test: add helper functions for git-bundle

Move git-bundle related functions from t5510 to a library, and this lib
will be shared with a new testcase t6020 which finds a known breakage of
"git-bundle".

Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jiang Xin 2021-01-11 21:27:01 -05:00 committed by Junio C Hamano
parent 72c4083ddf
commit 9901164d81
3 changed files with 440 additions and 22 deletions

View File

@ -6,22 +6,10 @@ test_description='Per branch config variables affects "git fetch".
'
. ./test-lib.sh
. "$TEST_DIRECTORY"/test-bundle-functions.sh
D=$(pwd)
test_bundle_object_count () {
git verify-pack -v "$1" >verify.out &&
test "$2" = $(grep "^$OID_REGEX " verify.out | wc -l)
}
convert_bundle_to_pack () {
while read x && test -n "$x"
do
:;
done
cat
}
test_expect_success setup '
echo >file original &&
git add file &&
@ -312,9 +300,7 @@ test_expect_success 'unbundle 1' '
test_expect_success 'bundle 1 has only 3 files ' '
cd "$D" &&
convert_bundle_to_pack <bundle1 >bundle.pack &&
git index-pack bundle.pack &&
test_bundle_object_count bundle.pack 3
test_bundle_object_count bundle1 3
'
test_expect_success 'unbundle 2' '
@ -329,9 +315,7 @@ test_expect_success 'bundle does not prerequisite objects' '
git add file2 &&
git commit -m add.file2 file2 &&
git bundle create bundle3 -1 HEAD &&
convert_bundle_to_pack <bundle3 >bundle.pack &&
git index-pack bundle.pack &&
test_bundle_object_count bundle.pack 3
test_bundle_object_count bundle3 3
'
test_expect_success 'bundle should be able to create a full history' '
@ -884,9 +868,7 @@ test_expect_success 'all boundary commits are excluded' '
git merge otherside &&
ad=$(git log --no-walk --format=%ad HEAD) &&
git bundle create twoside-boundary.bdl main --since="$ad" &&
convert_bundle_to_pack <twoside-boundary.bdl >twoside-boundary.pack &&
pack=$(git index-pack --fix-thin --stdin <twoside-boundary.pack) &&
test_bundle_object_count .git/objects/pack/pack-${pack##pack }.pack 3
test_bundle_object_count --thin twoside-boundary.bdl 3
'
test_expect_success 'fetch --prune prints the remotes url' '

