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Add more flexible parsing and formating

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This commit is contained in:
Manuel Barkhau 2019-01-06 14:38:20 +01:00
parent 32447b03d4
commit 9eda61d95b
13 changed files with 932 additions and 359 deletions
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25
src/pycalver/rewrite.py
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@ -43,18 +43,20 @@ def rewrite_lines(
) -> typ.List[str]:
"""Replace occurances of patterns in old_lines with new_version.
>>> old_lines = ['__version__ = "v201809.0002-beta"']
>>> patterns = ['__version__ = "{version}"']
>>> new_lines = rewrite_lines(patterns, "v201811.0123-beta", old_lines)
>>> assert new_lines == ['__version__ = "v201811.0123-beta"']
>>> patterns = ['__version__ = "{pycalver}"']
>>> rewrite_lines(patterns, "v201811.0123-beta", ['__version__ = "v201809.0002-beta"'])
['__version__ = "v201811.0123-beta"']
>>> patterns = ['__version__ = "{pep440_version}"']
>>> rewrite_lines(patterns, "v201811.0123-beta", ['__version__ = "201809.2b0"'])
['__version__ = "201811.123b0"']
"""
new_version_nfo = version.parse_version_info(new_version)
new_version_fmt_kwargs = new_version_nfo._asdict()
new_version_nfo = version.parse_version_info(new_version)
new_lines = old_lines[:]
for m in parse.iter_matches(old_lines, patterns):
replacement = m.pattern.format(**new_version_fmt_kwargs)
replacement = version.format_version(new_version_nfo, m.pattern)
span_l, span_r = m.span
new_line = m.line[:span_l] + replacement + m.line[span_r:]
new_lines[m.lineno] = new_line
@ -74,10 +76,11 @@ class RewrittenFileData(typ.NamedTuple):
def rfd_from_content(patterns: typ.List[str], new_version: str, content: str) -> RewrittenFileData:
r"""Rewrite pattern occurrences with version string.
>>> patterns = ['__version__ = "{version}"']
>>> patterns = ['__version__ = "{pycalver}"']
>>> content = '__version__ = "v201809.0001-alpha"'
>>> rfd = rfd_from_content(patterns, "v201809.0123", content)
>>> assert rfd.new_lines == ['__version__ = "v201809.0123"']
>>> rfd.new_lines
['__version__ = "v201809.0123"']
"""
line_sep = detect_line_sep(content)
old_lines = content.split(line_sep)
@ -90,7 +93,7 @@ def iter_rewritten(
) -> typ.Iterable[RewrittenFileData]:
r'''Iterate over files with version string replaced.
>>> file_patterns = {"src/pycalver/__init__.py": ['__version__ = "{version}"']}
>>> file_patterns = {"src/pycalver/__init__.py": ['__version__ = "{pycalver}"']}
>>> rewritten_datas = iter_rewritten(file_patterns, "v201809.0123")
>>> rfd = list(rewritten_datas)[0]
>>> assert rfd.new_lines == [
@ -135,7 +138,7 @@ def diff_lines(rfd: RewrittenFileData) -> typ.List[str]:
def diff(new_version: str, file_patterns: config.PatternsByFilePath) -> str:
r"""Generate diffs of rewritten files.
>>> file_patterns = {"src/pycalver/__init__.py": ['__version__ = "{version}"']}
>>> file_patterns = {"src/pycalver/__init__.py": ['__version__ = "{pycalver}"']}
>>> diff_str = diff("v201809.0123", file_patterns)
>>> lines = diff_str.split("\n")
>>> lines[:2]