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-rwxr-xr-xbackend/tolData/enwiki/genDumpIndexDb.py56
1 files changed, 0 insertions, 56 deletions
diff --git a/backend/tolData/enwiki/genDumpIndexDb.py b/backend/tolData/enwiki/genDumpIndexDb.py
deleted file mode 100755
index 3bd129f..0000000
--- a/backend/tolData/enwiki/genDumpIndexDb.py
+++ /dev/null
@@ -1,56 +0,0 @@
-#!/usr/bin/python3
-
-import sys, os, re
-import bz2
-import sqlite3
-
-import argparse
-parser = argparse.ArgumentParser(description="""
-Adds data from the wiki dump index-file into a database
-""", formatter_class=argparse.RawDescriptionHelpFormatter)
-parser.parse_args()
-
-indexFile = 'enwiki-20220501-pages-articles-multistream-index.txt.bz2' # Had about 22e6 lines
-indexDb = 'dumpIndex.db'
-
-if os.path.exists(indexDb):
- raise Exception(f'ERROR: Existing {indexDb}')
-print('Creating database')
-dbCon = sqlite3.connect(indexDb)
-dbCur = dbCon.cursor()
-dbCur.execute('CREATE TABLE offsets (title TEXT PRIMARY KEY, id INT UNIQUE, offset INT, next_offset INT)')
-
-print('Iterating through index file')
-lineRegex = re.compile(r'([^:]+):([^:]+):(.*)')
-lastOffset = 0
-lineNum = 0
-entriesToAdd: list[tuple[str, str]] = []
-with bz2.open(indexFile, mode='rt') as file:
- for line in file:
- lineNum += 1
- if lineNum % 1e5 == 0:
- print(f'At line {lineNum}')
- #
- match = lineRegex.fullmatch(line.rstrip())
- assert match is not None
- offsetStr, pageId, title = match.group(1,2,3)
- offset = int(offsetStr)
- if offset > lastOffset:
- for t, p in entriesToAdd:
- try:
- dbCur.execute('INSERT INTO offsets VALUES (?, ?, ?, ?)', (t, int(p), lastOffset, offset))
- except sqlite3.IntegrityError as e:
- # Accounts for certain entries in the file that have the same title
- print(f'Failed on title "{t}": {e}', file=sys.stderr)
- entriesToAdd = []
- lastOffset = offset
- entriesToAdd.append((title, pageId))
-for title, pageId in entriesToAdd:
- try:
- dbCur.execute('INSERT INTO offsets VALUES (?, ?, ?, ?)', (title, int(pageId), lastOffset, -1))
- except sqlite3.IntegrityError as e:
- print(f'Failed on title "{t}": {e}', file=sys.stderr)
-
-print('Closing database')
-dbCon.commit()
-dbCon.close()