467 lines
14 KiB
Bash
Executable file
467 lines
14 KiB
Bash
Executable file
#!/bin/sh
|
|
#
|
|
# Copyright (c) 2018 Jiang Xin
|
|
#
|
|
|
|
test_description='Test git pack-redundant
|
|
|
|
In order to test git-pack-redundant, we will create a number of objects and
|
|
packs in the repository `master.git`. The relationship between packs (P1-P8)
|
|
and objects (T, A-R) is showed in the following chart. Objects of a pack will
|
|
be marked with letter x, while objects of redundant packs will be marked with
|
|
exclamation point, and redundant pack itself will be marked with asterisk.
|
|
|
|
| T A B C D E F G H I J K L M N O P Q R
|
|
----+--------------------------------------
|
|
P1 | x x x x x x x x
|
|
P2* | ! ! ! ! ! ! !
|
|
P3 | x x x x x x
|
|
P4* | ! ! ! ! !
|
|
P5 | x x x x
|
|
P6* | ! ! !
|
|
P7 | x x
|
|
P8* | !
|
|
----+--------------------------------------
|
|
ALL | x x x x x x x x x x x x x x x x x x x
|
|
|
|
Another repository `shared.git` has unique objects (X-Z), while other objects
|
|
(marked with letter s) are shared through alt-odb (of `master.git`). The
|
|
relationship between packs and objects is as follows:
|
|
|
|
| T A B C D E F G H I J K L M N O P Q R X Y Z
|
|
----+----------------------------------------------
|
|
Px1 | s s s x x x
|
|
Px2 | s s s x x x
|
|
'
|
|
|
|
. ./test-lib.sh
|
|
|
|
master_repo=master.git
|
|
shared_repo=shared.git
|
|
|
|
# Create commits in <repo> and assign each commit's oid to shell variables
|
|
# given in the arguments (A, B, and C). E.g.:
|
|
#
|
|
# create_commits_in <repo> A B C
|
|
#
|
|
# NOTE: Avoid calling this function from a subshell since variable
|
|
# assignments will disappear when subshell exits.
|
|
create_commits_in () {
|
|
repo="$1" &&
|
|
if ! parent=$(git -C "$repo" rev-parse HEAD^{} 2>/dev/null)
|
|
then
|
|
parent=
|
|
fi &&
|
|
T=$(git -C "$repo" write-tree) &&
|
|
shift &&
|
|
while test $# -gt 0
|
|
do
|
|
name=$1 &&
|
|
test_tick &&
|
|
if test -z "$parent"
|
|
then
|
|
oid=$(echo $name | git -C "$repo" commit-tree $T)
|
|
else
|
|
oid=$(echo $name | git -C "$repo" commit-tree -p $parent $T)
