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https://github.com/git/git.git
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5bb0fd2cab
In order to create an incremental bundle, we need to pass many arguments to let git-bundle ignore some already packed commits. It will be more convenient to pass args via stdin. But the current implementation does not allow us to do this. This is because args are parsed twice when creating bundle. The first time for parsing args is in `compute_and_write_prerequisites()` by running `git-rev-list` command to write prerequisites in bundle file, and stdin is consumed in this step if "--stdin" option is provided for `git-bundle`. Later nothing can be read from stdin when running `setup_revisions()` in `create_bundle()`. The solution is to parse args once by removing the entire function `compute_and_write_prerequisites()` and then calling function `setup_revisions()`. In order to write prerequisites for bundle, will call `prepare_revision_walk()` and `traverse_commit_list()`. But after calling `prepare_revision_walk()`, the object array `revs.pending` is left empty, and the following steps could not work properly with the empty object array (`revs.pending`). Therefore, make a copy of `revs` to `revs_copy` for later use right after calling `setup_revisions()`. The copy of `revs_copy` is not a deep copy, it shares the same objects with `revs`. The object array of `revs` has been cleared, but objects themselves are still kept. Flags of objects may change after calling `prepare_revision_walk()`, we can use these changed flags without calling the `git rev-list` command and parsing its output like the former implementation. Also add testcases for git bundle in t6020, which read args from stdin. Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
464 lines
12 KiB
Bash
Executable File
464 lines
12 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2021 Jiang Xin
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#
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test_description='Test git-bundle'
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GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
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export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
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. ./test-lib.sh
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. "$TEST_DIRECTORY"/test-bundle-functions.sh
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# Create a commit or tag and set the variable with the object ID.
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test_commit_setvar () {
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notick=
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signoff=
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indir=
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merge=
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tag=
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var=
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while test $# != 0
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do
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case "$1" in
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--merge)
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merge=t
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;;
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--tag)
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tag=t
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;;
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--notick)
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notick=t
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;;
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--signoff)
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signoff="$1"
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;;
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-C)
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shift
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indir="$1"
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;;
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-*)
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echo >&2 "error: unknown option $1"
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return 1
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;;
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*)
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break
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;;
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esac
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shift
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done
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if test $# -lt 2
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then
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echo >&2 "error: test_commit_setvar must have at least 2 arguments"
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return 1
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fi
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var=$1
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shift
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indir=${indir:+"$indir"/}
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if test -z "$notick"
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then
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test_tick
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fi &&
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if test -n "$merge"
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then
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git ${indir:+ -C "$indir"} merge --no-edit --no-ff \
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${2:+-m "$2"} "$1" &&
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oid=$(git ${indir:+ -C "$indir"} rev-parse HEAD)
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elif test -n "$tag"
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then
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git ${indir:+ -C "$indir"} tag -m "$1" "$1" "${2:-HEAD}" &&
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oid=$(git ${indir:+ -C "$indir"} rev-parse "$1")
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else
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file=${2:-"$1.t"} &&
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echo "${3-$1}" >"$indir$file" &&
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git ${indir:+ -C "$indir"} add "$file" &&
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git ${indir:+ -C "$indir"} commit $signoff -m "$1" &&
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oid=$(git ${indir:+ -C "$indir"} rev-parse HEAD)
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fi &&
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eval $var=$oid
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}
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# Format the output of git commands to make a user-friendly and stable
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# text. We can easily prepare the expect text without having to worry
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# about future changes of the commit ID and spaces of the output.
