d30ff6cfae
Instead of constantly making these updates, let's just remove the year since things are stored in git anyways, and this is not an actual modern legal risk anymore.
124 lines
3.3 KiB
Python
Executable File
124 lines
3.3 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# Copyright (C) James Shubin and the project contributors
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# Written by James Shubin <james@shubin.ca> and the project contributors
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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# This program filters golang stack traces. Modify the filter by editing the
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# filter_chunk function. This is a quick hack to help me get work done. It's
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# written in python to encourage some golang enthusiast to rewrite it in golang
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# and to expand the functionality.
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import sys
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if len(sys.argv) == 2 and sys.argv[1] != "-":
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lines = open(sys.argv[1], "r").readlines()
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else:
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lines = sys.stdin.readlines()
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print("read: %d lines" % len(lines))
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# find program start
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start = -1
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for i in range(len(lines)):
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line = lines[i]
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if line.startswith("PC="):
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start=i
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break
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if start == -1:
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print("could not find program start, looking for PC=???", file=sys.stderr)
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sys.exit(1)
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print("starts at line: %d" % (start+1)) # +1 because we're zero based
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def is_chunk(line):
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if line == "main.main()" or line.startswith("goroutine"):
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return True
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return False
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def is_end(line):
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# register junk as seen at the end
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rx = ["rax", "rbx", "rcx", "rdx", "rdi", "rsi", "rbp", "rsp", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "rip", "rflags", "cs", "fs", "gs"]
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for x in rx:
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if line.startswith(x + " "):
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return True
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return False
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def filter_chunk(chunk):
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lines = chunk.split("\n")
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if len(lines) < 2:
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return False
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package_line = lines[1]
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if package_line.startswith("github.com/purpleidea/mgmt/vendor/"):
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return False
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if package_line.startswith("github.com/") and not package_line.startswith("github.com/purpleidea/mgmt/"):
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return False
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if package_line.startswith("internal/poll"):
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return False
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if package_line.startswith("context.propagateCancel"):
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return False
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if package_line.startswith("runtime.gopark"):
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return False
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if package_line.startswith("runtime.futex"):
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return False
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if package_line.startswith("os/signal.signal_recv"):
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return False
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return True
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chunks = []
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for i in range(start+1, len(lines)):
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line = lines[i]
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# found a chunk
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if is_chunk(line):
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chunk = line
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for j in range(i+1, len(lines)):
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jline = lines[j]
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if is_chunk(jline) or is_end(jline):
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chunks.append(chunk)
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i = j
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if is_end(jline):
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end = j
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break
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# else
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chunk = chunk + jline
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print("found %d chunks" % len(chunks))
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count = 0
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for i in range(len(chunks)):
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chunk = chunks[i]
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if not filter_chunk(chunk):
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continue
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print(">>> chunk %d:" % i)
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print(chunk)
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print("")
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count = count + 1
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print("got %d filtered chunks" % count)
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print("ends at line: %d" % (end+1)) # +1 because we're zero based
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for i in range(end, len(lines)):
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line = lines[i]
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print("%s" % line, end='') # already comes with a newline
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