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4674ab682d
"git apply" can work outside a repository as a better "GNU patch", but when it does so, it still assumed that it can access the_hash_algo, which is no longer true in the new world order. Make sure we explicitly fall back to SHA-1 algorithm for backward compatibility. It is of dubious value to make this configurable to other hash algorithms, as the code does not use the_hash_algo for hashing purposes when working outside a repository (which is how the_hash_algo is left to NULL)---it is only used to learn the max length of the hash when parsing the object names on the "index" line, but failing to parse the "index" line is not a hard failure, and the program does not support operations like applying binary patches and --3way fallback that requires object access outside a repository. Signed-off-by: Junio C Hamano <gitster@pobox.com>
43 lines
966 B
C
43 lines
966 B
C
#include "builtin.h"
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#include "gettext.h"
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#include "repository.h"
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#include "hash.h"
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#include "apply.h"
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static const char * const apply_usage[] = {
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N_("git apply [<options>] [<patch>...]"),
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NULL
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};
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int cmd_apply(int argc, const char **argv, const char *prefix)
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{
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int force_apply = 0;
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int options = 0;
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int ret;
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struct apply_state state;
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if (init_apply_state(&state, the_repository, prefix))
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exit(128);
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/*
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* We could to redo the "apply.c" machinery to make this
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* arbitrary fallback unnecessary, but it is dubious that it
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* is worth the effort.
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* cf. https://lore.kernel.org/git/xmqqcypfcmn4.fsf@gitster.g/
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*/
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if (!the_hash_algo)
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repo_set_hash_algo(the_repository, GIT_HASH_SHA1);
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argc = apply_parse_options(argc, argv,
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&state, &force_apply, &options,
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apply_usage);
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if (check_apply_state(&state, force_apply))
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exit(128);
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ret = apply_all_patches(&state, argc, argv, options);
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clear_apply_state(&state);
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return ret;
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}
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