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make_user_friendly_and_stable_output () {
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sed \
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-e "s/${A%${A#???????}}[0-9a-f]*/<COMMIT-A>/g" \
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-e "s/${B%${B#???????}}[0-9a-f]*/<COMMIT-B>/g" \
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-e "s/${C%${C#???????}}[0-9a-f]*/<COMMIT-C>/g" \
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-e "s/${D%${D#???????}}[0-9a-f]*/<COMMIT-D>/g" \
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-e "s/${E%${E#???????}}[0-9a-f]*/<COMMIT-E>/g" \
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-e "s/${F%${F#???????}}[0-9a-f]*/<COMMIT-F>/g" \
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-e "s/${G%${G#???????}}[0-9a-f]*/<COMMIT-G>/g" \
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-e "s/${H%${H#???????}}[0-9a-f]*/<COMMIT-H>/g" \
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-e "s/${I%${I#???????}}[0-9a-f]*/<COMMIT-I>/g" \
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-e "s/${J%${J#???????}}[0-9a-f]*/<COMMIT-J>/g" \
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-e "s/${K%${K#???????}}[0-9a-f]*/<COMMIT-K>/g" \
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-e "s/${L%${L#???????}}[0-9a-f]*/<COMMIT-L>/g" \
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-e "s/${M%${M#???????}}[0-9a-f]*/<COMMIT-M>/g" \
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-e "s/${N%${N#???????}}[0-9a-f]*/<COMMIT-N>/g" \
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-e "s/${O%${O#???????}}[0-9a-f]*/<COMMIT-O>/g" \
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-e "s/${P%${P#???????}}[0-9a-f]*/<COMMIT-P>/g" \
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-e "s/${TAG1%${TAG1#???????}}[0-9a-f]*/<TAG-1>/g" \
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-e "s/${TAG2%${TAG2#???????}}[0-9a-f]*/<TAG-2>/g" \
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-e "s/${TAG3%${TAG3#???????}}[0-9a-f]*/<TAG-3>/g" \
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-e "s/ *\$//"
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}
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# (C) (D, pull/1/head, topic/1)
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# o --- o
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# / \ (L)
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# / \ o (H, topic/2) (M, tag:v2)
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# / (F) \ / (N, tag:v3)
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# / o --------- o (G, pull/2/head) o --- o --- o (release)
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# / / \ \ / \
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# o --- o --- o -------- o -- o ------------------ o ------- o --- o (main)
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# (A) (B) (E, tag:v1) (I) (J) (K) (O) (P)
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#
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test_expect_success 'setup' '
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# Try to make a stable fixed width for abbreviated commit ID,
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# this fixed-width oid will be replaced with "<OID>".
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git config core.abbrev 7 &&
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# branch main: commit A & B
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test_commit_setvar A "Commit A" main.txt &&
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test_commit_setvar B "Commit B" main.txt &&
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# branch topic/1: commit C & D, refs/pull/1/head
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git checkout -b topic/1 &&
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test_commit_setvar C "Commit C" topic-1.txt &&
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test_commit_setvar D "Commit D" topic-1.txt &&
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git update-ref refs/pull/1/head HEAD &&
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# branch topic/1: commit E, tag v1
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git checkout main &&
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test_commit_setvar E "Commit E" main.txt &&
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test_commit_setvar --tag TAG1 v1 &&
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# branch topic/2: commit F & G, refs/pull/2/head
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git checkout -b topic/2 &&
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test_commit_setvar F "Commit F" topic-2.txt &&
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test_commit_setvar G "Commit G" topic-2.txt &&
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git update-ref refs/pull/2/head HEAD &&
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test_commit_setvar H "Commit H" topic-2.txt &&
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# branch main: merge commit I & J
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git checkout main &&
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test_commit_setvar --merge I topic/1 "Merge commit I" &&
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test_commit_setvar --merge J refs/pull/2/head "Merge commit J" &&
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# branch main: commit K
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git checkout main &&
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test_commit_setvar K "Commit K" main.txt &&
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# branch release:
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git checkout -b release &&
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test_commit_setvar L "Commit L" release.txt &&
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test_commit_setvar M "Commit M" release.txt &&
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test_commit_setvar --tag TAG2 v2 &&
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test_commit_setvar N "Commit N" release.txt &&
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test_commit_setvar --tag TAG3 v3 &&
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# branch main: merge commit O, commit P
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git checkout main &&
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test_commit_setvar --merge O tags/v2 "Merge commit O" &&
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test_commit_setvar P "Commit P" main.txt
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'
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test_expect_success 'create bundle from special rev: main^!' '
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git bundle create special-rev.bdl "main^!" &&
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git bundle list-heads special-rev.bdl |
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make_user_friendly_and_stable_output >actual &&
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cat >expect <<-\EOF &&
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<COMMIT-P> refs/heads/main
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EOF
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test_i18ncmp expect actual &&
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git bundle verify special-rev.bdl |
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make_user_friendly_and_stable_output >actual &&
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cat >expect <<-\EOF &&
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The bundle contains this ref:
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<COMMIT-P> refs/heads/main
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The bundle requires this ref:
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<COMMIT-O>
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EOF
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test_i18ncmp expect actual &&
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test_bundle_object_count special-rev.bdl 3
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'
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test_expect_success 'create bundle with --max-count option' '
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git bundle create max-count.bdl --max-count 1 \
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main \
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"^release" \
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refs/tags/v1 \
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refs/pull/1/head \
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refs/pull/2/head &&
