From: Ian Jackson <ian@liberator.relativity.greenend.org.uk>
Date: Sun, 17 May 2009 01:02:45 +0000 (+0100)
Subject: overwriting displayer works
X-Git-Tag: 1.0~50
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~yarrgweb/git?p=ypp-sc-tools.db-live.git;a=commitdiff_plain;h=964db588289ad72ff165ca569456a56213ba26cc

overwriting displayer works
---

diff --git a/yoweb-scrape b/yoweb-scrape
index 2a35590..1eeb8a3 100755
--- a/yoweb-scrape
+++ b/yoweb-scrape
@@ -13,6 +13,7 @@ import errno
 import sys
 import re as regexp
 import random
+import curses
 from optparse import OptionParser
 
 from BeautifulSoup import BeautifulSoup
@@ -58,9 +59,9 @@ class Fetcher:
 			if oe.errno != errno.EEXIST: raise
 		self._cache_scan(time.time())
 
-	def _default_ocean(self):
+	def default_ocean(self, ocean='ice'):
 		if self.ocean is None:
-			self.ocean = 'ice'
+			self.ocean = ocean
 
 	def _cache_scan(self, now):
 		# returns list of ages, unsorted
@@ -141,7 +142,7 @@ class Fetcher:
 		return data
 
 	def yoweb(self, kind, tail, max_age):
-		self._default_ocean()
+		self.default_ocean()
 		url = 'http://%s.puzzlepirates.com/yoweb/%s%s' % (
 			self.ocean, kind, tail)
 		return self.fetch(url, max_age)
@@ -691,6 +692,9 @@ class ProgressPrintPercentage:
 	def progress(self,*a):
 		self._f.write(self.progress_string(*a))
 		self._f.flush()
+	def show_init(self, pirate, ocean):
+		print >>self._f, 'Starting up, %s on the %s ocean' % (
+			pirate, ocean)
 	def caughtup(self):
 		self._f.write('                   \r')
 		self._f.flush()
@@ -705,9 +709,11 @@ def prep_chat_log(args, bu,
 	logfn_re = '(?:.*/)?([A-Z][a-z]+)_([a-z]+)_chat-log-\\w+$'
 	match = regexp.match(logfn_re, logfn)
 	if not match: bu('chat log filename is not in default format')
-	(pirate, fetcher.ocean) = match.groups()
+	(pirate, ocean) = match.groups()
+	fetcher.default_ocean(ocean)
 	
 	myself = PirateInfo(pirate,max_myself_age)
+	progress.show_init(pirate, fetcher.ocean)
 	track = ChatLogTracker(myself, logfn)
 
 	opts.debug -= 1
@@ -731,6 +737,62 @@ class Display_dumb(ProgressPrintPercentage):
 		ProgressPrintPercentage.__init__(self)
 	def show(self, s):
 		print '\n\n', s;
+	def realstart(self):
+		pass
+
+class Display_overwrite(ProgressPrintPercentage):
+	def __init__(self):
+		ProgressPrintPercentage.__init__(self)
+
+		null = file('/dev/null','w')
+		curses.setupterm(fd=null.fileno())
+
+		self._clear = curses.tigetstr('clear')
+		if not self._clear:
+			self._debug('missing clear!')
+			self.show = Display_dumb.show
+			return
+
+		self._t = {'el':'', 'ed':''}
+		if not self._init_sophisticated():
+			for k in self._t.keys(): self._t[k] = ''
+			self._t['ho'] = self._clear
+
+	def _debug(self,m): debug('display overwrite: '+m)
+
+	def _init_sophisticated(self):
+		for k in self._t.keys():
+			s = curses.tigetstr(k)
+			self._t[k] = s
+		self._t['ho'] = curses.tigetstr('ho')
+		if not self._t['ho']:
+			cup = curses.tigetstr('cup')
+			self._t['ho'] = curses.tparm(cup,0,0)
+		missing = [k for k in self._t.keys() if not self._t[k]]
+		if missing:
+			self.debug('missing '+(' '.join(missing)))
+			return 0
+		return 1
+
+	def show(self, s):
+		w = sys.stdout.write
+		def wti(k): w(self._t[k])
+
+		wti('ho')
+		nl = ''
+		for l in s.rstrip().split('\n'):
+			w(nl)
+			w(l)
+			wti('el')
+			nl = '\r\n'
+		wti('ed')
+		w(' ')
+		sys.stdout.flush()
+
+	def realstart(self):
+		sys.stdout.write(self._clear)
+		sys.stdout.flush()
+			
 
 def do_ship_aid(args, bu):
 	if opts.ship_duty is None: opts.ship_duty = True
@@ -744,6 +806,8 @@ def do_ship_aid(args, bu):
 		if t is None: return ' ' * 22
 		return " %-4s %-16s" % (format_time_interval(now - t),e)
 
+	displayer.realstart()
+
 	while True:
 		track.catchup()
 		now = time.time()