[thirdparty/git.git] / t / t6111-rev-list-treesame.sh

#!/bin/sh
#
#        ,---E--.   *H----------.             * marks !TREESAME parent paths
#       /        \ /             \*
# *A--*B---D--*F-*G---------K-*L-*M
#   \     /*       \       /
#    `-C-'          `-*I-*J
#
# A creates "file", B and F change it.
# Odd merge G takes the old version from B.
# I changes it, but J reverts it, so K is TREESAME to both parents.
# H and L both change "file", and M merges those changes.

test_description='TREESAME and limiting'

. ./test-lib.sh

note () {
	git tag "$1"
}

unnote () {
	git name-rev --tags --stdin | sed -e "s|$_x40 (tags/\([^)]*\))\([ 	]\)|\1\2|g"
}

test_expect_success setup '
	test_commit "Initial file" file "Hi there" A &&
	git branch other-branch &&

	test_commit "file=Hello" file "Hello" B &&
	git branch third-branch &&

	git checkout other-branch &&
	test_commit "Added other" other "Hello" C &&

	git checkout master &&
	test_merge D other-branch &&

	git checkout third-branch &&
	test_commit "Third file" third "Nothing" E &&

	git checkout master &&
	test_commit "file=Blah" file "Blah" F &&

	test_tick && git merge --no-commit third-branch &&
	git checkout third-branch file &&
	git commit &&
	note G &&
	git branch fiddler-branch &&

	git checkout -b part2-branch &&
	test_commit "file=Part 2" file "Part 2" H &&

	git checkout fiddler-branch &&
	test_commit "Bad commit" file "Silly" I &&

	test_tick && git revert I && note J &&

	git checkout master &&
	test_tick && git merge --no-ff fiddler-branch &&
	note K

	test_commit "file=Part 1" file "Part 1" L &&

	test_tick && test_must_fail git merge part2-branch &&
	test_commit M file "Parts 1+2"
'

check_outcome () {
	outcome=$1
	shift

	case "$1" in
	*"("*)
		FMT="%P	%H | %s"
		munge_actual="
			s/^\([^	]*\)	\([^ ]*\) .*/(\1)\2/
			s/ //g
			s/()//
		"
		;;
	*)
		FMT="%H | %s"
		munge_actual="s/^\([^ ]*\) .*/\1/"
		;;
	esac &&
	printf "%s\n" $1 >expect &&
	shift

	param="$*" &&
	test_expect_$outcome "log $param" '
		git log --format="$FMT" $param |
		unnote >actual &&
		sed -e "$munge_actual" <actual >check &&
		test_cmp expect check || {
			cat actual
			false
		}
	'
}

check_result () {
	check_outcome success "$@"
}

# Odd merge G drops a change in F. Important that G is listed in all
# except the most basic list. Achieving this means normal merge D will also be
# shown in normal full-history, as we can't distinguish unless we do a
# simplification pass. After simplification, D is dropped but G remains.
# Also, merge simplification of G should not drop the parent B that the default
# simple history follows.
check_result 'M L K J I H G F E D C B A'
check_result '(LH)M (K)L (GJ)K (I)J (G)I (G)H (FE)G (D)F (B)E (BC)D (A)C (A)B A'
check_result 'M H L K J I G E F D C B A' --topo-order
check_result 'M L H B A' -- file
check_result '(LH)M (B)L (B)H (A)B A' --parents -- file
check_result 'M L J I H G F D B A' --full-history -- file
check_result '(LH)M (K)L (GJ)K (I)J (G)I (G)H (FB)G (D)F (BA)D (A)B A' --full-history --parents -- file
check_result '(LH)M (G)H (J)L (I)J (G)I (FB)G (B)F (A)B A' --simplify-merges -- file
check_result 'M L K G F D B A' --first-parent
check_result 'M L G F B A' --first-parent -- file

# Check that odd merge G remains shown when F is the bottom.
check_result 'M L K J I H G E' F..M
check_result 'M H L K J I G E' F..M --topo-order
check_result 'M L H' F..M -- file
check_result '(LH)M (B)L (B)H' --parents F..M -- file
check_result 'M L J I H G' F..M --full-history -- file
check_result '(LH)M (K)L (GJ)K (I)J (G)I (G)H (FB)G' F..M --full-history --parents -- file
check_result '(LH)M (G)H (J)L (I)J (G)I (FB)G' F..M --simplify-merges -- file
check_result 'M L K J I H G' F..M --ancestry-path
check_result 'M L J I H G' F..M --ancestry-path -- file
check_result '(LH)M (K)L (GJ)K (I)J (G)I (G)H (FE)G' F..M --ancestry-path --parents -- file
check_result '(LH)M (G)H (J)L (I)J (G)I (FE)G' F..M --ancestry-path --simplify-merges -- file
check_result 'M L K G' F..M --first-parent
check_result 'M L G' F..M --first-parent -- file

