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-rwxr-xr-xt/t1016-compatObjectFormat.sh281
1 files changed, 281 insertions, 0 deletions
diff --git a/t/t1016-compatObjectFormat.sh b/t/t1016-compatObjectFormat.sh
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+#!/bin/sh
+#
+# Copyright (c) 2023 Eric Biederman
+#
+
+test_description='Test how well compatObjectFormat works'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-gpg.sh
+
+# All of the follow variables must be defined in the environment:
+# GIT_AUTHOR_NAME
+# GIT_AUTHOR_EMAIL
+# GIT_AUTHOR_DATE
+# GIT_COMMITTER_NAME
+# GIT_COMMITTER_EMAIL
+# GIT_COMMITTER_DATE
+#
+# The test relies on these variables being set so that the two
+# different commits in two different repositories encoded with two
+# different hash functions result in the same content in the commits.
+# This means that when the commit is translated between hash functions
+# the commit is identical to the commit in the other repository.
+
+compat_hash () {
+ case "$1" in
+ "sha1")
+ echo "sha256"
+ ;;
+ "sha256")
+ echo "sha1"
+ ;;
+ esac
+}
+
+hello_oid () {
+ case "$1" in
+ "sha1")
+ echo "$hello_sha1_oid"
+ ;;
+ "sha256")
+ echo "$hello_sha256_oid"
+ ;;
+ esac
+}
+
+tree_oid () {
+ case "$1" in
+ "sha1")
+ echo "$tree_sha1_oid"
+ ;;
+ "sha256")
+ echo "$tree_sha256_oid"
+ ;;
+ esac
+}
+
+commit_oid () {
+ case "$1" in
+ "sha1")
+ echo "$commit_sha1_oid"
+ ;;
+ "sha256")
+ echo "$commit_sha256_oid"
+ ;;
+ esac
+}
+
+commit2_oid () {
+ case "$1" in
+ "sha1")
+ echo "$commit2_sha1_oid"
+ ;;
+ "sha256")
+ echo "$commit2_sha256_oid"
+ ;;
+ esac
+}
+
+del_sigcommit () {
+ local delete="$1"
+
+ if test "$delete" = "sha256" ; then
+ local pattern="gpgsig-sha256"
+ else
+ local pattern="gpgsig"
+ fi
+ test-tool delete-gpgsig "$pattern"
+}
+
+
+del_sigtag () {
+ local storage="$1"
+ local delete="$2"
+
+ if test "$storage" = "$delete" ; then
+ local pattern="trailer"
+ elif test "$storage" = "sha256" ; then
+ local pattern="gpgsig"
+ else
+ local pattern="gpgsig-sha256"
+ fi
+ test-tool delete-gpgsig "$pattern"
+}
+
+base=$(pwd)
+for hash in sha1 sha256
+do
+ cd "$base"
+ mkdir -p repo-$hash
+ cd repo-$hash
+
+ test_expect_success "setup $hash repository" '
+ git init --object-format=$hash &&
+ git config core.repositoryformatversion 1 &&
+ git config extensions.objectformat $hash &&
+ git config extensions.compatobjectformat $(compat_hash $hash) &&
+ git config gpg.program $TEST_DIRECTORY/t1016/gpg &&
+ echo "Hellow World!" > hello &&
+ eval hello_${hash}_oid=$(git hash-object hello) &&
+ git update-index --add hello &&
+ git commit -m "Initial commit" &&
+ eval commit_${hash}_oid=$(git rev-parse HEAD) &&
+ eval tree_${hash}_oid=$(git rev-parse HEAD^{tree})
+ '
+ test_expect_success "create a $hash tagged blob" '
+ git tag --no-sign -m "This is a tag" hellotag $(hello_oid $hash) &&
+ eval hellotag_${hash}_oid=$(git rev-parse hellotag)
+ '
+ test_expect_success "create a $hash tagged tree" '
+ git tag --no-sign -m "This is a tag" treetag $(tree_oid $hash) &&
+ eval treetag_${hash}_oid=$(git rev-parse treetag)
+ '
+ test_expect_success "create a $hash tagged commit" '
+ git tag --no-sign -m "This is a tag" committag $(commit_oid $hash) &&
+ eval committag_${hash}_oid=$(git rev-parse committag)
+ '
+ test_expect_success GPG2 "create a $hash signed commit" '
+ git commit --gpg-sign --allow-empty -m "This is a signed commit" &&
+ eval signedcommit_${hash}_oid=$(git rev-parse HEAD)
