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https://github.com/git/git
synced 2024-08-28 12:09:19 +00:00
11e7d5c594
This means that you can take a tag object, and do git-cat-file commit tagname and it will cat the commit that the tag points to. Or you can cat the tree that a commit (or tag) points to. It still gives the old behaviour if you just give it the original type, ie if you want to see the tag object itself, you'd do git-cat-file -t tagname and you'd get the expected tag output.
49 lines
898 B
C
49 lines
898 B
C
/*
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* GIT - The information manager from hell
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*
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* Copyright (C) Linus Torvalds, 2005
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*/
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#include "cache.h"
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int main(int argc, char **argv)
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{
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unsigned char sha1[20];
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char type[20];
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void *buf;
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unsigned long size;
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if (argc != 3 || get_sha1(argv[2], sha1))
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usage("cat-file [-t | tagname] <sha1>");
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if (!strcmp("-t", argv[1])) {
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buf = read_sha1_file(sha1, type, &size);
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if (buf) {
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buf = type;
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size = strlen(type);
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type[size] = '\n';
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}
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} else {
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buf = read_object_with_reference(sha1, argv[1], &size, NULL);
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}
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if (!buf)
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die("cat-file %s: bad file", argv[2]);
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while (size > 0) {
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long ret = write(1, buf, size);
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if (ret < 0) {
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if (errno == EAGAIN)
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continue;
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/* Ignore epipe */
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if (errno == EPIPE)
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break;
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die("cat-file: %s", strerror(errno));
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} else if (!ret) {
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die("cat-file: disk full?");
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}
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size -= ret;
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buf += ret;
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}
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return 0;
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}
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