Merge branch 'jh/memihash-opt' into maint

diff --git a/commit.c b/commit.c
index 856fd4aeeff654c45ba0a6149f9db2c22806e0cb..c14ddf191fbf047607699e562fd85c8046932efb 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -11,6 +11,7 @@
 #include "commit-slab.h"
 #include "prio-queue.h"
 #include "sha1-lookup.h"
+#include "wt-status.h"
 
 static struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **);
 
@@ -415,8 +416,7 @@ int find_commit_subject(const char *commit_buffer, const char **subject)
                p++;
        if (*p) {
                p = skip_blank_lines(p + 2);
-               for (eol = p; *eol && *eol != '\n'; eol++)
-                       ; /* do nothing */
+               eol = strchrnul(p, '\n');
        } else
                eol = p;
 
@@ -1308,11 +1308,11 @@ void for_each_mergetag(each_mergetag_fn fn, struct commit *commit, void *data)
 
 static inline int standard_header_field(const char *field, size_t len)
 {
-       return ((len == 4 && !memcmp(field, "tree ", 5)) ||
-               (len == 6 && !memcmp(field, "parent ", 7)) ||
-               (len == 6 && !memcmp(field, "author ", 7)) ||
-               (len == 9 && !memcmp(field, "committer ", 10)) ||
-               (len == 8 && !memcmp(field, "encoding ", 9)));
+       return ((len == 4 && !memcmp(field, "tree", 4)) ||
+               (len == 6 && !memcmp(field, "parent", 6)) ||
+               (len == 6 && !memcmp(field, "author", 6)) ||
+               (len == 9 && !memcmp(field, "committer", 9)) ||
+               (len == 8 && !memcmp(field, "encoding", 8)));
 }
 
 static int excluded_header_field(const char *field, size_t len, const char **exclude)
@@ -1322,8 +1322,7 @@ static int excluded_header_field(const char *field, size_t len, const char **exc
 
        while (*exclude) {
                size_t xlen = strlen(*exclude);
-               if (len == xlen &&
-                   !memcmp(field, *exclude, xlen) && field[xlen] == ' ')
+               if (len == xlen && !memcmp(field, *exclude, xlen))
                        return 1;
                exclude++;
        }
@@ -1354,12 +1353,11 @@ static struct commit_extra_header *read_commit_extra_header_lines(
                strbuf_reset(&buf);
                it = NULL;
 
-               eof = strchr(line, ' ');
-               if (next <= eof)
+               eof = memchr(line, ' ', next - line);
+               if (!eof)
                        eof = next;
-
-               if (standard_header_field(line, eof - line) ||
-                   excluded_header_field(line, eof - line, exclude))
+               else if (standard_header_field(line, eof - line) ||
+                        excluded_header_field(line, eof - line, exclude))
                        continue;
 
                it = xcalloc(1, sizeof(*it));
@@ -1649,47 +1647,47 @@ 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
- * "git commit -s --amend" on an existing commit that forgot to remove
- * it.
+ * trailing comment lines and blank lines.  To support "git commit -s
+ * --amend" on an existing commit, we also ignore "Conflicts:".  To
+ * support "git commit -v", we truncate at cut lines.
  *
  * 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;
+       size_t cutoff = wt_status_locate_end(buf, len);
 
-       while (bol < sb->len) {
-               char *next_line;
+       while (bol < cutoff) {
+               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 : len - cutoff;
 }