+ '
+ test_expect_success GPG2 "create a $hash signed tag" '
+ git tag -s -m "This is a signed tag" signedtag HEAD &&
+ eval signedtag_${hash}_oid=$(git rev-parse signedtag)
+ '
+ test_expect_success "create a $hash branch" '
+ git checkout -b branch $(commit_oid $hash) &&
+ echo "More more more give me more!" > more &&
+ eval more_${hash}_oid=$(git hash-object more) &&
+ echo "Another and another and another" > another &&
+ eval another_${hash}_oid=$(git hash-object another) &&
+ git update-index --add more another &&
+ git commit -m "Add more files!" &&
+ eval commit2_${hash}_oid=$(git rev-parse HEAD) &&
+ eval tree2_${hash}_oid=$(git rev-parse HEAD^{tree})
+ '
+ test_expect_success GPG2 "create another $hash signed tag" '
+ git tag -s -m "This is another signed tag" signedtag2 $(commit2_oid $hash) &&
+ eval signedtag2_${hash}_oid=$(git rev-parse signedtag2)
+ '
+ test_expect_success GPG2 "merge the $hash branches together" '
+ git merge -S -m "merge some signed tags together" signedtag signedtag2 &&
+ eval signedcommit2_${hash}_oid=$(git rev-parse HEAD)
+ '
+ test_expect_success GPG2 "create additional $hash signed commits" '
+ git commit --gpg-sign --allow-empty -m "This is an additional signed commit" &&
+ git cat-file commit HEAD | del_sigcommit sha256 > "../${hash}_signedcommit3" &&
+ git cat-file commit HEAD | del_sigcommit sha1 > "../${hash}_signedcommit4" &&
+ eval signedcommit3_${hash}_oid=$(git hash-object -t commit -w ../${hash}_signedcommit3) &&
+ eval signedcommit4_${hash}_oid=$(git hash-object -t commit -w ../${hash}_signedcommit4)
+ '
+ test_expect_success GPG2 "create additional $hash signed tags" '
+ git tag -s -m "This is an additional signed tag" signedtag34 HEAD &&
+ git cat-file tag signedtag34 | del_sigtag "${hash}" sha256 > ../${hash}_signedtag3 &&
+ git cat-file tag signedtag34 | del_sigtag "${hash}" sha1 > ../${hash}_signedtag4 &&
+ eval signedtag3_${hash}_oid=$(git hash-object -t tag -w ../${hash}_signedtag3) &&
+ eval signedtag4_${hash}_oid=$(git hash-object -t tag -w ../${hash}_signedtag4)
+ '
+done
+cd "$base"
+
+compare_oids () {
+ test "$#" = 5 && { local PREREQ="$1"; shift; } || PREREQ=
+ local type="$1"
+ local name="$2"
+ local sha1_oid="$3"
+ local sha256_oid="$4"
+
+ echo ${sha1_oid} > ${name}_sha1_expected
+ echo ${sha256_oid} > ${name}_sha256_expected
+ echo ${type} > ${name}_type_expected
+
+ git --git-dir=repo-sha1/.git rev-parse --output-object-format=sha256 ${sha1_oid} > ${name}_sha1_sha256_found
+ git --git-dir=repo-sha256/.git rev-parse --output-object-format=sha1 ${sha256_oid} > ${name}_sha256_sha1_found
+ local sha1_sha256_oid="$(cat ${name}_sha1_sha256_found)"
+ local sha256_sha1_oid="$(cat ${name}_sha256_sha1_found)"
+
+ test_expect_success $PREREQ "Verify ${type} ${name}'s sha1 oid" '
+ git --git-dir=repo-sha256/.git rev-parse --output-object-format=sha1 ${sha256_oid} > ${name}_sha1 &&
+ test_cmp ${name}_sha1 ${name}_sha1_expected
+'
+
+ test_expect_success $PREREQ "Verify ${type} ${name}'s sha256 oid" '
+ git --git-dir=repo-sha1/.git rev-parse --output-object-format=sha256 ${sha1_oid} > ${name}_sha256 &&
+ test_cmp ${name}_sha256 ${name}_sha256_expected
+'
+
+ test_expect_success $PREREQ "Verify ${name}'s sha1 type" '
+ git --git-dir=repo-sha1/.git cat-file -t ${sha1_oid} > ${name}_type1 &&
+ git --git-dir=repo-sha256/.git cat-file -t ${sha256_sha1_oid} > ${name}_type2 &&
+ test_cmp ${name}_type1 ${name}_type2 &&
