From 12e22e7b12584847f81ab3cee10bf131df07c4d3 Mon Sep 17 00:00:00 2001
From: sinanmohd <sinan@sinanmohd.com>
Date: Sat, 21 Sep 2024 13:12:17 +0530
Subject: bin/nixpkgs_drv_pname: init

---
 bin/nixpkgs_dag.py | 110 -----------------------------------------------------
 1 file changed, 110 deletions(-)
 delete mode 100755 bin/nixpkgs_dag.py

(limited to 'bin/nixpkgs_dag.py')

diff --git a/bin/nixpkgs_dag.py b/bin/nixpkgs_dag.py
deleted file mode 100755
index 4f574f0..0000000
--- a/bin/nixpkgs_dag.py
+++ /dev/null
@@ -1,110 +0,0 @@
-#!/usr/bin/env python3
-
-# This script is used to evaluate Nixpkgs and store the relationships between
-# derivations and their input derivations in a directed acyclic graph (DAG).
-# The DAG is represented using an adjacency list and saved in a SQLite db
-
-import re
-import sys
-import subprocess
-import json
-import sqlite3
-from typing import Set
-
-class drv:
-    pname: str
-    input_drvs: Set[str] = set()
-    cursor: sqlite3.Cursor
-
-    def __init__(self, drv_string: str, cursor: sqlite3.Cursor) -> None:
-        self.cursor = cursor
-
-        j = json.loads(drv_string)
-        if 'error' in j:
-            raise TypeError(f'{j['attrPath']}: Failed to evaluate')
-        elif 'drvPath' not in j:
-            raise TypeError(f'{j['attrPath']}: Failed to read drvPath')
-
-        pname = self.pname_from_drv_path(j['drvPath'])
-        print(pname)
-        if pname is None:
-            raise TypeError(f'{j['attrPath']}: Failed to read pname')
-        self.pname = pname
-
-        for input_drv in j['inputDrvs']:
-            pname = self.pname_from_drv_path(input_drv)
-            if pname is not None:
-                self.input_drvs.add(pname)
-
-    def db_push(self):
-        parrent_id = self.rowid_from_pname(self.cursor, self.pname)
-        for input_drv in self.input_drvs:
-            child_id = self.rowid_from_pname(self.cursor, input_drv)
-
-            self.cursor.execute("""
-                INSERT INTO edges (start, end)
-                VALUES (?, ?)
-            """, (parrent_id, child_id))
-
-    @staticmethod
-    def rowid_from_pname(cursor: sqlite3.Cursor, pname: str) -> int:
-        s = cursor.execute("""
-            SELECT pnames.ROWID FROM pnames
-            WHERE pnames.pname = ?
-        """, (pname,))
-        id = s.fetchone()
-        if id:
-            return id[0]
-        
-        s = cursor.execute("""
-            INSERT INTO pnames (pname)
-            VALUES (?)
-        """, (pname,))
-        if s.lastrowid is None:
-            raise TypeError('Failed to get lastrowid')
-
-        return s.lastrowid
-
-    @staticmethod
-    def pname_from_drv_path(drv_path: str) -> str | None:
-        f = open(drv_path, 'r')
-        drv_string = f.readline()
-        match = re.search('"pname","([^"]+)', drv_string)
-        if match is not None:
-            return match.group(1)
-
-if __name__ == '__main__':
-    cmd = [
-        'nix-eval-jobs',
-        '--flake',
-        'github:nixos/nixpkgs#legacyPackages.x86_64-linux'
-    ]
-    proc = subprocess.Popen(cmd, stdout=subprocess.PIPE,
-                            stderr=subprocess.DEVNULL)
-    if proc.stdout is None:
-        raise EOFError('Failed to evaluate nixpkgs')
-
-    con = sqlite3.connect('nixpkgs_dag.db')
-    cur = con.cursor()
-    cur.execute("""
-        CREATE TABLE IF NOT EXISTS pnames (
-            pname TEXT NOT NULL UNIQUE
-        )
-    """)
-    cur.execute("""
-        CREATE TABLE IF NOT EXISTS edges (
-            start INTEGER NOT NULL,
-            end NOT NULL,
-            UNIQUE(start, end) ON CONFLICT REPLACE
-        )
-    """)
-
-    for line in proc.stdout:
-        try:
-            d = drv(line.decode('utf-8'), cur)
-            d.db_push()
-        except Exception as e:
-            print(f'>>> {e}', file=sys.stderr)
-
-    con.commit()
-    con.close()
-- 
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