diff options
Diffstat (limited to 't')
| -rw-r--r-- | t/README | 4 | ||||
| -rw-r--r-- | t/helper/test-read-midx.c | 16 | ||||
| -rw-r--r-- | t/lib-bitmap.sh | 240 | ||||
| -rw-r--r-- | t/perf/lib-bitmap.sh | 69 | ||||
| -rwxr-xr-x | t/perf/p5310-pack-bitmaps.sh | 65 | ||||
| -rwxr-xr-x | t/perf/p5326-multi-pack-bitmaps.sh | 43 | ||||
| -rwxr-xr-x | t/t0410-partial-clone.sh | 12 | ||||
| -rwxr-xr-x | t/t5310-pack-bitmaps.sh | 233 | ||||
| -rwxr-xr-x | t/t5319-multi-pack-index.sh | 63 | ||||
| -rwxr-xr-x | t/t5326-multi-pack-bitmaps.sh | 286 | ||||
| -rwxr-xr-x | t/t7700-repack.sh | 18 |
11 files changed, 753 insertions, 296 deletions
@@ -425,6 +425,10 @@ GIT_TEST_MULTI_PACK_INDEX=<boolean>, when true, forces the multi-pack- index to be written after every 'git repack' command, and overrides the 'core.multiPackIndex' setting to true. +GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=<boolean>, when true, sets the +'--bitmap' option on all invocations of 'git multi-pack-index write', +and ignores pack-objects' '--write-bitmap-index'. + GIT_TEST_SIDEBAND_ALL=<boolean>, when true, overrides the 'uploadpack.allowSidebandAll' setting to true, and when false, forces fetch-pack to not request sideband-all (even if the server advertises diff --git a/t/helper/test-read-midx.c b/t/helper/test-read-midx.c index 7c2eb11a8e..cb0d27049a 100644 --- a/t/helper/test-read-midx.c +++ b/t/helper/test-read-midx.c @@ -60,12 +60,26 @@ static int read_midx_file(const char *object_dir, int show_objects) return 0; } +static int read_midx_checksum(const char *object_dir) +{ + struct multi_pack_index *m; + + setup_git_directory(); + m = load_multi_pack_index(object_dir, 1); + if (!m) + return 1; + printf("%s\n", hash_to_hex(get_midx_checksum(m))); + return 0; +} + int cmd__read_midx(int argc, const char **argv) { if (!(argc == 2 || argc == 3)) - usage("read-midx [--show-objects] <object-dir>"); + usage("read-midx [--show-objects|--checksum] <object-dir>"); if (!strcmp(argv[1], "--show-objects")) return read_midx_file(argv[2], 1); + else if (!strcmp(argv[1], "--checksum")) + return read_midx_checksum(argv[2]); return read_midx_file(argv[1], 0); } diff --git a/t/lib-bitmap.sh b/t/lib-bitmap.sh index fe3f98be24..21d0392dda 100644 --- a/t/lib-bitmap.sh +++ b/t/lib-bitmap.sh @@ -1,3 +1,6 @@ +# Helpers for scripts testing bitmap functionality; see t5310 for +# example usage. + # Compare a file containing rev-list bitmap traversal output to its non-bitmap # counterpart. You can't just use test_cmp for this, because the two produce # subtly different output: @@ -24,3 +27,240 @@ test_bitmap_traversal () { test_cmp "$1.normalized" "$2.normalized" && rm -f "$1.normalized" "$2.normalized" } + +# To ensure the logic for "maximal commits" is exercised, make +# the repository a bit more complicated. +# +# other second +# * * +# (99 commits) (99 commits) +# * * +# |\ /| +# | * octo-other octo-second * | +# |/|\_________ ____________/|\| +# | \ \/ __________/ | +# | | ________/\ / | +# * |/ * merge-right * +# | _|__________/ \____________ | +# |/ | \| +# (l1) * * merge-left * (r1) +# | / \________________________ | +# |/ \| +# (l2) * * (r2) +# \___________________________ | +# \| +# * (base) +# +# We only push bits down the first-parent history, which +# makes some of these commits unimportant! +# +# The important part for the maximal commit algorithm is how +# the bitmasks are extended. Assuming starting bit positions +# for second (bit 0) and other (bit 1), the bitmasks at the +# end should be: +# +# second: 1 (maximal, selected) +# other: 01 (maximal, selected) +# (base): 11 (maximal) +# +# This complicated history was important for a previous +# version of the walk that guarantees never walking a +# commit multiple times. That goal might be important +# again, so preserve this complicated case. For now, this +# test will guarantee that the bitmaps are computed +# correctly, even with the repeat calculations. +setup_bitmap_history() { + test_expect_success 'setup repo with moderate-sized history' ' + test_commit_bulk --id=file 10 && + git branch -M second && + git checkout -b other HEAD~5 && + test_commit_bulk --id=side 10 && + + # add complicated history setup, including merges and + # ambiguous merge-bases + + git checkout -b merge-left other~2 && + git merge second~2 -m "merge-left" && + + git checkout -b merge-right second~1 && + git merge other~1 -m "merge-right" && + + git checkout -b octo-second second && + git merge merge-left merge-right -m "octopus-second" && + + git checkout -b octo-other other && + git merge merge-left merge-right -m "octopus-other" && + + git checkout other && + git merge octo-other -m "pull octopus" && + + git checkout second && + git merge octo-second -m "pull octopus" && + + # Remove these branches so they are not selected + # as bitmap tips + git branch -D merge-left && + git branch -D merge-right && + git branch -D octo-other && + git branch -D octo-second && + + # add padding to make these merges less interesting + # and avoid having them selected for bitmaps + test_commit_bulk --id=file 100 && + git checkout other && + test_commit_bulk --id=side 100 && + git checkout second && + + bitmaptip=$(git rev-parse second) && + blob=$(echo tagged-blob | git hash-object -w --stdin) && + git tag tagged-blob $blob + ' +} + +rev_list_tests_head () { + test_expect_success "counting commits via bitmap ($state, $branch)" ' + git rev-list --count $branch >expect && + git rev-list --use-bitmap-index --count $branch >actual && + test_cmp expect actual + ' + + test_expect_success "counting partial commits via bitmap ($state, $branch)" ' + git rev-list --count $branch~5..$branch >expect && + git rev-list --use-bitmap-index --count $branch~5..$branch >actual && + test_cmp expect actual + ' + + test_expect_success "counting commits with limit ($state, $branch)" ' + git rev-list --count -n 1 $branch >expect && + git rev-list --use-bitmap-index --count -n 1 $branch >actual && + test_cmp expect actual + ' + + test_expect_success "counting non-linear history ($state, $branch)" ' + git rev-list --count other...second >expect && + git rev-list --use-bitmap-index --count other...second >actual && + test_cmp expect actual + ' + + test_expect_success "counting commits with limiting ($state, $branch)" ' + git rev-list --count $branch -- 1.t >expect && + git rev-list --use-bitmap-index --count $branch -- 1.t >actual && + test_cmp expect actual + ' + + test_expect_success "counting objects via bitmap ($state, $branch)" ' + git rev-list --count --objects $branch >expect && + git rev-list --use-bitmap-index --count --objects $branch >actual && + test_cmp expect actual + ' + + test_expect_success "enumerate commits ($state, $branch)" ' + git rev-list --use-bitmap-index $branch >actual && + git rev-list $branch >expect && + test_bitmap_traversal --no-confirm-bitmaps expect actual + ' + + test_expect_success "enumerate --objects ($state, $branch)" ' + git rev-list --objects --use-bitmap-index $branch >actual && + git rev-list --objects $branch >expect && + test_bitmap_traversal expect actual + ' + + test_expect_success "bitmap --objects handles non-commit objects ($state, $branch)" ' + git rev-list --objects --use-bitmap-index $branch tagged-blob >actual && + grep $blob actual + ' +} + +rev_list_tests () { + state=$1 + + for branch in "second" "other" + do + rev_list_tests_head + done +} + +basic_bitmap_tests () { + tip="$1" + test_expect_success 'rev-list --test-bitmap verifies bitmaps' " + git rev-list --test-bitmap "${tip:-HEAD}" + " + + rev_list_tests 'full bitmap' + + test_expect_success 'clone from bitmapped repository' ' + rm -fr clone.git && + git clone --no-local --bare . clone.git && + git rev-parse HEAD >expect && + git --git-dir=clone.git rev-parse HEAD >actual && + test_cmp expect actual + ' + + test_expect_success 'partial clone from bitmapped repository' ' + test_config uploadpack.allowfilter true && + rm -fr partial-clone.git && + git clone --no-local --bare --filter=blob:none . partial-clone.git && + ( + cd partial-clone.git && + pack=$(echo objects/pack/*.pack) && + git verify-pack -v "$pack" >have && + awk "/blob/ { print \$1 }" <have >blobs && + # we expect this single blob because of the direct ref + git rev-parse refs/tags/tagged-blob >expect && + test_cmp expect blobs + ) + ' + + test_expect_success 'setup further non-bitmapped commits' ' + test_commit_bulk --id=further 10 + ' + + rev_list_tests 'partial bitmap' + + test_expect_success 'fetch (partial bitmap)' ' + git --git-dir=clone.git fetch origin second:second && + git rev-parse HEAD >expect && + git --git-dir=clone.git rev-parse HEAD >actual && + test_cmp expect actual + ' + + test_expect_success 'enumerating progress counts pack-reused objects' ' + count=$(git rev-list --objects --all --count) && + git repack -adb && + + # check first with only reused objects; confirm that our + # progress showed the right number, and also that we did + # pack-reuse as expected. Check only the final "done" + # line of the meter (there may be an arbitrary number of + # intermediate lines ending with CR). + GIT_PROGRESS_DELAY=0 \ + git pack-objects --all --stdout --progress \ + </dev/null >/dev/null 2>stderr && + grep "Enumerating objects: $count, done" stderr && + grep "pack-reused $count" stderr && + + # now the same but with one non-reused object + git commit --allow-empty -m "an extra commit object" && + GIT_PROGRESS_DELAY=0 \ + git pack-objects --all --stdout --progress \ + </dev/null >/dev/null 2>stderr && + grep "Enumerating objects: $((count+1)), done" stderr && + grep "pack-reused $count" stderr + ' +} + +# have_delta <obj> <expected_base> +# +# Note that because this relies on cat-file, it might find _any_ copy of an +# object in the repository. The caller is responsible for making sure +# there's only one (e.g., via "repack -ad", or having just fetched a copy). +have_delta () { + echo $2 >expect && + echo $1 | git cat-file --batch-check="%(deltabase)" >actual && + test_cmp expect actual +} + +midx_checksum () { + test-tool read-midx --checksum "$1" +} diff --git a/t/perf/lib-bitmap.sh b/t/perf/lib-bitmap.sh new file mode 100644 index 0000000000..63d3bc7cec --- /dev/null +++ b/t/perf/lib-bitmap.sh @@ -0,0 +1,69 @@ +# Helper functions for testing bitmap performance; see p5310. + +test_full_bitmap () { + test_perf 'simulated clone' ' + git pack-objects --stdout --all </dev/null >/dev/null + ' + + test_perf 'simulated fetch' ' + have=$(git rev-list HEAD~100 -1) && + { + echo HEAD && + echo ^$have + } | git pack-objects --revs --stdout >/dev/null + ' + + test_perf 'pack to file (bitmap)' ' + git pack-objects --use-bitmap-index --all pack1b </dev/null >/dev/null + ' + + test_perf 'rev-list (commits)' ' + git rev-list --all --use-bitmap-index >/dev/null + ' + + test_perf 'rev-list (objects)' ' + git rev-list --all --use-bitmap-index --objects >/dev/null + ' + + test_perf 'rev-list with tag negated via --not --all (objects)' ' + git rev-list perf-tag --not --all --use-bitmap-index --objects >/dev/null + ' + + test_perf 'rev-list with negative tag (objects)' ' + git rev-list HEAD --not perf-tag --use-bitmap-index --objects >/dev/null + ' + + test_perf 'rev-list count with blob:none' ' + git rev-list --use-bitmap-index --count --objects --all \ + --filter=blob:none >/dev/null + ' + + test_perf 'rev-list count with blob:limit=1k' ' + git rev-list --use-bitmap-index --count --objects --all \ + --filter=blob:limit=1k >/dev/null + ' + + test_perf 'rev-list count with tree:0' ' + git rev-list --use-bitmap-index --count --objects --all \ + --filter=tree:0 >/dev/null + ' + + test_perf 'simulated partial clone' ' + git pack-objects --stdout --all --filter=blob:none </dev/null >/dev/null + ' +} + +test_partial_bitmap () { + test_perf 'clone (partial bitmap)' ' + git pack-objects --stdout --all </dev/null >/dev/null + ' + + test_perf 'pack to file (partial bitmap)' ' + git pack-objects --use-bitmap-index --all pack2b </dev/null >/dev/null + ' + + test_perf 'rev-list with tree filter (partial bitmap)' ' + git rev-list --use-bitmap-index --count --objects --all \ + --filter=tree:0 >/dev/null + ' +} diff --git a/t/perf/p5310-pack-bitmaps.sh b/t/perf/p5310-pack-bitmaps.sh index 452be01056..7ad4f237bc 100755 --- a/t/perf/p5310-pack-bitmaps.sh +++ b/t/perf/p5310-pack-bitmaps.sh @@ -2,6 +2,7 @@ test_description='Tests pack performance using bitmaps' . ./perf-lib.sh +. "${TEST_DIRECTORY}/perf/lib-bitmap.sh" test_perf_large_repo @@ -25,56 +26,7 @@ test_perf 'repack to disk' ' git repack -ad ' -test_perf 'simulated clone' ' - git pack-objects --stdout --all </dev/null >/dev/null -' - -test_perf 'simulated fetch' ' - have=$(git rev-list HEAD~100 -1) && - { - echo HEAD && - echo ^$have - } | git pack-objects --revs --stdout >/dev/null -' - -test_perf 'pack to file (bitmap)' ' - git pack-objects --use-bitmap-index --all pack1b </dev/null >/dev/null -' - -test_perf 'rev-list (commits)' ' - git rev-list --all --use-bitmap-index >/dev/null -' - -test_perf 'rev-list (objects)' ' - git rev-list --all --use-bitmap-index --objects >/dev/null -' - -test_perf 'rev-list with tag negated via --not --all (objects)' ' - git rev-list perf-tag --not --all --use-bitmap-index --objects >/dev/null -' - -test_perf 'rev-list with negative tag (objects)' ' - git rev-list HEAD --not perf-tag --use-bitmap-index --objects >/dev/null -' - -test_perf 'rev-list count with blob:none' ' - git rev-list --use-bitmap-index --count --objects --all \ - --filter=blob:none >/dev/null -' - -test_perf 'rev-list count with blob:limit=1k' ' - git rev-list --use-bitmap-index --count --objects --all \ - --filter=blob:limit=1k >/dev/null -' - -test_perf 'rev-list count with tree:0' ' - git rev-list --use-bitmap-index --count --objects --all \ - --filter=tree:0 >/dev/null -' - -test_perf 'simulated partial clone' ' - git pack-objects --stdout --all --filter=blob:none </dev/null >/dev/null -' +test_full_bitmap test_expect_success 'create partial bitmap state' ' # pick a commit to represent the repo tip in the past @@ -97,17 +49,6 @@ test_expect_success 'create partial bitmap state' ' git update-ref HEAD $orig_tip ' -test_perf 'clone (partial bitmap)' ' - git pack-objects --stdout --all </dev/null >/dev/null -' - -test_perf 'pack to file (partial bitmap)' ' - git pack-objects --use-bitmap-index --all pack2b </dev/null >/dev/null -' - -test_perf 'rev-list with tree filter (partial bitmap)' ' - git rev-list --use-bitmap-index --count --objects --all \ - --filter=tree:0 >/dev/null -' +test_partial_bitmap test_done diff --git a/t/perf/p5326-multi-pack-bitmaps.sh b/t/perf/p5326-multi-pack-bitmaps.sh new file mode 100755 index 0000000000..5845109ac7 --- /dev/null +++ b/t/perf/p5326-multi-pack-bitmaps.sh @@ -0,0 +1,43 @@ +#!