summaryrefslogtreecommitdiff
path: root/t/t0613-reftable-write-options.sh
diff options
context:
space:
mode:
Diffstat (limited to 't/t0613-reftable-write-options.sh')
-rwxr-xr-xt/t0613-reftable-write-options.sh279
1 files changed, 279 insertions, 0 deletions
diff --git a/t/t0613-reftable-write-options.sh b/t/t0613-reftable-write-options.sh
new file mode 100755
index 0000000000..d77e601111
--- /dev/null
+++ b/t/t0613-reftable-write-options.sh
@@ -0,0 +1,279 @@
+#!/bin/sh
+
+test_description='reftable write options'
+
+GIT_TEST_DEFAULT_REF_FORMAT=reftable
+export GIT_TEST_DEFAULT_REF_FORMAT
+# Disable auto-compaction for all tests as we explicitly control repacking of
+# refs.
+GIT_TEST_REFTABLE_AUTOCOMPACTION=false
+export GIT_TEST_REFTABLE_AUTOCOMPACTION
+# Block sizes depend on the hash function, so we force SHA1 here.
+GIT_TEST_DEFAULT_HASH=sha1
+export GIT_TEST_DEFAULT_HASH
+# Block sizes also depend on the actual refs we write, so we force "master" to
+# be the default initial branch name.
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+test_expect_success 'default write options' '
+ test_when_finished "rm -rf repo" &&
+ git init repo &&
+ (
+ cd repo &&
+ test_commit initial &&
+ git pack-refs &&
+ cat >expect <<-EOF &&
+ header:
+ block_size: 4096
+ ref:
+ - length: 129
+ restarts: 2
+ log:
+ - length: 262
+ restarts: 2
+ EOF
+ test-tool dump-reftable -b .git/reftable/*.ref >actual &&
+ test_cmp expect actual
+ )
+'
+
+test_expect_success 'disabled reflog writes no log blocks' '
+ test_config_global core.logAllRefUpdates false &&
+ test_when_finished "rm -rf repo" &&
+ git init repo &&
+ (
+ cd repo &&
+ test_commit initial &&
+ git pack-refs &&
+ cat >expect <<-EOF &&
+ header:
+ block_size: 4096
+ ref:
+ - length: 129
+ restarts: 2
+ EOF
+ test-tool dump-reftable -b .git/reftable/*.ref >actual &&
+ test_cmp expect actual
+ )
+'
+
+test_expect_success 'many refs results in multiple blocks' '
+ test_when_finished "rm -rf repo" &&
+ git init repo &&
+ (
+ cd repo &&
+ test_commit initial &&
+ test_seq -f "update refs/heads/branch-%d HEAD" 200 >input &&
+ git update-ref --stdin <input &&
+ git pack-refs &&
+
+ cat >expect <<-EOF &&
+ header:
+ block_size: 4096
+ ref:
+ - length: 4049
+ restarts: 11
+ - length: 1136
+ restarts: 3
+ log:
+ - length: 4041
+ restarts: 4
+ - length: 4015
+ restarts: 3
+ - length: 4014
+ restarts: 3
+ - length: 4012
+ restarts: 3
+ - length: 3289
+ restarts: 3
+ idx:
+ - length: 103
+ restarts: 1
+ EOF
+ test-tool dump-reftable -b .git/reftable/*.ref >actual &&
+ test_cmp expect actual
+ )
+'
+
+test_expect_success 'tiny block size leads to error' '
+ test_when_finished "rm -rf repo" &&
+ git init repo &&
+ (
+ cd repo &&
+ test_commit initial &&
+ cat >expect <<-EOF &&
+ error: unable to compact stack: entry too large
+ EOF
+ test_must_fail git -c reftable.blockSize=50 pack-refs 2>err &&
+ test_cmp expect err
+ )
+'
+
+test_expect_success 'small block size leads to multiple ref blocks' '
+ test_config_global core.logAllRefUpdates false &&
+ test_when_finished "rm -rf repo" &&
+ git init repo &&
+ (
+ cd repo &&
+ test_commit A &&
+ test_commit B &&
+ git -c reftable.blockSize=100 pack-refs &&
+
+ cat >expect <<-EOF &&
+ header:
+ block_size: 100
+ ref:
+ - length: 53
+ restarts: 1
+ - length: 74
+ restarts: 1
+ - length: 38
+ restarts: 1
+ EOF
