commit b5326a1cd5bbc0d2ed3d3f74b4905b1185f4ff9b
Author: Jake Wharton <jw@squareup.com>
Date:   Tue Jun 11 22:59:50 2013 -0700

    Initial import.

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..670b3d3
--- /dev/null
+++ b/README.md
@@ -0,0 +1,26 @@
+PID Cat
+=======
+
+An update to Jeff Sharkey's excellent [logcat color script][1] which only shows
+log entries for processes from a specific application package.
+
+During application development you often want to only display log messages
+coming from your app. Unfortunately, because the process ID changes every time
+you deploy to the phone it becomes a challenge to grep for the right thing.
+
+This script solves that problem by filtering by application package. Supply the
+target pacakge as the sole argument to the python script and enjoy a more
+convenient development process.
+
+    ./pidcat.py com.oprah.bees.android
+
+
+Here is an example of the output when running for Twitter and Google Plus
+
+![Example screen](screen.png)
+
+
+
+
+
+ [1]: http://jsharkey.org/blog/2009/04/22/modifying-the-android-logcat-stream-for-full-color-debugging/
\ No newline at end of file
diff --git a/pidcat.py b/pidcat.py
new file mode 100755
index 0000000..da497c3
--- /dev/null
+++ b/pidcat.py
@@ -0,0 +1,191 @@
+#!/usr/bin/python
+
+'''
+Copyright 2009, The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License"); 
+you may not use this file except in compliance with the License. 
+You may obtain a copy of the License at 
+
+  http://www.apache.org/licenses/LICENSE-2.0 
+
+Unless required by applicable law or agreed to in writing, software 
+distributed under the License is distributed on an "AS IS" BASIS, 
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
+See the License for the specific language governing permissions and 
+limitations under the License.
+'''
+
+# Script to highlight adb logcat output for console
+# Written by Jeff Sharkey, http://jsharkey.org/
+# Piping detection and popen() added by other Android team members
+# Package name restriction by Jake Wharton, http://jakewharton.com
+
+import os, sys, re, fcntl, termios, struct
+from StringIO import StringIO
+
+if len(sys.argv) != 2:
+  print 'Target package name required.'
+  print
+  print 'Usage: %s com.example.foo' % sys.argv[0]
+  sys.exit(1)
+package = sys.argv[1]
+
+# unpack the current terminal width/height
+data = fcntl.ioctl(sys.stdout.fileno(), termios.TIOCGWINSZ, '1234')
+HEIGHT, WIDTH = struct.unpack('hh',data)
+
+TAG_WIDTH = 22
+HEADER_SIZE = TAG_WIDTH + 1 + 3 + 1 # space, level, space
+
+BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE = range(8)
+
+def colorize(message, fg=None, bg=None):
+  ret = ''
+  codes = []
+  if fg is not None: codes.append('3%d' % fg)
+  if bg is not None: codes.append('10%d' % bg)
+  if codes:
+    ret += '\033[%sm' % ';'.join(codes)
+  ret += message
+  if codes:
+    ret += '\033[0m'
+  return ret
+
+def indent_wrap(message):
+  wrap_area = WIDTH - HEADER_SIZE
+  messagebuf = StringIO()
+  current = 0
+  while current < len(message):
+    next = min(current + wrap_area, len(message))
+    messagebuf.write(message[current:next])
+    if next < len(message):
+      messagebuf.write('\n%s' % (' ' * HEADER_SIZE))
+    current = next
+  return messagebuf.getvalue()
+
+
+LAST_USED = [RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN]
+KNOWN_TAGS = {
+  'dalvikvm': WHITE,
+  'Process': WHITE,
+  'ActivityManager': WHITE,
+  'ActivityThread': WHITE,
+  'AndroidRuntime': CYAN,
+  'jdwp': WHITE,
+}
+
+def allocate_color(tag):
+  # this will allocate a unique format for the given tag
