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19 files changed, 0 insertions, 143 deletions
diff --git a/sha1_file.c b/sha1_file.c index 613839db54..406aac45d9 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -1372,51 +1372,6 @@ void *map_sha1_file(const unsigned char *sha1, unsigned long *size) return map; } -/* - * There used to be a second loose object header format which - * was meant to mimic the in-pack format, allowing for direct - * copy of the object data. This format turned up not to be - * really worth it and we no longer write loose objects in that - * format. - */ -static int experimental_loose_object(unsigned char *map) -{ - unsigned int word; - - /* - * We must determine if the buffer contains the standard - * zlib-deflated stream or the experimental format based - * on the in-pack object format. Compare the header byte - * for each format: - * - * RFC1950 zlib w/ deflate : 0www1000 : 0 <= www <= 7 - * Experimental pack-based : Stttssss : ttt = 1,2,3,4 - * - * If bit 7 is clear and bits 0-3 equal 8, the buffer MUST be - * in standard loose-object format, UNLESS it is a Git-pack - * format object *exactly* 8 bytes in size when inflated. - * - * However, RFC1950 also specifies that the 1st 16-bit word - * must be divisible by 31 - this checksum tells us our buffer - * is in the standard format, giving a false positive only if - * the 1st word of the Git-pack format object happens to be - * divisible by 31, ie: - * ((byte0 * 256) + byte1) % 31 = 0 - * => 0ttt10000www1000 % 31 = 0 - * - * As it happens, this case can only arise for www=3 & ttt=1 - * - ie, a Commit object, which would have to be 8 bytes in - * size. As no Commit can be that small, we find that the - * combination of these two criteria (bitmask & checksum) - * can always correctly determine the buffer format. - */ - word = (map[0] << 8) + map[1]; - if ((map[0] & 0x8F) == 0x08 && !(word % 31)) - return 0; - else - return 1; -} - unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep) { @@ -1444,14 +1399,6 @@ unsigned long unpack_object_header_buffer(const unsigned char *buf, int unpack_sha1_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz) { - unsigned long size, used; - static const char valid_loose_object_type[8] = { - 0, /* OBJ_EXT */ - 1, 1, 1, 1, /* "commit", "tree", "blob", "tag" */ - 0, /* "delta" and others are invalid in a loose object */ - }; - enum object_type type; - /* Get the data stream */ memset(stream, 0, sizeof(*stream)); stream->next_in = map; @@ -1459,27 +1406,6 @@ int unpack_sha1_header(git_zstream *stream, unsigned char *map, unsigned long ma stream->next_out = buffer; stream->avail_out = bufsiz; - if (experimental_loose_object(map)) { - /* - * The old experimental format we no longer produce; - * we can still read it. - */ - used = unpack_object_header_buffer(map, mapsize, &type, &size); - if (!used || !valid_loose_object_type[type]) - return -1; - map += used; - mapsize -= used; - - /* Set up the stream for the rest.. */ - stream->next_in = map; - stream->avail_in = mapsize; - git_inflate_init(stream); - - /* And generate the fake traditional header */ - stream->total_out = 1 + snprintf(buffer, bufsiz, "%s %lu", - typename(type), size); - return 0; - } git_inflate_init(stream); return git_inflate(stream, 0); } diff --git a/t/t1013-loose-object-format.sh b/t/t1013-loose-object-format.sh deleted file mode 100755 index fbf5f2fc00..0000000000 --- a/t/t1013-loose-object-format.sh +++ /dev/null @@ -1,66 +0,0 @@ -#!/bin/sh -# -# Copyright (c) 2011 Roberto Tyley -# - -test_description='Correctly identify and parse loose object headers - -There are two file formats for loose objects - the original standard -format, and the experimental format introduced with Git v1.4.3, later -deprecated with v1.5.3. Although Git no longer writes the -experimental format, objects in both formats must be read, with the -format for a given file being determined by the header. - -Detecting file format based on header is not entirely trivial, not -least because the first byte of a zlib-deflated stream will vary -depending on how much memory was allocated for the deflation window -buffer when the object was written out (for example 4KB on Android, -rather that 32KB on a normal PC). - -The loose objects used as test vectors