t: skip pack tests if not using SHA-1

diff --git a/xdiff/xemit.c b/xdiff/xemit.c
index 8c88dbde3827ce9d1b5e4f95287513514b80fac1..7778dc2b190f84fe2ab1e1539756a7e1f4254c3b 100644 (file)
--- a/xdiff/xemit.c
+++ b/xdiff/xemit.c
@@ -13,8 +13,8 @@
  *  Lesser General Public License for more details.
  *
  *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *  License along with this library; if not, see
+ *  <http://www.gnu.org/licenses/>.
  *
  *  Davide Libenzi <davidel@xmailserver.org>
  *
@@ -121,6 +121,12 @@ static long match_func_rec(xdfile_t *xdf, xdemitconf_t const *xecfg, long ri,
        return xecfg->find_func(rec, len, buf, sz, xecfg->find_func_priv);
 }
 
+static int is_func_rec(xdfile_t *xdf, xdemitconf_t const *xecfg, long ri)
+{
+       char dummy[1];
+       return match_func_rec(xdf, xecfg, ri, dummy, sizeof(dummy)) >= 0;
+}
+
 struct func_line {
        long len;
        char buf[80];
@@ -178,7 +184,6 @@ int xdl_emit_diff(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb,
 
                        /* Appended chunk? */
                        if (i1 >= xe->xdf1.nrec) {
-                               char dummy[1];
                                long i2 = xch->i2;
 
                                /*
@@ -186,8 +191,7 @@ int xdl_emit_diff(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb,
                                 * a whole function was added.
                                 */
                                while (i2 < xe->xdf2.nrec) {
-                                       if (match_func_rec(&xe->xdf2, xecfg, i2,
-                                               dummy, sizeof(dummy)) >= 0)
+                                       if (is_func_rec(&xe->xdf2, xecfg, i2))
                                                goto post_context_calculation;
                                        i2++;
                                }
@@ -200,6 +204,9 @@ int xdl_emit_diff(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb,
                        }
 
                        fs1 = get_func_line(xe, xecfg, NULL, i1, -1);
+                       while (fs1 > 0 && !is_empty_rec(&xe->xdf1, fs1 - 1) &&
+                              !is_func_rec(&xe->xdf1, xecfg, fs1 - 1))
+                               fs1--;
                        if (fs1 < 0)
                                fs1 = 0;
                        if (fs1 < s1) {