Mercurial > hg
annotate contrib/hgclient.py @ 26362:3bfc473f4d33
gitweb, monoblue: fix vertical align of spans in .sourcelines
Empty lines in file view could produce an inexplicable margin before the next
line (most noticeable in browsers on webkit/blink engine). That was making
empty lines seem taller than the rest.
Instead of using default vertical align, let's set it to 'top'.
This issue is actually present in paper, and only recently got into gitweb
(2239626369f5) and monoblue (119202d4d7a4). There's a bit more to it in paper,
so that will be dealt with in a future patch.
Recipe to see live: preferably using a webkit/blink browser, such as chromium,
browse a file with empty lines, e.g. https://selenic.com/hg/file/3.5/README#l8
Selecting a block of text that includes empty lines will reveal white "breaks"
in the selection. Highlighted line (#l8) also shows such a break below itself.
author | Anton Shestakov <av6@dwimlabs.net> |
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date | Fri, 25 Sep 2015 03:02:38 +0800 |
parents | 24c5fd2894f8 |
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1 # A minimal client for Mercurial's command server |
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2 |
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3 import os, sys, signal, struct, socket, subprocess, time, cStringIO |
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4 |
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5 def connectpipe(path=None): |
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6 cmdline = ['hg', 'serve', '--cmdserver', 'pipe'] |
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7 if path: |
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8 cmdline += ['-R', path] |
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9 |
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10 server = subprocess.Popen(cmdline, stdin=subprocess.PIPE, |
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11 stdout=subprocess.PIPE) |
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12 |
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13 return server |
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14 |
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15 class unixconnection(object): |
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16 def __init__(self, sockpath): |
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17 self.sock = sock = socket.socket(socket.AF_UNIX) |
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18 sock.connect(sockpath) |
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19 self.stdin = sock.makefile('wb') |
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20 self.stdout = sock.makefile('rb') |
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21 |
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22 def wait(self): |
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23 self.stdin.close() |
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24 self.stdout.close() |
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25 self.sock.close() |
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26 |
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27 class unixserver(object): |
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28 def __init__(self, sockpath, logpath=None, repopath=None): |
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29 self.sockpath = sockpath |
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30 cmdline = ['hg', 'serve', '--cmdserver', 'unix', '-a', sockpath] |
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31 if repopath: |
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32 cmdline += ['-R', repopath] |
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33 if logpath: |
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34 stdout = open(logpath, 'a') |
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35 stderr = subprocess.STDOUT |
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36 else: |
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37 stdout = stderr = None |
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38 self.server = subprocess.Popen(cmdline, stdout=stdout, stderr=stderr) |
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39 # wait for listen() |
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40 while self.server.poll() is None: |
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41 if os.path.exists(sockpath): |
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42 break |
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43 time.sleep(0.1) |
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44 |
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45 def connect(self): |
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46 return unixconnection(self.sockpath) |
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47 |
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48 def shutdown(self): |
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49 os.kill(self.server.pid, signal.SIGTERM) |
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50 self.server.wait() |
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51 |
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52 def writeblock(server, data): |
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53 server.stdin.write(struct.pack('>I', len(data))) |
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54 server.stdin.write(data) |
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55 server.stdin.flush() |
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56 |
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57 def readchannel(server): |
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58 data = server.stdout.read(5) |
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59 if not data: |
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60 raise EOFError |
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61 channel, length = struct.unpack('>cI', data) |
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62 if channel in 'IL': |
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63 return channel, length |
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64 else: |
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65 return channel, server.stdout.read(length) |
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66 |
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67 def sep(text): |
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68 return text.replace('\\', '/') |
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69 |
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70 def runcommand(server, args, output=sys.stdout, error=sys.stderr, input=None, |
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71 outfilter=lambda x: x): |
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72 print '*** runcommand', ' '.join(args) |
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73 sys.stdout.flush() |
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74 server.stdin.write('runcommand\n') |
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75 writeblock(server, '\0'.join(args)) |
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76 |
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77 if not input: |
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78 input = cStringIO.StringIO() |
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79 |
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80 while True: |
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81 ch, data = readchannel(server) |
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82 if ch == 'o': |
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83 output.write(outfilter(data)) |
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84 output.flush() |
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85 elif ch == 'e': |
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86 error.write(data) |
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87 error.flush() |
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88 elif ch == 'I': |
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89 writeblock(server, input.read(data)) |
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90 elif ch == 'L': |
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91 writeblock(server, input.readline(data)) |
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92 elif ch == 'r': |
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93 ret, = struct.unpack('>i', data) |
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94 if ret != 0: |
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95 print ' [%d]' % ret |
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96 return ret |
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97 else: |
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98 print "unexpected channel %c: %r" % (ch, data) |
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99 if ch.isupper(): |
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100 return |
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101 |
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102 def check(func, connect=connectpipe): |
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103 sys.stdout.flush() |
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104 server = connect() |
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105 try: |
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106 return func(server) |
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107 finally: |
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108 server.stdin.close() |
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109 server.wait() |