In install-cas be more liberal in parsing artifact identifiers

1 files changed, 24 insertions, 0 deletions

diff --git a/src/buildtool/common/artifact.cpp b/src/buildtool/common/artifact.cpp
new file mode 100644
index 00000000..fc3c5b6e
--- /dev/null
+++ b/src/buildtool/common/artifact.cpp
@@ -0,0 +1,24 @@
+#include "src/buildtool/common/artifact.hpp"
+
+#include <string>
+
+auto Artifact::ObjectInfo::LiberalFromString(std::string const& s) noexcept
+    -> Artifact::ObjectInfo {
+    std::istringstream iss(s);
+    std::string id{};
+    std::string size_str{"0"};
+    std::string type{"f"};
+    if (iss.peek() == '[') {
+        (void)iss.get();
+    }
+    std::getline(iss, id, ':');
+    if (not iss.eof()) {
+        std::getline(iss, size_str, ':');
+    }
+    if (not iss.eof()) {
+        std::getline(iss, type, ']');
+    }
+    auto size = static_cast<std::size_t>(std::atol(size_str.c_str()));
+    return Artifact::ObjectInfo{ArtifactDigest{id, size},
+                                FromChar(*type.c_str())};
+}