tests/test-churn

color: colorize based on output labels instead of parsing output

By overriding ui.write(), ui.write_err(), ui.popbuffer(), and ui.label(),
the color extension can avoid parsing command output and simply colorize
output based on labels.

As before, the color extension provides a list of default colors for
core commands/labels. Other extensions can provide their own defaults by
specifying a colortable dict (similar to cmdtable).

In this process, --color is promoted to a global option and the deprecated
--no-color option is removed.

#!/bin/sh

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

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
mkdir -p d/e
echo abc > d/e/f1.txt
hg ci -Am "add d/e/f1.txt" -u user1 -d 12:45 d/e/f1.txt
mkdir -p d/g
echo def > d/g/f2.txt
hg ci -Am "add d/g/f2.txt" -u user1 -d 13:00 d/g/f2.txt

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

echo % churn with separated added/removed lines
hg rm d/g/f2.txt
hg ci -Am "removed d/g/f2.txt" -u user1 -d 14:00 d/g/f2.txt
hg churn --diffstat
echo % churn --diffstat with color
hg --config extensions.color= churn --diffstat --color=always

echo % changeset number churn
hg churn -c

cd ..

# issue 833: ZeroDivisionError
hg init issue-833
cd issue-833
touch foo
hg ci -Am foo
# this was failing with a ZeroDivisionError
hg churn
cd ..