Use the pager given by the environment to display long output
Unix systems usually have a PAGER environment variable set.
If it is set, mercurial will use the pager application to display
output.
Two configuration variables are available to influence the behaviour of the
pager. ui.pager sets the pager application. The pager is
only used if ui.usepager is true. By default ui.usepager is disabled.
#!/bin/sh
heads()
{
hg heads --template '#rev#: #desc|firstline|strip#\n' "$@"
}
hg init a
cd a
echo 'root' >root
hg add root
hg commit -m "Adding root node"
heads
echo '-------'
heads .
echo '======='
echo 'a' >a
hg add a
hg branch a
hg commit -m "Adding a branch"
heads
echo '-------'
heads .
echo '======='
hg update -C 0
echo 'b' >b
hg add b
hg branch b
hg commit -m "Adding b branch"
heads
echo '-------'
heads .
echo '======='
echo 'bh1' >bh1
hg add bh1
hg commit -m "Adding b branch head 1"
heads
echo '-------'
heads .
echo '======='
hg update -C 2
echo 'bh2' >bh2
hg add bh2
hg commit -m "Adding b branch head 2"
heads
echo '-------'
heads .
echo '======='
hg update -C 2
echo 'bh3' >bh3
hg add bh3
hg commit -m "Adding b branch head 3"
heads
echo '-------'
heads .
echo '======='
hg merge 4
hg commit -m "Merging b branch head 2 and b branch head 3"
heads
echo '-------'
heads .
echo '======='
echo 'c' >c
hg add c
hg branch c
hg commit -m "Adding c branch"
heads
echo '-------'
heads .
echo '======='
heads -r 3 .
echo $?
echo '-------'
heads -r 2 .
echo $?
echo '-------'
hg update -C 4
echo $?
echo '-------'
heads -r 3 .
echo $?
echo '-------'
heads -r 2 .
echo $?
echo '-------'
heads -r 7 .
echo $?
echo '======='
for i in 0 1 2 3 4 5 6 7; do
hg update -C "$i"
heads
echo '-------'
heads .
echo '-------'
done
echo '======='
for i in a b c z; do
heads "$i"
echo '-------'
done
echo '======='
heads 0 1 2 3 4 5 6 7