X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/283a5d53a8d57e8e186a08c9fbf249e1fbe7bc94..1580477615c3d14b029fc40904a10dfd31cc99a6:/README.md diff --git a/README.md b/README.md index c548ce4..8df2f9e 100644 --- a/README.md +++ b/README.md @@ -71,46 +71,52 @@ black {source_file_or_directory} black [OPTIONS] [SRC]... Options: - -l, --line-length INTEGER Where to wrap around. [default: 88] - --py36 Allow using Python 3.6-only syntax on all input - files. This will put trailing commas in function - signatures and calls also after *args and - **kwargs. [default: per-file auto-detection] - --pyi Format all input files like typing stubs - regardless of file extension (useful when piping - source on standard input). + -l, --line-length INTEGER How many characters per line to allow. + [default: 88] + -t, --target-version [pypy35|cpy27|cpy33|cpy34|cpy35|cpy36|cpy37|cpy38] + Python versions that should be supported by + Black's output. [default: per-file auto- + detection] + --pyi Format all input files like typing stubs + regardless of file extension (useful when + piping source on standard input). -S, --skip-string-normalization - Don't normalize string quotes or prefixes. - -N, --skip-numeric-underscore-normalization - Don't normalize underscores in numeric literals. - --check Don't write the files back, just return the - status. Return code 0 means nothing would - change. Return code 1 means some files would be - reformatted. Return code 123 means there was an - internal error. - --diff Don't write the files back, just output a diff - for each file on stdout. - --fast / --safe If --fast given, skip temporary sanity checks. - [default: --safe] - --include TEXT A regular expression that matches files and - directories that should be included on - recursive searches. On Windows, use forward - slashes for directories. [default: \.pyi?$] - --exclude TEXT A regular expression that matches files and - directories that should be excluded on - recursive searches. On Windows, use forward - slashes for directories. [default: - build/|buck-out/|dist/|_build/|\.eggs/|\.git/| - \.hg/|\.mypy_cache/|\.nox/|\.tox/|\.venv/] - -q, --quiet Don't emit non-error messages to stderr. Errors - are still emitted, silence those with - 2>/dev/null. - -v, --verbose Also emit messages to stderr about files - that were not changed or were ignored due to - --exclude=. - --version Show the version and exit. - --config PATH Read configuration from PATH. - --help Show this message and exit. + Don't normalize string quotes or prefixes. + --check Don't write the files back, just return the + status. Return code 0 means nothing would + change. Return code 1 means some files + would be reformatted. Return code 123 means + there was an internal error. + --diff Don't write the files back, just output a + diff for each file on stdout. + --fast / --safe If --fast given, skip temporary sanity + checks. [default: --safe] + --include TEXT A regular expression that matches files and + directories that should be included on + recursive searches. An empty value means + all files are included regardless of the + name. Use forward slashes for directories + on all platforms (Windows, too). Exclusions + are calculated first, inclusions later. + [default: \.pyi?$] + --exclude TEXT A regular expression that matches files and + directories that should be excluded on + recursive searches. An empty value means no + paths are excluded. Use forward slashes for + directories on all platforms (Windows, too). + Exclusions are calculated first, inclusions + later. [default: /(\.eggs|\.git|\.hg|\.mypy + _cache|\.nox|\.tox|\.venv|_build|buck- + out|build|dist)/] + -q, --quiet Don't emit non-error messages to stderr. + Errors are still emitted, silence those with + 2>/dev/null. + -v, --verbose Also emit messages to stderr about files + that were not changed or were ignored due to + --exclude=. + --version Show the version and exit. + --config PATH Read configuration from PATH. + -h, --help Show this message and exit. ``` *Black* is a well-behaved Unix-style command-line tool: @@ -178,12 +184,12 @@ brackets and put that in a separate indented line. ```py3 # in: -TracebackException.from_exception(exc, limit, lookup_lines, capture_locals) +ImportantClass.important_method(exc, limit, lookup_lines, capture_locals, extra_argument) # out: -TracebackException.from_exception( - exc, limit, lookup_lines, capture_locals +ImportantClass.important_method( + exc, limit, lookup_lines, capture_locals, extra_argument ) ``` @@ -197,7 +203,7 @@ separate lines. ```py3 # in: -def very_important_function(template: str, *variables, file: os.PathLike, debug: bool = False): +def very_important_function(template: str, *variables, file: os.PathLike, engine: str, header: bool = True, debug: bool = False): """Applies `variables` to the `template` and writes to `file`.""" with open(file, 'w') as f: ... @@ -208,6 +214,8 @@ def very_important_function( template: str, *variables, file: os.PathLike, + engine: str, + header: bool = True, debug: bool = False, ): """Applies `variables` to the `template` and writes to `file`.""" @@ -381,14 +389,8 @@ an adoption helper, avoid using this for new projects. *Black* standardizes most numeric literals to use lowercase letters for the syntactic parts and uppercase letters for the digits themselves: `0xAB` instead of `0XAB` and `1e10` instead of `1E10`. Python 2 long literals are -styled as `2L` instead of `2l` to avoid confusion between `l` and `1`. In -Python 3.6+, *Black* adds underscores to long numeric literals to aid -readability: `100000000` becomes `100_000_000`. +styled as `2L` instead of `2l` to avoid confusion between `l` and `1`. -For regions where numerals are grouped differently (like [India](https://en.wikipedia.org/wiki/Indian_numbering_system) -and [China](https://en.wikipedia.org/wiki/Chinese_numerals#Whole_numbers)), -the `-N` or `--skip-numeric-underscore-normalization` command line option -makes *Black* preserve underscores in numeric literals. ### Line breaks & binary operators @@ -569,25 +571,26 @@ to denote a significant space character. ```toml [tool.black] line-length = 88 -py36 = true +target_version = ['cpy37'] include = '\.pyi?$' exclude = ''' -/( - \.eggs - | \.git - | \.hg - | \.mypy_cache - | \.tox - | \.venv - | _build - | buck-out - | build - | dist - - # The following are specific to Black, you probably don't want those. - | blib2to3 - | tests/data -)/ + +( + /( + \.eggs # exclude a few common directories in the + | \.git # root of the project + | \.hg + | \.mypy_cache + | \.tox + | \.venv + | _build + | buck-out + | build + | dist + )/ + | foo.py # also separately exclude a file named foo.py in + # the root of the project +) ''' ``` @@ -657,6 +660,7 @@ $ where black - Arguments: `$FilePath$` - Output paths to refresh: `$FilePathRelativeToProjectRoot$` - Working directory: `$ProjectFileDir$` + - Uncheck "Auto-save edited files to trigger the watcher" ### Vim @@ -808,14 +812,13 @@ The headers controlling how code is formatted are: - `X-Skip-String-Normalization`: corresponds to the `--skip-string-normalization` command line flag. If present and its value is not the empty string, no string normalization will be performed. - - `X-Skip-Numeric-Underscore-Normalization`: corresponds to the - `--skip-numeric-underscore-normalization` command line flag. - `X-Fast-Or-Safe`: if set to `fast`, `blackd` will act as *Black* does when passed the `--fast` command line flag. - `X-Python-Variant`: if set to `pyi`, `blackd` will act as *Black* does when passed the `--pyi` command line flag. Otherwise, its value must correspond to - a Python version. If this value represents at least Python 3.6, `blackd` will - act as *Black* does when passed the `--py36` command line flag. + a Python version or a set of comma-separated Python versions, optionally + prefixed with `cpy` or `pypy`. For example, to request code that is compatible + with PyPy 3.5 and CPython 3.5, set the header to `pypy3.5,cpy3.5`. If any of these headers are set to invalid values, `blackd` returns a `HTTP 400` error response, mentioning the name of the problematic header in the message body. @@ -934,6 +937,17 @@ More details can be found in [CONTRIBUTING](CONTRIBUTING.md). ## Change Log +### 19.2b0 + +* removed `--py36` (use `--target-version=cpy36` instead) (#724) + +* long `del` statements are now split into multiple lines (#698) + +* *Black* no longer normalizes numeric literals to include `_` separators (#696) + +* new option `--target-version` to control which Python versions + *Black*-formatted code should target (#618) + ### 18.9b0 * numeric literals are now formatted by *Black* (#452, #461, #464, #469):