Files
2dph/bin/tools/gitimport.py
T
eSlider 9f22380e82 refactor(tools): bin/{subject}/{method} layout; Go serve+watch modules
Move serve/ (module) -> bin/server, tools/ -> bin/tools, replace bin/kb-watch
bash with bin/watch Go package; self-executing Go shebangs bin/serve.go and
bin/kb/watch.go; Docker + CI + git/import + docs repointed. Multi-stage image
builds static serve+watch binaries (no Go runtime in container).
2026-08-11 09:52:20 +01:00

117 lines
4.2 KiB
Python

"""gitimport - parse `git log` output and turn commits into brain leafs.
Pure, testable functions. Field grammar (see bin/git/import):
git log --no-merges --name-only \
--format='%x1e%H%x1f%an%x1f%ae%x1f%aI%x1f%s'
0x1e = record separator, 0x1f = field separator.
Files: newline-separated lines following each record's subject.
"""
from __future__ import annotations
from dataclasses import dataclass, field
REC_SEP = "\x1e"
FIELD_SEP = "\x1f"
@dataclass
class Commit:
sha: str
author: str
email: str
date: str
subject: str
files: list[str] = field(default_factory=list)
def leaf_text(self, repo: str) -> str:
head = f"commit {self.sha[:12]} in {repo}{self.subject}"
body = [head, f"Author: {self.author} <{self.email}>", f"Date: {self.date}"]
if self.files:
body.append("Changing: " + ", ".join(self.files))
return "\n".join(body)
def parse_log(text: str) -> list[Commit]:
"""Parse `git log` output into Commit records.
Records are separated by 0x1e. A record is fields joined by 0x1f,
followed by optional newline-separated file paths inside the next
segment (git emits blank line + files after each record).
"""
commits: list[Commit] = []
# field records and file lists alternate; simpler: split on REC_SEP,
# each chunk = header line, possibly followed by newline + files.
for chunk in text.split(REC_SEP):
chunk = chunk.strip("\n")
if not chunk:
continue
lines = chunk.split("\n", 1)
header = lines[0].split(FIELD_SEP)
if len(header) < 5:
continue
sha, author, email, date, subject = header[:5]
files = [ln.strip() for ln in lines[1].splitlines() if ln.strip()] if len(lines) > 1 else []
commits.append(Commit(sha=sha, author=author, email=email,
date=date, subject=subject, files=files))
return commits
def commits_to_leafs(commits: list[Commit], repo: str) -> list[dict]:
"""Map commits to the leaf shape bin/kb/index expects (source/repo/...)."""
out: list[dict] = []
for c in commits:
out.append({
"source": f"{repo}@{c.sha}",
"repo": repo,
"heading": f"commit {c.sha[:12]}{c.subject}",
"text": c.leaf_text(repo),
"type": "commit",
"status": "current",
"related": ",".join(c.files),
})
return out
GIT_SCHEMA = (
"CREATE NODE TABLE IF NOT EXISTS Commit (id STRING, repo STRING, subject STRING, "
"author STRING, email STRING, date STRING, PRIMARY KEY(id))",
"CREATE NODE TABLE IF NOT EXISTS Person (id STRING, name STRING, email STRING, PRIMARY KEY(id))",
"CREATE REL TABLE IF NOT EXISTS HAS_VERSION (FROM File TO Commit)",
"CREATE REL TABLE IF NOT EXISTS AUTHORED (FROM Commit TO Person)",
)
def ensure_git_schema(conn) -> None:
for stmt in GIT_SCHEMA:
conn.execute(stmt)
def index_commits(conn, commits: list[Commit], repo: str) -> int:
"""Write Commit/File/Person nodes + edges, one per commit (idempotent by sha)."""
ensure_git_schema(conn)
for c in commits:
conn.execute(
"MERGE (c:Commit {id:$sha}) SET c.repo=$repo, c.subject=$subject, "
"c.author=$author, c.email=$email, c.date=$date",
parameters={"sha": c.sha, "repo": repo, "subject": c.subject,
"author": c.author, "email": c.email, "date": c.date},
)
conn.execute(
"MERGE (p:Person {id:$email}) SET p.name=$name, p.email=$email",
parameters={"email": c.email, "name": c.author},
)
conn.execute("MATCH (c:Commit {id:$sha}), (p:Person {id:$email}) "
"MERGE (c)-[:AUTHORED]->(p)",
parameters={"sha": c.sha, "email": c.email})
for path in c.files:
conn.execute(
"MERGE (f:File {id:$fid}) SET f.path=$path, f.repo=$repo",
parameters={"fid": f"{repo}:{path}", "path": path, "repo": repo},
)
conn.execute("MATCH (f:File {id:$fid}), (c:Commit {id:$sha}) "
"MERGE (f)-[:HAS_VERSION]->(c)",
parameters={"fid": f"{repo}:{path}", "sha": c.sha})
return len(commits)