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git/t/t6019-rev-list-ancestry-path.sh
Kevin Bracey a765499a08 revision.c: treat A...B merge bases as if manually specified
The documentation assures users that "A...B" is defined as "A B --not
$(git merge-base --all A B)". This wasn't in fact quite true, because
the calculated merge bases were not sent to add_rev_cmdline().

The main effect of this was that although

  git rev-list --ancestry-path A B --not $(git merge-base --all A B)

worked, the simpler form

  git rev-list --ancestry-path A...B

failed with a "no bottom commits" error.

Other potential users of bottom commits could also be affected by this
problem, if they examine revs->cmdline_info; I came across the issue in
my proposed history traversal refinements series.

So ensure that the calculated merge bases are sent to add_rev_cmdline(),
flagged with new 'whence' enum value REV_CMD_MERGE_BASE.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:45:34 -07:00

130 lines
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#!/bin/sh
test_description='--ancestry-path'
# D---E-------F
# / \ \
# B---C---G---H---I---J
# / \
# A-------K---------------L--M
#
# D..M == E F G H I J K L M
# --ancestry-path D..M == E F H I J L M
#
# D..M -- M.t == M
# --ancestry-path D..M -- M.t == M
#
# F...I == F G H I
# --ancestry-path F...I == F H I
. ./test-lib.sh
test_merge () {
test_tick &&
git merge -s ours -m "$2" "$1" &&
git tag "$2"
}
test_expect_success setup '
test_commit A &&
test_commit B &&
test_commit C &&
test_commit D &&
test_commit E &&
test_commit F &&
git reset --hard C &&
test_commit G &&
test_merge E H &&
test_commit I &&
test_merge F J &&
git reset --hard A &&
test_commit K &&
test_merge J L &&
test_commit M
'
test_expect_success 'rev-list D..M' '
for c in E F G H I J K L M; do echo $c; done >expect &&
git rev-list --format=%s D..M |
sed -e "/^commit /d" |
sort >actual &&
test_cmp expect actual
'
test_expect_success 'rev-list --ancestry-path D..M' '
for c in E F H I J L M; do echo $c; done >expect &&
git rev-list --ancestry-path --format=%s D..M |
sed -e "/^commit /d" |
sort >actual &&
test_cmp expect actual
'
test_expect_success 'rev-list D..M -- M.t' '
echo M >expect &&
git rev-list --format=%s D..M -- M.t |
sed -e "/^commit /d" >actual &&
test_cmp expect actual
'
test_expect_success 'rev-list --ancestry-path D..M -- M.t' '
echo M >expect &&
git rev-list --ancestry-path --format=%s D..M -- M.t |
sed -e "/^commit /d" >actual &&
test_cmp expect actual
'
test_expect_success 'rev-list F...I' '
for c in F G H I; do echo $c; done >expect &&
git rev-list --format=%s F...I |
sed -e "/^commit /d" |
sort >actual &&
test_cmp expect actual
'
test_expect_success 'rev-list --ancestry-path F...I' '
for c in F H I; do echo $c; done >expect &&
git rev-list --ancestry-path --format=%s F...I |
sed -e "/^commit /d" |
sort >actual &&
test_cmp expect actual
'
# b---bc
# / \ /
# a X
# \ / \
# c---cb
#
# All refnames prefixed with 'x' to avoid confusion with the tags
# generated by test_commit on case-insensitive systems.
test_expect_success 'setup criss-cross' '
mkdir criss-cross &&
(cd criss-cross &&
git init &&
test_commit A &&
git checkout -b xb master &&
test_commit B &&
git checkout -b xc master &&
test_commit C &&
git checkout -b xbc xb -- &&
git merge xc &&
git checkout -b xcb xc -- &&
git merge xb &&
git checkout master)
'
# no commits in bc descend from cb
test_expect_success 'criss-cross: rev-list --ancestry-path cb..bc' '
(cd criss-cross &&
git rev-list --ancestry-path xcb..xbc > actual &&
test -z "$(cat actual)")
'
# no commits in repository descend from cb
test_expect_success 'criss-cross: rev-list --ancestry-path --all ^cb' '
(cd criss-cross &&
git rev-list --ancestry-path --all ^xcb > actual &&
test -z "$(cat actual)")
'
test_done