File size: 5,035 Bytes
60b97da
 
 
 
 
 
 
 
 
 
 
 
 
087c947
 
60b97da
 
087c947
 
60b97da
 
 
 
087c947
60b97da
 
 
 
 
 
 
087c947
 
 
 
 
 
60b97da
 
 
 
 
 
 
 
 
 
f1089a9
 
60b97da
f1089a9
60b97da
f1089a9
 
 
 
60b97da
f1089a9
60b97da
 
 
f1089a9
60b97da
f1089a9
60b97da
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
26349ea
 
60b97da
 
 
087c947
 
 
 
60b97da
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
import os
import re
import shutil
import subprocess
import tempfile
from pathlib import Path
from urllib.parse import urlparse


SUPPORTED_EXTENSIONS = {
    ".py",
    ".js",
    ".jsx",
    ".mjs",
    ".cjs",
    ".ts",
    ".tsx",
    ".mts",
    ".cts",
    ".java",
    ".go",
    ".rs",
    ".md",
    ".mdx",
    ".json",
    ".yml",
    ".yaml",
    ".toml",
    ".sh",
    ".css",
    ".html",
    ".prisma",
}

SUPPORTED_FILENAMES = {
    ".env.example",
    "Dockerfile",
}

IGNORED_FILENAMES = {
    "package-lock.json",
    "yarn.lock",
    "pnpm-lock.yaml",
    "bun.lockb",
}

IGNORED_DIRS = {
    ".agents",
    ".cache",
    ".git",
    ".mypy_cache",
    ".next",
    ".opencode",
    ".parcel-cache",
    ".pytest_cache",
    ".ruff_cache",
    ".turbo",
    ".vite",
    "dist",
    "build",
    "coverage",
    "logs",
    "node_modules",
    "tmp",
    "vendor",
    ".venv",
    "venv",
    "__pycache__",
}

MAX_FILE_SIZE_BYTES = 250_000


class RepoFetcher:
    def __init__(self, base_dir: str = None):
        repo_cache_dir = base_dir or os.getenv(
            "REPO_CACHE_DIR",
            str(Path(tempfile.gettempdir()) / "codecompass-repos"),
        )
        self.base_dir = Path(repo_cache_dir)
        self.base_dir.mkdir(parents=True, exist_ok=True)

    def parse_github_url(self, github_url: str) -> dict:
        parsed = urlparse(github_url)
        path = parsed.path.rstrip("/")
        if parsed.netloc not in {"github.com", "www.github.com"}:
            raise ValueError("Only github.com URLs are supported")

        parts = [part for part in path.split("/") if part]
        if len(parts) < 2:
            raise ValueError("GitHub URL must include owner and repository name")

        owner = parts[0]
        repo = parts[1].removesuffix(".git")
        branch = "main"

        if len(parts) >= 4 and parts[2] in {"tree", "blob"}:
            branch = parts[3]

        slug = re.sub(r"[^a-zA-Z0-9_.-]+", "-", f"{owner}-{repo}")
        repo_url = f"https://github.com/{owner}/{repo}"
        return {
            "owner": owner,
            "repo": repo,
            "branch": branch,
            "slug": slug,
            "repo_url": repo_url,
        }

    def clone_repository(self, github_url: str) -> dict:
        info = self.parse_github_url(github_url)
        target_dir = self.base_dir / info["slug"]

        if target_dir.exists():
            shutil.rmtree(target_dir)

        clone_cmd = [
            "git",
            "clone",
            "--depth",
            "1",
            "--branch",
            info["branch"],
            github_url,
            str(target_dir),
        ]

        clone_cmd[6] = info["repo_url"]

        result = subprocess.run(clone_cmd, capture_output=True, text=True)
        if result.returncode != 0 and info["branch"] != "main":
            info["branch"] = "main"
            clone_cmd[5] = "main"
            result = subprocess.run(clone_cmd, capture_output=True, text=True)

        if result.returncode != 0:
            default_branch = self._resolve_default_branch(info["repo_url"])
            if default_branch and default_branch != info["branch"]:
                info["branch"] = default_branch
                clone_cmd[5] = default_branch
                result = subprocess.run(clone_cmd, capture_output=True, text=True)

        if result.returncode != 0:
            raise RuntimeError(result.stderr.strip() or "Failed to clone repository")

        return {
            **info,
            "local_path": str(target_dir),
        }

    def _resolve_default_branch(self, github_url: str) -> str | None:
        result = subprocess.run(
            ["git", "ls-remote", "--symref", github_url, "HEAD"],
            capture_output=True,
            text=True,
        )
        if result.returncode != 0:
            return None

        for line in result.stdout.splitlines():
            if line.startswith("ref: ") and "\tHEAD" in line:
                ref = line.split("\t", 1)[0].removeprefix("ref: ").strip()
                if ref.startswith("refs/heads/"):
                    return ref.removeprefix("refs/heads/")
        return None

    def cleanup_repository(self, repo_path: str):
        target = Path(repo_path)
        if target.exists():
            shutil.rmtree(target)

    def iter_source_files(self, repo_path: str):
        root = Path(repo_path)
        for file_path in root.rglob("*"):
            if not file_path.is_file():
                continue
            relative_parts = file_path.relative_to(root).parts
            if any(part in IGNORED_DIRS for part in relative_parts):
                continue
            if file_path.name in IGNORED_FILENAMES:
                continue
            if (
                file_path.suffix.lower() not in SUPPORTED_EXTENSIONS
                and file_path.name not in SUPPORTED_FILENAMES
            ):
                continue
            if file_path.stat().st_size > MAX_FILE_SIZE_BYTES:
                continue
            yield file_path