From f16debd0d003aa2b278ef824b6bde2fe5d7367b6 Mon Sep 17 00:00:00 2001
From: Jules Laplace <julescarbon@gmail.com>
Date: Mon, 5 Nov 2018 22:05:31 +0100
Subject: pdf downloader

---
 s2-pdf.py | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 s2-pdf.py

(limited to 's2-pdf.py')

diff --git a/s2-pdf.py b/s2-pdf.py
new file mode 100644
index 00000000..e8d5f197
--- /dev/null
+++ b/s2-pdf.py
@@ -0,0 +1,46 @@
+import os
+import sys
+import csv
+import subprocess
+import time
+import random
+import re
+import json
+import click
+from s2 import SemanticScholarAPI
+from util import *
+
+s2 = SemanticScholarAPI()
+
+@click.command()
+@click.option('--fn', '-i', default='db_paper_pdf.csv', help='Filename of CSV (id, url,)')
+def fetch_pdfs(fn):
+  lines = read_csv(fn, keys=False)
+  for line in lines:
+    paper_id, url = line
+    fetch_pdf(paper_id, url)
+  print("{} papers processed")
+
+def fetch_pdf(paper_id, url):
+  os.makedirs(make_pdf_path(paper_id), exist_ok=True)
+  pdf_fn = make_pdf_fn(paper_id)
+  if os.path.exists(pdf_fn):
+    # return read_json(pdf_fn)
+    return
+  size = s2.fetch_file(url, pdf_fn)
+  if size is None:
+    print("{} empty?".format(paper_id))
+    time.sleep(random.randint(5, 10))
+    return None  
+  print("{} {} kb".format(paper_id, int(size / 1024)))
+  time.sleep(random.randint(5, 10))
+  return
+  # return paper
+
+def make_pdf_path(paper_id):
+  return './datasets/s2/pdf/{}/{}'.format(paper_id[0:2], paper_id)
+def make_pdf_fn(paper_id):
+  return './datasets/s2/pdf/{}/{}/paper.pdf'.format(paper_id[0:2], paper_id)
+
+if __name__ == '__main__':
+  fetch_pdfs()
-- 
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