diff options
Diffstat (limited to 't/t5537-fetch-shallow.sh')
| -rwxr-xr-x | t/t5537-fetch-shallow.sh | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/t/t5537-fetch-shallow.sh b/t/t5537-fetch-shallow.sh new file mode 100755 index 0000000..37f7547 --- /dev/null +++ b/t/t5537-fetch-shallow.sh @@ -0,0 +1,299 @@ +#!/bin/sh + +test_description='fetch/clone from a shallow clone' + +GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main +export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME + +. ./test-lib.sh + +commit() { + echo "$1" >tracked && + git add tracked && + git commit -m "$1" +} + +test_expect_success 'setup' ' + commit 1 && + commit 2 && + commit 3 && + commit 4 && + git config --global transfer.fsckObjects true && + test_oid_cache <<-\EOF + perl sha1:s/0034shallow %s/0036unshallow %s/ + perl sha256:s/004cshallow %s/004eunshallow %s/ + EOF +' + +test_expect_success 'setup shallow clone' ' + git clone --no-local --depth=2 .git shallow && + git --git-dir=shallow/.git log --format=%s >actual && + test_write_lines 4 3 >expect && + test_cmp expect actual +' + +test_expect_success 'clone from shallow clone' ' + git clone --no-local shallow shallow2 && + ( + cd shallow2 && + git fsck && + git log --format=%s >actual && + test_write_lines 4 3 >expect && + test_cmp expect actual + ) +' + +test_expect_success 'fetch from shallow clone' ' + ( + cd shallow && + commit 5 + ) && + ( + cd shallow2 && + git fetch && + git fsck && + git log --format=%s origin/main >actual && + test_write_lines 5 4 3 >expect && + test_cmp expect actual + ) +' + +test_expect_success 'fetch --depth from shallow clone' ' + ( + cd shallow && + commit 6 + ) && + ( + cd shallow2 && + git fetch --depth=2 && + git fsck && + git log --format=%s origin/main >actual && + test_write_lines 6 5 >expect && + test_cmp expect actual + ) +' + +test_expect_success 'fetch --unshallow from shallow clone' ' + ( + cd shallow2 && + git fetch --unshallow && + git fsck && + git log --format=%s origin/main >actual && + test_write_lines 6 5 4 3 >expect && + test_cmp expect actual + ) +' + +test_expect_success 'fetch --unshallow from a full clone' ' + git clone --no-local --depth=2 .git shallow3 && + ( + cd shallow3 && + git log --format=%s >actual && + test_write_lines 4 3 >expect && + test_cmp expect actual && + git -c fetch.writeCommitGraph fetch --unshallow && + git log origin/main --format=%s >actual && + test_write_lines 4 3 2 1 >expect && + test_cmp expect actual + ) +' + +test_expect_success 'fetch something upstream has but hidden by clients shallow boundaries' ' + # the blob "1" is available in .git but hidden by the + # shallow2/.git/shallow and it should be resent + ! git --git-dir=shallow2/.git cat-file blob $(echo 1|git hash-object --stdin) >/dev/null && + echo 1 >1.t && + git add 1.t && + git commit -m add-1-back && + ( + cd shallow2 && + git fetch ../.git +refs/heads/main:refs/remotes/top/main && + git fsck && + git log --format=%s top/main >actual && + test_write_lines add-1-back 4 3 >expect && + test_cmp expect actual + ) && + git --git-dir=shallow2/.git cat-file blob $(echo 1|git hash-object --stdin) >/dev/null +' + +test_expect_success 'fetch that requires changes in .git/shallow is filtered' ' + ( + cd shallow && + git checkout --orphan no-shallow && + commit no-shallow + ) && + git init notshallow && + ( + cd notshallow && + git fetch ../shallow/.git refs/heads/*:refs/remotes/shallow/* && + git for-each-ref --format="%(refname)" >actual.refs && + echo refs/remotes/shallow/no-shallow >expect.refs && + test_cmp expect.refs actual.refs && + git log --format=%s shallow/no-shallow >actual && + echo no-shallow >expect && + test_cmp expect actual + ) +' + +test_expect_success 'fetch --update-shallow' ' + ( + cd shallow && + git checkout main && + commit 7 && + git tag -m foo heavy-tag HEAD^ && + git tag light-tag HEAD^:tracked + ) && + ( + cd notshallow && + git fetch --update-shallow ../shallow/.git refs/heads/*:refs/remotes/shallow/* && + git fsck && + git for-each-ref --sort=refname --format="%(refname)" >actual.refs && + cat <<-\EOF >expect.refs && + refs/remotes/shallow/main + refs/remotes/shallow/no-shallow + refs/tags/heavy-tag + refs/tags/light-tag + EOF + test_cmp expect.refs actual.refs && + git log --format=%s shallow/main >actual && + test_write_lines 7 6 5 4 3 >expect && + test_cmp expect actual + ) +' + +test_expect_success 'fetch --update-shallow into a repo with submodules' ' + test_config_global protocol.file.allow always && + + git init a-submodule && + test_commit -C a-submodule foo && + + test_when_finished "rm -rf repo-with-sub" && + git init