tests/test-churn

patch/diff: use a separate function to write the first line of a file diff

#!/bin/sh

echo "[extensions]" >> $HGRCPATH
echo "churn=" >> $HGRCPATH

COLUMNS=80; export COLUMNS

echo % create test repository
hg init repo
cd repo
echo a > a
hg ci -Am adda -u user1 -d 6:00
echo b >> a
echo b > b
hg ci -m changeba -u user2 -d 9:00 a
hg ci -Am addb -u user2 -d 9:30
echo c >> a
echo c >> b
echo c > c
hg ci -m changeca -u user3 -d 12:00 a
hg ci -m changecb -u user3 -d 12:15 b
hg ci -Am addc -u user3 -d 12:30

echo % churn all
hg churn
echo % churn up to rev 2
hg churn -r :2
echo % churn with aliases
cat > ../aliases <<EOF
user1 alias1
user3 alias3
EOF
hg churn --aliases ../aliases
echo % churn with column specifier
COLUMNS=40 hg churn
echo % churn by hour
hg churn -f '%H' -s