tests: don't rely on strerror text when testing rmdir failure

diff --git a/wt-status.c b/wt-status.c
index 4625cdb900f179e94314348340719b677fed1ca1..4e5581005936a1e7832e3ab224cfe142ac777a63 100644 (file)
--- a/wt-status.c
+++ b/wt-status.c
@@ -17,6 +17,9 @@
 #include "strbuf.h"
 #include "utf8.h"
 
+static char cut_line[] =
+"------------------------ >8 ------------------------\n";
+
 static char default_wt_status_colors[][COLOR_MAXLEN] = {
        GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
        GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
@@ -793,6 +796,18 @@ static void wt_status_print_other(struct wt_status *s,
        status_printf_ln(s, GIT_COLOR_NORMAL, "");
 }
 
+void wt_status_truncate_message_at_cut_line(struct strbuf *buf)
+{
+       const char *p;
+       struct strbuf pattern = STRBUF_INIT;
+
+       strbuf_addf(&pattern, "%c %s", comment_line_char, cut_line);
+       p = strstr(buf->buf, pattern.buf);
+       if (p && (p == buf->buf || p[-1] == '\n'))
+               strbuf_setlen(buf, p - buf->buf);
+       strbuf_release(&pattern);
+}
+
 static void wt_status_print_verbose(struct wt_status *s)
 {
        struct rev_info rev;
@@ -813,10 +828,20 @@ static void wt_status_print_verbose(struct wt_status *s)
         * If we're not going to stdout, then we definitely don't
         * want color, since we are going to the commit message
         * file (and even the "auto" setting won't work, since it
-        * will have checked isatty on stdout).
+        * will have checked isatty on stdout). But we then do want
+        * to insert the scissor line here to reliably remove the
+        * diff before committing.
         */
-       if (s->fp != stdout)
+       if (s->fp != stdout) {
+               const char *explanation = _("Do not touch the line above.\nEverything below will be removed.");
+               struct strbuf buf = STRBUF_INIT;
+
                rev.diffopt.use_color = 0;
+               fprintf(s->fp, "%c %s", comment_line_char, cut_line);
+               strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
+               fputs(buf.buf, s->fp);
+               strbuf_release(&buf);
+       }
        run_diff_index(&rev, 1);
 }
 
@@ -829,7 +854,7 @@ static void wt_status_print_tracking(struct wt_status *s)
        int i;
 
        assert(s->branch && !s->is_initial);
-       if (prefixcmp(s->branch, "refs/heads/"))
+       if (!starts_with(s->branch, "refs/heads/"))
                return;
        branch = branch_get(s->branch + 11);
        if (!format_tracking_info(branch, &sb))
@@ -1088,9 +1113,9 @@ static char *read_and_strip_branch(const char *path)
                strbuf_setlen(&sb, sb.len - 1);
        if (!sb.len)
                goto got_nothing;
-       if (!prefixcmp(sb.buf, "refs/heads/"))
+       if (starts_with(sb.buf, "refs/heads/"))
                strbuf_remove(&sb,0, strlen("refs/heads/"));
-       else if (!prefixcmp(sb.buf, "refs/"))
+       else if (starts_with(sb.buf, "refs/"))
                ;
        else if (!get_sha1_hex(sb.buf, sha1)) {
                const char *abbrev;
@@ -1120,7 +1145,7 @@ static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
        struct grab_1st_switch_cbdata *cb = cb_data;
        const char *target = NULL, *end;
 
-       if (prefixcmp(message, "checkout: moving from "))
+       if (!starts_with(message, "checkout: moving from "))
                return 0;
        message += strlen("checkout: moving from ");
        target = strstr(message, " to ");
@@ -1155,9 +1180,9 @@ static void wt_status_get_detached_from(struct wt_status_state *state)
             ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
              !hashcmp(cb.nsha1, commit->object.sha1)))) {
                int ofs;
-               if (!prefixcmp(ref, "refs/tags/"))
+               if (starts_with(ref, "refs/tags/"))
                        ofs = strlen("refs/tags/");
-               else if (!prefixcmp(ref, "refs/remotes/"))
+               else if (starts_with(ref, "refs/remotes/"))
                        ofs = strlen("refs/remotes/");
                else
                        ofs = 0;
@@ -1246,7 +1271,7 @@ void wt_status_print(struct wt_status *s)
        if (s->branch) {
                const char *on_what = _("On branch ");
                const char *branch_name = s->branch;
-               if (!prefixcmp(branch_name, "refs/heads/"))
+               if (starts_with(branch_name, "refs/heads/"))
                        branch_name += 11;
                else if (!strcmp(branch_name, "HEAD")) {
                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
@@ -1447,7 +1472,7 @@ static void wt_shortstatus_print_tracking(struct wt_status *s)
                return;
        branch_name = s->branch;
 
-       if (!prefixcmp(branch_name, "refs/heads/"))
+       if (starts_with(branch_name, "refs/heads/"))
                branch_name += 11;
        else if (!strcmp(branch_name, "HEAD")) {
                branch_name = _("HEAD (no branch)");