args, cwd=str(dest))
+
+ config_args = [
+ str(git),
+ "config",
+ "core.fsmonitor",
+ ".git/hooks/query-watchman",
+ ]
+ subprocess.check_call(config_args, cwd=str(dest), env=env)
+ return dest
+ finally:
+ if tempdir:
+ shutil.rmtree(str(tempdir))
+
+
+def add_microsoft_defender_antivirus_exclusions(dest, no_system_changes):
+ if no_system_changes:
+ return
+
+ if not WINDOWS:
+ return
+
+ powershell_exe = which("powershell")
+
+ if not powershell_exe:
+ return
+
+ def print_attempt_exclusion(path):
+ print(
+ f"Attempting to add exclusion path to Microsoft Defender Antivirus for: {path}"
+ )
+
+ powershell_exe = str(powershell_exe)
+ paths = []
+
+ # mozilla-unified / clone dest
+ repo_dir = Path.cwd() / dest
+ paths.append(repo_dir)
+ print_attempt_exclusion(repo_dir)
+
+ # MOZILLABUILD
+ mozillabuild_dir = os.getenv("MOZILLABUILD")
+ if mozillabuild_dir:
+ paths.append(mozillabuild_dir)
+ print_attempt_exclusion(mozillabuild_dir)
+
+ # .mozbuild
+ mozbuild_dir = Path.home() / ".mozbuild"
+ paths.append(mozbuild_dir)
+ print_attempt_exclusion(mozbuild_dir)
+
+ args = ";".join(f"Add-MpPreference -ExclusionPath '{path}'" for path in paths)
+ command = f'-Command "{args}"'
+
+ # This will attempt to run as administrator by triggering a UAC prompt
+ # for admin credentials. If "No" is selected, no exclusions are added.
+ ctypes.windll.shell32.ShellExecuteW(None, "runas", powershell_exe, command, None, 0)
+
+
+def clone(options):
+ vcs = options.vcs
+ no_interactive = options.no_interactive
+ no_system_changes = options.no_system_changes
+
+ if vcs == "hg":
+ hg = which("hg")
+ if not hg:
+ print("Mercurial is not installed. Mercurial is required to clone Firefox.")
+ try:
+ # We're going to recommend people install the Mercurial package with
+ # pip3. That will work if `pip3` installs binaries to a location
+ # that's in the PATH, but it might not be. To help out, if we CAN
+ # import "mercurial" (in which case it's already been installed),
+ # offer that as a solution.
+ import mercurial # noqa: F401
+
+ print(
+ "Hint: have you made sure that Mercurial is installed to a "
+ "location in your PATH?"
+ )
+ except ImportError:
+ print("Try installing hg with `pip3 install Mercurial`.")
+ return None
+ binary = hg
+ else:
+ binary = which(vcs)
+ if not binary:
+ print("Git is not installed.")
+ print("Try installing git using your system package manager.")
+ return None
+
+ dest = input_clone_dest(vcs, no_interactive)
+ if not dest:
+ return None
+
+ add_microsoft_defender_antivirus_exclusions(dest, no_system_changes)
+
+ print(f"Cloning Firefox {VCS_HUMAN_READABLE[vcs]} repository to {dest}")
+
+ head_repo = os.environ.get("GECKO_HEAD_REPOSITORY")
+ head_rev = os.environ.get("GECKO_HEAD_REV")
+
+ if vcs == "hg":
+ return hg_clone_firefox(binary, dest, head_repo, head_rev)
+ else:
+ watchman = which("watchman")
+ return git_clone_firefox(binary, dest, watchman, head_repo, head_rev)
+
+
+def bootstrap(srcdir: Path, application_choice, no_interactive, no_system_changes):
+ args = [sys.executable, "mach"]
+
+ if no_interactive:
+ # --no-interactive is a global argument, not a command argument,
+ # so it needs to be specified before "bootstrap" is appended.
+ args += ["--no-interactive"]
+
+ args += ["bootstrap"]
+
+ if application_choice:
+ args += ["--application-choice", application_choice]
+ if no_system_changes:
+ args += ["--no-system-changes"]
+
+ print("Running `%s`" % " ".join(args))
+ return subprocess.call(args, cwd=str(srcdir))
+
+
+def main(args):
+ parser = OptionParser()
+ parser.add_option(
+ "--application-choice",
+ dest="application_choice",
+ help='Pass in an application choice (see "APPLICATIONS" in '
+ "python/mozboot/mozboot/bootstrap.py) instead of using the "
+ "default interactive prompt.",
+ )
+ parser.add_option(
+ "--vcs",
+ dest="vcs",
+ default="hg",
+ choices=["git", "hg"],
+ help="VCS (hg or git) to use for downloading the source code, "
+ "instead of using the default interactive prompt.",
+ )
+ parser.add_option(
+ "--no-interactive",
+ dest="no_interactive",
+ action="store_true",
+ help="Answer yes to any (Y/n) interactive prompts.",
+ )
+ parser.add_option(
+ "--no-system-changes",
+ dest="no_system_changes",
+ action="store_true",
+ help="Only executes actions that leave the system " "configuration alone.",
+ )
+
+ options, leftover = parser.parse_args(args)
+ try:
+ srcdir = clone(options)
+ if not srcdir:
+ return 1
+ print("Clone complete.")
+ print(
+ "If you need to run the tooling bootstrapping again, "
+ "then consider running './mach bootstrap' instead."
+ )
+ if not options.no_interactive:
+ remove_bootstrap_file = input(
+ "Unless you are going to have more local copies of Firefox source code, "
+ "this 'bootstrap.py' file is no longer needed and can be deleted. "
+ "Clean up the bootstrap.py file? (Y/n)"
+ )
+ if not remove_bootstrap_file:
+ remove_bootstrap_file = "y"
+ if options.no_interactive or remove_bootstrap_file == "y":
+ try:
+ Path(sys.argv[0]).unlink()
+ except FileNotFoundError:
+ print("File could not be found !")
+ return bootstrap(
+ srcdir,
+ options.application_choice,
+ options.no_interactive,
+ options.no_system_changes,
+ )
+ except Exception:
+ print("Could not bootstrap Firefox! Consider filing a bug.")
+ raise
+
+
+if __name__ == "__main__":
+ sys.exit(main(sys.argv))