+ test_cmp ${name}_type1 ${name}_type_expected
+'
+
+ test_expect_success $PREREQ "Verify ${name}'s sha256 type" '
+ git --git-dir=repo-sha256/.git cat-file -t ${sha256_oid} > ${name}_type3 &&
+ git --git-dir=repo-sha1/.git cat-file -t ${sha1_sha256_oid} > ${name}_type4 &&
+ test_cmp ${name}_type3 ${name}_type4 &&
+ test_cmp ${name}_type3 ${name}_type_expected
+'
+
+ test_expect_success $PREREQ "Verify ${name}'s sha1 size" '
+ git --git-dir=repo-sha1/.git cat-file -s ${sha1_oid} > ${name}_size1 &&
+ git --git-dir=repo-sha256/.git cat-file -s ${sha256_sha1_oid} > ${name}_size2 &&
+ test_cmp ${name}_size1 ${name}_size2
+'
+
+ test_expect_success $PREREQ "Verify ${name}'s sha256 size" '
+ git --git-dir=repo-sha256/.git cat-file -s ${sha256_oid} > ${name}_size3 &&
+ git --git-dir=repo-sha1/.git cat-file -s ${sha1_sha256_oid} > ${name}_size4 &&
+ test_cmp ${name}_size3 ${name}_size4
+'
+
+ test_expect_success $PREREQ "Verify ${name}'s sha1 pretty content" '
+ git --git-dir=repo-sha1/.git cat-file -p ${sha1_oid} > ${name}_content1 &&
+ git --git-dir=repo-sha256/.git cat-file -p ${sha256_sha1_oid} > ${name}_content2 &&
+ test_cmp ${name}_content1 ${name}_content2
+'
+
+ test_expect_success $PREREQ "Verify ${name}'s sha256 pretty content" '
+ git --git-dir=repo-sha256/.git cat-file -p ${sha256_oid} > ${name}_content3 &&
+ git --git-dir=repo-sha1/.git cat-file -p ${sha1_sha256_oid} > ${name}_content4 &&
+ test_cmp ${name}_content3 ${name}_content4
+'
+
+ test_expect_success $PREREQ "Verify ${name}'s sha1 content" '
+ git --git-dir=repo-sha1/.git cat-file ${type} ${sha1_oid} > ${name}_content5 &&
+ git --git-dir=repo-sha256/.git cat-file ${type} ${sha256_sha1_oid} > ${name}_content6 &&
+ test_cmp ${name}_content5 ${name}_content6
+'
+
+ test_expect_success $PREREQ "Verify ${name}'s sha256 content" '
+ git --git-dir=repo-sha256/.git cat-file ${type} ${sha256_oid} > ${name}_content7 &&
+ git --git-dir=repo-sha1/.git cat-file ${type} ${sha1_sha256_oid} > ${name}_content8 &&
+ test_cmp ${name}_content7 ${name}_content8
+'
+
+}
+
+compare_oids 'blob' hello "$hello_sha1_oid" "$hello_sha256_oid"
+compare_oids 'tree' tree "$tree_sha1_oid" "$tree_sha256_oid"
+compare_oids 'commit' commit "$commit_sha1_oid" "$commit_sha256_oid"
+compare_oids GPG2 'commit' signedcommit "$signedcommit_sha1_oid" "$signedcommit_sha256_oid"
+compare_oids 'tag' hellotag "$hellotag_sha1_oid" "$hellotag_sha256_oid"
+compare_oids 'tag' treetag "$treetag_sha1_oid" "$treetag_sha256_oid"
+compare_oids 'tag' committag "$committag_sha1_oid" "$committag_sha256_oid"
+compare_oids GPG2 'tag' signedtag "$signedtag_sha1_oid" "$signedtag_sha256_oid"
+
+compare_oids 'blob' more "$more_sha1_oid" "$more_sha256_oid"
+compare_oids 'blob' another "$another_sha1_oid" "$another_sha256_oid"
+compare_oids 'tree' tree2 "$tree2_sha1_oid" "$tree2_sha256_oid"
+compare_oids 'commit' commit2 "$commit2_sha1_oid" "$commit2_sha256_oid"
+compare_oids GPG2 'tag' signedtag2 "$signedtag2_sha1_oid" "$signedtag2_sha256_oid"
+compare_oids GPG2 'commit' signedcommit2 "$signedcommit2_sha1_oid" "$signedcommit2_sha256_oid"
+compare_oids GPG2 'commit' signedcommit3 "$signedcommit3_sha1_oid" "$signedcommit3_sha256_oid"
+compare_oids GPG2 'commit' signedcommit4 "$signedcommit4_sha1_oid" "$signedcommit4_sha256_oid"
+compare_oids GPG2 'tag' signedtag3 "$signedtag3_sha1_oid" "$signedtag3_sha256_oid"
+compare_oids GPG2 'tag' signedtag4 "$signedtag4_sha1_oid" "$signedtag4_sha256_oid"
+
+test_done