/bin/sh + +test_description='Tests performance using midx bitmaps' +. ./perf-lib.sh +. "${TEST_DIRECTORY}/perf/lib-bitmap.sh" + +test_perf_large_repo + +test_expect_success 'enable multi-pack index' ' + git config core.multiPackIndex true +' + +test_perf 'setup multi-pack index' ' + git repack -ad && + git multi-pack-index write --bitmap +' + +test_full_bitmap + +test_expect_success 'create partial bitmap state' ' + # pick a commit to represent the repo tip in the past + cutoff=$(git rev-list HEAD~100 -1) && + orig_tip=$(git rev-parse HEAD) && + + # now pretend we have just one tip + rm -rf .git/logs .git/refs/* .git/packed-refs && + git update-ref HEAD $cutoff && + + # and then repack, which will leave us with a nice + # big bitmap pack of the "old" history, and all of + # the new history will be loose, as if it had been pushed + # up incrementally and exploded via unpack-objects + git repack -Ad && + git multi-pack-index write --bitmap && + + # and now restore our original tip, as if the pushes + # had happened + git update-ref HEAD $orig_tip +' + +test_partial_bitmap + +test_done diff --git a/t/t0410-partial-clone.sh b/t/t0410-partial-clone.sh index a211a66c67..bba679685f 100755 --- a/t/t0410-partial-clone.sh +++ b/t/t0410-partial-clone.sh @@ -4,6 +4,9 @@ test_description='partial clone' . ./test-lib.sh +# missing promisor objects cause repacks which write bitmaps to fail +GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 + delete_object () { rm $1/.git/objects/$(echo $2 | sed -e 's|^..|&/|') } @@ -536,7 +539,13 @@ test_expect_success 'gc does not repack promisor objects if there are none' ' repack_and_check () { rm -rf repo2 && cp -r repo repo2 && - git -C repo2 repack $1 -d && + if test x"$1" = "x--must-fail" + then + shift + test_must_fail git -C repo2 repack $1 -d + else + git -C repo2 repack $1 -d + fi && git -C repo2 fsck && git -C repo2 cat-file -e $2 && @@ -561,6 +570,7 @@ test_expect_success 'repack -d does not irreversibly delete promisor objects' ' printf "$THREE\n" | pack_as_from_promisor && delete_object repo "$ONE" && + repack_and_check --must-fail -ab "$TWO" "$THREE" && repack_and_check -a "$TWO" "$THREE" && repack_and_check -A "$TWO" "$THREE" && repack_and_check -l "$TWO" "$THREE" diff --git a/t/t5310-pack-bitmaps.sh b/t/t5310-pack-bitmaps.sh index b02838750e..673baa5c3c 100755 --- a/t/t5310-pack-bitmaps.sh +++ b/t/t5310-pack-bitmaps.sh @@ -8,6 +8,10 @@ export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME . "$TEST_DIRECTORY"/lib-bundle.sh . "$TEST_DIRECTORY"/lib-bitmap.sh +# t5310 deals only with single-pack bitmaps, so don't write MIDX bitmaps in +# their place. +GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 + objpath () { echo ".git/objects/$(echo "$1" | sed -e 's|\(..\)|\1/|')" } @@ -25,93 +29,10 @@ has_any () { grep -Ff "$1" "$2" } -# To ensure the logic for "maximal commits" is exercised, make -# the repository a bit more complicated. -# -# other second -# * * -# (99 commits) (99 commits) -# * * -# |\ /| -# | * octo-other octo-second * | -# |/|\_________ ____________/|\| -# | \ \/ __________/ | -# | | ________/\ / | -# * |/ * merge-right * -# | _|__________/ \____________ | -# |/ | \| -# (l1) * * merge-left * (r1) -# | / \________________________ | -# |/ \| -# (l2) * * (r2) -# \___________________________ | -# \| -# * (base) -# -# We only push bits down the first-parent history, which -# makes some of these commits unimportant! -# -# The important part for the maximal commit algorithm is how -# the bitmasks are extended. Assuming starting bit positions -# for second (bit 0) and other (bit 1), the bitmasks at the -# end should be: -# -# second: 1 (maximal, selected) -# other: 01 (maximal, selected) -# (base): 11 (maximal) -# -# This complicated history was important for a previous -# version of the walk that guarantees never walking a -# commit multiple times. That goal might be important -# again, so preserve this complicated case. For now, this -# test will guarantee that the bitmaps are computed -# correctly, even with the repeat calculations. - -test_expect_success 'setup repo with moderate-sized history' ' - test_commit_bulk --id=file 10 && - git branch -M second && - git checkout -b other HEAD~5 && - test_commit_bulk --id=side 10 && - - # add complicated history setup, including merges and - # ambiguous merge-bases - - git checkout -b merge-left other~2 && - git merge second~2 -m "merge-left" && - - git checkout -b merge-right