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#!/bin/sh
test_description='various tests of reflog walk (log -g) behavior'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./test-lib.sh
test_expect_success 'set up some reflog entries' '
test_commit one &&
test_commit two &&
git checkout -b side HEAD^ &&
test_commit three &&
git merge --no-commit main &&
echo evil-merge-content >>one.t &&
test_tick &&
git commit --no-edit -a
'
do_walk () {
git log -g --format="%gd %gs" "$@"
}
test_expect_success 'set up expected reflog' '
cat >expect.all <<-EOF
HEAD@{0} commit (merge): Merge branch ${SQ}main${SQ} into side
HEAD@{1} commit: three
HEAD@{2} checkout: moving from main to side
HEAD@{3} commit: two
HEAD@{4} commit (initial): one
EOF
'
test_expect_success 'reflog walk shows expected logs' '
do_walk >actual &&
test_cmp expect.all actual
'
test_expect_success 'reflog can limit with --no-merges' '
grep -v merge expect.all >expect &&
do_walk --no-merges >actual &&
test_cmp expect actual
'
test_expect_success 'reflog can limit with pathspecs' '
grep two expect.all >expect &&
do_walk -- two.t >actual &&
test_cmp expect actual
'
test_expect_success 'pathspec limiting handles merges' '
# we pick up:
# - the initial commit of one
# - the checkout back to commit one
# - the evil merge which touched one
sed -n "1p;3p;5p" expect.all >expect &&
do_walk -- one.t >actual &&
test_cmp expect actual
'
test_expect_success '--parents shows true parents' '
# convert newlines to spaces
echo $(git rev-parse HEAD HEAD^1 HEAD^2) >expect &&
git rev-list -g --parents -1 HEAD >actual &&
test_cmp expect actual
'
test_expect_success 'walking multiple reflogs shows all' '
# We expect to see all entries for all reflogs, but interleaved by
# date, with order on the command line breaking ties. We
# can use "sort" on the separate lists to generate this,
# but note two tricks:
#
# 1. We use "{" as the delimiter, which lets us skip to the reflog
# date specifier as our second field, and then our "-n" numeric
# sort ignores the bits after the timestamp.
#
# 2. POSIX leaves undefined whether this is a stable sort or not. So
# we use "-k 1" to ensure that we see HEAD before main before
# side when breaking ties.
{
do_walk --date=unix HEAD &&
do_walk --date=unix side &&
do_walk --date=unix main
} >expect.raw &&
sort -t "{" -k 2nr -k 1 <expect.raw >expect &&
do_walk --date=unix HEAD main side >actual &&
test_cmp expect actual
'
test_expect_success 'date-limiting does not interfere with other logs' '
do_walk HEAD@{1979-01-01} HEAD >actual &&
test_cmp expect.all actual
'
test_expect_success 'min/max age uses entry date to limit' '
# Flip between commits one and two so each ref update actually
# does something (and does not get optimized out). We know
# that the timestamps of those commits will be before our "min".
git update-ref -m before refs/heads/minmax one &&
test_tick &&
min=$test_tick &&
git update-ref -m min refs/heads/minmax two &&
test_tick &&
max=$test_tick &&
git update-ref -m max refs/heads/minmax one &&
test_tick &&
git update-ref -m after refs/heads/minmax two &&
cat >expect <<-\EOF &&
max
min
EOF
git log -g --since=$min --until=$max --format=%gs minmax >actual &&
test_cmp expect actual
'
# Create a situation where the reflog and ref database disagree about the latest
# state of HEAD.
test_expect_success 'walk prefers reflog to ref tip' '
test_commit A &&
test_commit B &&
git reflog delete HEAD@{0} &&
head=$(git rev-parse HEAD) &&
git rev-parse A >expect &&
git log -g --format=%H -1 >actual &&
test_cmp expect actual
'
test_expect_success 'rev-list -g complains when there are no reflogs' '
test_must_fail git rev-list -g
'
test_done
|
