t4008: abstract away SHA-1-specific constants

diff --git a/list-objects.c b/list-objects.c
index 0966cdc9fa8dd448aa9955a2fb5324ae8ebbf97d..168bef688a89489a9d88d3e1f773483dbc1c8860 100644 (file)
--- a/list-objects.c
+++ b/list-objects.c
@@ -9,6 +9,7 @@
 #include "list-objects.h"
 #include "list-objects-filter.h"
 #include "list-objects-filter-options.h"
+#include "packfile.h"
 
 static void process_blob(struct rev_info *revs,
                         struct blob *blob,
@@ -30,6 +31,20 @@ static void process_blob(struct rev_info *revs,
        if (obj->flags & (UNINTERESTING | SEEN))
                return;
 
+       /*
+        * Pre-filter known-missing objects when explicitly requested.
+        * Otherwise, a missing object error message may be reported
+        * later (depending on other filtering criteria).
+        *
+        * Note that this "--exclude-promisor-objects" pre-filtering
+        * may cause the actual filter to report an incomplete list
+        * of missing objects.
+        */
+       if (revs->exclude_promisor_objects &&
+           !has_object_file(&obj->oid) &&
+           is_promisor_object(&obj->oid))
+               return;
+
        pathlen = path->len;
        strbuf_addstr(path, name);
        if (filter_fn)
@@ -91,6 +106,8 @@ static void process_tree(struct rev_info *revs,
                all_entries_interesting: entry_not_interesting;
        int baselen = base->len;
        enum list_objects_filter_result r = LOFR_MARK_SEEN | LOFR_DO_SHOW;
+       int gently = revs->ignore_missing_links ||
+                    revs->exclude_promisor_objects;
 
        if (!revs->tree_objects)
                return;
@@ -98,9 +115,19 @@ static void process_tree(struct rev_info *revs,
                die("bad tree object");
        if (obj->flags & (UNINTERESTING | SEEN))
                return;
-       if (parse_tree_gently(tree, revs->ignore_missing_links) < 0) {
+       if (parse_tree_gently(tree, gently) < 0) {
                if (revs->ignore_missing_links)
                        return;
+
+               /*
+                * Pre-filter known-missing tree objects when explicitly
+                * requested.  This may cause the actual filter to report
+                * an incomplete list of missing objects.
+                */
+               if (revs->exclude_promisor_objects &&
+                   is_promisor_object(&obj->oid))
+                       return;
+
                die("bad tree object %s", oid_to_hex(&obj->oid));
        }