diff: introduce diff.submodule configuration variable

diff --git a/strbuf.c b/strbuf.c
index 60e5e598dd4e49e8b2fd37b0bbb5040639b4411d..4b9e30cadcd1ff45e7d4f23b210b22006445da91 100644 (file)
--- a/strbuf.c
+++ b/strbuf.c
@@ -44,7 +44,9 @@ void strbuf_release(struct strbuf *sb)
 
 char *strbuf_detach(struct strbuf *sb, size_t *sz)
 {
-       char *res = sb->alloc ? sb->buf : NULL;
+       char *res;
+       strbuf_grow(sb, 0);
+       res = sb->buf;
        if (sz)
                *sz = sb->len;
        strbuf_init(sb, 0);
@@ -383,6 +385,22 @@ int strbuf_getline(struct strbuf *sb, FILE *fp, int term)
        return 0;
 }
 
+int strbuf_getwholeline_fd(struct strbuf *sb, int fd, int term)
+{
+       strbuf_reset(sb);
+
+       while (1) {
+               char ch;
+               ssize_t len = xread(fd, &ch, 1);
+               if (len <= 0)
+                       return EOF;
+               strbuf_addch(sb, ch);
+               if (ch == term)
+                       break;
+       }
+       return 0;
+}
+
 int strbuf_read_file(struct strbuf *sb, const char *path, size_t hint)
 {
        int fd, len;
@@ -398,6 +416,20 @@ int strbuf_read_file(struct strbuf *sb, const char *path, size_t hint)
        return len;
 }
 
+void strbuf_add_lines(struct strbuf *out, const char *prefix,
+                     const char *buf, size_t size)
+{
+       while (size) {
+               const char *next = memchr(buf, '\n', size);
+               next = next ? (next + 1) : (buf + size);
+               strbuf_addstr(out, prefix);
+               strbuf_add(out, buf, next - buf);
+               size -= next - buf;
+               buf = next;
+       }
+       strbuf_complete_line(out);
+}
+
 static int is_rfc3986_reserved(char ch)
 {
        switch (ch) {
@@ -415,8 +447,8 @@ static int is_rfc3986_unreserved(char ch)
                ch == '-' || ch == '_' || ch == '.' || ch == '~';
 }
 
-void strbuf_add_urlencode(struct strbuf *sb, const char *s, size_t len,
-                         int reserved)
+static void strbuf_add_urlencode(struct strbuf *sb, const char *s, size_t len,
+                                int reserved)
 {
        strbuf_grow(sb, len);
        while (len--) {
@@ -434,3 +466,27 @@ void strbuf_addstr_urlencode(struct strbuf *sb, const char *s,
 {
        strbuf_add_urlencode(sb, s, strlen(s), reserved);
 }
+
+int printf_ln(const char *fmt, ...)
+{
+       int ret;
+       va_list ap;
+       va_start(ap, fmt);
+       ret = vprintf(fmt, ap);
+       va_end(ap);
+       if (ret < 0 || putchar('\n') == EOF)
+               return -1;
+       return ret + 1;
+}
+
+int fprintf_ln(FILE *fp, const char *fmt, ...)
+{
+       int ret;
+       va_list ap;
+       va_start(ap, fmt);
+       ret = vfprintf(fp, fmt, ap);
+       va_end(ap);
+       if (ret < 0 || putc('\n', fp) == EOF)
+               return -1;
+       return ret + 1;
+}