git-bisect.sh: don't accidentally override existing branch "bisect"

diff --git a/log-tree.c b/log-tree.c
index 608f697cf3860245510bff907a643d9b6143e724..5b2963998cc497177d913b6224799531d45dbb4a 100644 (file)
--- a/log-tree.c
+++ b/log-tree.c
@@ -138,10 +138,14 @@ static int has_non_ascii(const char *s)
 }
 
 void log_write_email_headers(struct rev_info *opt, const char *name,
-                            const char **subject_p, const char **extra_headers_p)
+                            const char **subject_p,
+                            const char **extra_headers_p,
+                            int *need_8bit_cte_p)
 {
        const char *subject = NULL;
        const char *extra_headers = opt->extra_headers;
+
+       *need_8bit_cte_p = 0; /* unknown */
        if (opt->total > 0) {
                static char buffer[64];
                snprintf(buffer, sizeof(buffer),
@@ -169,6 +173,7 @@ void log_write_email_headers(struct rev_info *opt, const char *name,
        if (opt->mime_boundary) {
                static char subject_buffer[1024];
                static char buffer[1024];
+               *need_8bit_cte_p = -1; /* NEVER */
                snprintf(subject_buffer, sizeof(subject_buffer) - 1,
                         "%s"
                         "MIME-Version: 1.0\n"
@@ -212,6 +217,7 @@ void show_log(struct rev_info *opt, const char *sep)
        int abbrev_commit = opt->abbrev_commit ? opt->abbrev : 40;
        const char *extra;
        const char *subject = NULL, *extra_headers = opt->extra_headers;
+       int need_8bit_cte = 0;
 
        opt->loginfo = NULL;
        if (!opt->verbose_header) {
@@ -255,7 +261,8 @@ void show_log(struct rev_info *opt, const char *sep)
 
        if (opt->commit_format == CMIT_FMT_EMAIL) {
                log_write_email_headers(opt, sha1_to_hex(commit->object.sha1),
-                                       &subject, &extra_headers);
+                                       &subject, &extra_headers,
+                                       &need_8bit_cte);
        } else if (opt->commit_format != CMIT_FMT_USERFORMAT) {
                fputs(diff_get_color_opt(&opt->diffopt, DIFF_COMMIT), stdout);
                if (opt->commit_format != CMIT_FMT_ONELINE)
@@ -299,9 +306,11 @@ void show_log(struct rev_info *opt, const char *sep)
         * And then the pretty-printed message itself
         */
        strbuf_init(&msgbuf, 0);
+       if (need_8bit_cte >= 0)
+               need_8bit_cte = has_non_ascii(opt->add_signoff);
        pretty_print_commit(opt->commit_format, commit, &msgbuf,
                            abbrev, subject, extra_headers, opt->date_mode,
-                           has_non_ascii(opt->add_signoff));
+                           need_8bit_cte);
 
        if (opt->add_signoff)
                append_signoff(&msgbuf, opt->add_signoff);