# Note that G is pruned when E is the bottom, even if it's the same commit list
# If we want history since E, then we're quite happy to ignore G that took E.
check_result 'M L K J I H G' E..M --ancestry-path
check_result 'M L J I H' E..M --ancestry-path -- file
check_result '(LH)M (K)L (EJ)K (I)J (E)I (E)H' E..M --ancestry-path --parents -- file
check_result '(LH)M (E)H (J)L (I)J (E)I' E..M --ancestry-path --simplify-merges -- file

# Should still be able to ignore I-J branch in simple log, despite limiting
# to G.
check_result 'M L K J I H' G..M
check_result 'M H L K J I' G..M --topo-order
check_outcome failure 'M L H' G..M -- file # includes J I
check_outcome failure '(LH)M (G)L (G)H' G..M --parents -- file # includes J I
check_result 'M L J I H' G..M --full-history -- file
check_result 'M L K J I H' G..M --full-history --parents -- file
check_result 'M H L J I' G..M --simplify-merges -- file
check_result 'M L K J I H' G..M --ancestry-path
check_result 'M L J I H' G..M --ancestry-path -- file
check_result 'M L K J I H' G..M --ancestry-path --parents -- file
check_result 'M H L J I' G..M --ancestry-path --simplify-merges -- file

# B..F should be able to simplify the merge D from irrelevant side branch C.
# Default log should also be free to follow B-D, and ignore C.
# But --full-history shouldn't drop D on its own - without simplification,
# we can't decide if the merge from INTERESTING commit C was sensible.
check_result 'F D C' B..F
check_outcome failure 'F' B..F -- file # includes D
check_outcome failure '(B)F' B..F --parents -- file # includes D
check_result 'F D' B..F --full-history -- file
check_result '(D)F (BA)D' B..F --full-history --parents -- file
check_result '(B)F' B..F --simplify-merges -- file
check_result 'F D' B..F --ancestry-path
check_result 'F' B..F --ancestry-path -- file
check_result 'F' B..F --ancestry-path --parents -- file
check_result 'F' B..F --ancestry-path --simplify-merges -- file
check_result 'F D' B..F --first-parent
check_result 'F' B..F --first-parent -- file

# E...F should be equivalent to E F ^B, and be able to drop D as above.
check_outcome failure 'F' E F ^B -- file # includes D
check_outcome failure 'F' E...F -- file # includes D

# Any sort of full history of C..F should show D, as it's the connection to C,
# and it differs from it.
check_result 'F D B' C..F
check_result 'F B' C..F -- file
check_result '(B)F (A)B' C..F --parents -- file
check_result 'F D B' C..F --full-history -- file
check_result '(D)F (BC)D (A)B' C..F --full-history --parents -- file
check_result '(D)F (BC)D (A)B' C..F --simplify-merges -- file
check_result 'F D' C..F --ancestry-path
check_result 'F D' C..F --ancestry-path -- file
check_result 'F D' C..F --ancestry-path --parents -- file
check_result 'F D' C..F --ancestry-path --simplify-merges -- file
check_result 'F D B' C..F --first-parent
check_result 'F B' C..F --first-parent -- file