have been generated with the -following Git versions: - -standard format: Git v1.7.4.1 -experimental format: Git v1.4.3 (legacyheaders=false) -standard format, deflated with 4KB window size: Agit/JGit on Android -' - -. ./test-lib.sh - -assert_blob_equals() { - printf "%s" "$2" >expected && - git cat-file -p "$1" >actual && - test_cmp expected actual -} - -test_expect_success setup ' - cp -R "$TEST_DIRECTORY/t1013/objects" .git/ && - git --version -' - -test_expect_success 'read standard-format loose objects' ' - git cat-file tag 8d4e360d6c70fbd72411991c02a09c442cf7a9fa && - git cat-file commit 6baee0540ea990d9761a3eb9ab183003a71c3696 && - git ls-tree 7a37b887a73791d12d26c0d3e39568a8fb0fa6e8 && - assert_blob_equals "257cc5642cb1a054f08cc83f2d943e56fd3ebe99" "foo$LF" -' - -test_expect_success 'read experimental-format loose objects' ' - git cat-file tag 76e7fa9941f4d5f97f64fea65a2cba436bc79cbb && - git cat-file commit 7875c6237d3fcdd0ac2f0decc7d3fa6a50b66c09 && - git ls-tree 95b1625de3ba8b2214d1e0d0591138aea733f64f && - assert_blob_equals "2e65efe2a145dda7ee51d1741299f848e5bf752e" "a" && - assert_blob_equals "9ae9e86b7bd6cb1472d9373702d8249973da0832" "ab" && - assert_blob_equals "85df50785d62d3b05ab03d9cbf7e4a0b49449730" "abcd" && - assert_blob_equals "1656f9233d999f61ef23ef390b9c71d75399f435" "abcdefgh" && - assert_blob_equals "1e72a6b2c4a577ab0338860fa9fe87f761fc9bbd" "abcdefghi" && - assert_blob_equals "70e6a83d8dcb26fc8bc0cf702e2ddeb6adca18fd" "abcdefghijklmnop" && - assert_blob_equals "bd15045f6ce8ff75747562173640456a394412c8" "abcdefghijklmnopqrstuvwx" -' - -test_expect_success 'read standard-format objects deflated with smaller window buffer' ' - git cat-file tag f816d5255855ac160652ee5253b06cd8ee14165a && - git cat-file tag 149cedb5c46929d18e0f118e9fa31927487af3b6 -' - -test_done diff --git a/t/t1013/objects/14/9cedb5c46929d18e0f118e9fa31927487af3b6 b/t/t1013/objects/14/9cedb5c46929d18e0f118e9fa31927487af3b6 Binary files differdeleted file mode 100644 index 472fd1458e..0000000000 --- a/t/t1013/objects/14/9cedb5c46929d18e0f118e9fa31927487af3b6 +++ /dev/null diff --git a/t/t1013/objects/16/56f9233d999f61ef23ef390b9c71d75399f435 b/t/t1013/objects/16/56f9233d999f61ef23ef390b9c71d75399f435 Binary files differdeleted file mode 100644 index c379d74ae2..0000000000 --- a/t/t1013/objects/16/56f9233d999f61ef23ef390b9c71d75399f435 +++ /dev/null diff --git a/t/t1013/objects/1e/72a6b2c4a577ab0338860fa9fe87f761fc9bbd b/t/t1013/objects/1e/72a6b2c4a577ab0338860fa9fe87f761fc9bbd Binary files differdeleted file mode 100644 index 93706305bc..0000000000 --- a/t/t1013/objects/1e/72a6b2c4a577ab0338860fa9fe87f761fc9bbd +++ /dev/null diff --git a/t/t1013/objects/25/7cc5642cb1a054f08cc83f2d943e56fd3ebe99 b/t/t1013/objects/25/7cc5642cb1a054f08cc83f2d943e56fd3ebe99 Binary files differdeleted file mode 100644 index bdcf704c9e..0000000000 --- a/t/t1013/objects/25/7cc5642cb1a054f08cc83f2d943e56fd3ebe99 +++ /dev/null diff --git a/t/t1013/objects/2e/65efe2a145dda7ee51d1741299f848e5bf752e b/t/t1013/objects/2e/65efe2a145dda7ee51d1741299f848e5bf752e Binary files differdeleted file mode 100644 index ad62c43e41..0000000000 --- a/t/t1013/objects/2e/65efe2a145dda7ee51d1741299f848e5bf752e +++ /dev/null diff --git a/t/t1013/objects/6b/aee0540ea990d9761a3eb9ab183003a71c3696 b/t/t1013/objects/6b/aee0540ea990d9761a3eb9ab183003a71c3696 Binary files differdeleted file mode 100644 index 3d2f0337db..0000000000 --- a/t/t1013/objects/6b/aee0540ea990d9761a3eb9ab183003a71c3696 +++ /dev/null diff --git a/t/t1013/objects/70/e6a83d8dcb26fc8bc0cf702e2ddeb6adca18fd b/t/t1013/objects/70/e6a83d8dcb26fc8bc0cf702e2ddeb6adca18fd Binary files differdeleted file mode 100644 index b3f71a6ee5..0000000000 --- a/t/t1013/objects/70/e6a83d8dcb26fc8bc0cf702e2ddeb6adca18fd +++ /dev/null diff --git a/t/t1013/objects/76/e7fa9941f4d5f97f64fea65a2cba436bc79cbb b/t/t1013/objects/76/e7fa9941f4d5f97f64fea65a2cba436bc79cbb deleted file mode 100644 index af4e9a7b0c..0000000000 --- a/t/t1013/objects/76/e7fa9941f4d5f97f64fea65a2cba436bc79cbb +++ /dev/null @@ -1,2 +0,0 @@ - x%A0@}O1{cSZ(νthZޠ?
m6di9GhبZR'QR pqL9=gsIoopeϫ_1$*SiNwpPRB -[(d-L9
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Ie &* G^D҆wUҗ S4 ,f[VAۺ x6[wtGLu? @"g{+by%M
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