mirror of
https://github.com/git/git.git
synced 2024-11-23 18:05:29 +08:00
160 lines
4.3 KiB
Bash
Executable File
160 lines
4.3 KiB
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# Copyright (c) 2005 Junio C Hamano
|
|
#
|
|
|
|
test_description='Merge base computation.
|
|
'
|
|
|
|
. ./test-lib.sh
|
|
|
|
T=$(git write-tree)
|
|
|
|
M=1130000000
|
|
Z=+0000
|
|
|
|
GIT_COMMITTER_EMAIL=git@comm.iter.xz
|
|
GIT_COMMITTER_NAME='C O Mmiter'
|
|
GIT_AUTHOR_NAME='A U Thor'
|
|
GIT_AUTHOR_EMAIL=git@au.thor.xz
|
|
export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
|
|
|
|
doit() {
|
|
OFFSET=$1; shift
|
|
NAME=$1; shift
|
|
PARENTS=
|
|
for P
|
|
do
|
|
PARENTS="${PARENTS}-p $P "
|
|
done
|
|
GIT_COMMITTER_DATE="$(($M + $OFFSET)) $Z"
|
|
GIT_AUTHOR_DATE=$GIT_COMMITTER_DATE
|
|
export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
|
|
commit=$(echo $NAME | git commit-tree $T $PARENTS)
|
|
echo $commit >.git/refs/tags/$NAME
|
|
echo $commit
|
|
}
|
|
|
|
# E---D---C---B---A
|
|
# \'-_ \ \
|
|
# \ `---------G \
|
|
# \ \
|
|
# F----------------H
|
|
|
|
# Setup...
|
|
E=$(doit 5 E)
|
|
D=$(doit 4 D $E)
|
|
F=$(doit 6 F $E)
|
|
C=$(doit 3 C $D)
|
|
B=$(doit 2 B $C)
|
|
A=$(doit 1 A $B)
|
|
G=$(doit 7 G $B $E)
|
|
H=$(doit 8 H $A $F)
|
|
|
|
test_expect_success 'compute merge-base (single)' \
|
|
'MB=$(git merge-base G H) &&
|
|
expr "$(git name-rev "$MB")" : "[0-9a-f]* tags/B"'
|
|
|
|
test_expect_success 'compute merge-base (all)' \
|
|
'MB=$(git merge-base --all G H) &&
|
|
expr "$(git name-rev "$MB")" : "[0-9a-f]* tags/B"'
|
|
|
|
test_expect_success 'compute merge-base with show-branch' \
|
|
'MB=$(git show-branch --merge-base G H) &&
|
|
expr "$(git name-rev "$MB")" : "[0-9a-f]* tags/B"'
|
|
|
|
# Setup for second test to demonstrate that relying on timestamps in a
|
|
# distributed SCM to provide a _consistent_ partial ordering of commits
|
|
# leads to insanity.
|
|
#
|
|
# Relative
|
|
# Structure timestamps
|
|
#
|
|
# PL PR +4 +4
|
|
# / \/ \ / \/ \
|
|
# L2 C2 R2 +3 -1 +3
|
|
# | | | | | |
|
|
# L1 C1 R1 +2 -2 +2
|
|
# | | | | | |
|
|
# L0 C0 R0 +1 -3 +1
|
|
# \ | / \ | /
|
|
# S 0
|
|
#
|
|
# The left and right chains of commits can be of any length and complexity as
|
|
# long as all of the timestamps are greater than that of S.
|
|
|
|
S=$(doit 0 S)
|
|
|
|
C0=$(doit -3 C0 $S)
|
|
C1=$(doit -2 C1 $C0)
|
|
C2=$(doit -1 C2 $C1)
|
|
|
|
L0=$(doit 1 L0 $S)
|
|
L1=$(doit 2 L1 $L0)
|
|
L2=$(doit 3 L2 $L1)
|
|
|
|
R0=$(doit 1 R0 $S)
|
|
R1=$(doit 2 R1 $R0)
|
|
R2=$(doit 3 R2 $R1)
|
|
|
|
PL=$(doit 4 PL $L2 $C2)
|
|
PR=$(doit 4 PR $C2 $R2)
|
|
|
|
test_expect_success 'compute merge-base (single)' \
|
|
'MB=$(git merge-base PL PR) &&
|
|
expr "$(git name-rev "$MB")" : "[0-9a-f]* tags/C2"'
|
|
|
|
test_expect_success 'compute merge-base (all)' \
|
|
'MB=$(git merge-base --all PL PR) &&
|
|
expr "$(git name-rev "$MB")" : "[0-9a-f]* tags/C2"'
|
|
|
|
# Another set to demonstrate base between one commit and a merge
|
|
# in the documentation.
|
|
|
|
test_expect_success 'merge-base for octopus-step (setup)' '
|
|
test_tick && git commit --allow-empty -m root && git tag MMR &&
|
|
test_tick && git commit --allow-empty -m 1 && git tag MM1 &&
|
|
test_tick && git commit --allow-empty -m o &&
|
|
test_tick && git commit --allow-empty -m o &&
|
|
test_tick && git commit --allow-empty -m o &&
|
|
test_tick && git commit --allow-empty -m A && git tag MMA &&
|
|
git checkout MM1 &&
|
|
test_tick && git commit --allow-empty -m o &&
|
|
test_tick && git commit --allow-empty -m o &&
|
|
test_tick && git commit --allow-empty -m o &&
|
|
test_tick && git commit --allow-empty -m B && git tag MMB &&
|
|
git checkout MMR &&
|
|
test_tick && git commit --allow-empty -m o &&
|
|
test_tick && git commit --allow-empty -m o &&
|
|
test_tick && git commit --allow-empty -m o &&
|
|
test_tick && git commit --allow-empty -m o &&
|
|
test_tick && git commit --allow-empty -m C && git tag MMC
|
|
'
|
|
|
|
test_expect_success 'merge-base A B C' '
|
|
MB=$(git merge-base --all MMA MMB MMC) &&
|
|
MM1=$(git rev-parse --verify MM1) &&
|
|
test "$MM1" = "$MB"
|
|
'
|
|
|
|
test_expect_success 'criss-cross merge-base for octopus-step (setup)' '
|
|
git reset --hard MMR &&
|
|
test_tick && git commit --allow-empty -m 1 && git tag CC1 &&
|
|
git reset --hard E &&
|
|
test_tick && git commit --allow-empty -m 2 && git tag CC2 &&
|
|
test_tick && git merge -s ours CC1 &&
|
|
test_tick && git commit --allow-empty -m o &&
|
|
test_tick && git commit --allow-empty -m B && git tag CCB &&
|
|
git reset --hard CC1 &&
|
|
test_tick && git merge -s ours CC2 &&
|
|
test_tick && git commit --allow-empty -m A && git tag CCA
|
|
'
|
|
|
|
test_expect_success 'merge-base B A^^ A^^2' '
|
|
MB0=$(git merge-base --all CCB CCA^^ CCA^^2 | sort) &&
|
|
MB1=$(git rev-parse CC1 CC2 | sort) &&
|
|
test "$MB0" = "$MB1"
|
|
'
|
|
|
|
test_done
|