X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=unpack-trees.c;h=d5a453079a02ff8b7a63a3453d07935e0807c005;hb=HEAD;hp=803445aa7be140c3707bcebc72aaf6fc6af45e4b;hpb=6a2e93f1074d5a8b25c2020805e6b8d795d13e4d;p=git.git diff --git a/unpack-trees.c b/unpack-trees.c index 803445aa7..d5a453079 100644 --- a/unpack-trees.c +++ b/unpack-trees.c @@ -53,6 +53,7 @@ const char *unpack_plumbing_errors[NB_UNPACK_TREES_ERROR_TYPES] = { void setup_unpack_trees_porcelain(struct unpack_trees_options *opts, const char *cmd) { + int i; const char **msgs = opts->msgs; const char *msg; char *tmp; @@ -96,6 +97,9 @@ void setup_unpack_trees_porcelain(struct unpack_trees_options *opts, "The following Working tree files would be removed by sparse checkout update:\n%s"; opts->show_all_errors = 1; + /* rejected paths may not have a static buffer */ + for (i = 0; i < ARRAY_SIZE(opts->unpack_rejects); i++) + opts->unpack_rejects[i].strdup_strings = 1; } static void add_entry(struct unpack_trees_options *o, struct cache_entry *ce, @@ -124,7 +128,6 @@ static int add_rejected_path(struct unpack_trees_options *o, enum unpack_trees_error_types e, const char *path) { - struct rejected_paths_list *newentry; if (!o->show_all_errors) return error(ERRORMSG(o, e), path); @@ -132,45 +135,28 @@ static int add_rejected_path(struct unpack_trees_options *o, * Otherwise, insert in a list for future display by * display_error_msgs() */ - newentry = xmalloc(sizeof(struct rejected_paths_list)); - newentry->path = (char *)path; - newentry->next = o->unpack_rejects[e]; - o->unpack_rejects[e] = newentry; + string_list_append(&o->unpack_rejects[e], path); return -1; } -/* - * free all the structures allocated for the error - */ -static void free_rejected_paths(struct unpack_trees_options *o, - enum unpack_trees_error_types e) -{ - while (o->unpack_rejects[e]) { - struct rejected_paths_list *del = o->unpack_rejects[e]; - o->unpack_rejects[e] = o->unpack_rejects[e]->next; - free(del); - } - free(o->unpack_rejects[e]); -} - /* * display all the error messages stored in a nice way */ static void display_error_msgs(struct unpack_trees_options *o) { - int e; + int e, i; int something_displayed = 0; for (e = 0; e < NB_UNPACK_TREES_ERROR_TYPES; e++) { - if (o->unpack_rejects[e]) { - struct rejected_paths_list *rp; + struct string_list *rejects = &o->unpack_rejects[e]; + if (rejects->nr > 0) { struct strbuf path = STRBUF_INIT; something_displayed = 1; - for (rp = o->unpack_rejects[e]; rp; rp = rp->next) - strbuf_addf(&path, "\t%s\n", rp->path); + for (i = 0; i < rejects->nr; i++) + strbuf_addf(&path, "\t%s\n", rejects->items[i].string); error(ERRORMSG(o, e), path.buf); strbuf_release(&path); - free_rejected_paths(o, e); } + string_list_clear(rejects, 0); } if (something_displayed) printf("Aborting\n"); @@ -182,7 +168,7 @@ static void display_error_msgs(struct unpack_trees_options *o) */ static void unlink_entry(struct cache_entry *ce) { - if (has_symlink_or_noent_leading_path(ce->name, ce_namelen(ce))) + if (!check_leading_path(ce->name, ce_namelen(ce))) return; if (remove_or_warn(ce->ce_mode, ce->name)) return; @@ -1127,14 +1113,65 @@ static int verify_clean_subdirectory(struct cache_entry *ce, * See if we can find a case-insensitive match in the index that also * matches the stat information, and assume it's that other file! */ -static int icase_exists(struct unpack_trees_options *o, struct cache_entry *dst, struct stat *st) +static int icase_exists(struct unpack_trees_options *o, const char *name, int len, struct stat *st) { struct cache_entry *src; - src = index_name_exists(o->src_index, dst->name, ce_namelen(dst), 