394
t/t6020-bundle-misc.sh Executable file
View File

@ -0,0 +1,394 @@
#!/bin/sh
#
# Copyright (c) 2021 Jiang Xin
#
test_description='Test git-bundle'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./test-lib.sh
. "$TEST_DIRECTORY"/test-bundle-functions.sh
# Create a commit or tag and set the variable with the object ID.
test_commit_setvar () {
notick=
signoff=
indir=
merge=
tag=
var=
while test $# != 0
do
case "$1" in
--merge)
merge=t
;;
--tag)
tag=t
;;
--notick)
notick=t
;;
--signoff)
signoff="$1"
;;
-C)
shift
indir="$1"
;;
-*)
echo >&2 "error: unknown option $1"
return 1
;;
*)
break
;;
esac
shift
done
if test $# -lt 2
then
echo >&2 "error: test_commit_setvar must have at least 2 arguments"
return 1
fi
var=$1
shift
indir=${indir:+"$indir"/}
if test -z "$notick"
then
test_tick
fi &&
if test -n "$merge"
then
git ${indir:+ -C "$indir"} merge --no-edit --no-ff \
${2:+-m "$2"} "$1" &&
oid=$(git ${indir:+ -C "$indir"} rev-parse HEAD)
elif test -n "$tag"
then
git ${indir:+ -C "$indir"} tag -m "$1" "$1" "${2:-HEAD}" &&
oid=$(git ${indir:+ -C "$indir"} rev-parse "$1")
else
file=${2:-"$1.t"} &&
echo "${3-$1}" >"$indir$file" &&
git ${indir:+ -C "$indir"} add "$file" &&
git ${indir:+ -C "$indir"} commit $signoff -m "$1" &&
oid=$(git ${indir:+ -C "$indir"} rev-parse HEAD)
fi &&
eval $var=$oid
}
# Format the output of git commands to make a user-friendly and stable
# text. We can easily prepare the expect text without having to worry
# about future changes of the commit ID and spaces of the output.
make_user_friendly_and_stable_output () {
sed \
-e "s/${A%${A#???????}}[0-9a-f]*/<COMMIT-A>/g" \
-e "s/${B%${B#???????}}[0-9a-f]*/<COMMIT-B>/g" \
-e "s/${C%${C#???????}}[0-9a-f]*/<COMMIT-C>/g" \
-e "s/${D%${D#???????}}[0-9a-f]*/<COMMIT-D>/g" \
-e "s/${E%${E#???????}}[0-9a-f]*/<COMMIT-E>/g" \
-e "s/${F%${F#???????}}[0-9a-f]*/<COMMIT-F>/g" \
-e "s/${G%${G#???????}}[0-9a-f]*/<COMMIT-G>/g" \
-e "s/${H%${H#???????}}[0-9a-f]*/<COMMIT-H>/g" \
-e "s/${I%${I#???????}}[0-9a-f]*/<COMMIT-I>/g" \
-e "s/${J%${J#???????}}[0-9a-f]*/<COMMIT-J>/g" \
-e "s/${K%${K#???????}}[0-9a-f]*/<COMMIT-K>/g" \
-e "s/${L%${L#???????}}[0-9a-f]*/<COMMIT-L>/g" \
-e "s/${M%${M#???????}}[0-9a-f]*/<COMMIT-M>/g" \
-e "s/${N%${N#???????}}[0-9a-f]*/<COMMIT-N>/g" \
-e "s/${O%${O#???????}}[0-9a-f]*/<COMMIT-O>/g" \
-e "s/${P%${P#???????}}[0-9a-f]*/<COMMIT-P>/g" \
-e "s/${TAG1%${TAG1#???????}}[0-9a-f]*/<TAG-1>/g" \
-e "s/${TAG2%${TAG2#???????}}[0-9a-f]*/<TAG-2>/g" \
-e "s/${TAG3%${TAG3#???????}}[0-9a-f]*/<TAG-3>/g" \
-e "s/ *\$//"
}
# (C) (D, pull/1/head, topic/1)
# o --- o
# / \ (L)
# / \ o (H, topic/2) (M, tag:v2)
# / (F) \ / (N, tag:v3)
# / o --------- o (G, pull/2/head) o --- o --- o (release)
# / / \ \ / \
# o --- o --- o -------- o -- o ------------------ o ------- o --- o (main)
# (A) (B) (E, tag:v1) (I) (J) (K) (O) (P)
#
test_expect_success 'setup' '
# Try to make a stable fixed width for abbreviated commit ID,
# this fixed-width oid will be replaced with "<OID>".
git config core.abbrev 7 &&
# branch main: commit A & B
test_commit_setvar A "Commit A" main.txt &&
test_commit_setvar B "Commit B" main.txt &&
# branch topic/1: commit C & D, refs/pull/1/head
git checkout -b topic/1 &&
test_commit_setvar C "Commit C" topic-1.txt &&
test_commit_setvar D "Commit D" topic-1.txt &&
git update-ref refs/pull/1/head HEAD &&
# branch topic/1: commit E, tag v1
git checkout main &&
test_commit_setvar E "Commit E" main.txt &&
test_commit_setvar --tag TAG1 v1 &&
# branch topic/2: commit F & G, refs/pull/2/head
git checkout -b topic/2 &&
