run-tests: redefine --with-hg so it takes the 'hg' script to run. - in parseargs(), check that --with-hg value is valid - add handy --local option for "--with-hg=../hg" - ensure that we always set PATH and PYTHONPATH (not just when doing a temporary install) - override any existing PYTHONPATH, so test success does not depend on whatever happens to be in the caller's environment - give tests a little more control by exporting $PYTHON to the environment; needed by test-convert and test-mergetool when they run hg with a stripped-down $PATH Also, add a big comment explaining all the corner cases to test for the next person who tries to modify this script.

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#!/bin/sh

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hg init

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echo % should fail

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hg add .hg/00changelog.i

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mkdir a

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echo a > a/a

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hg ci -Ama

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ln -s a b

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echo b > a/b

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echo % should fail

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hg add b/b

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echo % should succeed

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hg add b

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echo % should still fail - maybe

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hg add b/b

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echo % unbundle tampered bundle

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hg init target

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cd target

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hg unbundle $TESTDIR/tampered.hg

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echo % attack .hg/test

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hg manifest -r0

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hg update -Cr0

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echo % attack foo/.hg/test

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hg manifest -r1

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hg update -Cr1

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echo % attack back/test where back symlinks to ..

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hg manifest -r2

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hg update -Cr2

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echo % attack ../test

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hg manifest -r3

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hg update -Cr3

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echo % attack /tmp/test

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hg manifest -r4

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hg update -Cr4 2>&1 | sed -e "s|/.*/test-audit-path|[HGTMP]/test-audit-path|"

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exit 0