@click.argument(
'src',
nargs=-1,
- type=click.Path(exists=True, file_okay=True, dir_okay=True, readable=True),
+ type=click.Path(
+ exists=True, file_okay=True, dir_okay=True, readable=True, allow_dash=True
+ ),
)
@click.pass_context
def main(
elif p.is_file():
# if a file was explicitly given, we don't care about its extension
sources.append(p)
+ elif s == '-':
+ sources.append(Path('-'))
else:
err(f'invalid path: {s}')
if len(sources) == 0:
p = sources[0]
report = Report()
try:
- changed = format_file_in_place(
- p, line_length=line_length, fast=fast, write_back=not check
- )
+ if not p.is_file() and str(p) == '-':
+ changed = format_stdin_to_stdout(line_length=line_length, fast=fast)
+ else:
+ changed = format_file_in_place(
+ p, line_length=line_length, fast=fast, write_back=not check
+ )
report.done(p, changed)
except Exception as exc:
report.failed(p, str(exc))
src: Path, line_length: int, fast: bool, write_back: bool = False
) -> bool:
"""Format the file and rewrite if changed. Return True if changed."""
+ with tokenize.open(src) as src_buffer:
+ src_contents = src_buffer.read()
try:
- contents, encoding = format_file(src, line_length=line_length, fast=fast)
+ contents = format_file_contents(
+ src_contents, line_length=line_length, fast=fast
+ )
except NothingChanged:
return False
if write_back:
- with open(src, "w", encoding=encoding) as f:
+ with open(src, "w", encoding=src_buffer.encoding) as f:
f.write(contents)
return True
-def format_file(
- src: Path, line_length: int, fast: bool
-) -> Tuple[FileContent, Encoding]:
+def format_stdin_to_stdout(line_length: int, fast: bool) -> bool:
+ """Format file on stdin and pipe output to stdout. Return True if changed."""
+ contents = sys.stdin.read()
+ try:
+ contents = format_file_contents(contents, line_length=line_length, fast=fast)
+ return True
+
+ except NothingChanged:
+ return False
+
+ finally:
+ sys.stdout.write(contents)
+
+
+def format_file_contents(
+ src_contents: str, line_length: int, fast: bool
+) -> FileContent:
"""Reformats a file and returns its contents and encoding."""
- with tokenize.open(src) as src_buffer:
- src_contents = src_buffer.read()
if src_contents.strip() == '':
- raise NothingChanged(src)
+ raise NothingChanged
dst_contents = format_str(src_contents, line_length=line_length)
if src_contents == dst_contents:
- raise NothingChanged(src)
+ raise NothingChanged
if not fast:
assert_equivalent(src_contents, dst_contents)
assert_stable(src_contents, dst_contents, line_length=line_length)
- return dst_contents, src_buffer.encoding
+ return dst_contents
def format_str(src_contents: str, line_length: int) -> FileContent:
dst_contents += str(line)
else:
comments.append(current_line)
- for comment in comments:
- dst_contents += str(comment)
+ if comments:
+ if elt.previous_defs:
+ # Separate postscriptum comments from the last module-level def.
+ dst_contents += str(empty_line)
+ dst_contents += str(empty_line)
+ for comment in comments:
+ dst_contents += str(comment)
return dst_contents
if leaf.type == token.STRING and self.previous.type == token.STRING:
self.delimiters[id(self.previous)] = STRING_PRIORITY
elif (
- leaf.type == token.NAME and
- leaf.value == 'for' and
- leaf.parent and
- leaf.parent.type in {syms.comp_for, syms.old_comp_for}
+ leaf.type == token.NAME
+ and leaf.value == 'for'
+ and leaf.parent
+ and leaf.parent.type in {syms.comp_for, syms.old_comp_for}
):
self.delimiters[id(self.previous)] = COMPREHENSION_PRIORITY
elif (
- leaf.type == token.NAME and
- leaf.value == 'if' and
- leaf.parent and
- leaf.parent.type in {syms.comp_if, syms.old_comp_if}
+ leaf.type == token.NAME
+ and leaf.value == 'if'
+ and leaf.parent
+ and leaf.parent.type in {syms.comp_if, syms.old_comp_if}
):
self.delimiters[id(self.previous)] = COMPREHENSION_PRIORITY
+ elif (
+ leaf.type == token.NAME
+ and leaf.value in LOGIC_OPERATORS
+ and leaf.parent
+ ):
+ self.delimiters[id(self.previous)] = LOGIC_PRIORITY
if leaf.type in OPENING_BRACKETS:
