#!/bin/sh

test_description='test finding specific blobs in the revision walking'
. ./test-lib.sh

test_expect_success 'setup ' '
        git commit --allow-empty -m "empty initial commit" &&

        echo "Hello, world!" >greeting &&
        git add greeting &&
        git commit -m "add the greeting blob" && # borrowed from Git from the Bottom Up
        git tag -m "the blob" greeting $(git rev-parse HEAD:greeting) &&

        echo asdf >unrelated &&
        git add unrelated &&
        git commit -m "unrelated history" &&

        git revert HEAD^ &&

        git commit --allow-empty -m "another unrelated commit"
'

test_expect_success 'find the greeting blob' '
        cat >expect <<-EOF &&
        Revert "add the greeting blob"
        add the greeting blob
        EOF

        git log --format=%s --find-object=greeting^{blob} >actual &&

        test_cmp expect actual
'

test_expect_success 'setup a tree' '
        mkdir a &&
        echo asdf >a/file &&
        git add a/file &&
        git commit -m "add a file in a subdirectory"
'

test_expect_success 'find a tree' '
        cat >expect <<-EOF &&
        add a file in a subdirectory
        EOF

        git log --format=%s -t --find-object=HEAD:a >actual &&

        test_cmp expect actual
'

test_expect_success 'setup a submodule' '
        test_create_repo sub &&
        test_commit -C sub sub &&
        git submodule add ./sub sub &&
        git commit -a -m "add sub"
'

test_expect_success 'find a submodule' '
        cat >expect <<-EOF &&
        add sub
        EOF

        git log --format=%s --find-object=HEAD:sub >actual &&

        test_cmp expect actual
'

test_done