shell: do not play duplicated definition games to shrink the executable

diff --git a/patch-id.c b/patch-id.c
index 0bd640cc481eddc72e37a864b115f4d6ba7883b1..9349bc5580456b378d41da7cc2518e4fa9a7e81a 100644 (file)
--- a/patch-id.c
+++ b/patch-id.c
@@ -1,4 +1,3 @@
-#include <ctype.h>
 #include "cache.h"
 
 static void flush_current_id(int patchlen, unsigned char *id, SHA_CTX *c)
@@ -43,10 +42,12 @@ static void generate_id_list(void)
 
                if (!memcmp(line, "diff-tree ", 10))
                        p += 10;
+               else if (!memcmp(line, "commit ", 7))
+                       p += 7;
 
                if (!get_sha1_hex(p, n)) {
                        flush_current_id(patchlen, sha1, &ctx);
-                       memcpy(sha1, n, 20);
+                       hashcpy(sha1, n);
                        patchlen = 0;
                        continue;
                }
@@ -55,6 +56,10 @@ static void generate_id_list(void)
                if (!patchlen && memcmp(line, "diff ", 5))
                        continue;
 
+               /* Ignore git-diff index header */
+               if (!memcmp(line, "index ", 6))
+                       continue;
+
                /* Ignore line numbers when computing the SHA1 of the patch */
                if (!memcmp(line, "@@ -", 4))
                        continue;
@@ -67,7 +72,7 @@ static void generate_id_list(void)
        flush_current_id(patchlen, sha1, &ctx);
 }
 
-static const char patch_id_usage[] = "usage: git-patch-id < patch";
+static const char patch_id_usage[] = "git-patch-id < patch";
 
 int main(int argc, char **argv)
 {
@@ -76,4 +81,4 @@ int main(int argc, char **argv)
 
        generate_id_list();
        return 0;
-}      
+}