Andrew's git - gitweb.git/blob - t/t5319-multi-pack-index.sh

   1#!/bin/sh
   2
   3test_description='multi-pack-indexes'
   4. ./test-lib.sh
   5
   6midx_read_expect () {
   7        NUM_PACKS=$1
   8        NUM_OBJECTS=$2
   9        NUM_CHUNKS=$3
  10        OBJECT_DIR=$4
  11        EXTRA_CHUNKS="$5"
  12        {
  13                cat <<-EOF &&
  14                header: 4d494458 1 $NUM_CHUNKS $NUM_PACKS
  15                chunks: pack-names oid-fanout oid-lookup object-offsets$EXTRA_CHUNKS
  16                num_objects: $NUM_OBJECTS
  17                packs:
  18                EOF
  19                if test $NUM_PACKS -ge 1
  20                then
  21                        ls $OBJECT_DIR/pack/ | grep idx | sort
  22                fi &&
  23                printf "object-dir: $OBJECT_DIR\n"
  24        } >expect &&
  25        test-tool read-midx $OBJECT_DIR >actual &&
  26        test_cmp expect actual
  27}
  28
  29test_expect_success 'write midx with no packs' '
  30        test_when_finished rm -f pack/multi-pack-index &&
  31        git multi-pack-index --object-dir=. write &&
  32        midx_read_expect 0 0 4 .
  33'
  34
  35generate_objects () {
  36        i=$1
  37        iii=$(printf '%03i' $i)
  38        {
  39                test-tool genrandom "bar" 200 &&
  40                test-tool genrandom "baz $iii" 50
  41        } >wide_delta_$iii &&
  42        {
  43                test-tool genrandom "foo"$i 100 &&
  44                test-tool genrandom "foo"$(( $i + 1 )) 100 &&
  45                test-tool genrandom "foo"$(( $i + 2 )) 100
  46        } >deep_delta_$iii &&
  47        {
  48                echo $iii &&
  49                test-tool genrandom "$iii" 8192
  50        } >file_$iii &&
  51        git update-index --add file_$iii deep_delta_$iii wide_delta_$iii
  52}
  53
  54commit_and_list_objects () {
  55        {
  56                echo 101 &&
  57                test-tool genrandom 100 8192;
  58        } >file_101 &&
  59        git update-index --add file_101 &&
  60        tree=$(git write-tree) &&
  61        commit=$(git commit-tree $tree -p HEAD</dev/null) &&
  62        {
  63                echo $tree &&
  64                git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\)        .*/\\1/"
  65        } >obj-list &&
  66        git reset --hard $commit
  67}
  68
  69test_expect_success 'create objects' '
  70        test_commit initial &&
  71        for i in $(test_seq 1 5)
  72        do
  73                generate_objects $i
  74        done &&
  75        commit_and_list_objects
  76'
  77
  78test_expect_success 'write midx with one v1 pack' '
  79        pack=$(git pack-objects --index-version=1 pack/test <obj-list) &&
  80        test_when_finished rm pack/test-$pack.pack pack/test-$pack.idx pack/multi-pack-index &&
  81        git multi-pack-index --object-dir=. write &&
  82        midx_read_expect 1 18 4 .
  83'
  84
  85test_expect_success 'write midx with one v2 pack' '
  86        git pack-objects --index-version=2,0x40 pack/test <obj-list &&
  87        git multi-pack-index --object-dir=. write &&
  88        midx_read_expect 1 18 4 .
  89'
  90
  91test_expect_success 'add more objects' '
  92        for i in $(test_seq 6 10)
  93        do
  94                generate_objects $i
  95        done &&
  96        commit_and_list_objects
  97'
  98
  99test_expect_success 'write midx with two packs' '
 100        git pack-objects --index-version=1 pack/test-2 <obj-list &&
 101        git multi-pack-index --object-dir=. write &&
 102        midx_read_expect 2 34 4 .
 103'
 104
 105test_expect_success 'add more packs' '
 106        for j in $(test_seq 11 20)
 107        do
 108                generate_objects $j &&
 109                commit_and_list_objects &&
 110                git pack-objects --index-version=2 pack/test-pack <obj-list
 111        done
 112'
 113
 114test_expect_success 'write midx with twelve packs' '
 115        git multi-pack-index --object-dir=. write &&
 116        midx_read_expect 12 74 4 .
 117'
 118
 119# usage: corrupt_data <file> <pos> [<data>]
 120corrupt_data () {
 121        file=$1
 122        pos=$2
 123        data="${3:-\0}"
 124        printf "$data" | dd of="$file" bs=1 seek="$pos" conv=notrunc
 125}
 126
 127# Force 64-bit offsets by manipulating the idx file.
 128# This makes the IDX file _incorrect_ so be careful to clean up after!
 129test_expect_success 'force some 64-bit offsets with pack-objects' '
 130        mkdir objects64 &&
 131        mkdir objects64/pack &&
 132        for i in $(test_seq 1 11)
 133        do
 134                generate_objects 11
 135        done &&
 136        commit_and_list_objects &&
 137        pack64=$(git pack-objects --index-version=2,0x40 objects64/pack/test-64 <obj-list) &&
 138        idx64=objects64/pack/test-64-$pack64.idx &&
 139        chmod u+w $idx64 &&
 140        corrupt_data $idx64 2999 "\02" &&
 141        midx64=$(git multi-pack-index --object-dir=objects64 write) &&
 142        midx_read_expect 1 63 5 objects64 " large-offsets"
 143'
 144
 145test_done