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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 mozterm import Terminal
from ..result import Issue
from ..util.string import pluralize
class StylishFormatter(object):
"""Formatter based on the eslint default."""
_indent_ = " "
# Colors later on in the list are fallbacks in case the terminal
# doesn't support colors earlier in the list.
# See http://www.calmar.ws/vim/256-xterm-24bit-rgb-color-chart.html
_colors = {
"grey": [247, 8, 7],
"red": [1],
"green": [2],
"yellow": [3],
"brightred": [9, 1],
"brightyellow": [11, 3],
}
fmt = """
{c1}{lineno}{column} {c2}{level}{normal} {message} {c1}{rule}({linter}){normal}
{diff}""".lstrip(
"\n"
)
fmt_summary = (
"{t.bold}{c}\u2716 {problem} ({error}, {warning}{failure}, {fixed}){t.normal}"
)
def __init__(self, disable_colors=False):
self.term = Terminal(disable_styling=disable_colors)
self.num_colors = self.term.number_of_colors
def color(self, color):
for num in self._colors[color]:
if num < self.num_colors:
return self.term.color(num)
return ""
def _reset_max(self):
self.max_lineno = 0
self.max_column = 0
self.max_level = 0
self.max_message = 0
def _update_max(self, err):
"""Calculates the longest length of each token for spacing."""
self.max_lineno = max(self.max_lineno, len(str(err.lineno)))
if err.column:
self.max_column = max(self.max_column, len(str(err.column)))
self.max_level = max(self.max_level, len(str(err.level)))
self.max_message = max(self.max_message, len(err.message))
def _get_colored_diff(self, diff):
if not diff:
return ""
new_diff = ""
for line in diff.split("\n"):
if line.startswith("+"):
new_diff += self.color("green")
elif line.startswith("-"):
new_diff += self.color("red")
else:
new_diff += self.term.normal
new_diff += self._indent_ + line + "\n"
return new_diff
def __call__(self, result):
message = []
failed = result.failed
num_errors = 0
num_warnings = 0
num_fixed = result.fixed
for path, errors in sorted(result.issues.items()):
self._reset_max()
message.append(self.term.underline(path))
# Do a first pass to calculate required padding
for err in errors:
assert isinstance(err, Issue)
self._update_max(err)
if err.level == "error":
num_errors += 1
else:
num_warnings += 1
for err in sorted(
errors, key=lambda e: (int(e.lineno), int(e.column or 0))
):
if err.column:
col = ":" + str(err.column).ljust(self.max_column)
else:
col = "".ljust(self.max_column + 1)
args = {
"normal": self.term.normal,
"c1": self.color("grey"),
"c2": self.color("red")
if err.level == "error"
else self.color("yellow"),
"lineno": str(err.lineno).rjust(self.max_lineno),
"column": col,
"level": err.level.ljust(self.max_level),
"rule": "{} ".format(err.rule) if err.rule else "",
"linter": err.linter.lower(),
"message": err.message.ljust(self.max_message),
"diff": self._get_colored_diff(err.diff).ljust(self.max_message),
}
message.append(self.fmt.format(**args).rstrip().rstrip("\n"))
message.append("") # newline
# If there were failures, make it clear which linters failed
for fail in failed:
message.append(
"{c}A failure occurred in the {name} linter.".format(
c=self.color("brightred"), name=fail
)
)
# Print a summary
message.append(
self.fmt_summary.format(
t=self.term,
c=self.color("brightred")
if num_errors or failed
else self.color("brightyellow"),
problem=pluralize("problem", num_errors + num_warnings + len(failed)),
error=pluralize("error", num_errors),
warning=pluralize(
"warning", num_warnings or result.total_suppressed_warnings
),
failure=", {}".format(pluralize("failure", len(failed)))
if failed
else "",
fixed="{} fixed".format(num_fixed),
)
)
if result.total_suppressed_warnings > 0 and num_errors == 0:
message.append(
"(pass {c1}-W/--warnings{c2} to see warnings.)".format(
c1=self.color("grey"), c2=self.term.normal
)
)
return "\n".join(message)
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