second~1 && - git merge other~1 -m "merge-right" && - - git checkout -b octo-second second && - git merge merge-left merge-right -m "octopus-second" && - - git checkout -b octo-other other && - git merge merge-left merge-right -m "octopus-other" && - - git checkout other && - git merge octo-other -m "pull octopus" && - - git checkout second && - git merge octo-second -m "pull octopus" && - - # Remove these branches so they are not selected - # as bitmap tips - git branch -D merge-left && - git branch -D merge-right && - git branch -D octo-other && - git branch -D octo-second && - - # add padding to make these merges less interesting - # and avoid having them selected for bitmaps - test_commit_bulk --id=file 100 && - git checkout other && - test_commit_bulk --id=side 100 && - git checkout second && - - bitmaptip=$(git rev-parse second) && - blob=$(echo tagged-blob | git hash-object -w --stdin) && - git tag tagged-blob $blob && - git config repack.writebitmaps true +setup_bitmap_history + +test_expect_success 'setup writing bitmaps during repack' ' + git config repack.writeBitmaps true ' test_expect_success 'full repack creates bitmaps' ' @@ -123,109 +44,7 @@ test_expect_success 'full repack creates bitmaps' ' grep "\"key\":\"num_maximal_commits\",\"value\":\"107\"" trace ' -test_expect_success 'rev-list --test-bitmap verifies bitmaps' ' - git rev-list --test-bitmap HEAD -' - -rev_list_tests_head () { - test_expect_success "counting commits via bitmap ($state, $branch)" ' - git rev-list --count $branch >expect && - git rev-list --use-bitmap-index --count $branch >actual && - test_cmp expect actual - ' - - test_expect_success "counting partial commits via bitmap ($state, $branch)" ' - git rev-list --count $branch~5..$branch >expect && - git rev-list --use-bitmap-index --count $branch~5..$branch >actual && - test_cmp expect actual - ' - - test_expect_success "counting commits with limit ($state, $branch)" ' - git rev-list --count -n 1 $branch >expect && - git rev-list --use-bitmap-index --count -n 1 $branch >actual && - test_cmp expect actual - ' - - test_expect_success "counting non-linear history ($state, $branch)" ' - git rev-list --count other...second >expect && - git rev-list --use-bitmap-index --count other...second >actual && - test_cmp expect actual - ' - - test_expect_success "counting commits with limiting ($state, $branch)" ' - git rev-list --count $branch -- 1.t >expect && - git rev-list --use-bitmap-index --count $branch -- 1.t >actual && - test_cmp expect actual - ' - - test_expect_success "counting objects via bitmap ($state, $branch)" ' - git rev-list --count --objects $branch >expect && - git rev-list --use-bitmap-index --count --objects $branch >actual && - test_cmp expect actual - ' - - test_expect_success "enumerate commits ($state, $branch)" ' - git rev-list --use-bitmap-index $branch >actual && - git rev-list $branch >expect && - test_bitmap_traversal --no-confirm-bitmaps expect actual - ' - - test_expect_success "enumerate --objects ($state, $branch)" ' - git rev-list --objects --use-bitmap-index $branch >actual && - git rev-list --objects $branch >expect && - test_bitmap_traversal expect actual - ' - - test_expect_success "bitmap --objects handles non-commit objects ($state, $branch)" ' - git rev-list --objects --use-bitmap-index $branch tagged-blob >actual && - grep $blob actual - ' -} - -rev_list_tests () { - state=$1 - - for branch in "second" "other" - do - rev_list_tests_head - done -} - -rev_list_tests 'full bitmap' - -test_expect_success 'clone from bitmapped repository' ' - git clone --no-local --bare . clone.git && - git rev-parse HEAD >expect && - git --git-dir=clone.git rev-parse HEAD >actual && - test_cmp expect actual -' - -test_expect_success 'partial clone from bitmapped repository' ' - test_config uploadpack.allowfilter true && - git clone --no-local --bare --filter=blob:none . partial-clone.git && - ( - cd partial-clone.git && - pack=$(echo objects/pack/*.pack) && - git verify-pack -v "$pack" >have && - awk "/blob/ { print \$1 }" <have >blobs && - # we expect this single blob because of the direct ref - git rev-parse refs/tags/tagged-blob >expect && - test_cmp expect blobs - ) -' - -test_expect_success 'setup further non-bitmapped commits' ' - test_commit_bulk --id=further 10 -' - -rev_list_tests 'partial bitmap' - -test_expect_success 'fetch (partial bitmap)' ' - git --git-dir=clone.git fetch origin second:second && - git rev-parse HEAD >expect && - git --git-dir=clone.git rev-parse HEAD >actual && - test_cmp expect actual -' +basic_bitmap_tests test_expect_success 'incremental repack fails when bitmaps are requested' ' test_commit more-1 && @@ -461,40 +280,6 @@ test_expect_success 'truncated bitmap fails gracefully (cache)' ' test_i18ngrep corrupted.bitmap.index stderr ' -test_expect_success 'enumerating progress counts pack-reused objects' ' - count=$(git rev-list --objects --all --count) && - git repack -adb && - - # check first with only reused objects; confirm that our progress - # showed the right number, and also that we did pack-reuse as expected. - # Check only the final "done" line of the meter (there may be an - # arbitrary number of intermediate lines ending with CR). - GIT_PROGRESS_DELAY=0 \ - git pack-objects --all --stdout --progress \ - </dev/null >/dev/null 2>stderr && - grep "Enumerating objects: $count, done" stderr && - grep "pack-reused $count" stderr && - - # now the same but with one non-reused object - git commit --allow-empty -m "an extra commit object" && - GIT_PROGRESS_DELAY=0 \ - git pack-objects --all --stdout --progress \ - </dev/null >/dev/null 2>stderr && - grep "Enumerating objects: $((count+1)), done" stderr && - grep "pack-reused $count" stderr -' - -# have_delta <obj> <expected_base> -# -# Note that because this relies on cat-file, it might find _any_ copy of an -# object in the repository. The caller is responsible for making sure -# there's only one (e.g., via "repack -ad", or having just fetched a copy). -have_delta () { - echo $2 >expect && - echo $1 | git cat-file --batch-check="%(deltabase)" >actual && - test_cmp expect actual -} - # Create a state of history with these properties: # # - refs that allow a client to fetch some new history, while sharing some old diff --git a/t/t5319-multi-pack-index.sh b/t/t5319-multi-pack-index.sh index 3d4d9f10c3..bb04f0f23b 100755 --- a/t/t5319-multi-pack-index.sh +++ b/t/t5319-multi-pack-index.sh @@ -201,6 +201,34 @@ test_expect_success 'write midx with twelve packs' ' compare_results_with_midx "twelve packs" +test_expect_success 'multi-pack-index *.rev cleanup with --object-dir' ' + git init repo && + git clone -s repo alternate && + + test_when_finished "rm -rf repo alternate" && + + ( + cd repo && + test_commit base && + git repack -d + ) && + + ours="alternate/.git/objects/pack/multi-pack-index-123.rev" && + theirs="repo/.git/objects/pack/multi-pack-index-abc.rev" && + touch "$ours" "$theirs" && + + ( + cd alternate && + git multi-pack-index --object-dir ../repo/.git/objects write + ) && + + # writing a midx in "repo" should not remove the .rev file in the + # alternate + test_path_is_file repo/.git/objects/pack/multi-pack-index && + test_path_is_file $ours && + test_path_is_missing $theirs +' + test_expect_success 'warn on improper hash version' ' git init --object-format=sha1 sha1 && ( @@ -277,6 +305,23 @@ test_expect_success 'midx picks objects from preferred pack' ' ) ' +test_expect_success 'preferred packs must be non-empty' ' + test_when_finished rm -rf preferred.git && + git init preferred.git && + ( + cd preferred.git && + + test_commit base && + git repack -ad && + + empty="$(git pack-objects $objdir/pack/pack </dev/null)" && + + test_must_fail git multi-pack-index write \ + --preferred-pack=pack-$empty.pack 2>err && + grep "with no objects" err + ) +' + test_expect_success 'verify multi-pack-index success' ' git multi-pack-index verify --object-dir=$objdir ' @@ -487,7 +532,8 @@ test_expect_success 'repack preserves multi-pack-index when creating packs' ' compare_results_with_midx "after repack" test_expect_success 'multi-pack-index and pack-bitmap' ' - git -c repack.writeBitmaps=true repack -ad && + GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \ + git -c repack.writeBitmaps=true repack -ad && git multi-pack-index write && git rev-list --test-bitmap HEAD ' @@ -537,7 +583,15 @@ test_expect_success 'force some 64-bit offsets with pack-objects' ' idx64=objects64/pack/test-64-$pack64.idx && chmod u+w $idx64 && corrupt_data $idx64 $(test_oid idxoff) "\02" && - midx64=$(git multi-pack-index --object-dir=objects64 write) && + # objects64 is not a real repository, but can serve as an alternate + # anyway so we can write a MIDX into it + git init repo && + test_when_finished "rm -fr repo" && + ( + cd repo && + ( cd ../objects64 && pwd ) >.git/objects/info/alternates && + midx64=$(git multi-pack-index --object-dir=../objects64 write) + ) && midx_read_expect 1 63 5 objects64 " large-offsets" ' @@ -842,4 +896,9 @@ test_expect_success 'usage shown without sub-command' ' ! test_i18ngrep "unrecognized subcommand" err ' +test_expect_success 'complains when run outside of a repository' ' + nongit test_must_fail git multi-pack-index write 2>err && + grep "not a git repository" err +' + test_done diff --git a/t/t5326-multi-pack-bitmaps.sh b/t/t5326-multi-pack-bitmaps.sh new file mode 100755 index 0000000000..4ad7c2c969 --- /dev/null +++ b/t/t5326-multi-pack-bitmaps.sh @@ -0,0 +1,286 @@ +#!