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authorJeff Garzik <jgarzik@bitpay.com>2014-08-24 11:37:14 -0400
committerWladimir J. van der Laan <laanwj@gmail.com>2014-09-04 15:13:37 +0200
commit399cdbc70013d54569f17b4e47e4438b8921b46b (patch)
treeffbf0c9aed6da380b1f800dc928a7e26da457e67 /contrib
parent8f5a423344b277fbb63eb4295ce5928e16c6dc9d (diff)
contrib/linearize: Add feature to set file's timestamp based on block header time.
Diffstat (limited to 'contrib')
-rw-r--r--contrib/linearize/README.md5
-rwxr-xr-xcontrib/linearize/linearize-data.py50
2 files changed, 37 insertions, 18 deletions
diff --git a/contrib/linearize/README.md b/contrib/linearize/README.md
index b5c6e7824e..157586e4d4 100644
--- a/contrib/linearize/README.md
+++ b/contrib/linearize/README.md
@@ -27,6 +27,7 @@ output.
Optional config file setting for linearize-data:
* "netmagic": network magic number
* "max_out_sz": maximum output file size (default 1000*1000*1000)
-* "split_year": Split files when a new year is first seen, in addition to
+* "split_timestamp": Split files when a new month is first seen, in addition to
reaching a maximum file size.
-
+* "file_timestamp": Set each file's last-modified time to that of the
+most recent block in that file.
diff --git a/contrib/linearize/linearize-data.py b/contrib/linearize/linearize-data.py
index 3a4c9759fe..383bb38198 100755
--- a/contrib/linearize/linearize-data.py
+++ b/contrib/linearize/linearize-data.py
@@ -10,11 +10,13 @@
import json
import struct
import re
+import os
import base64
import httplib
import sys
import hashlib
import datetime
+import time
settings = {}
@@ -60,9 +62,10 @@ def calc_hash_str(blk_hdr):
def get_blk_dt(blk_hdr):
members = struct.unpack("<I", blk_hdr[68:68+4])
- dt = datetime.datetime.fromtimestamp(members[0])
+ nTime = members[0]
+ dt = datetime.datetime.fromtimestamp(nTime)
dt_ym = datetime.datetime(dt.year, dt.month, 1)
- return dt_ym
+ return (dt_ym, nTime)
def get_block_hashes(settings):
blkindex = []
@@ -87,14 +90,19 @@ def copydata(settings, blkindex, blkset):
outFn = 0
outsz = 0
outF = None
+ outFname = None
blkCount = 0
lastDate = datetime.datetime(2000, 1, 1)
+ highTS = 1408893517 - 315360000
timestampSplit = False
fileOutput = True
+ setFileTime = False
maxOutSz = settings['max_out_sz']
if 'output' in settings:
fileOutput = False
+ if settings['file_timestamp'] != 0:
+ setFileTime = True
if settings['split_timestamp'] != 0:
timestampSplit = True
@@ -134,34 +142,41 @@ def copydata(settings, blkindex, blkset):
if not fileOutput and ((outsz + inLen) > maxOutSz):
outF.close()
+ if setFileTime:
+ os.utime(outFname, (int(time.time()), highTS))
outF = None
+ outFname = None
outFn = outFn + 1
outsz = 0
- if timestampSplit:
- blkDate = get_blk_dt(blk_hdr)
- if blkDate > lastDate:
- print("New month " + blkDate.strftime("%Y-%m") + " @ " + hash_str)
- lastDate = blkDate
- if outF:
- outF.close()
- outF = None
- outFn = outFn + 1
- outsz = 0
+ (blkDate, blkTS) = get_blk_dt(blk_hdr)
+ if timestampSplit and (blkDate > lastDate):
+ print("New month " + blkDate.strftime("%Y-%m") + " @ " + hash_str)
+ lastDate = blkDate
+ if outF:
+ outF.close()
+ if setFileTime:
+ os.utime(outFname, (int(time.time()), highTS))
+ outF = None
+ outFname = None
+ outFn = outFn + 1
+ outsz = 0
if not outF:
if fileOutput:
- fname = settings['output_file']
+ outFname = settings['output_file']
else:
- fname = "%s/blk%05d.dat" % (settings['output'], outFn)
- print("Output file" + fname)
- outF = open(fname, "wb")
+ outFname = "%s/blk%05d.dat" % (settings['output'], outFn)
+ print("Output file" + outFname)
+ outF = open(outFname, "wb")
outF.write(inhdr)
outF.write(rawblock)
outsz = outsz + inLen + 8
blkCount = blkCount + 1
+ if blkTS > highTS:
+ highTS = blkTS
if (blkCount % 1000) == 0:
print("Wrote " + str(blkCount) + " blocks")
@@ -191,6 +206,8 @@ if __name__ == '__main__':
settings['input'] = 'input'
if 'hashlist' not in settings:
settings['hashlist'] = 'hashlist.txt'
+ if 'file_timestamp' not in settings:
+ settings['file_timestamp'] = 0
if 'split_timestamp' not in settings:
settings['split_timestamp'] = 0
if 'max_out_sz' not in settings:
@@ -198,6 +215,7 @@ if __name__ == '__main__':
settings['max_out_sz'] = long(settings['max_out_sz'])
settings['split_timestamp'] = int(settings['split_timestamp'])
+ settings['file_timestamp'] = int(settings['file_timestamp'])
settings['netmagic'] = settings['netmagic'].decode('hex')
if 'output_file' not in settings and 'output' not in settings: