fast-import.c: fix regression due to strbuf conversion

diff --git a/convert.c b/convert.c
index 508d30b2f162b5d4dd8ad119d456dc6b32d21d87..aa95834eb3e3f55a2bcb8e6c6f8258f4a57b594e 100644 (file)
--- a/convert.c
+++ b/convert.c
@@ -110,7 +110,9 @@ static int crlf_to_git(const char *path, const char *src, size_t len,
                        return 0;
        }
 
-       strbuf_grow(buf, len);
+       /* only grow if not in place */
+       if (strbuf_avail(buf) + buf->len < len)
+               strbuf_grow(buf, len - buf->len);
        dst = buf->buf;
        if (action == CRLF_GUESS) {
                /*
@@ -168,7 +170,7 @@ static int crlf_to_worktree(const char *path, const char *src, size_t len,
 
        /* are we "faking" in place editing ? */
        if (src == buf->buf)
-               to_free = strbuf_detach(buf);
+               to_free = strbuf_detach(buf, NULL);
 
        strbuf_grow(buf, len + stats.lf - stats.crlf);
        for (;;) {
@@ -281,20 +283,19 @@ static int apply_filter(const char *path, const char *src, size_t len,
                ret = 0;
        }
        if (close(pipe_feed[0])) {
-               ret = error("read from external filter %s failed", cmd);
+               error("read from external filter %s failed", cmd);
                ret = 0;
        }
        status = finish_command(&child_process);
        if (status) {
-               ret = error("external filter %s failed %d", cmd, -status);
+               error("external filter %s failed %d", cmd, -status);
                ret = 0;
        }
 
        if (ret) {
-               *dst = nbuf;
-       } else {
-               strbuf_release(&nbuf);
+               strbuf_swap(dst, &nbuf);
        }
+       strbuf_release(&nbuf);
        return ret;
 }
 
@@ -323,13 +324,8 @@ static int read_convert_config(const char *var, const char *value)
                if (!strncmp(drv->name, name, namelen) && !drv->name[namelen])
                        break;
        if (!drv) {
-               char *namebuf;
                drv = xcalloc(1, sizeof(struct convert_driver));
-               namebuf = xmalloc(namelen + 1);
-               memcpy(namebuf, name, namelen);
-               namebuf[namelen] = 0;
-               drv->name = namebuf;
-               drv->next = NULL;
+               drv->name = xmemdupz(name, namelen);
                *user_convert_tail = drv;
                user_convert_tail = &(drv->next);
        }
@@ -427,7 +423,9 @@ static int ident_to_git(const char *path, const char *src, size_t len,
        if (!ident || !count_ident(src, len))
                return 0;
 
-       strbuf_grow(buf, len);
+       /* only grow if not in place */
+       if (strbuf_avail(buf) + buf->len < len)
+               strbuf_grow(buf, len - buf->len);
        dst = buf->buf;
        for (;;) {
                dollar = memchr(src, '$', len);
@@ -469,7 +467,7 @@ static int ident_to_worktree(const char *path, const char *src, size_t len,
 
        /* are we "faking" in place editing ? */
        if (src == buf->buf)
-               to_free = strbuf_detach(buf);
+               to_free = strbuf_detach(buf, NULL);
        hash_sha1_file(src, len, "blob", sha1);
 
        strbuf_grow(buf, len + cnt * 43);