/bin/sh + +test_description='exercise basic multi-pack bitmap functionality' +. ./test-lib.sh +. "${TEST_DIRECTORY}/lib-bitmap.sh" + +# We'll be writing our own midx and bitmaps, so avoid getting confused by the +# automatic ones. +GIT_TEST_MULTI_PACK_INDEX=0 +GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 + +objdir=.git/objects +midx=$objdir/pack/multi-pack-index + +# midx_pack_source <obj> +midx_pack_source () { + test-tool read-midx --show-objects .git/objects | grep "^$1 " | cut -f2 +} + +setup_bitmap_history + +test_expect_success 'enable core.multiPackIndex' ' + git config core.multiPackIndex true +' + +test_expect_success 'create single-pack midx with bitmaps' ' + git repack -ad && + git multi-pack-index write --bitmap && + test_path_is_file $midx && + test_path_is_file $midx-$(midx_checksum $objdir).bitmap && + test_path_is_file $midx-$(midx_checksum $objdir).rev +' + +basic_bitmap_tests + +test_expect_success 'create new additional packs' ' + for i in $(test_seq 1 16) + do + test_commit "$i" && + git repack -d || return 1 + done && + + git checkout -b other2 HEAD~8 && + for i in $(test_seq 1 8) + do + test_commit "side-$i" && + git repack -d || return 1 + done && + git checkout second +' + +test_expect_success 'create multi-pack midx with bitmaps' ' + git multi-pack-index write --bitmap && + + ls $objdir/pack/pack-*.pack >packs && + test_line_count = 25 packs && + + test_path_is_file $midx && + test_path_is_file $midx-$(midx_checksum $objdir).bitmap && + test_path_is_file $midx-$(midx_checksum $objdir).rev +' + +basic_bitmap_tests + +test_expect_success '--no-bitmap is respected when bitmaps exist' ' + git multi-pack-index write --bitmap && + + test_commit respect--no-bitmap && + git repack -d && + + test_path_is_file $midx && + test_path_is_file $midx-$(midx_checksum $objdir).bitmap && + test_path_is_file $midx-$(midx_checksum $objdir).rev && + + git multi-pack-index write --no-bitmap && + + test_path_is_file $midx && + test_path_is_missing $midx-$(midx_checksum $objdir).bitmap && + test_path_is_missing $midx-$(midx_checksum $objdir).rev +' + +test_expect_success 'setup midx with base from later pack' ' + # Write a and b so that "a" is a delta on top of base "b", since Git + # prefers to delete contents out of a base rather than add to a shorter + # object. + test_seq 1 128 >a && + test_seq 1 130 >b && + + git add a b && + git commit -m "initial commit" && + + a=$(git rev-parse HEAD:a) && + b=$(git rev-parse HEAD:b) && + + # In the first pack, "a" is stored as a delta to "b". + p1=$(git pack-objects .git/objects/pack/pack <<-EOF + $a + $b + EOF + ) && + + # In the second pack, "a" is missing, and "b" is not a delta nor base to + # any other object. + p2=$(git pack-objects .git/objects/pack/pack <<-EOF + $b + $(git rev-parse HEAD) + $(git rev-parse HEAD^{tree}) + EOF + ) && + + git prune-packed && + # Use the second pack as the preferred source, so that "b" occurs + # earlier in the MIDX object order, rendering "a" unusable for pack + # reuse. + git multi-pack-index write --bitmap --preferred-pack=pack-$p2.idx && + + have_delta $a $b && + test $(midx_pack_source $a) != $(midx_pack_source $b) +' + +rev_list_tests 'full bitmap with backwards delta' + +test_expect_success 'clone with bitmaps enabled' ' + git clone --no-local --bare . clone-reverse-delta.git && + test_when_finished "rm -fr clone-reverse-delta.git" && + + git rev-parse HEAD >expect && + git --git-dir=clone-reverse-delta.git rev-parse HEAD >actual && + test_cmp expect actual +' + +bitmap_reuse_tests() { + from=$1 + to=$2 + + test_expect_success "setup pack reuse tests ($from -> $to)" ' + rm -fr repo && + git init repo && + ( + cd repo && + test_commit_bulk 16 && + git tag old-tip && + + git config core.multiPackIndex true && + if test "MIDX" = "$from" + then + git repack -Ad && + git multi-pack-index write --bitmap + else + git repack -Adb + fi + ) + ' + + test_expect_success "build bitmap from existing ($from -> $to)" ' + ( + cd repo && + test_commit_bulk --id=further 16 && + git tag new-tip && + + if test "MIDX" = "$to" + then + git repack -d && + git multi-pack-index write --bitmap + else + git repack -Adb + fi + ) + ' + + test_expect_success "verify resulting bitmaps ($from -> $to)" ' + ( + cd repo && + git for-each-ref && + git rev-list --test-bitmap refs/tags/old-tip && + git rev-list --test-bitmap refs/tags/new-tip + ) + ' +} + +bitmap_reuse_tests 'pack' 'MIDX' +bitmap_reuse_tests 'MIDX' 'pack' +bitmap_reuse_tests 'MIDX' 'MIDX' + +test_expect_success 'missing object closure fails gracefully' ' + rm -fr repo && + git init repo && + test_when_finished "rm -fr repo" && + ( + cd repo && + + test_commit loose && + test_commit packed && + + # Do not pass "--revs"; we want a pack without the "loose" + # commit. + git pack-objects $objdir/pack/pack <<-EOF && + $(git rev-parse packed) + EOF + + test_must_fail git multi-pack-index write --bitmap 2>err && + grep "doesn.t have full closure" err && + test_path_is_missing $midx + ) +' + +test_expect_success 'setup partial bitmaps' ' + test_commit packed && + git repack && + test_commit loose && + git multi-pack-index write --bitmap 2>err && + test_path_is_file $midx && + test_path_is_file $midx-$(midx_checksum $objdir).bitmap && + test_path_is_file $midx-$(midx_checksum $objdir).rev +' + +basic_bitmap_tests HEAD~ + +test_expect_success 'removing a MIDX clears stale bitmaps' ' + rm -fr repo && + git init repo && + test_when_finished "rm -fr repo" && + ( + cd repo && + test_commit base && + git repack && + git multi-pack-index write --bitmap && + + # Write a MIDX and bitmap; remove the MIDX but leave the bitmap. + stale_bitmap=$midx-$(midx_checksum $objdir).bitmap && + stale_rev=$midx-$(midx_checksum $objdir).rev && + rm $midx && + + # Then write a new MIDX. + test_commit new && + git repack && + git multi-pack-index write --bitmap && + + test_path_is_file $midx && + test_path_is_file $midx-$(midx_checksum $objdir).bitmap && + test_path_is_file $midx-$(midx_checksum $objdir).rev && + test_path_is_missing $stale_bitmap && + test_path_is_missing $stale_rev + ) +' + +test_expect_success 'pack.preferBitmapTips' ' + git init repo && + test_when_finished "rm -fr repo" && + ( + cd repo && + + test_commit_bulk --message="%s" 103 && + + git log --format="%H" >commits.raw && + sort <commits.raw >commits && + + git log --format="create refs/tags/%s %H" HEAD >refs && + git update-ref --stdin <refs && + + git multi-pack-index write --bitmap && + test_path_is_file $midx && + test_path_is_file $midx-$(midx_checksum $objdir).bitmap && + test_path_is_file $midx-$(midx_checksum $objdir).rev && + + test-tool bitmap list-commits | sort >bitmaps && + comm -13 bitmaps commits >before && + test_line_count = 1 before && + + perl -ne "printf(\"create refs/tags/include/%d \", $.); print" \ + <before | git update-ref --stdin && + + rm -fr $midx-$(midx_checksum $objdir).bitmap && + rm -fr $midx-$(midx_checksum $objdir).rev && + rm -fr $midx && + + git -c pack.preferBitmapTips=refs/tags/include \ + multi-pack-index write --bitmap && + test-tool bitmap list-commits | sort >bitmaps && + comm -13 bitmaps commits >after && + + ! test_cmp before after + ) +' + +test_done diff --git a/t/t7700-repack.sh b/t/t7700-repack.sh index 25b235c063..98eda3bfeb 100755 --- a/t/t7700-repack.sh +++ b/t/t7700-repack.sh @@ -63,13 +63,14 @@ test_expect_success 'objects in packs marked .keep are not repacked' ' test_expect_success 'writing bitmaps via command-line can duplicate .keep objects' ' # build on $oid, $packid, and .keep state from previous - git repack -Adbl && + GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 git repack -Adbl && test_has_duplicate_object true ' test_expect_success 'writing bitmaps via config can duplicate .keep objects' ' # build on $oid, $packid, and .keep state from previous - git -c repack.writebitmaps=true repack -Adl && + GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \ + git -c repack.writebitmaps=true repack -Adl && test_has_duplicate_object true ' @@ -189,7 +190,9 @@ test_expect_success 'repack --keep-pack' ' test_expect_success 'bitmaps are created by default in bare repos' ' git clone --bare .git bare.git && - git -C bare.git repack -ad && + rm -f bare.git/objects/pack/*.bitmap && + GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \ + git -C bare.git repack -ad && bitmap=$(ls bare.git/objects/pack/*.bitmap) && test_path_is_file "$bitmap" ' @@ -200,7 +203,8 @@ test_expect_success 'incremental repack does not complain' ' ' test_expect_success 'bitmaps can be disabled on bare repos' ' - git -c repack.writeBitmaps=false -C bare.git repack -ad && + GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \ + git -c repack.writeBitmaps=false -C bare.git repack -ad && bitmap=$(ls bare.git/objects/pack/*.bitmap || :) && test -z "$bitmap" ' @@ -211,7 +215,8 @@ test_expect_success 'no bitmaps created if .keep files present' ' keep=${pack%.pack}.keep && test_when_finished "rm -f \"\$keep\"" && >"$keep" && - git -C bare.git repack -ad 2>stderr && + GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \ + git -C bare.git repack -ad 2>stderr && test_must_be_empty stderr && find bare.git/objects/pack/ -type f -name "*.bitmap" >actual && test_must_be_empty actual @@ -222,7 +227,8 @@ test_expect_success 'auto-bitmaps do not complain if unavailable' ' blob=$(test-tool genrandom big $((1024*1024)) | git -C bare.git hash-object -w --stdin) && git -C bare.git update-ref refs/tags/big $blob && - git -C bare.git repack -ad 2>stderr && + GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \ + git -C bare.git repack -ad 2>stderr && test_must_be_empty stderr && find bare.git/objects/pack -type f -name "*.bitmap" >actual && test_must_be_empty actual |