From 72cd9b2859f4f1d4fb344dccc00d0ac857243570 Mon Sep 17 00:00:00 2001
From: Tamir Bahar <tamir.bahar@gmail.com>
Date: Mon, 19 Apr 2021 18:32:51 +0300
Subject: [PATCH] Add Python version

---
 contrib/emojisum-py/MANIFEST.in               |   1 +
 contrib/emojisum-py/requirements.txt          |   1 +
 contrib/emojisum-py/setup.py                  |  24 +++++
 contrib/emojisum-py/src/emojisum/__init__.py  | 101 ++++++++++++++++++
 .../emojisum-py/src/emojisum/emojimap.json    |   1 +
 5 files changed, 128 insertions(+)
 create mode 100644 contrib/emojisum-py/MANIFEST.in
 create mode 100644 contrib/emojisum-py/requirements.txt
 create mode 100644 contrib/emojisum-py/setup.py
 create mode 100644 contrib/emojisum-py/src/emojisum/__init__.py
 create mode 120000 contrib/emojisum-py/src/emojisum/emojimap.json

diff --git a/contrib/emojisum-py/MANIFEST.in b/contrib/emojisum-py/MANIFEST.in
new file mode 100644
index 0000000..da79403
--- /dev/null
+++ b/contrib/emojisum-py/MANIFEST.in
@@ -0,0 +1 @@
+include src/emojisum/emojimap.json
\ No newline at end of file
diff --git a/contrib/emojisum-py/requirements.txt b/contrib/emojisum-py/requirements.txt
new file mode 100644
index 0000000..df78ca6
--- /dev/null
+++ b/contrib/emojisum-py/requirements.txt
@@ -0,0 +1 @@
+rich
diff --git a/contrib/emojisum-py/setup.py b/contrib/emojisum-py/setup.py
new file mode 100644
index 0000000..fe955b1
--- /dev/null
+++ b/contrib/emojisum-py/setup.py
@@ -0,0 +1,24 @@
+from setuptools import find_packages, setup
+
+
+def get_requirements():
+    with open("requirements.txt") as f:
+        return f.read().splitlines()
+
+
+setup(
+    name="emojisum",
+    version="1.0.0",
+    packages=find_packages(where="src"),
+    url="",
+    license="",
+    author="Tamir Bahar",
+    author_email="",
+    description="",
+    package_dir={"": "src"},
+    include_package_data=True,
+    install_requires=get_requirements(),
+    entry_points={
+        "console_scripts": ["emojisum=emojisum:entry"],
+    },
+)
diff --git a/contrib/emojisum-py/src/emojisum/__init__.py b/contrib/emojisum-py/src/emojisum/__init__.py
new file mode 100644
index 0000000..a075872
--- /dev/null
+++ b/contrib/emojisum-py/src/emojisum/__init__.py
@@ -0,0 +1,101 @@
+import hashlib
+import json
+import mmap
+import os
+import re
+import sys
+from pathlib import Path
+from typing import NamedTuple, Optional
+
+from rich.console import Console
+
+SHA1SUM_PATTERN = re.compile(r"(?P<digest>\S*)\s+(?P<path>.*)")
+OPENSSL_SHA1_PATTERN = re.compile(r"SHA1\((?P<path>.*)\)=\s+(?P<digest>.*)")
+OUTPUT_PATTERNS = [SHA1SUM_PATTERN, OPENSSL_SHA1_PATTERN]
+
+
+class Sha1Result(NamedTuple):
+    hex_digest: str
+    path: str
+
+
+def load_table():
+    with (Path(__file__).parent / "emojimap.json").open() as f:
+        data = json.load(f)
+
+    return data["emojiwords"]
+
+
+def _emojify(hex_digest):
+    for i in range(0, len(hex_digest), 2):
+        yield load_table()[int(hex_digest[i : i + 1], 0x10)][0]
+
+
+def emojify(hex_digest: str):
+    return "".join(_emojify(hex_digest))
+
+
+def sha1sum(path: Path):
+    h = hashlib.sha1()
+    with path.open("rb") as f:
+        with mmap.mmap(f.fileno(), 0, access=mmap.ACCESS_READ) as mm:
+            h.update(mm)
+    return h.hexdigest()
+
+
+def parse_sha1_output(output: str) -> Optional[Sha1Result]:
+    for pattern in OUTPUT_PATTERNS:
+        match = pattern.match(output)
+        if match:
+            return Sha1Result(hex_digest=match["digest"], path=match["path"])
+
+    return None
+
+
+def print_result(result: Sha1Result):
+    path = os.path.normpath(result.path)
+    hex_digest = result.hex_digest
+
+    markdown = emojify(hex_digest=hex_digest)
+
+    Console().print(
+        f"SHA1({path}) = {hex_digest}", emoji=False, markup=False, highlight=False
+    )
+    Console().print(
+        f"SHA1({path}) = {markdown}", emoji=False, markup=False, highlight=False
+    )
+    Console().print(
+        f"SHA1({path}) = {markdown}", emoji=True, markup=False, highlight=False
+    )
+
+
+def calculate_sum(path: Path) -> Sha1Result:
+    return Sha1Result(path=str(path), hex_digest=sha1sum(path))
+
+
+def main(path: Optional[Path] = None):
+    if path:
+        sha1_result = calculate_sum(path)
+
+    elif not sys.stdin.isatty():
+        sha1_result = parse_sha1_output(sys.stdin.read())
+    else:
+        return
+
+    if not sha1_result:
+        return
+
+    print_result(sha1_result)
+
+
+def entry():
+    if len(sys.argv) == 2:
+        path = Path(sys.argv[1])
+    else:
+        path = None
+
+    main(path)
+
+
+if __name__ == "__main__":
+    entry()
diff --git a/contrib/emojisum-py/src/emojisum/emojimap.json b/contrib/emojisum-py/src/emojisum/emojimap.json
new file mode 120000
index 0000000..7a29328
--- /dev/null
+++ b/contrib/emojisum-py/src/emojisum/emojimap.json
@@ -0,0 +1 @@
+../../emoji/emojimap.json
\ No newline at end of file