[PATCH] git-cvsimport-script: parse multidigit revisions.

[git.git] / diff.c

diff --git a/diff.c b/diff.c
index a720290..36bbda6 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -5,6 +5,7 @@
 #include <sys/wait.h>
 #include <signal.h>
 #include "cache.h"
+#include "quote.h"
 #include "diff.h"
 #include "diffcore.h"
 
@@ -40,42 +41,6 @@ static const char *external_diff(void)
        return external_diff_cmd;
 }
 
-/* Help to copy the thing properly quoted for the shell safety.
- * any single quote is replaced with '\'', and the caller is
- * expected to enclose the result within a single quote pair.
- *
- * E.g.
- *  original     sq_expand     result
- *  name     ==> name      ==> 'name'
- *  a b      ==> a b       ==> 'a b'
- *  a'b      ==> a'\''b    ==> 'a'\''b'
- */
-static char *sq_expand(const char *src)
-{
-       static char *buf = NULL;
-       int cnt, c;
-       const char *cp;
-       char *bp;
-
-       /* count bytes needed to store the quoted string. */
-       for (cnt = 1, cp = src; *cp; cnt++, cp++)
-               if (*cp == '\'')
-                       cnt += 3;
-
-       buf = xmalloc(cnt);
-       bp = buf;
-       while ((c = *src++)) {
-               if (c != '\'')
-                       *bp++ = c;
-               else {
-                       bp = strcpy(bp, "'\\''");
-                       bp += 4;
-               }
-       }
-       *bp = 0;
-       return buf;
-}
-
 static struct diff_tempfile {
        const char *name; /* filename external diff should read from */
        char hex[41];
@@ -167,16 +132,16 @@ static void builtin_diff(const char *name_a,
                         int complete_rewrite)
 {
        int i, next_at, cmd_size;
-       const char *diff_cmd = "diff -L'%s%s' -L'%s%s'";
-       const char *diff_arg  = "'%s' '%s'||:"; /* "||:" is to return 0 */
+       const char *diff_cmd = "diff -L%s%s -L%s%s";
+       const char *diff_arg  = "%s %s||:"; /* "||:" is to return 0 */
        const char *input_name_sq[2];
        const char *path0[2];
        const char *path1[2];
        const char *name_sq[2];
        char *cmd;
 
-       name_sq[0] = sq_expand(name_a);
-       name_sq[1] = sq_expand(name_b);
+       name_sq[0] = sq_quote(name_a);
+       name_sq[1] = sq_quote(name_b);
 
        /* diff_cmd and diff_arg have 6 %s in total which makes
         * the sum of these strings 12 bytes larger than required.
@@ -186,7 +151,7 @@ static void builtin_diff(const char *name_a,
        cmd_size = (strlen(diff_cmd) + strlen(diff_opts) +
                        strlen(diff_arg) - 9);
        for (i = 0; i < 2; i++) {
-               input_name_sq[i] = sq_expand(temp[i].name);
+               input_name_sq[i] = sq_quote(temp[i].name);
                if (!strcmp(temp[i].name, "/dev/null")) {
                        path0[i] = "/dev/null";
                        path1[i] = "";