bool deps_resolver_t::try_roll_forward(const deps_entry_t& entry,
const pal::string_t& probe_dir,
bool patch_roll_fwd,
bool prerelease_roll_fwd,
pal::string_t* candidate)
{
trace::verbose(_X("Attempting a roll forward for [%s/%s/%s] in [%s]"), entry.library_name.c_str(), entry.library_version.c_str(), entry.relative_path.c_str(), probe_dir.c_str());
const pal::string_t& lib_ver = entry.library_version;
fx_ver_t cur_ver(-1, -1, -1);
if (!fx_ver_t::parse(lib_ver, &cur_ver, false))
{
trace::verbose(_X("No roll forward as specified version [%s] could not be parsed"), lib_ver.c_str());
return false;
}
pal::string_t path = probe_dir;
append_path(&path, entry.library_name.c_str());
pal::string_t max_str = lib_ver;
if (cur_ver.is_prerelease() && prerelease_roll_fwd)
{
pal::string_t maj_min_pat_star = cur_ver.prerelease_glob();
pal::string_t cache_key = path;
append_path(&cache_key, maj_min_pat_star.c_str());
if (m_prerelease_roll_forward_cache.count(cache_key))
{
max_str = m_prerelease_roll_forward_cache[cache_key];
trace::verbose(_X("Found cached roll forward version [%s] -> [%s]"), lib_ver.c_str(), max_str.c_str());
}
else
{
try_prerelease_roll_forward_in_dir(path, cur_ver, &max_str);
m_prerelease_roll_forward_cache[cache_key] = max_str;
}
}
if (!cur_ver.is_prerelease() && patch_roll_fwd)
{
// Extract glob string of the form: 1.0.* from the version 1.0.0-prerelease-00001.
pal::string_t maj_min_star = cur_ver.patch_glob();
pal::string_t cache_key = path;
append_path(&cache_key, maj_min_star.c_str());
if (m_patch_roll_forward_cache.count(cache_key))
{
max_str = m_patch_roll_forward_cache[cache_key];
trace::verbose(_X("Found cached roll forward version [%s] -> [%s]"), lib_ver.c_str(), max_str.c_str());
}
else
{
try_patch_roll_forward_in_dir(path, cur_ver, &max_str);
m_patch_roll_forward_cache[cache_key] = max_str;
}
}
append_path(&path, max_str.c_str());
return entry.to_rel_path(path, candidate);
}
/**
* Probe helper for a deps entry. Lookup all probe configurations and then
* lookup in the directory where the deps file is present. For app dirs,
* 1. RID specific entries are present in the package relative structure.
* 2. Non-RID entries are present in the directory path.
*/
bool deps_resolver_t::probe_deps_entry(const deps_entry_t& entry, const pal::string_t& deps_dir, pal::string_t* candidate)
{
if (probe_entry_in_configs(entry, candidate))
{
return true;
}
if (entry.is_rid_specific && entry.to_rel_path(deps_dir, candidate))
{
return true;
}
if (!entry.is_rid_specific && entry.to_dir_path(deps_dir, candidate))
{
return true;
}
return false;
}
/**
* Given a deps entry, do a probe (lookup) for the file, based on the probe config.
* -- When crossgen-ed folders are looked up, look up only "runtime" (managed) assets.
* -- When servicing directories are looked up, look up only if the deps file marks the entry as serviceable.
* -- When a deps json based probe is performed, the deps entry's package name and version must match.
* -- When looking into a published dir, for rid specific assets lookup rid split folders; for non-rid assets lookup the layout dir.
*/
bool deps_resolver_t::probe_deps_entry(const deps_entry_t& entry, const pal::string_t& deps_dir, int fx_level, pal::string_t* candidate)
{
candidate->clear();
for (const auto& config : m_probes)
{
trace::verbose(_X(" Considering entry [%s/%s/%s], probe dir [%s], probe fx level:%d, entry fx level:%d"),
entry.library_name.c_str(), entry.library_version.c_str(), entry.asset.relative_path.c_str(), config.probe_dir.c_str(), config.fx_level, fx_level);
if (config.only_serviceable_assets && !entry.is_serviceable)
{
trace::verbose(_X(" Skipping... not serviceable asset"));
continue;
}
if (config.only_runtime_assets && entry.asset_type != deps_entry_t::asset_types::runtime)
{
trace::verbose(_X(" Skipping... not runtime asset"));
continue;
}
pal::string_t probe_dir = config.probe_dir;
if (config.is_fx())
{
assert(config.fx_level > 0);
// Only probe frameworks that are the same level or lower than the current entry because
// a lower-level fx should not have a dependency on a higher-level fx and because starting
// with fx_level allows it to override a higher-level fx location if the entry is newer.
// Note that fx_level 0 is the highest level (the app)
if (fx_level <= config.fx_level)
{
// If the deps json has the package name and version, then someone has already done rid selection and
// put the right asset in the dir. So checking just package name and version would suffice.
// No need to check further for the exact asset relative sub path.
if (config.probe_deps_json->has_package(entry.library_name, entry.library_version) && entry.to_dir_path(probe_dir, candidate))
{
trace::verbose(_X(" Probed deps json and matched '%s'"), candidate->c_str());
return true;
}
}
trace::verbose(_X(" Skipping... not found in deps json."));
}
else if (config.is_app())
{
// This is a published dir probe, so look up rid specific assets in the rid folders.
assert(config.fx_level == 0);
if (fx_level <= config.fx_level)
{
if (entry.is_rid_specific)
{
if (entry.to_rel_path(deps_dir, candidate))
{
trace::verbose(_X(" Probed deps dir and matched '%s'"), candidate->c_str());
return true;
}
}
else
{
// Non-rid assets, lookup in the published dir.
if (entry.to_dir_path(deps_dir, candidate))
{
trace::verbose(_X(" Probed deps dir and matched '%s'"), candidate->c_str());
return true;
}
}
}
trace::verbose(_X(" Skipping... not found in deps dir '%s'"), deps_dir.c_str());
}
else if (entry.to_full_path(probe_dir, candidate))
{
trace::verbose(_X(" Probed package dir and matched '%s'"), candidate->c_str());
return true;
}
trace::verbose(_X(" Skipping... not found in probe dir '%s'"), probe_dir.c_str());
// continue to try next probe config
}
return false;
}