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linelog: fix infinite loop vulnerability...
linelog: fix infinite loop vulnerability Checking `len(lines)` is not a great way of detecting infinite loops, as demonstrated in the added test. Therefore check instruction count instead. The original C implementation does not have this problem. There are a few other places where the C implementation enforces more strictly, like `a1 <= a2`, `b1 <= b2`, `rev > 0`. But they are optional. Test Plan: Add a test. The old code forces the test to time out. Differential Revision: https://phab.mercurial-scm.org/D4151
Jun Wu -
r38970:27a54096 default
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Mercurial

Mercurial is a fast, easy to use, distributed revision control tool for software developers.

Basic install:

$ make            # see install targets
$ make install    # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg              # see help

Running without installing:

$ make local      # build for inplace usage
$ ./hg --version  # should show the latest version

See https://mercurial-scm.org/ for detailed installation instructions, platform-specific notes, and Mercurial user information.