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git bundle verify max-count.bdl |
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make_user_friendly_and_stable_output >actual &&
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cat >expect <<-\EOF &&
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The bundle contains these 2 refs:
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<COMMIT-P> refs/heads/main
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<TAG-1> refs/tags/v1
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The bundle requires this ref:
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<COMMIT-O>
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EOF
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test_i18ncmp expect actual &&
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test_bundle_object_count max-count.bdl 4
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'
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test_expect_success 'create bundle with --since option' '
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git log -1 --pretty="%ad" $M >actual &&
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cat >expect <<-\EOF &&
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Thu Apr 7 15:26:13 2005 -0700
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EOF
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test_cmp expect actual &&
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git bundle create since.bdl \
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--since "Thu Apr 7 15:27:00 2005 -0700" \
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--all &&
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git bundle verify since.bdl |
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make_user_friendly_and_stable_output >actual &&
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cat >expect <<-\EOF &&
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The bundle contains these 5 refs:
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<COMMIT-P> refs/heads/main
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<COMMIT-N> refs/heads/release
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<TAG-2> refs/tags/v2
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<TAG-3> refs/tags/v3
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<COMMIT-P> HEAD
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The bundle requires these 2 refs:
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<COMMIT-M>
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<COMMIT-K>
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EOF
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test_i18ncmp expect actual &&
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test_bundle_object_count --thin since.bdl 13
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'
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test_expect_success 'create bundle 1 - no prerequisites' '
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# create bundle from args
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git bundle create 1.bdl topic/1 topic/2 &&
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# create bundle from stdin
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cat >input <<-\EOF &&
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topic/1
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topic/2
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EOF
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git bundle create stdin-1.bdl --stdin <input &&
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cat >expect <<-\EOF &&
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The bundle contains these 2 refs:
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<COMMIT-D> refs/heads/topic/1
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<COMMIT-H> refs/heads/topic/2
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The bundle records a complete history.
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EOF
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# verify bundle, which has no prerequisites
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git bundle verify 1.bdl |
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make_user_friendly_and_stable_output >actual &&
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test_i18ncmp expect actual &&
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git bundle verify stdin-1.bdl |
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make_user_friendly_and_stable_output >actual &&
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test_i18ncmp expect actual &&
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test_bundle_object_count 1.bdl 24 &&
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test_bundle_object_count stdin-1.bdl 24
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'
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test_expect_success 'create bundle 2 - has prerequisites' '
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# create bundle from args
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git bundle create 2.bdl \
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--ignore-missing \
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^topic/deleted \
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^$D \
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^topic/2 \
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release &&
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# create bundle from stdin
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# input has a non-exist reference: "topic/deleted"
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cat >input <<-EOF &&
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^topic/deleted
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^$D
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^topic/2
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EOF
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git bundle create stdin-2.bdl \
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--ignore-missing \
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--stdin \
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release <input &&
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cat >expect <<-\EOF &&
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The bundle contains this ref:
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<COMMIT-N> refs/heads/release
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The bundle requires these 3 refs:
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<COMMIT-D>
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<COMMIT-E>
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<COMMIT-G>
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EOF
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git bundle verify 2.bdl |
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make_user_friendly_and_stable_output >actual &&
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test_i18ncmp expect actual &&
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git bundle verify stdin-2.bdl |
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make_user_friendly_and_stable_output >actual &&
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test_i18ncmp expect actual &&
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test_bundle_object_count 2.bdl 16 &&
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test_bundle_object_count stdin-2.bdl 16
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'
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test_expect_success 'fail to verify bundle without prerequisites' '
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git init --bare test1.git &&
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cat >expect <<-\EOF &&
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error: Repository lacks these prerequisite commits:
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error: <COMMIT-D>
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error: <COMMIT-E>
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error: <COMMIT-G>
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EOF
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test_must_fail git -C test1.git bundle verify ../2.bdl 2>&1 |
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make_user_friendly_and_stable_output >actual &&
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test_i18ncmp expect actual &&
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test_must_fail git -C test1.git bundle verify ../stdin-2.bdl 2>&1 |
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make_user_friendly_and_stable_output >actual &&
