#!/bin/sh

test_description='git cat-file textconv support'
. ./test-lib.sh

cat >helper <<'EOF'
#!/bin/sh
grep -q '^bin: ' "$1" || { echo "E: $1 is not \"binary\" file" 1>&2; exit 1; }
sed 's/^bin: /converted: /' "$1"
EOF
chmod +x helper

test_expect_success 'setup ' '
        echo "bin: test" >one.bin &&
        if test_have_prereq SYMLINKS; then
                ln -s one.bin symlink.bin
        fi &&
        git add . &&
        GIT_AUTHOR_NAME=Number1 git commit -a -m First --date="2010-01-01 18:00:00" &&
        echo "bin: test version 2" >one.bin &&
        GIT_AUTHOR_NAME=Number2 git commit -a -m Second --date="2010-01-01 20:00:00"
'

cat >expected <<EOF
fatal: git cat-file --textconv: unable to run textconv on :one.bin
EOF

test_expect_success 'no filter specified' '
        git cat-file --textconv :one.bin 2>result
        test_cmp expected result
'

test_expect_success 'setup textconv filters' '
        echo "*.bin diff=test" >.gitattributes &&
        git config diff.test.textconv ./helper &&
        git config diff.test.cachetextconv false
'

cat >expected <<EOF
bin: test version 2
EOF

test_expect_success 'cat-file without --textconv' '
        git cat-file blob :one.bin >result &&
        test_cmp expected result
'

cat >expected <<EOF
bin: test
EOF

test_expect_success 'cat-file without --textconv on previous commit' '
        git cat-file -p HEAD^:one.bin >result &&
        test_cmp expected result
'

cat >expected <<EOF
converted: test version 2
EOF

test_expect_success 'cat-file --textconv on last commit' '
        git cat-file --textconv :one.bin >result &&
        test_cmp expected result
'

cat >expected <<EOF
converted: test
EOF

test_expect_success 'cat-file --textconv on previous commit' '
        git cat-file --textconv HEAD^:one.bin >result &&
        test_cmp expected result
'

test_expect_success SYMLINKS 'cat-file without --textconv (symlink)' '
        git cat-file blob :symlink.bin >result &&
        printf "%s" "one.bin" >expected
        test_cmp expected result
'


test_expect_success SYMLINKS 'cat-file --textconv on index (symlink)' '
        ! git cat-file --textconv :symlink.bin 2>result &&
        cat >expected <<\EOF &&
fatal: git cat-file --textconv: unable to run textconv on :symlink.bin
EOF
        test_cmp expected result
'

test_expect_success SYMLINKS 'cat-file --textconv on HEAD (symlink)' '
        ! git cat-file --textconv HEAD:symlink.bin 2>result &&
        cat >expected <<EOF &&
fatal: git cat-file --textconv: unable to run textconv on HEAD:symlink.bin
EOF
        test_cmp expected result
'

test_done