1); + src = index_name_exists(o->src_index, name, len, 1); return src && !ie_match_stat(o->src_index, src, st, CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE); } +static int check_ok_to_remove(const char *name, int len, int dtype, + struct cache_entry *ce, struct stat *st, + enum unpack_trees_error_types error_type, + struct unpack_trees_options *o) +{ + struct cache_entry *result; + + /* + * It may be that the 'lstat()' succeeded even though + * target 'ce' was absent, because there is an old + * entry that is different only in case.. + * + * Ignore that lstat() if it matches. + */ + if (ignore_case && icase_exists(o, name, len, st)) + return 0; + + if (o->dir && excluded(o->dir, name, &dtype)) + /* + * ce->name is explicitly excluded, so it is Ok to + * overwrite it. + */ + return 0; + if (S_ISDIR(st->st_mode)) { + /* + * We are checking out path "foo" and + * found "foo/." in the working tree. + * This is tricky -- if we have modified + * files that are in "foo/" we would lose + * them. + */ + if (verify_clean_subdirectory(ce, error_type, o) < 0) + return -1; + return 0; + } + + /* + * The previous round may already have decided to + * delete this path, which is in a subdirectory that + * is being replaced with a blob. + */ + result = index_name_exists(&o->result, name, len, 0); + if (result) { + if (result->ce_flags & CE_REMOVE) + return 0; + } + + return o->gently ? -1 : + add_rejected_path(o, error_type, name); +} + /* * We do not want to remove or overwrite a working tree file that * is not tracked, unless it is ignored. @@ -1143,63 +1180,31 @@ static int verify_absent_1(struct cache_entry *ce, enum unpack_trees_error_types error_type, struct unpack_trees_options *o) { + int len; struct stat st; if (o->index_only || o->reset || !o->update) return 0; - if (has_symlink_or_noent_leading_path(ce->name, ce_namelen(ce))) + len = check_leading_path(ce->name, ce_namelen(ce)); + if (!len) return 0; + else if (len > 0) { + char path[PATH_MAX + 1]; + memcpy(path, ce->name, len); + path[len] = 0; + lstat(path, &st); + + return check_ok_to_remove(path, len, DT_UNKNOWN, NULL, &st, + error_type, o); + } else if (!lstat(ce->name, &st)) + return check_ok_to_remove(ce->name, ce_namelen(ce), + ce_to_dtype(ce), ce, &st, + error_type, o); - if (!lstat(ce->name, &st)) { - int dtype = ce_to_dtype(ce); - struct cache_entry *result; - - /* - * It may be that the 'lstat()' succeeded even though - * target 'ce' was absent, because there is an old - * entry that is different only in case.. - * - * Ignore that lstat() if it matches. - */ - if (ignore_case && icase_exists(o, ce, &st)) - return 0; - - if (o->dir && excluded(o->dir, ce->name, &dtype)) - /* - * ce->name is explicitly excluded, so it is Ok to - * overwrite it. - */ - return 0; - if (S_ISDIR(st.st_mode)) { - /* - * We are checking out path "foo" and - * found "foo/." in the working tree. - * This is tricky -- if we have modified - * files that are in "foo/" we would lose - * them. - */ - if (verify_clean_subdirectory(ce, error_type, o) < 0) - return -1; - return 0; - } - - /* - * The previous round may already have decided to - * delete this path, which is in a subdirectory that - * is being replaced with a blob. - */ - result = index_name_exists(&o->result, ce->name, ce_namelen(ce), 0); - if (result) { - if (result->ce_flags & CE_REMOVE) - return 0; - } - - return o->gently ? -1 : - add_rejected_path(o, error_type, ce->name); - } return 0; } + static int verify_absent(struct cache_entry *ce, enum unpack_trees_error_types error_type, struct unpack_trees_options *o)