Backed out changeset 2ab464771b7d15c60014996d2853efc92cdb8465 - it always runs chmod - uses chmod in an unsafe way - if somebody does a clone of a repo, runs 'make tests', everything is fine, so he can assume the original repo is fine, too, but it is not.

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#!/bin/sh

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hg init a

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echo a > a/a

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hg --cwd a ci -A -m a

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hg clone a b

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echo b > b/b

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hg --cwd b ci -A -m b

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chmod 100 a/.hg

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hg --cwd b push ../a

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chmod 700 a/.hg