test_done
Commit	Line	Data
abdea96e KB	1	#!/bin/sh
	2	#
	3	# ,---E--. H----------. marks !TREESAME parent paths
	4	# / \ / \*
	5	# A--B---D--F-G---------K-L-M
	6	# \ /* \ /
	7	# `-C-' `-I-J
	8	#
	9	# A creates "file", B and F change it.
	10	# Odd merge G takes the old version from B.
	11	# I changes it, but J reverts it, so K is TREESAME to both parents.
	12	# H and L both change "file", and M merges those changes.
	13
	14	test_description='TREESAME and limiting'
	15
	16	. ./test-lib.sh
	17
	18	note () {
	19	git tag "$1"
	20	}
	21
	22	unnote () {
e16f434a	23	git name-rev --tags --stdin \| sed -e "s\|$_x40 (tags/\([^)]*\))\([ ]\)\|\1\2\|g"
abdea96e KB	24	}
	25
	26	test_expect_success setup '
	27	test_commit "Initial file" file "Hi there" A &&
	28	git branch other-branch &&
	29
	30	test_commit "file=Hello" file "Hello" B &&
	31	git branch third-branch &&
	32
	33	git checkout other-branch &&
	34	test_commit "Added other" other "Hello" C &&
	35
	36	git checkout master &&
	37	test_merge D other-branch &&
	38
	39	git checkout third-branch &&
	40	test_commit "Third file" third "Nothing" E &&
	41
	42	git checkout master &&
	43	test_commit "file=Blah" file "Blah" F &&
	44
	45	test_tick && git merge --no-commit third-branch &&
	46	git checkout third-branch file &&
	47	git commit &&
	48	note G &&
	49	git branch fiddler-branch &&
	50
	51	git checkout -b part2-branch &&
	52	test_commit "file=Part 2" file "Part 2" H &&
	53
	54	git checkout fiddler-branch &&
	55	test_commit "Bad commit" file "Silly" I &&
	56
	57	test_tick && git revert I && note J &&
	58
	59	git checkout master &&
	60	test_tick && git merge --no-ff fiddler-branch &&
	61	note K
	62
	63	test_commit "file=Part 1" file "Part 1" L &&
	64
	65	test_tick && test_must_fail git merge part2-branch &&
	66	test_commit M file "Parts 1+2"
	67	'
	68
abdea96e KB	69	check_outcome () {
	70	outcome=$1
	71	shift
e16f434a JH	72
	73	case "$1" in
	74	"(")
	75	FMT="%P %H \| %s"
	76	munge_actual="
	77	s/^\([^ ]\) \([^ ]\) .*/(\1)\2/
	78	s/ //g
	79	s/()//
	80	"
	81	;;
	82	*)
	83	FMT="%H \| %s"
	84	munge_actual="s/^\([^ ]\) ./\1/"
	85	;;
	86	esac &&
	87	printf "%s\n" $1 >expect &&
	88	shift
	89
abdea96e KB	90	param="$*" &&
	91	test_expect_$outcome "log $param" '
	92	git log --format="$FMT" $param \|
	93	unnote >actual &&
e16f434a	94	sed -e "$munge_actual" <actual >check &&
abdea96e KB	95	test_cmp expect check \|\| {
	96	cat actual
	97	false
	98	}
	99	'
	100	}
	101
	102	check_result () {
	103	check_outcome success "$@"
	104	}
	105
	106	# Odd merge G drops a change in F. Important that G is listed in all
	107	# except the most basic list. Achieving this means normal merge D will also be
	108	# shown in normal full-history, as we can't distinguish unless we do a
	109	# simplification pass. After simplification, D is dropped but G remains.
53e38358 KB	110	# Also, merge simplification of G should not drop the parent B that the default
53e38358 KB	111	# simple history follows.
abdea96e	112	check_result 'M L K J I H G F E D C B A'
e16f434a	113	check_result '(LH)M (K)L (GJ)K (I)J (G)I (G)H (FE)G (D)F (B)E (BC)D (A)C (A)B A'
abdea96e KB	114	check_result 'M H L K J I G E F D C B A' --topo-order
abdea96e KB	115	check_result 'M L H B A' -- file
53e38358	116	check_result '(LH)M (B)L (B)H (A)B A' --parents -- file
d0af663e	117	check_result 'M L J I H G F D B A' --full-history -- file
53e38358	118	check_result '(LH)M (K)L (GJ)K (I)J (G)I (G)H (FB)G (D)F (BA)D (A)B A' --full-history --parents -- file
9c129eab	119	check_result '(LH)M (G)H (J)L (I)J (G)I (FB)G (B)F (A)B A' --simplify-merges -- file
abdea96e KB	120	check_result 'M L K G F D B A' --first-parent
	121	check_result 'M L G F B A' --first-parent -- file
	122
	123	# Check that odd merge G remains shown when F is the bottom.
	124	check_result 'M L K J I H G E' F..M
	125	check_result 'M H L K J I G E' F..M --topo-order
	126	check_result 'M L H' F..M -- file
53e38358	127	check_result '(LH)M (B)L (B)H' --parents F..M -- file
d0af663e	128	check_result 'M L J I H G' F..M --full-history -- file