self.bracket_match[self.depth, BRACKET[leaf.type]] = leaf
self.depth += 1
@property
def is_class(self) -> bool:
return (
- bool(self) and
- self.leaves[0].type == token.NAME and
- self.leaves[0].value == 'class'
+ bool(self)
+ and self.leaves[0].type == token.NAME
+ and self.leaves[0].value == 'class'
)
@property
except IndexError:
second_leaf = None
return (
- (first_leaf.type == token.NAME and first_leaf.value == 'def') or
- (
- first_leaf.type == token.NAME and
- first_leaf.value == 'async' and
- second_leaf is not None and
- second_leaf.type == token.NAME and
- second_leaf.value == 'def'
+ (first_leaf.type == token.NAME and first_leaf.value == 'def')
+ or (
+ first_leaf.type == token.NAME
+ and first_leaf.value == 'async'
+ and second_leaf is not None
+ and second_leaf.type == token.NAME
+ and second_leaf.value == 'def'
)
)
@property
def is_flow_control(self) -> bool:
return (
- bool(self) and
- self.leaves[0].type == token.NAME and
- self.leaves[0].value in FLOW_CONTROL
+ bool(self)
+ and self.leaves[0].type == token.NAME
+ and self.leaves[0].value in FLOW_CONTROL
)
@property
def is_yield(self) -> bool:
return (
- bool(self) and
- self.leaves[0].type == token.NAME and
- self.leaves[0].value == 'yield'
+ bool(self)
+ and self.leaves[0].type == token.NAME
+ and self.leaves[0].value == 'yield'
)
def maybe_remove_trailing_comma(self, closing: Leaf) -> bool:
if not (
- self.leaves and
- self.leaves[-1].type == token.COMMA and
- closing.type in CLOSING_BRACKETS
+ self.leaves
+ and self.leaves[-1].type == token.COMMA
+ and closing.type in CLOSING_BRACKETS
):
return False
appended will appear "too long" when splitting.
"""
if not (
- comment.type == STANDALONE_COMMENT and
- self.bracket_tracker.any_open_brackets()
+ comment.type == STANDALONE_COMMENT
+ and self.bracket_tracker.any_open_brackets()
):
return False
"""Provides a stateful method that returns the number of potential extra
empty lines needed before and after the currently processed line.
- Note: this tracker works on lines that haven't been split yet.
+ Note: this tracker works on lines that haven't been split yet. It assumes
+ the prefix of the first leaf consists of optional newlines. Those newlines
+ are consumed by `maybe_empty_lines()` and included in the computation.
"""
previous_line: Optional[Line] = None
previous_after: int = 0
(two on module-level), as well as providing an extra empty line after flow
control keywords to make them more prominent.
"""
+ if current_line.is_comment:
+ # Don't count standalone comments towards previous empty lines.
+ return 0, 0
+
before, after = self._maybe_empty_lines(current_line)
+ before -= self.previous_after
self.previous_after = after
self.previous_line = current_line
return before, after
def _maybe_empty_lines(self, current_line: Line) -> Tuple[int, int]:
- before = 0
+ if current_line.leaves:
+ # Consume the first leaf's extra newlines.
+ first_leaf = current_line.leaves[0]
+ before = int('\n' in first_leaf.prefix)
+ first_leaf.prefix = ''
+ else:
+ before = 0
depth = current_line.depth
while self.previous_defs and self.previous_defs[-1] >= depth:
self.previous_defs.pop()
- before = (1 if depth else 2) - self.previous_after
+ before = 1 if depth else 2
is_decorator = current_line.is_decorator
if is_decorator or current_line.is_def or current_line.is_class:
if not is_decorator:
newlines = 2
if current_line.depth:
newlines -= 1
- newlines -= self.previous_after
return newlines, 0
if current_line.is_flow_control:
return before, 1
if (
- self.previous_line and
- self.previous_line.is_import and
- not current_line.is_import and
- depth == self.previous_line.depth
+ self.previous_line
+ and self.previous_line.is_import
+ and not current_line.is_import
+ and depth == self.previous_line.depth
):
return (before or 1), 0
if (
- self.previous_line and
- self.previous_line.is_yield and
- (not current_line.is_yield or depth != self.previous_line.depth)
+ self.previous_line
+ and self.previous_line.is_yield
+ and (not current_line.is_yield or depth != self.previous_line.depth)
