diff options
Diffstat (limited to 'apply.c')
| -rw-r--r-- | apply.c | 50 |
1 files changed, 26 insertions, 24 deletions
@@ -223,8 +223,8 @@ struct patch { struct fragment *fragments; char *result; size_t resultsize; - char old_sha1_prefix[41]; - char new_sha1_prefix[41]; + char old_oid_prefix[GIT_MAX_HEXSZ + 1]; + char new_oid_prefix[GIT_MAX_HEXSZ + 1]; struct patch *next; /* three-way fallback result */ @@ -1093,13 +1093,14 @@ static int gitdiff_index(struct apply_state *state, */ const char *ptr, *eol; int len; + const unsigned hexsz = the_hash_algo->hexsz; ptr = strchr(line, '.'); - if (!ptr || ptr[1] != '.' || 40 < ptr - line) + if (!ptr || ptr[1] != '.' || hexsz < ptr - line) return 0; len = ptr - line; - memcpy(patch->old_sha1_prefix, line, len); - patch->old_sha1_prefix[len] = 0; + memcpy(patch->old_oid_prefix, line, len); + patch->old_oid_prefix[len] = 0; line = ptr + 2; ptr = strchr(line, ' '); @@ -1109,10 +1110,10 @@ static int gitdiff_index(struct apply_state *state, ptr = eol; len = ptr - line; - if (40 < len) + if (hexsz < len) return 0; - memcpy(patch->new_sha1_prefix, line, len); - patch->new_sha1_prefix[len] = 0; + memcpy(patch->new_oid_prefix, line, len); + patch->new_oid_prefix[len] = 0; if (*ptr == ' ') return gitdiff_oldmode(state, ptr + 1, patch); return 0; @@ -2206,7 +2207,7 @@ static void reverse_patches(struct patch *p) SWAP(p->new_mode, p->old_mode); SWAP(p->is_new, p->is_delete); SWAP(p->lines_added, p->lines_deleted); - SWAP(p->old_sha1_prefix, p->new_sha1_prefix); + SWAP(p->old_oid_prefix, p->new_oid_prefix); for (; frag; frag = frag->next) { SWAP(frag->newpos, frag->oldpos); @@ -3144,15 +3145,16 @@ static int apply_binary(struct apply_state *state, { const char *name = patch->old_name ? patch->old_name : patch->new_name; struct object_id oid; + const unsigned hexsz = the_hash_algo->hexsz; /* * For safety, we require patch index line to contain - * full 40-byte textual SHA1 for old and new, at least for now. + * full hex textual object ID for old and new, at least for now. */ - if (strlen(patch->old_sha1_prefix) != 40 || - strlen(patch->new_sha1_prefix) != 40 || - get_oid_hex(patch->old_sha1_prefix, &oid) || - get_oid_hex(patch->new_sha1_prefix, &oid)) + if (strlen(patch->old_oid_prefix) != hexsz || + strlen(patch->new_oid_prefix) != hexsz || + get_oid_hex(patch->old_oid_prefix, &oid) || + get_oid_hex(patch->new_oid_prefix, &oid)) return error(_("cannot apply binary patch to '%s' " "without full index line"), name); @@ -3162,7 +3164,7 @@ static int apply_binary(struct apply_state *state, * applies to. */ hash_object_file(img->buf, img->len, blob_type, &oid); - if (strcmp(oid_to_hex(&oid), patch->old_sha1_prefix)) + if (strcmp(oid_to_hex(&oid), patch->old_oid_prefix)) return error(_("the patch applies to '%s' (%s), " "which does not match the " "current contents."), @@ -3175,7 +3177,7 @@ static int apply_binary(struct apply_state *state, "'%s' but it is not empty"), name); } - get_oid_hex(patch->new_sha1_prefix, &oid); + get_oid_hex(patch->new_oid_prefix, &oid); if (is_null_oid(&oid)) { clear_image(img); return 0; /* deletion patch */ @@ -3191,7 +3193,7 @@ static int apply_binary(struct apply_state *state, if (!result) return error(_("the necessary postimage %s for " "'%s' cannot be read"), - patch->new_sha1_prefix, name); + patch->new_oid_prefix, name); clear_image(img); img->buf = result; img->len = size; @@ -3207,9 +3209,9 @@ static int apply_binary(struct apply_state *state, /* verify that the result matches */ hash_object_file(img->buf, img->len, blob_type, &oid); - if (strcmp(oid_to_hex(&oid), patch->new_sha1_prefix)) + if (strcmp(oid_to_hex(&oid), patch->new_oid_prefix)) return error(_("binary patch to '%s' creates incorrect result (expecting %s, got %s)"), - name, patch->new_sha1_prefix, oid_to_hex(&oid)); + name, patch->new_oid_prefix, oid_to_hex(&oid)); } return 0; @@ -3568,7 +3570,7 @@ static int try_threeway(struct apply_state *state, /* Preimage the patch was prepared for */ if (patch->is_new) write_object_file("", 0, blob_type, &pre_oid); - else if (get_oid(patch->old_sha1_prefix, &pre_oid) || + else if (get_oid(patch->old_oid_prefix, &pre_oid) || read_blob_object(&buf, &pre_oid, patch->old_mode)) return error(_("repository lacks the necessary blob to fall back on 3-way merge.")); @@ -4060,13 +4062,13 @@ static int preimage_oid_in_gitlink_patch(struct patch *p, struct object_id *oid) starts_with(++preimage, heading) && /* does it record full SHA-1? */ !get_oid_hex(preimage + sizeof(heading) - 1, oid) && - preimage[sizeof(heading) + GIT_SHA1_HEXSZ - 1] == '\n' && + preimage[sizeof(heading) + the_hash_algo->hexsz - 1] == '\n' && /* does the abbreviated name on the index line agree with it? */ - starts_with(preimage + sizeof(heading) - 1, p->old_sha1_prefix)) + starts_with(preimage + sizeof(heading) - 1, p->old_oid_prefix)) return 0; /* it all looks fine */ /* we may have full object name on the index line */ - return get_oid_hex(p->old_sha1_prefix, oid); + return get_oid_hex(p->old_oid_prefix, oid); } /* Build an index that contains just the files needed for a 3way merge */ @@ -4095,7 +4097,7 @@ static int build_fake_ancestor(struct apply_state *state, struct patch *list) else return error(_("sha1 information is lacking or " "useless for submodule %s"), name); - } else if (!get_oid_blob(patch->old_sha1_prefix, &oid)) { + } else if (!get_oid_blob(patch->old_oid_prefix, &oid)) { ; /* ok */ } else if (!patch->lines_added && !patch->lines_deleted) { /* mode-only change: update the current */ |