t/t4216-log-bloom.sh

   1 #!/bin/sh
   2
   3 test_description='git log for a path with Bloom filters'
   4 . ./test-lib.sh
   5
   6 GIT_TEST_COMMIT_GRAPH=0
   7 GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS=0
   8
   9 test_expect_success 'setup test - repo, commits, commit graph, log outputs' '
  10         git init &&
  11         mkdir A A/B A/B/C &&
  12         test_commit c1 A/file1 &&
  13         test_commit c2 A/B/file2 &&
  14         test_commit c3 A/B/C/file3 &&
  15         test_commit c4 A/file1 &&
  16         test_commit c5 A/B/file2 &&
  17         test_commit c6 A/B/C/file3 &&
  18         test_commit c7 A/file1 &&
  19         test_commit c8 A/B/file2 &&
  20         test_commit c9 A/B/C/file3 &&
  21         test_commit c10 file_to_be_deleted &&
  22         git checkout -b side HEAD~4 &&
  23         test_commit side-1 file4 &&
  24         git checkout master &&
  25         git merge side &&
  26         test_commit c11 file5 &&
  27         mv file5 file5_renamed &&
  28         git add file5_renamed &&
  29         git commit -m "rename" &&
  30         rm file_to_be_deleted &&
  31         git add . &&
  32         git commit -m "file removed" &&
  33         git commit-graph write --reachable --changed-paths
  34 '
  35 graph_read_expect () {
  36         NUM_CHUNKS=5
  37         cat >expect <<- EOF
  38         header: 43475048 1 1 $NUM_CHUNKS 0
  39         num_commits: $1
  40         chunks: oid_fanout oid_lookup commit_metadata bloom_indexes bloom_data
  41         EOF
  42         test-tool read-graph >actual &&
  43         test_cmp expect actual
  44 }
  45
  46 test_expect_success 'commit-graph write wrote out the bloom chunks' '
  47         graph_read_expect 15
  48 '
  49
  50 # Turn off any inherited trace2 settings for this test.
  51 sane_unset GIT_TRACE2 GIT_TRACE2_PERF GIT_TRACE2_EVENT
  52 sane_unset GIT_TRACE2_PERF_BRIEF
  53 sane_unset GIT_TRACE2_CONFIG_PARAMS
  54
  55 setup () {
  56         rm "$TRASH_DIRECTORY/trace.perf"
  57         git -c core.commitGraph=false log --pretty="format:%s" $1 >log_wo_bloom &&
  58         GIT_TRACE2_PERF="$TRASH_DIRECTORY/trace.perf" git -c core.commitGraph=true log --pretty="format:%s" $1 >log_w_bloom
  59 }
  60
  61 test_bloom_filters_used () {
  62         log_args=$1
  63         bloom_trace_prefix="statistics:{\"filter_not_present\":0,\"zero_length_filter\":0,\"maybe\""
  64         setup "$log_args" &&
  65         grep -q "$bloom_trace_prefix" "$TRASH_DIRECTORY/trace.perf" &&
  66         test_cmp log_wo_bloom log_w_bloom &&
  67     test_path_is_file "$TRASH_DIRECTORY/trace.perf"
  68 }
  69
  70 test_bloom_filters_not_used () {
  71         log_args=$1
  72         setup "$log_args" &&
  73         ! grep -q "statistics:{\"filter_not_present\":" "$TRASH_DIRECTORY/trace.perf" &&
  74         test_cmp log_wo_bloom log_w_bloom
  75 }
  76
  77 for path in A A/B A/B/C A/file1 A/B/file2 A/B/C/file3 file4 file5 file5_renamed file_to_be_deleted
  78 do
  79         for option in "" \
  80               "--all" \
  81                       "--full-history" \
  82                       "--full-history --simplify-merges" \
  83                       "--simplify-merges" \
  84                       "--simplify-by-decoration" \
  85                       "--follow" \
  86                       "--first-parent" \
  87                       "--topo-order" \
  88                       "--date-order" \
  89                       "--author-date-order" \
  90                       "--ancestry-path side..master"
  91         do
  92                 test_expect_success "git log option: $option for path: $path" '
  93                         test_bloom_filters_used "$option -- $path"
  94                 '
  95         done
  96 done
  97
  98 test_expect_success 'git log -- folder works with and without the trailing slash' '
  99         test_bloom_filters_used "-- A" &&
 100         test_bloom_filters_used "-- A/"
 101 '
 102
 103 test_expect_success 'git log for path that does not exist. ' '
 104         test_bloom_filters_used "-- path_does_not_exist"
 105 '
 106
 107 test_expect_success 'git log with --walk-reflogs does not use Bloom filters' '
 108         test_bloom_filters_not_used "--walk-reflogs -- A"
 109 '
 110
 111 test_expect_success 'git log -- multiple path specs does not use Bloom filters' '
 112         test_bloom_filters_not_used "-- file4 A/file1"
 113 '
 114
 115 test_expect_success 'git log with wildcard that resolves to a single path uses Bloom filters' '
 116         test_bloom_filters_used "-- *4" &&
 117         test_bloom_filters_used "-- *renamed"
 118 '
 119
 120 test_expect_success 'git log with wildcard that resolves to a multiple paths does not uses Bloom filters' '
 121         test_bloom_filters_not_used "-- *" &&
 122         test_bloom_filters_not_used "-- file*"
 123 '
 124
 125 test_expect_success 'setup - add commit-graph to the chain without Bloom filters' '
 126         test_commit c14 A/anotherFile2 &&
 127         test_commit c15 A/B/anotherFile2 &&
 128         test_commit c16 A/B/C/anotherFile2 &&
 129         GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS=0 git commit-graph write --reachable --split &&
 130         test_line_count = 2 .git/objects/info/commit-graphs/commit-graph-chain
 131 '
 132
 133 test_expect_success 'Do not use Bloom filters if the latest graph does not have Bloom filters.' '
 134         test_bloom_filters_not_used "-- A/B"
 135 '
 136
 137 test_expect_success 'setup - add commit-graph to the chain with Bloom filters' '
 138         test_commit c17 A/anotherFile3 &&
 139         git commit-graph write --reachable --changed-paths --split &&
 140         test_line_count = 3 .git/objects/info/commit-graphs/commit-graph-chain
 141 '
 142
 143 test_bloom_filters_used_when_some_filters_are_missing () {
 144         log_args=$1
 145         bloom_trace_prefix="statistics:{\"filter_not_present\":3,\"zero_length_filter\":0,\"maybe\":8,\"definitely_not\":6"
 146         setup "$log_args" &&
 147         grep -q "$bloom_trace_prefix" "$TRASH_DIRECTORY/trace.perf" &&
 148         test_cmp log_wo_bloom log_w_bloom
 149 }
 150
 151 test_expect_success 'Use Bloom filters if they exist in the latest but not all commit graphs in the chain.' '
 152         test_bloom_filters_used_when_some_filters_are_missing "-- A/B"
 153 '
 154
 155 test_done