view tests/test-git-export @ 3049:461573aa02ef

[churn] Ignore merge csets

Merge changesets attributed a large number of lines to people that didn't
actually develop it, but simply merged the code. By ignoring merges, we get
a more accurate picture of how much code everyone changed.

#!/bin/sh

hg init a
cd a

echo start > start
hg ci -Amstart -d '0 0'
echo new > new
hg ci -Amnew -d '0 0'
echo '% new file'
hg diff --git -r 0 | sed -e "s/\(+++ [a-zA-Z0-9_/.-]*\).*/\1/" \
    -e "s/\(--- [a-zA-Z0-9_/.-]*\).*/\1/"

hg cp new copy
hg ci -mcopy -d '0 0'
echo '% copy'
hg diff --git -r 1:tip | sed -e "s/\(+++ [a-zA-Z0-9_/.-]*\).*/\1/" \
    -e "s/\(--- [a-zA-Z0-9_/.-]*\).*/\1/"

hg mv copy rename
hg ci -mrename -d '0 0'
echo '% rename'
hg diff --git -r 2:tip | sed -e "s/\(+++ [a-zA-Z0-9_/.-]*\).*/\1/" \
    -e "s/\(--- [a-zA-Z0-9_/.-]*\).*/\1/"

hg rm rename
hg ci -mdelete -d '0 0'
echo '% delete'
hg diff --git -r 3:tip | sed -e "s/\(+++ [a-zA-Z0-9_/.-]*\).*/\1/" \
    -e "s/\(--- [a-zA-Z0-9_/.-]*\).*/\1/"

cat > src <<EOF
1
2
3
4
5
EOF
hg ci -Amsrc -d '0 0'
chmod +x src
hg ci -munexec -d '0 0'
echo '% chmod 644'
hg diff --git -r 5:tip | sed -e "s/\(+++ [a-zA-Z0-9_/.-]*\).*/\1/" \
    -e "s/\(--- [a-zA-Z0-9_/.-]*\).*/\1/"

hg mv src dst
chmod -x dst
echo a >> dst
hg ci -mrenamemod -d '0 0'
echo '% rename+mod+chmod'
hg diff --git -r 6:tip | sed -e "s/\(+++ [a-zA-Z0-9_/.-]*\).*/\1/" \
    -e "s/\(--- [a-zA-Z0-9_/.-]*\).*/\1/"