ui-plain.c: Use a context structure in walk_tree()

Do not misuse global variables to save the context. Instead, use the
context pointer which was designed to share information between a
read_tree_fn and the caller.

Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>

1 files changed, 20 insertions, 13 deletions

diff --git a/ui-plain.c b/ui-plain.c
index c90ae59..8ef4ec6 100644
--- a/ui-plain.c
+++ b/ui-plain.c
@@ -11,8 +11,10 @@
 #include "html.h"
 #include "ui-shared.h"
 
-int match_baselen;
-int match;
+struct walk_tree_context {
+        int match_baselen;
+        int match;
+};
 
 static char *get_mimetype_from_file(const char *filename, const char *ext)
 {
@@ -166,18 +168,20 @@ static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
                      const char *pathname, unsigned mode, int stage,
                      void *cbdata)
 {
-        if (baselen == match_baselen) {
+        struct walk_tree_context *walk_tree_ctx = cbdata;
+
+        if (baselen == walk_tree_ctx->match_baselen) {
                 if (S_ISREG(mode)) {
                         if (print_object(sha1, pathname))
-                                match = 1;
+                                walk_tree_ctx->match = 1;
                 } else if (S_ISDIR(mode)) {
                         print_dir(sha1, base, baselen, pathname);
-                        match = 2;
+                        walk_tree_ctx->match = 2;
                         return READ_TREE_RECURSIVE;
                 }
-        } else if (baselen > match_baselen) {
+        } else if (baselen > walk_tree_ctx->match_baselen) {
                 print_dir_entry(sha1, base, baselen, pathname, mode);
-                match = 2;
+                walk_tree_ctx->match = 2;
         } else if (S_ISDIR(mode)) {
                 return READ_TREE_RECURSIVE;
         }
@@ -206,6 +210,9 @@ void cgit_print_plain(struct cgit_context *ctx)
                 .nr = 1,
                 .items = &path_items
         };
+        struct walk_tree_context walk_tree_ctx = {
+                .match = 0
+        };
 
         if (!rev)
                 rev = ctx->qry.head;
@@ -221,15 +228,15 @@ void cgit_print_plain(struct cgit_context *ctx)
         }
         if (!path_items.match) {
                 path_items.match = "";
-                match_baselen = -1;
+                walk_tree_ctx.match_baselen = -1;
                 print_dir(commit->tree->object.sha1, "", 0, "");
-                match = 2;
+                walk_tree_ctx.match = 2;
         }
         else
-                match_baselen = basedir_len(path_items.match);
-        read_tree_recursive(commit->tree, "", 0, 0, &paths, walk_tree, NULL);
-        if (!match)
+                walk_tree_ctx.match_baselen = basedir_len(path_items.match);
+        read_tree_recursive(commit->tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
+        if (!walk_tree_ctx.match)
                 html_status(404, "Not found", 0);
-        else if (match == 2)
+        else if (walk_tree_ctx.match == 2)
                 print_dir_tail();
 }