53e38358	129	check_result '(LH)M (K)L (GJ)K (I)J (G)I (G)H (FB)G' F..M --full-history --parents -- file
9c129eab	130	check_result '(LH)M (G)H (J)L (I)J (G)I (FB)G' F..M --simplify-merges -- file
abdea96e	131	check_result 'M L K J I H G' F..M --ancestry-path
d0af663e	132	check_result 'M L J I H G' F..M --ancestry-path -- file
53e38358 KB	133	check_result '(LH)M (K)L (GJ)K (I)J (G)I (G)H (FE)G' F..M --ancestry-path --parents -- file
53e38358 KB	134	check_result '(LH)M (G)H (J)L (I)J (G)I (FE)G' F..M --ancestry-path --simplify-merges -- file
abdea96e KB	135	check_result 'M L K G' F..M --first-parent
	136	check_result 'M L G' F..M --first-parent -- file
	137
	138	# Note that G is pruned when E is the bottom, even if it's the same commit list
	139	# If we want history since E, then we're quite happy to ignore G that took E.
	140	check_result 'M L K J I H G' E..M --ancestry-path
4d826608	141	check_result 'M L J I H' E..M --ancestry-path -- file
bf3418b0	142	check_result '(LH)M (K)L (EJ)K (I)J (E)I (E)H' E..M --ancestry-path --parents -- file
4d826608	143	check_result '(LH)M (E)H (J)L (I)J (E)I' E..M --ancestry-path --simplify-merges -- file
abdea96e KB	144
	145	# Should still be able to ignore I-J branch in simple log, despite limiting
	146	# to G.
	147	check_result 'M L K J I H' G..M
	148	check_result 'M H L K J I' G..M --topo-order
	149	check_outcome failure 'M L H' G..M -- file # includes J I
53e38358	150	check_outcome failure '(LH)M (G)L (G)H' G..M --parents -- file # includes J I
abdea96e KB	151	check_result 'M L J I H' G..M --full-history -- file
	152	check_result 'M L K J I H' G..M --full-history --parents -- file
	153	check_result 'M H L J I' G..M --simplify-merges -- file
	154	check_result 'M L K J I H' G..M --ancestry-path
	155	check_result 'M L J I H' G..M --ancestry-path -- file
	156	check_result 'M L K J I H' G..M --ancestry-path --parents -- file
	157	check_result 'M H L J I' G..M --ancestry-path --simplify-merges -- file
	158
	159	# B..F should be able to simplify the merge D from irrelevant side branch C.
	160	# Default log should also be free to follow B-D, and ignore C.
	161	# But --full-history shouldn't drop D on its own - without simplification,
	162	# we can't decide if the merge from INTERESTING commit C was sensible.
	163	check_result 'F D C' B..F
d0af663e	164	check_outcome failure 'F' B..F -- file # includes D
53e38358	165	check_outcome failure '(B)F' B..F --parents -- file # includes D
d0af663e	166	check_result 'F D' B..F --full-history -- file
53e38358 KB	167	check_result '(D)F (BA)D' B..F --full-history --parents -- file
53e38358 KB	168	check_result '(B)F' B..F --simplify-merges -- file
abdea96e	169	check_result 'F D' B..F --ancestry-path
4d826608	170	check_result 'F' B..F --ancestry-path -- file
bf3418b0	171	check_result 'F' B..F --ancestry-path --parents -- file
4d826608	172	check_result 'F' B..F --ancestry-path --simplify-merges -- file
abdea96e KB	173	check_result 'F D' B..F --first-parent
	174	check_result 'F' B..F --first-parent -- file
	175
	176	# E...F should be equivalent to E F ^B, and be able to drop D as above.
d0af663e KB	177	check_outcome failure 'F' E F ^B -- file # includes D
d0af663e KB	178	check_outcome failure 'F' E...F -- file # includes D
abdea96e KB	179
	180	# Any sort of full history of C..F should show D, as it's the connection to C,
	181	# and it differs from it.
	182	check_result 'F D B' C..F
	183	check_result 'F B' C..F -- file
53e38358	184	check_result '(B)F (A)B' C..F --parents -- file
d0af663e	185	check_result 'F D B' C..F --full-history -- file
53e38358 KB	186	check_result '(D)F (BC)D (A)B' C..F --full-history --parents -- file
53e38358 KB	187	check_result '(D)F (BC)D (A)B' C..F --simplify-merges -- file
abdea96e	188	check_result 'F D' C..F --ancestry-path
d0af663e	189	check_result 'F D' C..F --ancestry-path -- file
abdea96e KB	190	check_result 'F D' C..F --ancestry-path --parents -- file
	191	check_result 'F D' C..F --ancestry-path --simplify-merges -- file
	192	check_result 'F D B' C..F --first-parent
	193	check_result 'F B' C..F --first-parent -- file
	194
	195
	196	test_done