WIP: mostly scratch code still

src/pycalver/config.py

@@ -0,0 +1,122 @@
+# This file is part of the pycalver project
+# https://github.com/mbarkhau/pycalver
+#
+# (C) 2018 Manuel Barkhau (@mbarkhau)
+# SPDX-License-Identifier: MIT
+
+import io
+import os
+import configparser
+import pkg_resources
+import typing as typ
+import datetime as dt
+
+import logging
+
+from .parse import PYCALVER_RE
+
+log = logging.getLogger("pycalver.config")
+
+
+def parse(config_file="setup.cfg") -> typ.Optional[typ.Dict[str, typ.Any]]:
+    if not os.path.exists(config_file):
+        log.error("File not found: setup.cfg")
+        return None
+
+    cfg_parser = configparser.RawConfigParser("")
+    with io.open(config_file, mode="rt", encoding="utf-8") as fh:
+        cfg_parser.readfp(fh)
+
+    if "pycalver" not in cfg_parser:
+        log.error("setup.cfg does not contain a [pycalver] section.")
+        return None
+
+    cfg = dict(cfg_parser.items("pycalver"))
+
+    if "current_version" not in cfg:
+        log.error("setup.cfg does not have 'pycalver.current_version'")
+        return None
+
+    current_version = cfg["current_version"]
+    if PYCALVER_RE.match(current_version) is None:
+        log.error(f"setup.cfg 'pycalver.current_version is invalid")
+        log.error(f"current_version = {current_version}")
+        return None
+
+    cfg["pep440_version"] = str(pkg_resources.parse_version(current_version))
+
+    cfg["tag"] = cfg.get("tag", "").lower() in ("yes", "true", "1", "on")
+    cfg["commit"] = cfg.get("commit", "").lower() in ("yes", "true", "1", "on")
+
+    cfg["file_patterns"] = {}
+
+    for section_name in cfg_parser.sections():
+        if not section_name.startswith("pycalver:file:"):
+            continue
+
+        filepath = section_name.split(":", 2)[-1]
+        if not os.path.exists(filepath):
+            log.error(f"No such file: {filepath} from {section_name} in setup.cfg")
+            return None
+
+        section = dict(cfg_parser.items(section_name))
+
+        if "patterns" in section:
+            cfg["file_patterns"][filepath] = [
+                line.strip()
+                for line in section["patterns"].splitlines()
+                if line.strip()
+            ]
+        else:
+            cfg["file_patterns"][filepath] = ["{version}", "{pep440_version}"]
+
+    if not cfg["file_patterns"]:
+        cfg["file_patterns"]["setup.cfg"] = ["{version}", "{pep440_version}"]
+
+    log.debug(f"Config Parsed: {cfg}")
+
+    return cfg
+
+
+def default_config_lines() -> typ.List[str]:
+    initial_version = dt.datetime.now().strftime("v%Y%m.0001-dev")
+
+    cfg_lines = [
+        "[pycalver]",
+        f"current_version = {initial_version}",
+        "commit = True",
+        "tag = True",
+        "",
+        "[pycalver:file:setup.cfg]",
+        "patterns = ",
+        "    current_version = {version}",
+        "",
+    ]
+
+    if os.path.exists("setup.py"):
+        cfg_lines.extend([
+            "[pycalver:file:setup.py]",
+            "patterns = ",
+            "    \"{version}\"",
+            "    \"{pep440_version}\"",
+            "",
+        ])
+
+    if os.path.exists("README.rst"):
+        cfg_lines.extend([
+            "[pycalver:file:README.rst]",
+            "patterns = ",
+            "    {version}",
+            "    {pep440_version}",
+            "",
+        ])
+
+    if os.path.exists("README.md"):
+        cfg_lines.extend([
+            "[pycalver:file:README.md]",
+            "    {version}",
+            "    {pep440_version}",
+            "",
+        ])
+
+    return cfg_lines