|
|
fi &&
|
|
eval $name=$oid &&
|
|
parent=$oid &&
|
|
shift ||
|
|
return 1
|
|
done &&
|
|
git -C "$repo" update-ref refs/heads/master $oid
|
|
}
|
|
|
|
# Create pack in <repo> and assign pack id to variable given in the 2nd argument
|
|
# (<name>). Commits in the pack will be read from stdin. E.g.:
|
|
#
|
|
# create_pack_in <repo> <name> <<-EOF
|
|
# ...
|
|
# EOF
|
|
#
|
|
# NOTE: commits from stdin should be given using heredoc, not using pipe, and
|
|
# avoid calling this function from a subshell since variable assignments will
|
|
# disappear when subshell exits.
|
|
create_pack_in () {
|
|
repo="$1" &&
|
|
name="$2" &&
|
|
pack=$(git -C "$repo/objects/pack" pack-objects -q pack) &&
|
|
eval $name=$pack &&
|
|
eval P$pack=$name:$pack
|
|
}
|
|
|
|
format_packfiles () {
|
|
sed \
|
|
-e "s#.*/pack-\(.*\)\.idx#\1#" \
|
|
-e "s#.*/pack-\(.*\)\.pack#\1#" |
|
|
sort -u |
|
|
while read p
|
|
do
|
|
if test -z "$(eval echo \${P$p})"
|
|
then
|
|
echo $p
|
|
else
|
|
eval echo "\${P$p}"
|
|
fi
|
|
done |
|
|
sort
|
|
}
|
|
|
|
test_expect_success 'setup master repo' '
|
|
git init --bare "$master_repo" &&
|
|
create_commits_in "$master_repo" A B C D E F G H I J K L M N O P Q R
|
|
'
|
|
|
|
#############################################################################
|
|
# Chart of packs and objects for this test case
|
|
#
|
|
# | T A B C D E F G H I J K L M N O P Q R
|
|
# ----+--------------------------------------
|
|
# P1 | x x x x x x x x
|
|
# P2 | x x x x x x x
|
|
# P3 | x x x x x x
|
|
# ----+--------------------------------------
|
|
# ALL | x x x x x x x x x x x x x x x
|
|
#
|
|
#############################################################################
|
|
test_expect_success 'master: no redundant for pack 1, 2, 3' '
|
|
create_pack_in "$master_repo" P1 <<-EOF &&
|
|
$T
|
|
$A
|
|
$B
|
|
$C
|
|
$D
|
|
$E
|
|
$F
|
|
$R
|
|
EOF
|
|
create_pack_in "$master_repo" P2 <<-EOF &&
|
|
$B
|
|
$C
|
|
$D
|
|
$E
|
|
$G
|
|
$H
|
|
$I
|
|
EOF
|
|
create_pack_in "$master_repo" P3 <<-EOF &&
|
|
$F
|
|
$I
|
|
$J
|
|
$K
|
|
$L
|
|
$M
|
|
EOF
|
|
(
|
|
cd "$master_repo" &&
|
|
git pack-redundant --all >out &&
|
|
test_must_be_empty out
|
|
)
|
|
'
|
|
|
|
#############################################################################
|
|
# Chart of packs and objects for this test case
|
|
#
|
|
# | T A B C D E F G H I J K L M N O P Q R
|
|
# ----+--------------------------------------
|
|
# P1 | x x x x x x x x
|
|
# P2 | x x x x x x x
|
|
# P3* | ! ! ! ! ! !
|
|
# P4 | x x x x x
|
|
# P5 | x x x x
|
|
# ----+--------------------------------------
|
|
# ALL | x x x x x x x x x x x x x x x x x x
|
|
#
|
|
#############################################################################
|
|
test_expect_success 'master: one of pack-2/pack-3 is redundant' '
|
|
create_pack_in "$master_repo" P4 <<-EOF &&
|
|
$J
|
|
$K
|
|
$L
|
|
$M
|
|
$P
|
|
EOF
|
|
create_pack_in "$master_repo" P5 <<-EOF &&
|
|
$G
|
|
$H
|
|
$N
|
|
$O
|
|
EOF
|
|
(
|
|
cd "$master_repo" &&
|
|
cat >expect <<-EOF &&
|
|
P3:$P3
|
|
EOF
|
|
git pack-redundant --all >out &&
|
|
format_packfiles <out >actual &&
|
|
test_cmp expect actual
|
|
)
|
|
'
|
|
|
|
#############################################################################
|
|
# Chart of packs and objects for this test case
|
|
#
|
|
# | T A B C D E F G H I J K L M N O P Q R
|
|
# ----+--------------------------------------
|
|
# P1 | x x x x x x x x
|
|
# P2* | ! ! ! ! ! ! !
|
|
# P3 | x x x x x x
|
|
# P4* | ! ! ! ! !
|
|
# P5 | x x x x
|
|
# P6* | ! ! !
|
|
# P7 | x x
|
|
# ----+--------------------------------------
|
|
# ALL | x x x x x x x x x x x x x x x x x x x
|
|
#
|
|
#############################################################################
|
|
test_expect_success 'master: pack 2, 4, and 6 are redundant' '
|
|
create_pack_in "$master_repo" P6 <<-EOF &&
|
|
$N
|
|
$O
|
|
$Q
|
|
EOF
|
|
create_pack_in "$master_repo" P7 <<-EOF &&
|
|
$P
|
|
$Q
|
|
EOF
|
|
(
|
|
cd "$master_repo" &&
|
|
cat >expect <<-EOF &&
|
|
P2:$P2
|
|
P4:$P4
|
|
P6:$P6
|
|
EOF
|
|
git pack-redundant --all >out &&
|
|
format_packfiles <out >actual &&
|
|
test_cmp expect actual
|
|
)
|
|
'
