ref-filter: factor out the parsing of sorting atoms

diff --git a/alias.c b/alias.c
index 3b90397a99d9f7ed4a0c1c5a83f5e69c879e752f..39f622e4141576b1170131f6c4b14316becb1a71 100644 (file)
--- a/alias.c
+++ b/alias.c
@@ -1,14 +1,29 @@
 #include "cache.h"
+#include "config.h"
+
+struct config_alias_data {
+       const char *alias;
+       char *v;
+};
+
+static int config_alias_cb(const char *key, const char *value, void *d)
+{
+       struct config_alias_data *data = d;
+       const char *p;
+
+       if (skip_prefix(key, "alias.", &p) && !strcmp(p, data->alias))
+               return git_config_string((const char **)&data->v, key, value);
+
+       return 0;
+}
 
 char *alias_lookup(const char *alias)
 {
-       char *v = NULL;
-       struct strbuf key = STRBUF_INIT;
-       strbuf_addf(&key, "alias.%s", alias);
-       if (git_config_key_is_valid(key.buf))
-               git_config_get_string(key.buf, &v);
-       strbuf_release(&key);
-       return v;
+       struct config_alias_data data = { alias, NULL };
+
+       read_early_config(config_alias_cb, &data);
+
+       return data.v;
 }
 
 #define SPLIT_CMDLINE_BAD_ENDING 1
@@ -47,8 +62,7 @@ int split_cmdline(char *cmdline, const char ***argv)
                                src++;
                                c = cmdline[src];
                                if (!c) {
-                                       free(*argv);
-                                       *argv = NULL;
+                                       FREE_AND_NULL(*argv);
                                        return -SPLIT_CMDLINE_BAD_ENDING;
                                }
                        }
@@ -60,8 +74,7 @@ int split_cmdline(char *cmdline, const char ***argv)
        cmdline[dst] = 0;
 
        if (quoted) {
-               free(*argv);
-               *argv = NULL;
+               FREE_AND_NULL(*argv);
                return -SPLIT_CMDLINE_UNCLOSED_QUOTE;
        }