filter-branch: add git_commit_non_empty_tree and --prune-empty.

diff --git a/convert.c b/convert.c
index 1c66844783ec3baa1373b3f0c41ea080bc7354fe..1816e977b7b13782003fc78a9de9b47cd3554a32 100644 (file)
--- a/convert.c
+++ b/convert.c
@@ -61,6 +61,10 @@ static void gather_stats(const char *buf, unsigned long size, struct text_stat *
                else
                        stats->printable++;
        }
+
+       /* If file ends with EOF then don't count this EOF as non-printable. */
+       if (size >= 1 && buf[size-1] == '\032')
+               stats->nonprintable--;
 }
 
 /*
@@ -277,7 +281,7 @@ static int apply_filter(const char *path, const char *src, size_t len,
         * (child --> cmd) --> us
         */
        int ret = 1;
-       struct strbuf nbuf;
+       struct strbuf nbuf = STRBUF_INIT;
        struct async async;
        struct filter_params params;
 
@@ -295,7 +299,6 @@ static int apply_filter(const char *path, const char *src, size_t len,
        if (start_async(&async))
                return 0;       /* error was already reported */
 
-       strbuf_init(&nbuf, 0);
        if (strbuf_read(&nbuf, async.out, len) < 0) {
                error("read from external filter %s failed", cmd);
                ret = 0;
@@ -319,8 +322,8 @@ static int apply_filter(const char *path, const char *src, size_t len,
 static struct convert_driver {
        const char *name;
        struct convert_driver *next;
-       char *smudge;
-       char *clean;
+       const char *smudge;
+       const char *clean;
 } *user_convert, **user_convert_tail;
 
 static int read_convert_config(const char *var, const char *value, void *cb)
@@ -358,19 +361,12 @@ static int read_convert_config(const char *var, const char *value, void *cb)
         * The command-line will not be interpolated in any way.
         */
 
-       if (!strcmp("smudge", ep)) {
-               if (!value)
-                       return config_error_nonbool(var);
-               drv->smudge = strdup(value);
-               return 0;
-       }
+       if (!strcmp("smudge", ep))
+               return git_config_string(&drv->smudge, var, value);
+
+       if (!strcmp("clean", ep))
+               return git_config_string(&drv->clean, var, value);
 
-       if (!strcmp("clean", ep)) {
-               if (!value)
-                       return config_error_nonbool(var);
-               drv->clean = strdup(value);
-               return 0;
-       }
        return 0;
 }
 
@@ -576,7 +572,7 @@ int convert_to_git(const char *path, const char *src, size_t len,
        struct git_attr_check check[3];
        int crlf = CRLF_GUESS;
        int ident = 0, ret = 0;
-       char *filter = NULL;
+       const char *filter = NULL;
 
        setup_convert_check(check);
        if (!git_checkattr(path, ARRAY_SIZE(check), check)) {
@@ -606,7 +602,7 @@ int convert_to_working_tree(const char *path, const char *src, size_t len, struc
        struct git_attr_check check[3];
        int crlf = CRLF_GUESS;
        int ident = 0, ret = 0;
-       char *filter = NULL;
+       const char *filter = NULL;
 
        setup_convert_check(check);
        if (!git_checkattr(path, ARRAY_SIZE(check), check)) {