+ test-tool dump-reftable -b .git/reftable/*.ref >actual &&
+ test_cmp expect actual
+ )
+'
+
+test_expect_success 'small block size fails with large reflog message' '
+ test_when_finished "rm -rf repo" &&
+ git init repo &&
+ (
+ cd repo &&
+ test_commit A &&
+ test-tool genzeros 500 | tr "\000" "a" >logmsg &&
+ cat >expect <<-EOF &&
+ fatal: update_ref failed for ref ${SQ}refs/heads/logme${SQ}: reftable: transaction failure: entry too large
+ EOF
+ test_must_fail git -c reftable.blockSize=100 \
+ update-ref -m "$(cat logmsg)" refs/heads/logme HEAD 2>err &&
+ test_cmp expect err
+ )
+'
+
+test_expect_success 'block size exceeding maximum supported size' '
+ test_config_global core.logAllRefUpdates false &&
+ test_when_finished "rm -rf repo" &&
+ git init repo &&
+ (
+ cd repo &&
+ test_commit A &&
+ test_commit B &&
+ cat >expect <<-EOF &&
+ fatal: reftable block size cannot exceed 16MB
+ EOF
+ test_must_fail git -c reftable.blockSize=16777216 pack-refs 2>err &&
+ test_cmp expect err
+ )
+'
+
+test_expect_success 'restart interval at every single record' '
+ test_when_finished "rm -rf repo" &&
+ git init repo &&
+ (
+ cd repo &&
+ test_commit initial &&
+ test_seq -f "update refs/heads/branch-%d HEAD" 10 >input &&
+ git update-ref --stdin <input &&
+ git -c reftable.restartInterval=1 pack-refs &&
+
+ cat >expect <<-EOF &&
+ header:
+ block_size: 4096
+ ref:
+ - length: 566
+ restarts: 13
+ log:
+ - length: 1393
+ restarts: 12
+ EOF
+ test-tool dump-reftable -b .git/reftable/*.ref >actual &&
+ test_cmp expect actual
+ )
+'
+
+test_expect_success 'restart interval exceeding maximum supported interval' '
+ test_when_finished "rm -rf repo" &&
+ git init repo &&
+ (
+ cd repo &&
+ test_commit initial &&
+ cat >expect <<-EOF &&
+ fatal: reftable block size cannot exceed 65535
+ EOF
+ test_must_fail git -c reftable.restartInterval=65536 pack-refs 2>err &&
+ test_cmp expect err
+ )
+'
+
+test_expect_success 'object index gets written by default with ref index' '
+ test_config_global core.logAllRefUpdates false &&
+ test_when_finished "rm -rf repo" &&
+ git init repo &&
+ (
+ cd repo &&
+ test_commit initial &&
+ test_seq -f "update refs/heads/branch-%d HEAD" 5 >input &&
+ git update-ref --stdin <input &&
+ git -c reftable.blockSize=100 pack-refs &&
+
+ cat >expect <<-EOF &&
+ header:
+ block_size: 100
+ ref:
+ - length: 53
+ restarts: 1
+ - length: 95
+ restarts: 1
+ - length: 71
+ restarts: 1
+ - length: 80
+ restarts: 1
+ idx:
+ - length: 55
+ restarts: 2
+ obj:
+ - length: 11
+ restarts: 1
+ EOF
+ test-tool dump-reftable -b .git/reftable/*.ref >actual &&
+ test_cmp expect actual
+ )
+'
+
+test_expect_success 'object index can be disabled' '
+ test_config_global core.logAllRefUpdates false &&
+ test_when_finished "rm -rf repo" &&
+ git init repo &&
+ (
+ cd repo &&
+ test_commit initial &&
+ test_seq -f "update refs/heads/branch-%d HEAD" 5 >input &&
+ git update-ref --stdin <input &&
+ git -c reftable.blockSize=100 -c reftable.indexObjects=false pack-refs &&
+
+ cat >expect <<-EOF &&
+ header:
+ block_size: 100
+ ref:
+ - length: 53
+ restarts: 1
+ - length: 95
+ restarts: 1
+ - length: 71
+ restarts: 1
+ - length: 80
+ restarts: 1
+ idx:
+ - length: 55
+ restarts: 2
+ EOF
+ test-tool dump-reftable -b .git/reftable/*.ref >actual &&
+ test_cmp expect actual
+ )
+'
+
+test_done
generated by cgit v1.2.3 (git 2.46.0) at 2025-08-06 00:15:04 +0000