Make ignore_non_trailer take a buf/len pair instead of struct strbuf.

Signed-off-by: Jonathan Tan <jonathanta...@google.com>
---
 builtin/commit.c |  2 +-
 commit.c         | 22 +++++++++++-----------
 commit.h         |  2 +-
 trailer.c        |  2 +-
 4 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/builtin/commit.c b/builtin/commit.c
index 8976c3d..887ccc7 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -790,7 +790,7 @@ static int prepare_to_commit(const char *index_file, const 
char *prefix,
                strbuf_stripspace(&sb, 0);
 
        if (signoff)
-               append_signoff(&sb, ignore_non_trailer(&sb), 0);
+               append_signoff(&sb, ignore_non_trailer(sb.buf, sb.len), 0);
 
        if (fwrite(sb.buf, 1, sb.len, s->fp) < sb.len)
                die_errno(_("could not write commit template"));
diff --git a/commit.c b/commit.c
index 856fd4a..2cf8515 100644
--- a/commit.c
+++ b/commit.c
@@ -1649,7 +1649,7 @@ const char *find_commit_header(const char *msg, const 
char *key, size_t *out_len
 }
 
 /*
- * Inspect sb and determine the true "end" of the log message, in
+ * Inspect the given string and determine the true "end" of the log message, in
  * order to find where to put a new Signed-off-by: line.  Ignored are
  * trailing comment lines and blank lines, and also the traditional
  * "Conflicts:" block that is not commented out, so that we can use
@@ -1659,37 +1659,37 @@ const char *find_commit_header(const char *msg, const 
char *key, size_t *out_len
  * Returns the number of bytes from the tail to ignore, to be fed as
  * the second parameter to append_signoff().
  */
-int ignore_non_trailer(struct strbuf *sb)
+int ignore_non_trailer(const char *buf, size_t len)
 {
        int boc = 0;
        int bol = 0;
        int in_old_conflicts_block = 0;
 
-       while (bol < sb->len) {
-               char *next_line;
+       while (bol < len) {
+               const char *next_line = memchr(buf + bol, '\n', len - bol);
 
-               if (!(next_line = memchr(sb->buf + bol, '\n', sb->len - bol)))
-                       next_line = sb->buf + sb->len;
+               if (!next_line)
+                       next_line = buf + len;
                else
                        next_line++;
 
-               if (sb->buf[bol] == comment_line_char || sb->buf[bol] == '\n') {
+               if (buf[bol] == comment_line_char || buf[bol] == '\n') {
                        /* is this the first of the run of comments? */
                        if (!boc)
                                boc = bol;
                        /* otherwise, it is just continuing */
-               } else if (starts_with(sb->buf + bol, "Conflicts:\n")) {
+               } else if (starts_with(buf + bol, "Conflicts:\n")) {
                        in_old_conflicts_block = 1;
                        if (!boc)
                                boc = bol;
-               } else if (in_old_conflicts_block && sb->buf[bol] == '\t') {
+               } else if (in_old_conflicts_block && buf[bol] == '\t') {
                        ; /* a pathname in the conflicts block */
                } else if (boc) {
                        /* the previous was not trailing comment */
                        boc = 0;
                        in_old_conflicts_block = 0;
                }
-               bol = next_line - sb->buf;
+               bol = next_line - buf;
        }
-       return boc ? sb->len - boc : 0;
+       return boc ? len - boc : 0;
 }
diff --git a/commit.h b/commit.h
index afd14f3..9c12abb 100644
--- a/commit.h
+++ b/commit.h
@@ -355,7 +355,7 @@ extern const char *find_commit_header(const char *msg, 
const char *key,
                                      size_t *out_len);
 
 /* Find the end of the log message, the right place for a new trailer. */
-extern int ignore_non_trailer(struct strbuf *sb);
+extern int ignore_non_trailer(const char *buf, size_t len);
 
 typedef void (*each_mergetag_fn)(struct commit *commit, struct 
commit_extra_header *extra,
                                 void *cb_data);
diff --git a/trailer.c b/trailer.c
index 0ee634f..04edab2 100644
--- a/trailer.c
+++ b/trailer.c
@@ -836,7 +836,7 @@ static int find_trailer_end(struct strbuf **lines, int 
patch_start)
 
        for (i = 0; i < patch_start; i++)
                strbuf_addbuf(&sb, lines[i]);
-       ignore_bytes = ignore_non_trailer(&sb);
+       ignore_bytes = ignore_non_trailer(sb.buf, sb.len);
        strbuf_release(&sb);
        for (i = patch_start - 1; i >= 0 && ignore_bytes > 0; i--)
                ignore_bytes -= lines[i]->len;
-- 
2.8.0.rc3.226.g39d4020

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