155 rivejä
3.8 KiB
Python
Executable File
155 rivejä
3.8 KiB
Python
Executable File
#!/usr/bin/python3
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import sqlite3
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import os.path
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import sys
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import subprocess
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import zipfile
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import xml.etree.ElementTree
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import re
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import chardet
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import config
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dbcon = sqlite3.connect(config.DBPATH, isolation_level=None)
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class pagedata:
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page = 0
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content = ""
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def singlepagelist(content):
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result = pagedata()
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result.content = content
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result.page = 0
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l = list();
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l.append(result)
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return l
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def striptags(content):
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result = ""
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try:
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result = ''.join(xml.etree.ElementTree.fromstring(content).itertext())
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except:
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#TODO: test<br>test2 will make it testtest2 not test test2
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result = re.sub('<[^>]*>', '', content)
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return result
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def strip_irrelevant(content):
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result = content.replace("\n", " ").replace("\t", " ")
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result = re.sub(' +', ' ', result)
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return result;
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def pdf_pagecount(path):
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cmd = "pdfinfo " + path + " | grep Pages | awk '{print $2}'"
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stdout,stderr = subprocess.Popen(cmd,shell=True,stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
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result = int(stdout)
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return result
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def process_pdf(path):
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result = list()
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args=["pdftotext", path, "-"]
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stdout,stderr = subprocess.Popen(args,stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
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content = strip_irrelevant(stdout.decode('utf-8'))
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#it is faster to do it like this than to call pdfottext for each page
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splitted = content.split("\f")
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count=1
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for page in splitted:
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data = pagedata()
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data.page = count
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data.content = page
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result.append(data)
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count += 1
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#everything = pagedata()
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#everything.page = 0
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#everything.content = content.replace("\f", "")
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#result.append(everything)
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return result
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def process_odt(path):
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fd = zipfile.ZipFile(path)
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content = fd.read("content.xml").decode("utf-8")
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fd.close()
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return singlepagelist(striptags(content))
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def readtext(path):
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fd = open(path, "rb")
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content = fd.read()
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fd.close()
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result=""
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try:
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result = str(content.decode("utf-8"))
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except:
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try:
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encoding = chardet.detect(content)["encoding"];
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if encoding == None:
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result = ""
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else:
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result = str(content.decode(encoding))
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except:
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print("FAILE DECODING: " + path)
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result = ""
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return result
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def process_striptags(path):
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content = readtext(path)
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return singlepagelist(striptags(content))
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def process_text(path):
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return singlepagelist(readtext(path))
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def process_nothing(path):
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return list()
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def exists(abspath, mtime):
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cursor = dbcon.cursor()
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cursor.execute("SELECT 1 FROM file WHERE path = ? AND mtime = ?" , (abspath, mtime))
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result = cursor.fetchone()
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if result != None and result[0] == 1:
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return True
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return False
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def insert(path, cursor):
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print("processing", path)
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abspath=os.path.abspath(path)
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mtime = int(os.stat(abspath).st_mtime)
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if exists(abspath, mtime):
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print("Leaving alone " + abspath + " because it wasn't changed")
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return
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basename=os.path.basename(abspath)
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ext = os.path.splitext(abspath)[1]
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content=""
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processor=process_nothing
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if ext in preprocess:
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processor=preprocess[ext]
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pagedatalist = processor(abspath)
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cursor.execute("BEGIN TRANSACTION")
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cursor.execute("DELETE FROM file WHERE path = ?", (abspath,))
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cursor.execute("INSERT INTO file(path, mtime) VALUES(?, ?) ", (abspath, mtime))
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fileid=cursor.lastrowid
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for pagedata in pagedatalist:
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cursor.execute("INSERT INTO content(fileid, page, content) VALUES(?, ?, ?)", (fileid, pagedata.page, pagedata.content))
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cursor.execute("COMMIT TRANSACTION")
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preprocess={".pdf":process_pdf, ".odt":process_odt, ".html":process_striptags, ".xml":process_nothing, ".txt":process_text,
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".sql":process_text, ".c":process_text, ".cpp":process_text, ".js":process_text, ".java":process_text,
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".py":process_text, '.md':process_text}
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cursor = dbcon.cursor()
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if len(sys.argv) < 2:
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for line in sys.stdin:
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insert(line.replace("\n", ""), cursor)
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else:
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for inputfile in sys.argv[1:]:
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insert(inputfile, cursor)
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dbcon.close()
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