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# 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/.
from __future__ import absolute_import, print_function
import json
import os
import sys
import six
from mozboot.util import get_state_dir
from mozbuild.base import MozbuildObject
from mozversioncontrol import get_repository_object, MissingVCSExtension
from .util.manage_estimates import (
download_task_history_data,
make_trimmed_taskgraph_cache,
)
from .util.estimates import duration_summary
GIT_CINNABAR_NOT_FOUND = """
Could not detect `git-cinnabar`.
The `mach try` command requires git-cinnabar to be installed when
pushing from git. Please install it by running:
$ ./mach vcs-setup
""".lstrip()
HG_PUSH_TO_TRY_NOT_FOUND = """
Could not detect `push-to-try`.
The `mach try` command requires the push-to-try extension enabled
when pushing from hg. Please install it by running:
$ ./mach vcs-setup
""".lstrip()
VCS_NOT_FOUND = """
Could not detect version control. Only `hg` or `git` are supported.
""".strip()
UNCOMMITTED_CHANGES = """
ERROR please commit changes before continuing
""".strip()
MAX_HISTORY = 10
here = os.path.abspath(os.path.dirname(__file__))
build = MozbuildObject.from_environment(cwd=here)
vcs = get_repository_object(build.topsrcdir)
history_path = os.path.join(
get_state_dir(srcdir=True), "history", "try_task_configs.json"
)
def write_task_config(try_task_config):
config_path = os.path.join(vcs.path, "try_task_config.json")
with open(config_path, "w") as fh:
json.dump(try_task_config, fh, indent=4, separators=(",", ": "), sort_keys=True)
fh.write("\n")
return config_path
def write_task_config_history(msg, try_task_config):
if not os.path.isfile(history_path):
if not os.path.isdir(os.path.dirname(history_path)):
os.makedirs(os.path.dirname(history_path))
history = []
else:
with open(history_path, "r") as fh:
history = fh.read().strip().splitlines()
history.insert(0, json.dumps([msg, try_task_config]))
history = history[:MAX_HISTORY]
with open(history_path, "w") as fh:
fh.write("\n".join(history))
def check_working_directory(push=True):
if not push:
return
if not vcs.working_directory_clean():
print(UNCOMMITTED_CHANGES)
sys.exit(1)
def generate_try_task_config(method, labels, try_config=None, routes=None):
try_task_config = try_config or {}
try_task_config.setdefault("env", {})["TRY_SELECTOR"] = method
try_task_config.update(
{
"version": 1,
"tasks": sorted(labels),
}
)
if routes:
try_task_config["routes"] = routes
return try_task_config
def task_labels_from_try_config(try_task_config):
if try_task_config["version"] == 2:
parameters = try_task_config.get("parameters", {})
if parameters.get("try_mode") == "try_task_config":
return parameters["try_task_config"]["tasks"]
else:
return None
elif try_task_config["version"] == 1:
return try_task_config.get("tasks", list())
else:
return None
def display_push_estimates(try_task_config):
task_labels = task_labels_from_try_config(try_task_config)
if task_labels is None:
return
cache_dir = os.path.join(get_state_dir(srcdir=True), "cache", "taskgraph")
graph_cache = None
dep_cache = None
target_file = None
for graph_cache_file in ["target_task_graph", "full_task_graph"]:
graph_cache = os.path.join(cache_dir, graph_cache_file)
if os.path.isfile(graph_cache):
dep_cache = graph_cache.replace("task_graph", "task_dependencies")
target_file = graph_cache.replace("task_graph", "task_set")
break
if not dep_cache:
return
download_task_history_data(cache_dir=cache_dir)
make_trimmed_taskgraph_cache(graph_cache, dep_cache, target_file=target_file)
durations = duration_summary(dep_cache, task_labels, cache_dir)
print(
"estimates: Runs {} tasks ({} selected, {} dependencies)".format(
durations["dependency_count"] + durations["selected_count"],
durations["selected_count"],
durations["dependency_count"],
)
)
print(
"estimates: Total task duration {}".format(
durations["dependency_duration"] + durations["selected_duration"]
)
)
print("estimates: In the {}% percentile".format(durations["quantile"]))
print(
"estimates: Should take about {} (Finished around {})".format(
durations["wall_duration_seconds"],
durations["eta_datetime"].strftime("%Y-%m-%d %H:%M"),
)
)
def push_to_try(
method,
msg,
try_task_config=None,
push=True,
closed_tree=False,
files_to_change=None,
):
check_working_directory(push)
if try_task_config and method not in ("auto", "empty"):
display_push_estimates(try_task_config)
# Format the commit message
closed_tree_string = " ON A CLOSED TREE" if closed_tree else ""
commit_message = "%s%s\n\nPushed via `mach try %s`" % (
msg,
closed_tree_string,
method,
)
config_path = None
changed_files = []
if try_task_config:
if push and method not in ("again", "auto", "empty"):
write_task_config_history(msg, try_task_config)
config_path = write_task_config(try_task_config)
changed_files.append(config_path)
if files_to_change:
for path, content in files_to_change.items():
path = os.path.join(vcs.path, path)
with open(path, "wb") as fh:
fh.write(six.ensure_binary(content))
changed_files.append(path)
try:
if not push:
print("Commit message:")
print(commit_message)
if config_path:
print("Calculated try_task_config.json:")
with open(config_path) as fh:
print(fh.read())
return
vcs.add_remove_files(*changed_files)
try:
vcs.push_to_try(commit_message)
except MissingVCSExtension as e:
if e.ext == "push-to-try":
print(HG_PUSH_TO_TRY_NOT_FOUND)
elif e.ext == "cinnabar":
print(GIT_CINNABAR_NOT_FOUND)
else:
raise
sys.exit(1)
finally:
if config_path and os.path.isfile(config_path):
os.remove(config_path)
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