huge refactor of rust modules/files

Taking advantage of new Rust 2018 crate/module path changes, and
re-organizing things. Somewhat optimistic this could help with partial
rebuild speed also.

1 files changed, 55 insertions, 0 deletions

diff --git a/rust/src/errors.rs b/rust/src/errors.rs
new file mode 100644
index 00000000..0b966e93
--- /dev/null
+++ b/rust/src/errors.rs
@@ -0,0 +1,55 @@
+//! Crate-specific Result, Error, and ErrorKind types (using `error_chain`)
+
+error_chain! {
+    foreign_links { Fmt(::std::fmt::Error);
+                    Diesel(::diesel::result::Error);
+                    R2d2(::diesel::r2d2::Error);
+                    Uuid(::uuid::ParseError);
+                    Io(::std::io::Error) #[cfg(unix)];
+                    Serde(::serde_json::Error);
+                    Utf8Decode(::std::string::FromUtf8Error);
+                    StringDecode(::data_encoding::DecodeError);
+    }
+    errors {
+        InvalidFatcatId(id: String) {
+            description("invalid fatcat identifier syntax")
+            display("invalid fatcat identifier (expect 26-char base32 encoded): {}", id)
+        }
+        MalformedExternalId(id: String) {
+            description("external identifier doesn't match required pattern")
+            display("external identifier doesn't match required pattern: {}", id)
+        }
+        MalformedChecksum(hash: String) {
+            description("checksum doesn't match required pattern (hex encoding)")
+            display("checksum doesn't match required pattern (hex encoding): {}", hash)
+        }
+        NotInControlledVocabulary(word: String) {
+            description("word or type not correct for controlled vocabulary")
+            display("word or type not correct for controlled vocabulary")
+        }
+        EditgroupAlreadyAccepted(id: String) {
+            description("editgroup was already accepted")
+            display("attempted to accept or mutate an editgroup which was already accepted: {}", id)
+        }
+        MissingOrMultipleExternalId(message: String) {
+            description("external identifiers missing or multiple specified")
+            display("external identifiers missing or multiple specified; please supply exactly one")
+        }
+        InvalidEntityStateTransform(message: String) {
+            description("Invalid Entity State Transform")
+            display("tried to mutate an entity which was not in an appropriate state: {}", message)
+        }
+        InvalidCredentials(message: String) {
+            description("auth token was missing, expired, revoked, or corrupt")
+            display("auth token was missing, expired, revoked, or corrupt: {}", message)
+        }
+        InsufficientPrivileges(message: String) {
+            description("editor account doesn't have authorization")
+            display("editor account doesn't have authorization: {}", message)
+        }
+        OtherBadRequest(message: String) {
+            description("catch-all error for bad or unallowed requests")
+            display("broke a constraint or made an otherwise invalid request: {}", message)
+        }
+    }
+}