|
|
|
|
#############################################################################
|
|
# Chart of packs and objects for this test case
|
|
#
|
|
# | T A B C D E F G H I J K L M N O P Q R
|
|
# ----+--------------------------------------
|
|
# P1 | x x x x x x x x
|
|
# P2* | ! ! ! ! ! ! !
|
|
# P3 | x x x x x x
|
|
# P4* | ! ! ! ! !
|
|
# P5 | x x x x
|
|
# P6* | ! ! !
|
|
# P7 | x x
|
|
# P8* | !
|
|
# ----+--------------------------------------
|
|
# ALL | x x x x x x x x x x x x x x x x x x x
|
|
#
|
|
#############################################################################
|
|
test_expect_success 'master: pack-8 (subset of pack-1) is also redundant' '
|
|
create_pack_in "$master_repo" P8 <<-EOF &&
|
|
$A
|
|
EOF
|
|
(
|
|
cd "$master_repo" &&
|
|
cat >expect <<-EOF &&
|
|
P2:$P2
|
|
P4:$P4
|
|
P6:$P6
|
|
P8:$P8
|
|
EOF
|
|
git pack-redundant --all >out &&
|
|
format_packfiles <out >actual &&
|
|
test_cmp expect actual
|
|
)
|
|
'
|
|
|
|
test_expect_success 'master: clean loose objects' '
|
|
(
|
|
cd "$master_repo" &&
|
|
git prune-packed &&
|
|
find objects -type f | sed -e "/objects\/pack\//d" >out &&
|
|
test_must_be_empty out
|
|
)
|
|
'
|
|
|
|
test_expect_success 'master: remove redundant packs and pass fsck' '
|
|
(
|
|
cd "$master_repo" &&
|
|
git pack-redundant --all | xargs rm &&
|
|
git fsck &&
|
|
git pack-redundant --all >out &&
|
|
test_must_be_empty out
|
|
)
|
|
'
|
|
|
|
# The following test cases will execute inside `shared.git`, instead of
|
|
# inside `master.git`.
|
|
test_expect_success 'setup shared.git' '
|
|
git clone --mirror "$master_repo" "$shared_repo" &&
|
|
(
|
|
cd "$shared_repo" &&
|
|
printf "../../$master_repo/objects\n" >objects/info/alternates
|
|
)
|
|
'
|
|
|
|
test_expect_success 'shared: all packs are redundant, but no output without --alt-odb' '
|
|
(
|
|
cd "$shared_repo" &&
|
|
git pack-redundant --all >out &&
|
|
test_must_be_empty out
|
|
)
|
|
'
|
|
|
|
#############################################################################
|
|
# Chart of packs and objects for this test case
|
|
#
|
|
# ================ master.git ===============
|
|
# | T A B C D E F G H I J K L M N O P Q R <----------+
|
|
# ----+-------------------------------------- |
|
|
# P1 | x x x x x x x x |
|
|
# P3 | x x x x x x |
|
|
# P5 | x x x x |
|
|
# P7 | x x |
|
|
# ----+-------------------------------------- |
|
|
# ALL | x x x x x x x x x x x x x x x x x x x |
|
|
# |
|
|
# |
|
|
# ================ shared.git =============== |
|
|
# | T A B C D E F G H I J K L M N O P Q R <objects/info/alternates>
|
|
# ----+--------------------------------------
|
|
# P1* | s s s s s s s s
|
|
# P3* | s s s s s s
|
|
# P5* | s s s s
|
|
# P7* | s s
|
|
# ----+--------------------------------------
|
|
# ALL | x x x x x x x x x x x x x x x x x x x
|
|
#
|
|
#############################################################################
|
|
test_expect_success 'shared: show redundant packs in stderr for verbose mode' '
|
|
(
|
|
cd "$shared_repo" &&
|
|
cat >expect <<-EOF &&
|
|
P1:$P1
|
|
P3:$P3
|
|
P5:$P5
|
|
P7:$P7
|
|
EOF
|
|
git pack-redundant --all --verbose >out 2>out.err &&
|
|
test_must_be_empty out &&
|
|
grep "pack$" out.err | format_packfiles >actual &&
|
|
test_cmp expect actual
|
|
)
|
|
'
|
|
|
|
test_expect_success 'shared: remove redundant packs, no packs left' '
|
|
(
|
|
cd "$shared_repo" &&
|
|
cat >expect <<-EOF &&
|
|
fatal: Zero packs found!
