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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:47:53 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:47:53 +0000
commitc8bae7493d2f2910b57f13ded012e86bdcfb0532 (patch)
tree24e09d9f84dec336720cf393e156089ca2835791 /t/t5537-fetch-shallow.sh
parentInitial commit. (diff)
downloadgit-17a789943131483bc454986d1be6da6caaabce8c.tar.xz
git-17a789943131483bc454986d1be6da6caaabce8c.zip
Adding upstream version 1:2.39.2.upstream/1%2.39.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 't/t5537-fetch-shallow.sh')
-rwxr-xr-xt/t5537-fetch-shallow.sh299
1 files changed, 299 insertions, 0 deletions
diff --git a/t/t5537-fetch-shallow.sh b/t/t5537-fetch-shallow.sh
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@@ -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