+  # since we dont have very many colors, we always keep track of the LRU
+  if tag not in KNOWN_TAGS:
+    KNOWN_TAGS[tag] = LAST_USED[0]
+  color = KNOWN_TAGS[tag]
+  if color in LAST_USED:
+    LAST_USED.remove(color)
+    LAST_USED.append(color)
+  return color
+
+
+RULES = {
+  #re.compile(r"([\w\.@]+)=([\w\.@]+)"): r"%s\1%s=%s\2%s" % (format(fg=BLUE), format(fg=GREEN), format(fg=BLUE), format(reset=True)),
+}
+
+TAGTYPES = {
+  'V': colorize(' V ', fg=WHITE, bg=BLACK),
+  'D': colorize(' D ', fg=BLACK, bg=BLUE),
+  'I': colorize(' I ', fg=BLACK, bg=GREEN),
+  'W': colorize(' W ', fg=BLACK, bg=YELLOW),
+  'E': colorize(' E ', fg=BLACK, bg=RED),
+}
+
+PID_START = re.compile(r'^Start proc ([a-zA-Z0-9._]+) for ([a-z]+ [^:]+): pid=(\d+) uid=(\d+) gids=(.*)\r?$')
+PID_KILL  = re.compile(r'^Killing (\d+):([a-zA-Z0-9._]+)/[^:]+: (.*)\r?$')
+PID_DEATH = re.compile(r'^No longer want ([a-zA-Z0-9._]+) \(pid (\d+)\): .*\r?$')
+LOG_LINE  = re.compile(r'^([A-Z])/([^\(]+)\( *(\d+)\): (.*)\r?$')
+
+input = os.popen('adb logcat')
+pid = None
+
+while True:
+  try:
+    line = input.readline()
+  except KeyboardInterrupt:
+    break
+
+  log_line = LOG_LINE.match(line)
+  if not log_line is None:
+    level, tag, owner, message = log_line.groups()
+
+    start = PID_START.match(message)
+    if start is not None:
+      line_package, target, line_pid, line_uid, line_gids = start.groups()
+
+      if line_package == package:
+        pid = line_pid
+
+        linebuf = StringIO()
+        linebuf.write('\n' * 3)
+        linebuf.write(colorize(' ' * (HEADER_SIZE - 1), bg=WHITE))
+        linebuf.write(' Starting for %s\n' % target)
+        linebuf.write(colorize(' ' * (HEADER_SIZE - 1), bg=WHITE))
+        linebuf.write(' PID: %s   UID: %s   GIDs: %s' % (line_pid, line_uid, line_gids))
+        linebuf.write('\n')
+
+        print linebuf.getvalue()
+
+    kill = PID_KILL.match(message)
+    if kill is not None:
+      line_pid, line_package, reason = kill.groups()
+      if 'ActivityManager' == tag and pid == line_pid and package == line_package:
+        pid = None
+
+        linebuf = StringIO()
+        linebuf.write('\n')
+        linebuf.write(colorize(' ' * (HEADER_SIZE - 1), bg=RED))
+        linebuf.write(' Killing because %s' % reason)
+        linebuf.write('\n' * 3)
+
+        print linebuf.getvalue()
+
+    death = PID_DEATH.match(message)
+    if death is not None:
+      line_package, line_pid = death.groups()
+      if 'ActivityManager' == tag and pid == line_pid and package == line_package:
+        pid = None
+
+        linebuf = StringIO()
+        linebuf.write('\n')
+        linebuf.write(colorize(' ' * (HEADER_SIZE - 1), bg=RED))
+        linebuf.write(' No longer wanted')
+        linebuf.write('\n' * 3)
+
+        print linebuf.getvalue()
+
+    if pid is None or owner != pid:
+      continue
+
+    linebuf = StringIO()
+
+    # right-align tag title and allocate color if needed
+    tag = tag.strip()
+    color = allocate_color(tag)
+    tag = tag[-TAG_WIDTH:].rjust(TAG_WIDTH)
+    linebuf.write(colorize(tag, fg=color))
+    linebuf.write(' ')
+
+    # write out level colored edge
+    if level not in TAGTYPES: break
+    linebuf.write(TAGTYPES[level])
+    linebuf.write(' ')
+
+    # format tag message using rules
+    for matcher in RULES:
+      replace = RULES[matcher]
+      message = matcher.sub(replace, message)
+
+    linebuf.write(indent_wrap(message))
+    line = linebuf.getvalue()
+
+  print line
+  if len(line) == 0: break
diff --git a/screen.png b/screen.png
new file mode 100644
index 0000000..8c0cc02
Binary files /dev/null and b/screen.png differ