git/t/t5322-pack-objects-sparse.sh
Johannes Schindelin 966b4be276 t5[0-4]*: adjust the references to the default branch name "main"
Carefully excluding t5310, which is developed independently of the
current patch series at the time of writing, we now use `main` as
default branch in t5[0-4]*. This trick was performed via

	$ (cd t &&
	   sed -i -e 's/master/main/g' -e 's/MASTER/MAIN/g' \
		-e 's/Master/Main/g' -- t5[0-4]*.sh &&
	   git checkout HEAD -- t5310\*)

This allows us to define `GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main`
for those tests.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-19 15:44:18 -08:00

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#!/bin/sh
test_description='pack-objects object selection using sparse algorithm'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./test-lib.sh
test_expect_success 'setup repo' '
test_commit initial &&
for i in $(test_seq 1 3)
do
mkdir f$i &&
for j in $(test_seq 1 3)
do
mkdir f$i/f$j &&
echo $j >f$i/f$j/data.txt
done
done &&
git add . &&
git commit -m "Initialized trees" &&
for i in $(test_seq 1 3)
do
git checkout -b topic$i main &&
echo change-$i >f$i/f$i/data.txt &&
git commit -a -m "Changed f$i/f$i/data.txt"
done &&
cat >packinput.txt <<-EOF &&
topic1
^topic2
^topic3
EOF
git rev-parse \
topic1 \
topic1^{tree} \
topic1:f1 \
topic1:f1/f1 \
topic1:f1/f1/data.txt | sort >expect_objects.txt
'
test_expect_success 'non-sparse pack-objects' '
git pack-objects --stdout --revs --no-sparse <packinput.txt >nonsparse.pack &&
git index-pack -o nonsparse.idx nonsparse.pack &&
git show-index <nonsparse.idx | awk "{print \$2}" >nonsparse_objects.txt &&
test_cmp expect_objects.txt nonsparse_objects.txt
'
test_expect_success 'sparse pack-objects' '
git pack-objects --stdout --revs --sparse <packinput.txt >sparse.pack &&
git index-pack -o sparse.idx sparse.pack &&
git show-index <sparse.idx | awk "{print \$2}" >sparse_objects.txt &&
test_cmp expect_objects.txt sparse_objects.txt
'
test_expect_success 'duplicate a folder from f3 and commit to topic1' '
git checkout topic1 &&
echo change-3 >f3/f3/data.txt &&
git commit -a -m "Changed f3/f3/data.txt" &&
git rev-parse \
topic1~1 \
topic1~1^{tree} \
topic1^{tree} \
topic1 \
topic1:f1 \
topic1:f1/f1 \
topic1:f1/f1/data.txt | sort >required_objects.txt
'
test_expect_success 'non-sparse pack-objects' '
git pack-objects --stdout --revs --no-sparse <packinput.txt >nonsparse.pack &&
git index-pack -o nonsparse.idx nonsparse.pack &&
git show-index <nonsparse.idx | awk "{print \$2}" >nonsparse_objects.txt &&
comm -1 -2 required_objects.txt nonsparse_objects.txt >nonsparse_required_objects.txt &&
test_cmp required_objects.txt nonsparse_required_objects.txt
'
test_expect_success 'sparse pack-objects' '
git pack-objects --stdout --revs --sparse <packinput.txt >sparse.pack &&
git index-pack -o sparse.idx sparse.pack &&
git show-index <sparse.idx | awk "{print \$2}" >sparse_objects.txt &&
comm -1 -2 required_objects.txt sparse_objects.txt >sparse_required_objects.txt &&
test_cmp required_objects.txt sparse_required_objects.txt
'
# Demonstrate that the algorithms differ when we copy a tree wholesale
# from one folder to another.
test_expect_success 'duplicate a folder from f1 into f3' '
mkdir f3/f4 &&
cp -r f1/f1/* f3/f4 &&
git add f3/f4 &&
git commit -m "Copied f1/f1 to f3/f4" &&
cat >packinput.txt <<-EOF &&
topic1
^topic1~1
EOF
git rev-parse \
topic1 \
topic1^{tree} \
topic1:f3 | sort >required_objects.txt
'
test_expect_success 'non-sparse pack-objects' '
git pack-objects --stdout --revs --no-sparse <packinput.txt >nonsparse.pack &&
git index-pack -o nonsparse.idx nonsparse.pack &&
git show-index <nonsparse.idx | awk "{print \$2}" >nonsparse_objects.txt &&
comm -1 -2 required_objects.txt nonsparse_objects.txt >nonsparse_required_objects.txt &&
test_cmp required_objects.txt nonsparse_required_objects.txt
'
# --sparse is enabled by default by pack.useSparse
test_expect_success 'sparse pack-objects' '
GIT_TEST_PACK_SPARSE=-1 &&
git rev-parse \
topic1 \
topic1^{tree} \
topic1:f3 \
topic1:f3/f4 \
topic1:f3/f4/data.txt | sort >expect_sparse_objects.txt &&
git pack-objects --stdout --revs <packinput.txt >sparse.pack &&
git index-pack -o sparse.idx sparse.pack &&
git show-index <sparse.idx | awk "{print \$2}" >sparse_objects.txt &&
test_cmp expect_sparse_objects.txt sparse_objects.txt
'
test_expect_success 'pack.useSparse enables algorithm' '
git config pack.useSparse true &&
git pack-objects --stdout --revs <packinput.txt >sparse.pack &&
git index-pack -o sparse.idx sparse.pack &&
git show-index <sparse.idx | awk "{print \$2}" >sparse_objects.txt &&
test_cmp expect_sparse_objects.txt sparse_objects.txt
'
test_expect_success 'pack.useSparse overridden' '
git pack-objects --stdout --revs --no-sparse <packinput.txt >sparse.pack &&
git index-pack -o sparse.idx sparse.pack &&
git show-index <sparse.idx | awk "{print \$2}" >sparse_objects.txt &&
test_cmp required_objects.txt sparse_objects.txt
'
test_done