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
cat <<EOF > merge
import sys, os
print "merging for", os.path.basename(sys.argv[1])
EOF
HGMERGE="python ../merge"; export HGMERGE
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"
hg update 0
echo This is file c1 > c
hg add c
hg commit -m "commit #2" -d "1000000 0"
echo This is file b1 > b
echo %% no merges expected
hg merge 1
hg diff --nodates
hg status
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"
hg update 0
echo This is file c1 > c
hg add c
hg commit -m "commit #2" -d "1000000 0"
echo This is file b2 > b
echo %% merge should fail
hg merge 1
echo %% merge of b expected
hg merge -f 1
hg diff --nodates
hg status
cd ..; rm -r t
echo %%
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"
echo This is file b22 > b
hg commit -m "commit #2" -d "1000000 0"
hg update 1
echo This is file c1 > c
hg add c
hg commit -m "commit #3" -d "1000000 0"
echo 'Contents of b should be "this is file b1"'
cat b
echo This is file b22 > b
echo %% merge fails
hg merge 2
echo %% merge expected!
hg merge -f 2
hg diff --nodates
hg status
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"
echo This is file b22 > b
hg commit -m "commit #2" -d "1000000 0"
hg update 1
echo This is file c1 > c
hg add c
hg commit -m "commit #3" -d "1000000 0"
echo This is file b33 > b
echo %% merge of b should fail
hg merge 2
echo %% merge of b expected
hg merge -f 2
hg diff --nodates
hg status