mirror of
https://github.com/git/git
synced 2024-10-30 04:01:21 +00:00
e35f202b45
safe.bareRepository=explicit is a safer default mode of operation, since it guards against the embedded bare repository attack [1]. Most end users don't use bare repositories directly, so they should be able to set safe.bareRepository=explicit, with the expectation that they can reenable bare repositories by specifying GIT_DIR or --git-dir. However, the user might use a tool that invokes Git on bare repositories without setting GIT_DIR (e.g. "go mod" will clone bare repositories [2]), so even if a user wanted to use safe.bareRepository=explicit, it wouldn't be feasible until their tools learned to set GIT_DIR. To make this transition easier, add a trace message to note when we attempt to set up a bare repository without setting GIT_DIR. This allows users and tool developers to audit which of their tools are problematic and report/fix the issue. When they are sufficiently confident, they would switch over to "safe.bareRepository=explicit". Note that this uses trace2_data_string(), which isn't supported by the "normal" GIT_TRACE2 target, only _EVENT or _PERF. [1] https://lore.kernel.org/git/kl6lsfqpygsj.fsf@chooglen-macbookpro.roam.corp.google.com/ [2] https://go.dev/ref/mod Signed-off-by: Glen Choo <chooglen@google.com> Signed-off-by: Josh Steadmon <steadmon@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
81 lines
2.4 KiB
Bash
Executable file
81 lines
2.4 KiB
Bash
Executable file
#!/bin/sh
|
|
|
|
test_description='verify safe.bareRepository checks'
|
|
|
|
TEST_PASSES_SANITIZE_LEAK=true
|
|
. ./test-lib.sh
|
|
|
|
pwd="$(pwd)"
|
|
|
|
expect_accepted_implicit () {
|
|
test_when_finished 'rm "$pwd/trace.perf"' &&
|
|
GIT_TRACE2_PERF="$pwd/trace.perf" git "$@" rev-parse --git-dir &&
|
|
# Note: we're intentionally only checking that the bare repo has a
|
|
# directory *prefix* of $pwd
|
|
grep -F "implicit-bare-repository:$pwd" "$pwd/trace.perf"
|
|
}
|
|
|
|
expect_accepted_explicit () {
|
|
test_when_finished 'rm "$pwd/trace.perf"' &&
|
|
GIT_DIR="$1" GIT_TRACE2_PERF="$pwd/trace.perf" git rev-parse --git-dir &&
|
|
! grep -F "implicit-bare-repository:$pwd" "$pwd/trace.perf"
|
|
}
|
|
|
|
expect_rejected () {
|
|
test_when_finished 'rm "$pwd/trace.perf"' &&
|
|
test_env GIT_TRACE2_PERF="$pwd/trace.perf" \
|
|
test_must_fail git "$@" rev-parse --git-dir 2>err &&
|
|
grep -F "cannot use bare repository" err &&
|
|
grep -F "implicit-bare-repository:$pwd" "$pwd/trace.perf"
|
|
}
|
|
|
|
test_expect_success 'setup bare repo in worktree' '
|
|
git init outer-repo &&
|
|
git init --bare outer-repo/bare-repo
|
|
'
|
|
|
|
test_expect_success 'safe.bareRepository unset' '
|
|
test_unconfig --global safe.bareRepository &&
|
|
expect_accepted_implicit -C outer-repo/bare-repo
|
|
'
|
|
|
|
test_expect_success 'safe.bareRepository=all' '
|
|
test_config_global safe.bareRepository all &&
|
|
expect_accepted_implicit -C outer-repo/bare-repo
|
|
'
|
|
|
|
test_expect_success 'safe.bareRepository=explicit' '
|
|
test_config_global safe.bareRepository explicit &&
|
|
expect_rejected -C outer-repo/bare-repo
|
|
'
|
|
|
|
test_expect_success 'safe.bareRepository in the repository' '
|
|
# safe.bareRepository must not be "explicit", otherwise
|
|
# git config fails with "fatal: not in a git directory" (like
|
|
# safe.directory)
|
|
test_config -C outer-repo/bare-repo safe.bareRepository \
|
|
all &&
|
|
test_config_global safe.bareRepository explicit &&
|
|
expect_rejected -C outer-repo/bare-repo
|
|
'
|
|
|
|
test_expect_success 'safe.bareRepository on the command line' '
|
|
test_config_global safe.bareRepository explicit &&
|
|
expect_accepted_implicit -C outer-repo/bare-repo \
|
|
-c safe.bareRepository=all
|
|
'
|
|
|
|
test_expect_success 'safe.bareRepository in included file' '
|
|
cat >gitconfig-include <<-\EOF &&
|
|
[safe]
|
|
bareRepository = explicit
|
|
EOF
|
|
git config --global --add include.path "$(pwd)/gitconfig-include" &&
|
|
expect_rejected -C outer-repo/bare-repo
|
|
'
|
|
|
|
test_expect_success 'no trace when GIT_DIR is explicitly provided' '
|
|
expect_accepted_explicit "$pwd/outer-repo/bare-repo"
|
|
'
|
|
|
|
test_done
|