server: (router) add model management API (#23976)

* wip * server: (router) add SSE realtime updates API * nits * wip * add download API * add download api * update docs * add delete endpoint * fix std::terminate * fix crash * fix 2 * add tests * nits
2026-06-17 18:04:58 +02:00
parent b4024af6c2
commit 4b4d13ae72
16 changed files with 855 additions and 63 deletions
@@ -997,3 +997,87 @@ std::vector<common_cached_model_info> common_list_cached_models() {

    return result;
 }
+
+bool common_download_remove(const std::string & hf_repo_with_tag) {
+    namespace fs = std::filesystem;
+
+    auto [repo_id, tag] = common_download_split_repo_tag(hf_repo_with_tag);
+
+    if (tag.empty()) {
+        return hf_cache::remove_cached_repo(repo_id);
+    }
+
+    std::string tag_upper = tag;
+    for (char & c : tag_upper) {
+        c = (char) std::toupper((unsigned char) c);
+    }
+
+    auto files = hf_cache::get_cached_files(repo_id);
+    if (files.empty()) {
+        return false;
+    }
+
+    // collect snapshot entries whose tag matches
+    std::vector<fs::path> to_remove;
+    for (const auto & f : files) {
+        auto split = get_gguf_split_info(f.path);
+        if (split.tag == tag_upper) {
+            to_remove.emplace_back(f.local_path);
+        }
+    }
+
+    if (to_remove.empty()) {
+        return false;
+    }
+
+    // resolve blob paths from symlinks before deleting snapshot entries
+    std::vector<fs::path> blobs_to_check;
+    for (const auto & p : to_remove) {
+        std::error_code ec;
+        if (fs::is_symlink(p, ec)) {
+            auto target = fs::read_symlink(p, ec);
+            if (!ec) {
+                blobs_to_check.push_back((p.parent_path() / target).lexically_normal());
+            }
+        }
+    }
+
+    // remove snapshot entries
+    for (const auto & p : to_remove) {
+        std::error_code ec;
+        fs::remove(p, ec);
+        if (ec) {
+            LOG_WRN("%s: failed to remove %s: %s\n", __func__, p.string().c_str(), ec.message().c_str());
+        }
+    }
+
+    if (blobs_to_check.empty()) {
+        return true;
+    }
+
+    // collect blobs still referenced by remaining snapshot entries
+    std::unordered_set<std::string> still_referenced;
+    for (const auto & f : hf_cache::get_cached_files(repo_id)) {
+        fs::path p(f.local_path);
+        std::error_code ec;
+        if (fs::is_symlink(p, ec)) {
+            auto target = fs::read_symlink(p, ec);
+            if (!ec) {
+                still_referenced.insert((p.parent_path() / target).lexically_normal().string());
+            }
+        }
+    }
+
+    // remove orphaned blobs
+    for (const auto & blob : blobs_to_check) {
+        if (still_referenced.find(blob.string()) == still_referenced.end()) {
+            std::error_code ec;
+            fs::remove(blob, ec);
+            if (ec) {
+                LOG_WRN("%s: failed to remove blob %s: %s\n", __func__, blob.string().c_str(), ec.message().c_str());
+            }
+        }
+    }
+
+    return true;
+}