test_commit_setvar F "Commit F" topic-2.txt &&
test_commit_setvar G "Commit G" topic-2.txt &&
git update-ref refs/pull/2/head HEAD &&
test_commit_setvar H "Commit H" topic-2.txt &&
# branch main: merge commit I & J
git checkout main &&
test_commit_setvar --merge I topic/1 "Merge commit I" &&
test_commit_setvar --merge J refs/pull/2/head "Merge commit J" &&
# branch main: commit K
git checkout main &&
test_commit_setvar K "Commit K" main.txt &&
# branch release:
git checkout -b release &&
test_commit_setvar L "Commit L" release.txt &&
test_commit_setvar M "Commit M" release.txt &&
test_commit_setvar --tag TAG2 v2 &&
test_commit_setvar N "Commit N" release.txt &&
test_commit_setvar --tag TAG3 v3 &&
# branch main: merge commit O, commit P
git checkout main &&
test_commit_setvar --merge O tags/v2 "Merge commit O" &&
test_commit_setvar P "Commit P" main.txt
'
test_expect_failure 'create bundle from special rev: main^!' '
git bundle create special-rev.bdl "main^!" &&
git bundle list-heads special-rev.bdl |
make_user_friendly_and_stable_output >actual &&
cat >expect <<-\EOF &&
<COMMIT-P> refs/heads/main
EOF
test_i18ncmp expect actual &&
git bundle verify special-rev.bdl |
make_user_friendly_and_stable_output >actual &&
cat >expect <<-\EOF &&
The bundle contains this ref:
<COMMIT-P> refs/heads/main
The bundle requires this ref:
<COMMIT-O>
EOF
test_i18ncmp expect actual &&
test_bundle_object_count special-rev.bdl 3
'
test_expect_success 'create bundle with --max-count option' '
git bundle create max-count.bdl --max-count 1 \
main \
"^release" \
refs/tags/v1 \
refs/pull/1/head \
refs/pull/2/head &&
git bundle verify max-count.bdl |
make_user_friendly_and_stable_output >actual &&
cat >expect <<-\EOF &&
The bundle contains these 2 refs:
<COMMIT-P> refs/heads/main
<TAG-1> refs/tags/v1
The bundle requires this ref:
<COMMIT-O>
EOF
test_i18ncmp expect actual &&
test_bundle_object_count max-count.bdl 4
'
test_expect_success 'create bundle with --since option' '
git log -1 --pretty="%ad" $M >actual &&
cat >expect <<-\EOF &&
Thu Apr 7 15:26:13 2005 -0700
EOF
test_cmp expect actual &&
git bundle create since.bdl \
--since "Thu Apr 7 15:27:00 2005 -0700" \
--all &&
git bundle verify since.bdl |
make_user_friendly_and_stable_output >actual &&
cat >expect <<-\EOF &&
The bundle contains these 5 refs:
<COMMIT-P> refs/heads/main
<COMMIT-N> refs/heads/release
<TAG-2> refs/tags/v2
<TAG-3> refs/tags/v3
<COMMIT-P> HEAD
The bundle requires these 2 refs:
<COMMIT-M>
<COMMIT-K>
EOF
test_i18ncmp expect actual &&
test_bundle_object_count --thin since.bdl 13
'
test_expect_success 'create bundle 1 - no prerequisites' '
git bundle create 1.bdl topic/1 topic/2 &&
cat >expect <<-\EOF &&
The bundle contains these 2 refs:
<COMMIT-D> refs/heads/topic/1
<COMMIT-H> refs/heads/topic/2
The bundle records a complete history.
EOF
# verify bundle, which has no prerequisites
git bundle verify 1.bdl |
make_user_friendly_and_stable_output >actual &&
test_i18ncmp expect actual &&
test_bundle_object_count 1.bdl 24
'
test_expect_success 'create bundle 2 - has prerequisites' '
git bundle create 2.bdl \
--ignore-missing \
^topic/deleted \
^$D \
^topic/2 \
release &&
cat >expect <<-\EOF &&
The bundle contains this ref:
<COMMIT-N> refs/heads/release
The bundle requires these 3 refs:
<COMMIT-D>
<COMMIT-E>
<COMMIT-G>
EOF
git bundle verify 2.bdl |
make_user_friendly_and_stable_output >actual &&
test_i18ncmp expect actual &&
test_bundle_object_count 2.bdl 16
'
