setup.c: document get_pathspec()

diff --git a/merge-recursive.c b/merge-recursive.c
index 0fb174359ac12ec9dc02078f870f750915557725..e02da3556d08f02abf87cb1ece75a2e1d0c8ab78 100644 (file)
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -493,8 +493,7 @@ static struct string_list *get_renames(struct merge_options *o,
        opts.rename_score = o->rename_score;
        opts.show_rename_progress = o->show_rename_progress;
        opts.output_format = DIFF_FORMAT_NO_OUTPUT;
-       if (diff_setup_done(&opts) < 0)
-               die("diff setup failed");
+       diff_setup_done(&opts);
        diff_tree_sha1(o_tree->object.sha1, tree->object.sha1, "", &opts);
        diffcore_std(&opts);
        if (opts.needed_rename_limit > o->needed_rename_limit)
@@ -614,23 +613,6 @@ static char *unique_path(struct merge_options *o, const char *path, const char *
        return newpath;
 }
 
-static void flush_buffer(int fd, const char *buf, unsigned long size)
-{
-       while (size > 0) {
-               long ret = write_in_full(fd, buf, size);
-               if (ret < 0) {
-                       /* Ignore epipe */
-                       if (errno == EPIPE)
-                               break;
-                       die_errno("merge-recursive");
-               } else if (!ret) {
-                       die("merge-recursive: disk full?");
-               }
-               size -= ret;
-               buf += ret;
-       }
-}
-
 static int dir_in_way(const char *path, int check_working_copy)
 {
        int pos, pathlen = strlen(path);
@@ -789,7 +771,7 @@ static void update_file_flags(struct merge_options *o,
                        fd = open(path, O_WRONLY | O_TRUNC | O_CREAT, mode);
                        if (fd < 0)
                                die_errno("failed to open '%s'", path);
-                       flush_buffer(fd, buf, size);
+                       write_in_full(fd, buf, size);
                        close(fd);
                } else if (S_ISLNK(mode)) {
                        char *lnk = xmemdupz(buf, size);
@@ -2069,9 +2051,9 @@ int parse_merge_opt(struct merge_options *o, const char *s)
        else if (!prefixcmp(s, "subtree="))
                o->subtree_shift = s + strlen("subtree=");
        else if (!strcmp(s, "patience"))
-               o->xdl_opts |= XDF_PATIENCE_DIFF;
+               o->xdl_opts = DIFF_WITH_ALG(o, PATIENCE_DIFF);
        else if (!strcmp(s, "histogram"))
-               o->xdl_opts |= XDF_HISTOGRAM_DIFF;
+               o->xdl_opts = DIFF_WITH_ALG(o, HISTOGRAM_DIFF);
        else if (!strcmp(s, "ignore-space-change"))
                o->xdl_opts |= XDF_IGNORE_WHITESPACE_CHANGE;
        else if (!strcmp(s, "ignore-all-space"))