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test_i18ncmp expect actual
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'
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test_expect_success 'create bundle 3 - two refs, same object' '
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# create bundle from args
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git bundle create --version=3 3.bdl \
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^release \
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^topic/1 \
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^topic/2 \
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main \
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HEAD &&
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# create bundle from stdin
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cat >input <<-\EOF &&
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^release
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^topic/1
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^topic/2
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EOF
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git bundle create --version=3 stdin-3.bdl \
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--stdin \
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main HEAD <input &&
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cat >expect <<-\EOF &&
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The bundle contains these 2 refs:
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<COMMIT-P> refs/heads/main
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<COMMIT-P> HEAD
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The bundle requires these 2 refs:
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<COMMIT-M>
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<COMMIT-K>
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EOF
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git bundle verify 3.bdl |
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make_user_friendly_and_stable_output >actual &&
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test_i18ncmp expect actual &&
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git bundle verify stdin-3.bdl |
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make_user_friendly_and_stable_output >actual &&
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test_i18ncmp expect actual &&
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test_bundle_object_count 3.bdl 4 &&
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test_bundle_object_count stdin-3.bdl 4
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'
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test_expect_success 'create bundle 4 - with tags' '
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# create bundle from args
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git bundle create 4.bdl \
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^main \
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^release \
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^topic/1 \
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^topic/2 \
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--all &&
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# create bundle from stdin
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cat >input <<-\EOF &&
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^main
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^release
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^topic/1
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^topic/2
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EOF
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git bundle create stdin-4.bdl \
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--ignore-missing \
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--stdin \
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--all <input &&
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cat >expect <<-\EOF &&
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The bundle contains these 3 refs:
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<TAG-1> refs/tags/v1
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<TAG-2> refs/tags/v2
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<TAG-3> refs/tags/v3
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The bundle records a complete history.
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EOF
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git bundle verify 4.bdl |
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make_user_friendly_and_stable_output >actual &&
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test_i18ncmp expect actual &&
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git bundle verify stdin-4.bdl |
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make_user_friendly_and_stable_output >actual &&
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test_i18ncmp expect actual &&
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test_bundle_object_count 4.bdl 3 &&
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test_bundle_object_count stdin-4.bdl 3
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'
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test_expect_success 'clone from bundle' '
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git clone --mirror 1.bdl mirror.git &&
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git -C mirror.git show-ref |
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make_user_friendly_and_stable_output >actual &&
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cat >expect <<-\EOF &&
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<COMMIT-D> refs/heads/topic/1
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<COMMIT-H> refs/heads/topic/2
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EOF
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test_cmp expect actual &&
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git -C mirror.git fetch ../2.bdl "+refs/*:refs/*" &&
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git -C mirror.git show-ref |
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make_user_friendly_and_stable_output >actual &&
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cat >expect <<-\EOF &&
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<COMMIT-N> refs/heads/release
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<COMMIT-D> refs/heads/topic/1
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<COMMIT-H> refs/heads/topic/2
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EOF
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test_cmp expect actual &&
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git -C mirror.git fetch ../3.bdl "+refs/*:refs/*" &&
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git -C mirror.git show-ref |
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make_user_friendly_and_stable_output >actual &&
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cat >expect <<-\EOF &&
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<COMMIT-P> refs/heads/main
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<COMMIT-N> refs/heads/release
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<COMMIT-D> refs/heads/topic/1
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<COMMIT-H> refs/heads/topic/2
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EOF
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test_cmp expect actual &&
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git -C mirror.git fetch ../4.bdl "+refs/*:refs/*" &&
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git -C mirror.git show-ref |
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make_user_friendly_and_stable_output >actual &&
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cat >expect <<-\EOF &&
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<COMMIT-P> refs/heads/main
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<COMMIT-N> refs/heads/release
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<COMMIT-D> refs/heads/topic/1
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<COMMIT-H> refs/heads/topic/2
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<TAG-1> refs/tags/v1
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<TAG-2> refs/tags/v2
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<TAG-3> refs/tags/v3
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EOF
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test_cmp expect actual
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'
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test_done
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