test_expect_success 'fail to verify bundle without prerequisites' '
git init --bare test1.git &&
cat >expect <<-\EOF &&
error: Repository lacks these prerequisite commits:
error: <COMMIT-D>
error: <COMMIT-E>
error: <COMMIT-G>
EOF
test_must_fail git -C test1.git bundle verify ../2.bdl 2>&1 |
make_user_friendly_and_stable_output >actual &&
test_i18ncmp expect actual
'
test_expect_success 'create bundle 3 - two refs, same object' '
git bundle create --version=3 3.bdl \
^release \
^topic/1 \
^topic/2 \
main \
HEAD &&
cat >expect <<-\EOF &&
The bundle contains these 2 refs:
<COMMIT-P> refs/heads/main
<COMMIT-P> HEAD
The bundle requires these 2 refs:
<COMMIT-M>
<COMMIT-K>
EOF
git bundle verify 3.bdl |
make_user_friendly_and_stable_output >actual &&
test_i18ncmp expect actual &&
test_bundle_object_count 3.bdl 4
'
test_expect_success 'create bundle 4 - with tags' '
git bundle create 4.bdl \
^main \
^release \
^topic/1 \
^topic/2 \
--all &&
cat >expect <<-\EOF &&
The bundle contains these 3 refs:
<TAG-1> refs/tags/v1
<TAG-2> refs/tags/v2
<TAG-3> refs/tags/v3
The bundle records a complete history.
EOF
git bundle verify 4.bdl |
make_user_friendly_and_stable_output >actual &&
test_i18ncmp expect actual &&
test_bundle_object_count 4.bdl 3
'
test_expect_success 'clone from bundle' '
git clone --mirror 1.bdl mirror.git &&
git -C mirror.git show-ref |
make_user_friendly_and_stable_output >actual &&
cat >expect <<-\EOF &&
<COMMIT-D> refs/heads/topic/1
<COMMIT-H> refs/heads/topic/2
EOF
test_cmp expect actual &&
git -C mirror.git fetch ../2.bdl "+refs/*:refs/*" &&
git -C mirror.git show-ref |
make_user_friendly_and_stable_output >actual &&
cat >expect <<-\EOF &&
<COMMIT-N> refs/heads/release
<COMMIT-D> refs/heads/topic/1
<COMMIT-H> refs/heads/topic/2
EOF
test_cmp expect actual &&
git -C mirror.git fetch ../3.bdl "+refs/*:refs/*" &&
git -C mirror.git show-ref |
make_user_friendly_and_stable_output >actual &&
cat >expect <<-\EOF &&
<COMMIT-P> refs/heads/main
<COMMIT-N> refs/heads/release
<COMMIT-D> refs/heads/topic/1
<COMMIT-H> refs/heads/topic/2
EOF
test_cmp expect actual &&
git -C mirror.git fetch ../4.bdl "+refs/*:refs/*" &&
git -C mirror.git show-ref |
make_user_friendly_and_stable_output >actual &&
cat >expect <<-\EOF &&
<COMMIT-P> refs/heads/main
<COMMIT-N> refs/heads/release
<COMMIT-D> refs/heads/topic/1
<COMMIT-H> refs/heads/topic/2
<TAG-1> refs/tags/v1
<TAG-2> refs/tags/v2
<TAG-3> refs/tags/v3
EOF
test_cmp expect actual
'
test_done

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@ -0,0 +1,42 @@
# Library of git-bundle related functions.
# Display the pack data contained in the bundle file, bypassing the
# header that contains the signature, prerequisites and references.
convert_bundle_to_pack () {
while read x && test -n "$x"
do
:;
done
cat
}
# Check count of objects in a bundle file.
# We can use "--thin" opiton to check thin pack, which must be fixed by
# command `git-index-pack --fix-thin --stdin`.
test_bundle_object_count () {
thin=
if test "$1" = "--thin"
then
thin=t
shift
fi
if test $# -ne 2
then
echo >&2 "args should be: <bundle> <count>"
return 1
fi
bundle=$1
pack=$bundle.pack
convert_bundle_to_pack <"$bundle" >"$pack" &&
if test -n "$thin"
then
mv "$pack" "$bundle.thin.pack" &&
git index-pack --stdin --fix-thin "$pack" <"$bundle.thin.pack"
else
git index-pack "$pack"
fi || return 1
count=$(git show-index <"${pack%pack}idx" | wc -l) &&
test $2 = $count && return 0
echo >&2 "error: object count for $bundle is $count, not $2"
return 1
}