|
|
EOF
|
|
git pack-redundant --all --alt-odb | xargs rm &&
|
|
git fsck &&
|
|
test_must_fail git pack-redundant --all --alt-odb >actual 2>&1 &&
|
|
test_cmp expect actual
|
|
)
|
|
'
|
|
|
|
test_expect_success 'shared: create new objects and packs' '
|
|
create_commits_in "$shared_repo" X Y Z &&
|
|
create_pack_in "$shared_repo" Px1 <<-EOF &&
|
|
$X
|
|
$Y
|
|
$Z
|
|
$A
|
|
$B
|
|
$C
|
|
EOF
|
|
create_pack_in "$shared_repo" Px2 <<-EOF
|
|
$X
|
|
$Y
|
|
$Z
|
|
$D
|
|
$E
|
|
$F
|
|
EOF
|
|
'
|
|
|
|
test_expect_success 'shared: no redundant without --alt-odb' '
|
|
(
|
|
cd "$shared_repo" &&
|
|
git pack-redundant --all >out &&
|
|
test_must_be_empty out
|
|
)
|
|
'
|
|
|
|
#############################################################################
|
|
# Chart of packs and objects for this test case
|
|
#
|
|
# ================ master.git ===============
|
|
# | T A B C D E F G H I J K L M N O P Q R <----------------+
|
|
# ----+-------------------------------------- |
|
|
# P1 | x x x x x x x x |
|
|
# P3 | x x x x x x |
|
|
# P5 | x x x x |
|
|
# P7 | x x |
|
|
# ----+-------------------------------------- |
|
|
# ALL | x x x x x x x x x x x x x x x x x x x |
|
|
# |
|
|
# |
|
|
# ================ shared.git ======================= |
|
|
# | T A B C D E F G H I J K L M N O P Q R X Y Z <objects/info/alternates>
|
|
# ----+----------------------------------------------
|
|
# Px1 | s s s x x x
|
|
# Px2*| s s s ! ! !
|
|
# ----+----------------------------------------------
|
|
# ALL | s s s s s s s s s s s s s s s s s s s x x x
|
|
#
|
|
#############################################################################
|
|
test_expect_success 'shared: one pack is redundant with --alt-odb' '
|
|
(
|
|
cd "$shared_repo" &&
|
|
git pack-redundant --all --alt-odb >out &&
|
|
format_packfiles <out >actual &&
|
|
test_line_count = 1 actual
|
|
)
|
|
'
|
|
|
|
#############################################################################
|
|
# Chart of packs and objects for this test case
|
|
#
|
|
# ================ master.git ===============
|
|
# | T A B C D E F G H I J K L M N O P Q R <----------------+
|
|
# ----+-------------------------------------- |
|
|
# P1 | x x x x x x x x |
|
|
# P3 | x x x x x x |
|
|
# P5 | x x x x |
|
|
# P7 | x x |
|
|
# ----+-------------------------------------- |
|
|
# ALL | x x x x x x x x x x x x x x x x x x x |
|
|
# |
|
|
# |
|
|
# ================ shared.git ======================= |
|
|
# | T A B C D E F G H I J K L M N O P Q R X Y Z <objects/info/alternates>
|
|
# ----+----------------------------------------------
|
|
# Px1*| s s s i i i
|
|
# Px2*| s s s i i i
|
|
# ----+----------------------------------------------
|
|
# ALL | s s s s s s s s s s s s s s s s s s s i i i
|
|
# (ignored objects, marked with i)
|
|
#
|
|
#############################################################################
|
|
test_expect_success 'shared: ignore unique objects and all two packs are redundant' '
|
|
(
|
|
cd "$shared_repo" &&
|
|
cat >expect <<-EOF &&
|
|
Px1:$Px1
|
|
Px2:$Px2
|
|
EOF
|
|
git pack-redundant --all --alt-odb >out <<-EOF &&
|
|
$X
|
|
$Y
|
|
$Z
|
|
EOF
|
|
format_packfiles <out >actual &&
|
|
test_cmp expect actual
|
|
)
|
|
'
|
|
|
|
test_done
|