git-commit-vandalism/t/t1309-early-config.sh
Johannes Schindelin f1beaaefaa t1309: use a neutral branch name in the onbranch test cases
The `onbranch` test cases touched by this patch do not actually try to
include any other config. Their purpose is to avoid regressing on two
bugs in the `include.onbranch:<name>.path` code that we fixed in the
past, bugs that are actually unrelated to any concrete branch name.

The first bug was fixed in 85fe0e800c (config: work around bug with
includeif:onbranch and early config, 2019-07-31). Essentially, when
reading early config, there would be a catch-22 trying to access the
refs, and therefore we simply cannot evaluate the condition at that
point. The test case ensures that we avoid emitting this bogus message:

	BUG: refs.c:1851: attempting to get main_ref_store outside of repository

The second test case concerns the non-Git scenario, where we simply do
not have a current branch to begin with (because we don't have a
repository in the first place), and the test case was introduced in
22932d9169 (config: stop checking whether the_repository is NULL,
2019-08-06) to ensure that we don't cause a segmentation fault should
the code still incorrectly try to look at any ref.

In short, neither of these two test cases will ever look at a current
branch name, even in case of regressions. Therefore, the actual branch
name does not matter at all. We can therefore easily avoid
racially-charged branch names here, and that's what this patch does.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-19 11:41:06 -08:00

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#!/bin/sh
test_description='Test read_early_config()'
. ./test-lib.sh
test_expect_success 'read early config' '
test_config early.config correct &&
test-tool config read_early_config early.config >output &&
test correct = "$(cat output)"
'
test_expect_success 'in a sub-directory' '
test_config early.config sub &&
mkdir -p sub &&
(
cd sub &&
test-tool config read_early_config early.config
) >output &&
test sub = "$(cat output)"
'
test_expect_success 'ceiling' '
test_config early.config ceiling &&
mkdir -p sub &&
(
GIT_CEILING_DIRECTORIES="$PWD" &&
export GIT_CEILING_DIRECTORIES &&
cd sub &&
test-tool config read_early_config early.config
) >output &&
test_must_be_empty output
'
test_expect_success 'ceiling #2' '
mkdir -p xdg/git &&
git config -f xdg/git/config early.config xdg &&
test_config early.config ceiling &&
mkdir -p sub &&
(
XDG_CONFIG_HOME="$PWD"/xdg &&
GIT_CEILING_DIRECTORIES="$PWD" &&
export GIT_CEILING_DIRECTORIES XDG_CONFIG_HOME &&
cd sub &&
test-tool config read_early_config early.config
) >output &&
test xdg = "$(cat output)"
'
cmdline_config="'test.source=cmdline'"
test_expect_success 'read config file in right order' '
echo "[test]source = home" >>.gitconfig &&
git init foo &&
(
cd foo &&
echo "[test]source = repo" >>.git/config &&
GIT_CONFIG_PARAMETERS=$cmdline_config test-tool config \
read_early_config test.source >actual &&
cat >expected <<-\EOF &&
home
repo
cmdline
EOF
test_cmp expected actual
)
'
test_with_config () {
rm -rf throwaway &&
git init throwaway &&
(
cd throwaway &&
echo "$*" >.git/config &&
test-tool config read_early_config early.config
)
}
test_expect_success 'ignore .git/ with incompatible repository version' '
test_with_config "[core]repositoryformatversion = 999999" 2>err &&
test_i18ngrep "warning:.* Expected git repo version <= [1-9]" err
'
test_expect_failure 'ignore .git/ with invalid repository version' '
test_with_config "[core]repositoryformatversion = invalid"
'
test_expect_failure 'ignore .git/ with invalid config' '
test_with_config "["
'
test_expect_success 'early config and onbranch' '
echo "[broken" >broken &&
test_with_config "[includeif \"onbranch:topic\"]path=../broken"
'
test_expect_success 'onbranch config outside of git repo' '
test_config_global includeIf.onbranch:topic.path non-existent &&
nongit git help
'
test_done