diff options
Diffstat (limited to 'src/ident.c')
-rw-r--r-- | src/ident.c | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/src/ident.c b/src/ident.c deleted file mode 100644 index e5aab80ed..000000000 --- a/src/ident.c +++ /dev/null @@ -1,139 +0,0 @@ -/* - * Copyright (C) the libgit2 contributors. All rights reserved. - * - * This file is part of libgit2, distributed under the GNU GPL v2 with - * a Linking Exception. For full terms see the included COPYING file. - */ - -#include "common.h" - -#include "git2/sys/filter.h" -#include "filter.h" -#include "buffer.h" - -static int ident_find_id( - const char **id_start, const char **id_end, const char *start, size_t len) -{ - const char *end = start + len, *found = NULL; - - while (len > 3 && (found = memchr(start, '$', len)) != NULL) { - size_t remaining = (size_t)(end - found) - 1; - if (remaining < 3) - return GIT_ENOTFOUND; - - start = found + 1; - len = remaining; - - if (start[0] == 'I' && start[1] == 'd') - break; - } - - if (len < 3 || !found) - return GIT_ENOTFOUND; - *id_start = found; - - if ((found = memchr(start + 2, '$', len - 2)) == NULL) - return GIT_ENOTFOUND; - - *id_end = found + 1; - return 0; -} - -static int ident_insert_id( - git_buf *to, const git_buf *from, const git_filter_source *src) -{ - char oid[GIT_OID_HEXSZ+1]; - const char *id_start, *id_end, *from_end = from->ptr + from->size; - size_t need_size; - - /* replace $Id$ with blob id */ - - if (!git_filter_source_id(src)) - return GIT_PASSTHROUGH; - - git_oid_tostr(oid, sizeof(oid), git_filter_source_id(src)); - - if (ident_find_id(&id_start, &id_end, from->ptr, from->size) < 0) - return GIT_PASSTHROUGH; - - need_size = (size_t)(id_start - from->ptr) + - 5 /* "$Id: " */ + GIT_OID_HEXSZ + 2 /* " $" */ + - (size_t)(from_end - id_end); - - if (git_buf_grow(to, need_size) < 0) - return -1; - - git_buf_set(to, from->ptr, (size_t)(id_start - from->ptr)); - git_buf_put(to, "$Id: ", 5); - git_buf_put(to, oid, GIT_OID_HEXSZ); - git_buf_put(to, " $", 2); - git_buf_put(to, id_end, (size_t)(from_end - id_end)); - - return git_buf_oom(to) ? -1 : 0; -} - -static int ident_remove_id( - git_buf *to, const git_buf *from) -{ - const char *id_start, *id_end, *from_end = from->ptr + from->size; - size_t need_size; - - if (ident_find_id(&id_start, &id_end, from->ptr, from->size) < 0) - return GIT_PASSTHROUGH; - - need_size = (size_t)(id_start - from->ptr) + - 4 /* "$Id$" */ + (size_t)(from_end - id_end); - - if (git_buf_grow(to, need_size) < 0) - return -1; - - git_buf_set(to, from->ptr, (size_t)(id_start - from->ptr)); - git_buf_put(to, "$Id$", 4); - git_buf_put(to, id_end, (size_t)(from_end - id_end)); - - return git_buf_oom(to) ? -1 : 0; -} - -static int ident_apply( - git_filter *self, - void **payload, - git_buf *to, - const git_buf *from, - const git_filter_source *src) -{ - GIT_UNUSED(self); GIT_UNUSED(payload); - - /* Don't filter binary files */ - if (git_buf_is_binary(from)) - return GIT_PASSTHROUGH; - - if (git_filter_source_mode(src) == GIT_FILTER_SMUDGE) - return ident_insert_id(to, from, src); - else - return ident_remove_id(to, from); -} - -static int ident_stream( - git_writestream **out, - git_filter *self, - void **payload, - const git_filter_source *src, - git_writestream *next) -{ - return git_filter_buffered_stream_new(out, - self, ident_apply, NULL, payload, src, next); -} - -git_filter *git_ident_filter_new(void) -{ - git_filter *f = git__calloc(1, sizeof(git_filter)); - if (f == NULL) - return NULL; - - f->version = GIT_FILTER_VERSION; - f->attributes = "+ident"; /* apply to files with ident attribute set */ - f->shutdown = git_filter_free; - f->stream = ident_stream; - - return f; -} |