Backed out changeset cfa477946181824f4c769580ebf59710090ba08a
Only printenv was changed, not the actual execution of hooks.
And not setting an empty value might cause problems on platforms
which can't always remove variables from the environment.
#!/bin/sh
mkdir t
cd t
hg init
echo This is file a1 > a
hg add a
hg commit -m "commit #0" -d "1000000 0"
echo This is file b1 > b
hg add b
hg commit -m "commit #1" -d "1000000 0"
rm b
hg update 0
echo This is file b2 > b
hg add b
hg commit -m "commit #2" -d "1000000 0"
cd ..; rm -r t
mkdir t
cd t
hg init
echo This is file a1 > a
hg add a
hg commit -m "commit #0" -d "1000000 0"
echo This is file b1 > b
hg add b
hg commit -m "commit #1" -d "1000000 0"
rm b
hg update 0
echo This is file b2 > b
hg commit -A -m "commit #2" -d "1000000 0"
cd ..; rm -r t
mkdir t
cd t
hg init
echo This is file a1 > a
hg add a
hg commit -m "commit #0" -d "1000000 0"
echo This is file b1 > b
hg add b
hg commit -m "commit #1" -d "1000000 0"
rm b
hg remove b
hg update 0
echo This is file b2 > b
hg commit -A -m "commit #2" -d "1000000 0"