File size: 4,628 Bytes
7476e53
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0a695d4
 
 
 
 
 
 
 
7476e53
 
 
 
 
 
 
 
 
45a8903
 
 
 
 
 
 
 
 
 
 
 
7476e53
45a8903
7476e53
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0a695d4
 
 
 
 
7476e53
 
 
dab4959
7476e53
 
 
 
 
 
 
 
 
 
dab4959
7476e53
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0a695d4
7476e53
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
#!/usr/bin/env python3

import json
import os
import shlex
import sys
from pathlib import Path


DEFAULT_TEXT_OCR_CONFIG = {
    "det_model_name": "db_shufflenet_v2_small",
    "det_model_backend": "pytorch",
    "rec_model_name": "doc-densenet_lite_136-gru",
    "rec_model_backend": "onnx",
}
DEFAULT_CPU_THREADS = "2"
THREAD_ENV_DEFAULTS = {
    "OMP_NUM_THREADS": DEFAULT_CPU_THREADS,
    "OPENBLAS_NUM_THREADS": DEFAULT_CPU_THREADS,
    "MKL_NUM_THREADS": DEFAULT_CPU_THREADS,
    "NUMEXPR_NUM_THREADS": DEFAULT_CPU_THREADS,
    "VECLIB_MAXIMUM_THREADS": DEFAULT_CPU_THREADS,
}


def env_flag(name: str, default: bool = False) -> bool:
    value = os.environ.get(name)
    if value is None:
        return default
    return value.strip().lower() in {"1", "true", "yes", "on"}


def default_cache_root() -> Path:
    explicit_root = os.environ.get("PIX2TEXT_CACHE_ROOT")
    if explicit_root:
        return Path(explicit_root)

    persistent_root = Path("/data/pix2text-demo")
    if persistent_root.parent.exists() and os.access(persistent_root.parent, os.W_OK):
        return persistent_root

    return Path("/tmp/pix2text-demo")


def configure_runtime_dirs() -> None:
    cache_root = default_cache_root()
    dir_map = {
        "HF_HOME": cache_root / "huggingface",
        "XDG_CACHE_HOME": cache_root / "xdg-cache",
        "MPLCONFIGDIR": cache_root / "matplotlib",
        "YOLO_CONFIG_DIR": cache_root / "ultralytics",
        "PIX2TEXT_HOME": cache_root / "pix2text",
        "CNOCR_HOME": cache_root / "cnocr",
        "CNSTD_HOME": cache_root / "cnstd",
    }
    for env_name, path in dir_map.items():
        os.environ.setdefault(env_name, str(path))
        Path(os.environ[env_name]).mkdir(parents=True, exist_ok=True)

    output_root = Path(os.environ.get("P2T_OUTPUT_MD_ROOT_DIR", "/tmp/pix2text-output"))
    output_root.mkdir(parents=True, exist_ok=True)


def configure_cpu_threads() -> None:
    for env_name, value in THREAD_ENV_DEFAULTS.items():
        os.environ.setdefault(env_name, value)


def build_ui_command(host: str, port: str) -> list[str]:
    os.environ.setdefault("STREAMLIT_BROWSER_GATHER_USAGE_STATS", "false")
    os.environ.setdefault("STREAMLIT_SERVER_HEADLESS", "true")
    os.environ.setdefault("STREAMLIT_SERVER_ENABLE_XSRF_PROTECTION", "false")
    return [
        sys.executable,
        "-m",
        "streamlit",
        "run",
        "pix2text/app.py",
        "--server.address",
        host,
        "--server.port",
        port,
        "--server.enableXsrfProtection=false",
    ]


def build_api_command(host: str, port: str) -> list[str]:
    cmd = [
        sys.executable,
        "-m",
        "pix2text.cli",
        "serve",
        "-l",
        os.environ.get("P2T_LANGUAGES", "en"),
        "--text-ocr-config",
        os.environ.get(
            "P2T_TEXT_OCR_CONFIG",
            json.dumps(DEFAULT_TEXT_OCR_CONFIG, separators=(",", ":")),
        ),
        "--device",
        os.environ.get("P2T_DEVICE", "cpu"),
        "-o",
        os.environ.get("P2T_OUTPUT_MD_ROOT_DIR", "/tmp/pix2text-output"),
        "-H",
        host,
        "-p",
        port,
        "--log-level",
        os.environ.get("P2T_LOG_LEVEL", "INFO"),
    ]

    optional_json_args = {
        "P2T_LAYOUT_CONFIG": "--layout-config",
        "P2T_MFD_CONFIG": "--mfd-config",
        "P2T_FORMULA_OCR_CONFIG": "--formula-ocr-config",
    }
    for env_name, cli_flag in optional_json_args.items():
        value = os.environ.get(env_name)
        if value:
            cmd.extend([cli_flag, value])

    cmd.append("--enable-formula" if env_flag("P2T_ENABLE_FORMULA", False) else "--disable-formula")
    cmd.append("--enable-table" if env_flag("P2T_ENABLE_TABLE", False) else "--disable-table")
    if env_flag("P2T_RELOAD", False):
        cmd.append("--reload")
    return cmd


def main() -> int:
    configure_runtime_dirs()
    configure_cpu_threads()

    app_mode = os.environ.get("P2T_APP_MODE", "ui").strip().lower()
    host = os.environ.get("HOST", os.environ.get("P2T_HOST", "0.0.0.0"))
    port = os.environ.get("PORT") or os.environ.get("P2T_PORT") or "7860"

    if app_mode == "ui":
        cmd = build_ui_command(host, port)
    elif app_mode == "api":
        cmd = build_api_command(host, port)
    else:
        raise SystemExit(
            f"Unsupported P2T_APP_MODE={app_mode!r}. Use 'ui' or 'api'."
        )

    if env_flag("P2T_DRY_RUN", False):
        print(" ".join(shlex.quote(part) for part in cmd))
        return 0

    os.execvpe(cmd[0], cmd, os.environ)
    return 0


if __name__ == "__main__":
    raise SystemExit(main())