-X and -I options implementation

[Serj Kalichev]

Hello
Consider this patch that implements -X and -I options for filterdiff 
utility.

--- orig/patchutils-0.2.31/doc/filterdiff.1    2005-06-13 
21:41:07.000000000 +0400
+++ work/patchutils-0.2.31/doc/filterdiff.1    2008-06-06 
15:48:48.000000000 +0400
@@ -61,10 +61,18 @@ You can use both unified and context for
 Include only files matching \fIPATTERN\fR\&. All other lines in the 
input are suppressed\&.
 
 .TP
+\fB\-I\fR \fIFILE\fR
+Include only files that match any \fIPATTERN\fR in \fIFILE\fR\&. All 
other lines in the input are suppressed\&.
+
+.TP
 \fB\-x\fR \fIPATTERN\fR
 Exclude files matching \fIPATTERN\fR\&. All other lines in the input 
are displayed\&.
 
 .TP
+\fB\-X\fR \fIFILE\fR
+Exclude files that match any \fIPATTERN\fR in \fIFILE\fR\&. All other 
lines in the input are displayed\&.
+
+.TP
 \fB\-p\fR \fIn\fR
 When matching, ignore the first \fIn\fR components of the pathname\&.
 
--- orig/patchutils-0.2.31/src/filterdiff.c    2004-11-29 
18:14:50.000000000 +0300
+++ work/patchutils-0.2.31/src/filterdiff.c    2008-06-06 
15:54:35.000000000 +0400
@@ -1012,7 +1012,9 @@ static int filterdiff (FILE *f, const ch
 const char * syntax_str =
 "Options:\n"
 "  -x PAT    exclude files matching PAT\n"
+"  -X FILE   exclude files that match any pattern in FILE\n"
 "  -i PAT    include only files matching PAT\n"
+"  -I FILE   include only files that match any pattern in FILE\n"
 "  --hunks=H, -# H\n"
 "            include only hunks in range H\n"
 "  --lines=L include only hunks with (original) lines in range L\n"
@@ -1309,9 +1311,15 @@ int main (int argc, char *argv[])
         case 'x':
             patlist_add (&pat_exclude, optarg);
             break;
+        case 'X':
+            patlist_add_file (&pat_exclude, optarg);
+            break;
         case 'i':
             patlist_add (&pat_include, optarg);
             break;
+        case 'I':
+            patlist_add_file (&pat_include, optarg);
+            break;
         case 'z':
             unzip = 1;
             break;
--- orig/patchutils-0.2.31/src/util.c    2004-06-07 18:07:46.000000000 +0400
+++ work/patchutils-0.2.31/src/util.c    2008-06-06 15:59:25.000000000 +0400
@@ -34,6 +34,7 @@
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
+#include <limits.h>
 #ifdef HAVE_UNISTD_H
 # include <unistd.h>
 #endif /* HAVE_UNISTD_H */
@@ -109,6 +110,28 @@ void patlist_add(struct patlist **dst, c
     *dst = item;
 }
 
+void patlist_add_file(struct patlist **dst, const char *fn)
+{
+    FILE *fd;
+    char buf[PATH_MAX];
+    size_t len;
+   
+    fd = fopen (fn, "r");
+    if (NULL == fd)
+        return;
+
+    while (fgets (buf, sizeof(buf), fd)) {
+        len = strlen(buf);
+        if (len <= 1) /* only '\n' presents */
+            continue;
+        /* Remove '\n' from pattern */
+        if ('\n' == buf[len - 1])
+            buf[len - 1] = '\0';
+        patlist_add (dst, buf);
+    }
+    fclose (fd);
+}
+
 int patlist_match(struct patlist *list, const char *s)
 {
     while (list) {
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