repo-with-sub && + git -C repo-with-sub submodule add ../a-submodule a-submodule && + git -C repo-with-sub commit -m "added submodule" && + git -C repo-with-sub fetch --update-shallow ../shallow/.git refs/heads/*:refs/remotes/shallow/* +' + +test_expect_success 'fetch --update-shallow a commit that is also a shallow point into a repo with submodules' ' + test_when_finished "rm -rf repo-with-sub" && + git init repo-with-sub && + git -c protocol.file.allow=always -C repo-with-sub \ + submodule add ../a-submodule a-submodule && + git -C repo-with-sub commit -m "added submodule" && + + SHALLOW=$(cat shallow/.git/shallow) && + git -C repo-with-sub fetch --update-shallow ../shallow/.git "$SHALLOW":refs/heads/a-shallow +' + +test_expect_success 'fetch --update-shallow (with fetch.writeCommitGraph)' ' + ( + cd shallow && + git checkout main && + commit 8 && + git tag -m foo heavy-tag-for-graph HEAD^ && + git tag light-tag-for-graph HEAD^:tracked + ) && + test_config -C notshallow fetch.writeCommitGraph true && + ( + cd notshallow && + git fetch --update-shallow ../shallow/.git refs/heads/*:refs/remotes/shallow/* && + git fsck && + git for-each-ref --sort=refname --format="%(refname)" >actual.refs && + cat <<-EOF >expect.refs && + refs/remotes/shallow/main + refs/remotes/shallow/no-shallow + refs/tags/heavy-tag + refs/tags/heavy-tag-for-graph + refs/tags/light-tag + refs/tags/light-tag-for-graph + EOF + test_cmp expect.refs actual.refs && + git log --format=%s shallow/main >actual && + test_write_lines 8 7 6 5 4 3 >expect && + test_cmp expect actual + ) +' + +test_expect_success POSIXPERM,SANITY 'shallow fetch from a read-only repo' ' + cp -R .git read-only.git && + test_when_finished "find read-only.git -type d -print | xargs chmod +w" && + find read-only.git -print | xargs chmod -w && + git clone --no-local --depth=2 read-only.git from-read-only && + git --git-dir=from-read-only/.git log --format=%s >actual && + test_write_lines add-1-back 4 >expect && + test_cmp expect actual +' + +test_expect_success '.git/shallow is edited by repack' ' + git init shallow-server && + test_commit -C shallow-server A && + test_commit -C shallow-server B && + git -C shallow-server checkout -b branch && + test_commit -C shallow-server C && + test_commit -C shallow-server E && + test_commit -C shallow-server D && + d="$(git -C shallow-server rev-parse --verify D^0)" && + git -C shallow-server checkout main && + + git clone --depth=1 --no-tags --no-single-branch \ + "file://$PWD/shallow-server" shallow-client && + + : now remove the branch and fetch with prune && + git -C shallow-server branch -D branch && + git -C shallow-client fetch --prune --depth=1 \ + origin "+refs/heads/*:refs/remotes/origin/*" && + git -C shallow-client repack -adfl && + test_must_fail git -C shallow-client rev-parse --verify $d^0 && + ! grep $d shallow-client/.git/shallow && + + git -C shallow-server branch branch-orig $d && + git -C shallow-client fetch --prune --depth=2 \ + origin "+refs/heads/*:refs/remotes/origin/*" +' + +. "$TEST_DIRECTORY"/lib-httpd.sh +start_httpd + +REPO="$HTTPD_DOCUMENT_ROOT_PATH/repo" + +test_expect_success 'shallow fetches check connectivity before writing shallow file' ' + rm -rf "$REPO" client && + + git init "$REPO" && + test_commit -C "$REPO" one && + test_commit -C "$REPO" two && + test_commit -C "$REPO" three && + + git init client && + + # Use protocol v2 to ensure that shallow information is sent exactly + # once by the server, since we are planning to manipulate it. + git -C "$REPO" config protocol.version 2 && + git -C client config protocol.version 2 && + + git -C client fetch --depth=2 "$HTTPD_URL/one_time_perl/repo" main:a_branch && + + # Craft a situation in which the server sends back an unshallow request + # with an empty packfile. This is done by refetching with a shorter + # depth (to ensure that the packfile is empty), and overwriting the + # shallow line in the response with the unshallow line we want. + printf "$(test_oid perl)" \ + "$(git -C "$REPO" rev-parse HEAD)" \ + "$(git -C "$REPO" rev-parse HEAD^)" \ + >"$HTTPD_ROOT_PATH/one-time-perl" && + test_must_fail env GIT_TEST_SIDEBAND_ALL=0 git -C client \ + fetch --depth=1 "$HTTPD_URL/one_time_perl/repo" \ + main:a_branch && + + # Ensure that the one-time-perl script was used. + ! test -e "$HTTPD_ROOT_PATH/one-time-perl" && + + # Ensure that the resulting repo is consistent, despite our failure to + # fetch. + git -C client fsck +' + +# DO NOT add non-httpd-specific tests here, because the last part of this +# test script is only executed when httpd is available and enabled. + +test_done |