1

scripts/cdb/cdb.py

@@ -1,4 +1,5 @@
 import os
+import time
 import pychrome
 
 import cmd
@@ -25,5 +26,11 @@ tab.start()
 initTab(tab)
 tab.call_method("Page.navigate", url="http://localhost:7456/", _timeout=5)
 
+time.sleep(3)
+cmd.processCmd(browser, tab, scriptmgr, 'b jcmatchvs.js:102')
 while True:
-    cmd.processCmd(browser, tab, scriptmgr)
+    cmdline= input('(cdb)').strip()
+    try:
+        cmd.processCmd(browser, tab, scriptmgr, cmdline)
+    except Exception as e:
+        print(e)

scripts/cdb/cmd.py

@@ -4,7 +4,7 @@ def _b_cmd(browser, tab, scriptmgr, params):
     line = int(params[0].split(':')[1])
     url = scriptmgr.getUrl(filename)
     print(params, url)
-    tab.debug = True
+#    tab.debug = True
     tab.call_method("Debugger.setBreakpointByUrl",
                     lineNumber=line,
                     url=url,
@@ -12,6 +12,9 @@ def _b_cmd(browser, tab, scriptmgr, params):
                     condition=''
     )
 
+def _bt_cmd(browser, tab, scriptmgr, params):
+    scriptmgr.dumpStack()
+
 def _p_cmd(browser, tab, scriptmgr, params):
     pass
 
@@ -21,6 +24,7 @@ def _processCdbCmd(cmd_str, browser, tab, scriptmgr):
         return
     cmd_hash = {
         'b': _b_cmd,
+        'bt': _bt_cmd,
         'p': None,
     }
     print(cmdlist)
@@ -29,8 +33,7 @@ def _processCdbCmd(cmd_str, browser, tab, scriptmgr):
     else:
         print('not found %s cmd' % cmdlist[0])
 
-def processCmd(browser, tab, scriptmgr):
-    cmdline= input('').strip()
+def processCmd(browser, tab, scriptmgr, cmdline):
     try:
         if len(cmdline) > 0 :
             if cmdline[0] == '!':

scripts/cdb/scriptmgr.py

@@ -1,7 +1,13 @@
 
+import json
+
+def getShortUrl(url):
+    return url.replace('http://localhost:7456/', '')
+
 class ScriptMgr:
 
     def __init__(self, tab):
+        self.frames = []
         self.scripts = []
         self.tab = tab
         self.tab.set_listener('Debugger.scriptParsed', self.onScriptParsed)
@@ -18,6 +24,9 @@ class ScriptMgr:
 
     def onPaused(self, **kwargs):
         print('onPaused')
+        self.frames = []
+        for frame in kwargs['callFrames']:
+            self.frames.append(frame)
 
     def onResumed(self, **kwargs):
         print('onResumed')
@@ -30,3 +39,15 @@ class ScriptMgr:
             if filename in script['url']:
                 return script['url']
         return None
+
+    def dumpStack(self):
+        for frame in self.frames:
+            print('%30s %s:%d' %
+                  (
+                      frame['functionName'] + ':' +
+                      str(json.loads(frame['callFrameId'])['ordinal']) + ':' +
+                      str(json.loads(frame['callFrameId'])['injectedScriptId']),
+                      getShortUrl(frame['url']),
+                      frame['functionLocation']['lineNumber'],
+                  )
+                  )