):
return (before or 1), 0
OPENING_BRACKETS = set(BRACKET.keys())
CLOSING_BRACKETS = set(BRACKET.values())
BRACKETS = OPENING_BRACKETS | CLOSING_BRACKETS
-ALWAYS_NO_SPACE = CLOSING_BRACKETS | {token.COMMA, token.COLON, STANDALONE_COMMENT}
+ALWAYS_NO_SPACE = CLOSING_BRACKETS | {token.COMMA, STANDALONE_COMMENT}
def whitespace(leaf: Leaf) -> str: # noqa C901
return DOUBLESPACE
assert p is not None, f"INTERNAL ERROR: hand-made leaf without parent: {leaf!r}"
+ if t == token.COLON and p.type != syms.subscript:
+ return NO
+
prev = leaf.prev_sibling
if not prev:
prevp = preceding_leaf(p)
if not prevp or prevp.type in OPENING_BRACKETS:
return NO
+ if t == token.COLON:
+ return SPACE if prevp.type == token.COMMA else NO
+
if prevp.type == token.EQUAL:
if prevp.parent and prevp.parent.type in {
syms.typedargslist,
return NO
- elif prev.type == token.COLON:
+ else:
return NO
elif p.type == syms.atom:
return NO
elif (
- p.type == syms.listmaker or
- p.type == syms.testlist_gexp or
- p.type == syms.subscriptlist
+ p.type == syms.listmaker
+ or p.type == syms.testlist_gexp
+ or p.type == syms.subscriptlist
):
# list interior, including unpacking
if not prev:
if leaf.type == token.COMMA:
return COMMA_PRIORITY
- if leaf.type == token.NAME and leaf.value in LOGIC_OPERATORS:
- return LOGIC_PRIORITY
-
if leaf.type in COMPARATORS:
return COMPARATOR_PRIORITY
if (
- leaf.type in MATH_OPERATORS and
- leaf.parent and
- leaf.parent.type not in {syms.factor, syms.star_expr}
+ leaf.type in MATH_OPERATORS
+ and leaf.parent
+ and leaf.parent.type not in {syms.factor, syms.star_expr}
):
return MATH_PRIORITY
if content and (content[0] not in {' ', '!', '#'}):
content = ' ' + content
is_standalone_comment = (
- '\n' in before_comment or '\n' in content or leaf.type == token.DEDENT
+ '\n' in before_comment or '\n' in content or leaf.type == token.ENDMARKER
)
if not is_standalone_comment:
# simple trailing comment
matching_bracket = None
for leaf in line.leaves:
if (
- current_leaves is body_leaves and
- leaf.type in CLOSING_BRACKETS and
- leaf.opening_bracket is matching_bracket
+ current_leaves is body_leaves
+ and leaf.type in CLOSING_BRACKETS
+ and leaf.opening_bracket is matching_bracket
):
current_leaves = tail_leaves if body_leaves else head_leaves
current_leaves.append(leaf)
current_line.append(comment_after, preformatted=True)
lowest_depth = min(lowest_depth, leaf.bracket_depth)
if (
- leaf.bracket_depth == lowest_depth and
- leaf.type == token.STAR or
- leaf.type == token.DOUBLESTAR
+ leaf.bracket_depth == lowest_depth
+ and leaf.type == token.STAR
+ or leaf.type == token.DOUBLESTAR
):
trailing_comma_safe = trailing_comma_safe and py36
leaf_priority = delimiters.get(id(leaf))
current_line = Line(depth=line.depth, inside_brackets=line.inside_brackets)
if current_line:
if (
- delimiter_priority == COMMA_PRIORITY and
- current_line.leaves[-1].type != token.COMMA and
- trailing_comma_safe
+ delimiter_priority == COMMA_PRIORITY
+ and current_line.leaves[-1].type != token.COMMA
+ and trailing_comma_safe
):
current_line.append(Leaf(token.COMMA, ','))
normalize_prefix(current_line.leaves[0])
t = leaf.type
v = leaf.value
return bool(
- t == token.NAME and
- (
- (v == 'import' and p and p.type == syms.import_name) or
- (v == 'from' and p and p.type == syms.import_from)
+ t == token.NAME
+ and (
+ (v == 'import' and p and p.type == syms.import_name)
+ or (v == 'from' and p and p.type == syms.import_from)
)
)
if is_import(leaf):
spl = leaf.prefix.split('#', 1)
nl_count = spl[0].count('\n')
- if len(spl) > 1:
- # Skip one newline since it was for a standalone comment.
- nl_count -= 1
leaf.prefix = '\n' * nl_count
return
return True
elif (
- n.type == syms.typedargslist and
- n.children and
- n.children[-1].type == token.COMMA
+ n.type == syms.typedargslist
+ and n.children
+ and n.children[-1].type == token.COMMA
):
for ch in n.children:
if ch.type == token.STAR or ch.type == token.DOUBLESTAR:
projects / etc / vim.git / blobdiff