From 5bdf0a8468efd55cf8f13cafdb946c0ade3372fe Mon Sep 17 00:00:00 2001 From: Hui Wang Date: Wed, 7 Sep 2011 18:37:47 +0800 Subject: [PATCH] sha1_file: normalize alt_odb path before comparing and storing When it needs to compare and add an alt object path to the alt_odb_list, we normalize this path first since comparing normalized path is easy to get correct result. Use strbuf to replace some string operations, since it is cleaner and safer. Helped-by: Junio C Hamano Signed-off-by: Hui Wang Signed-off-by: Junio C Hamano --- sha1_file.c | 37 ++++++++++++++++++++----------------- 1 file changed, 20 insertions(+), 17 deletions(-) diff --git a/sha1_file.c b/sha1_file.c index 064a33040..d880137ef 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -248,27 +248,30 @@ static int link_alt_odb_entry(const char * entry, int len, const char * relative const char *objdir = get_object_directory(); struct alternate_object_database *ent; struct alternate_object_database *alt; - /* 43 = 40-byte + 2 '/' + terminating NUL */ - int pfxlen = len; - int entlen = pfxlen + 43; - int base_len = -1; + int pfxlen, entlen; + struct strbuf pathbuf = STRBUF_INIT; if (!is_absolute_path(entry) && relative_base) { - /* Relative alt-odb */ - if (base_len < 0) - base_len = strlen(relative_base) + 1; - entlen += base_len; - pfxlen += base_len; + strbuf_addstr(&pathbuf, real_path(relative_base)); + strbuf_addch(&pathbuf, '/'); } - ent = xmalloc(sizeof(*ent) + entlen); + strbuf_add(&pathbuf, entry, len); - if (!is_absolute_path(entry) && relative_base) { - memcpy(ent->base, relative_base, base_len - 1); - ent->base[base_len - 1] = '/'; - memcpy(ent->base + base_len, entry, len); - } - else - memcpy(ent->base, entry, pfxlen); + normalize_path_copy(pathbuf.buf, pathbuf.buf); + + pfxlen = strlen(pathbuf.buf); + + /* + * The trailing slash after the directory name is given by + * this function at the end. Remove duplicates. + */ + while (pfxlen && pathbuf.buf[pfxlen-1] == '/') + pfxlen -= 1; + + entlen = pfxlen + 43; /* '/' + 2 hex + '/' + 38 hex + NUL */ + ent = xmalloc(sizeof(*ent) + entlen); + memcpy(ent->base, pathbuf.buf, pfxlen); + strbuf_release(&pathbuf); ent->name = ent->base + pfxlen + 1; ent->base[pfxlen + 3] = '/'; -- 2.26.2