mirror of
https://github.com/git/git
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eea0e59ffb
Each of these were checked with
gcc -E -I. ${SOURCE_FILE} | grep ${HEADER_FILE}
to ensure that removing the direct inclusion of the header actually
resulted in that header no longer being included at all (i.e. that
no other header pulled it in transitively).
...except for a few cases where we verified that although the header
was brought in transitively, nothing from it was directly used in
that source file. These cases were:
* builtin/credential-cache.c
* builtin/pull.c
* builtin/send-pack.c
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/*
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* Copyright (c) 2005, 2006 Rene Scharfe
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*/
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#include "builtin.h"
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#include "commit.h"
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#include "tar.h"
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static const char builtin_get_tar_commit_id_usage[] =
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"git get-tar-commit-id";
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/* ustar header + extended global header content */
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#define RECORDSIZE (512)
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#define HEADERSIZE (2 * RECORDSIZE)
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int cmd_get_tar_commit_id(int argc, const char **argv UNUSED, const char *prefix)
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{
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char buffer[HEADERSIZE];
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struct ustar_header *header = (struct ustar_header *)buffer;
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char *content = buffer + RECORDSIZE;
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const char *comment;
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ssize_t n;
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long len;
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char *end;
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BUG_ON_NON_EMPTY_PREFIX(prefix);
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if (argc != 1)
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usage(builtin_get_tar_commit_id_usage);
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n = read_in_full(0, buffer, HEADERSIZE);
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if (n < 0)
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die_errno("git get-tar-commit-id: read error");
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if (n != HEADERSIZE)
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die_errno("git get-tar-commit-id: EOF before reading tar header");
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if (header->typeflag[0] != TYPEFLAG_GLOBAL_HEADER)
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return 1;
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len = strtol(content, &end, 10);
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if (errno == ERANGE || end == content || len < 0)
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return 1;
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if (!skip_prefix(end, " comment=", &comment))
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return 1;
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len -= comment - content;
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if (len < 1 || !(len % 2) ||
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hash_algo_by_length((len - 1) / 2) == GIT_HASH_UNKNOWN)
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return 1;
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if (write_in_full(1, comment, len) < 0)
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die_errno("git get-tar-commit-id: write error");
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return 0;
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}
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