Add offline feature to sqlx

Cargo.lock

@@ -423,6 +423,9 @@ name = "either"
 version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
+dependencies = [
+ "serde",
+]
 
 [[package]]
 name = "flate2"
@@ -1871,6 +1874,7 @@ dependencies = [
  "once_cell",
  "parking_lot",
  "percent-encoding",
+ "serde",
  "sha2",
  "smallvec",
  "sqlformat",
@@ -1893,9 +1897,12 @@ dependencies = [
  "either",
  "futures",
  "heck",
+ "hex",
  "once_cell",
  "proc-macro2",
  "quote",
+ "serde",
+ "serde_json",
  "sha2",
  "sqlx-core",
  "sqlx-rt",

Cargo.toml

@@ -11,7 +11,7 @@ edition = "2018"
 juniper = "^0.15"
 juniper_warp = "^0.6"
 juniper-from-schema = { git = "https://github.com/davidpdrsn/juniper-from-schema" }
-sqlx = { version = "^0.5", features = ["runtime-tokio-native-tls", "uuid", "chrono", "macros"] }
+sqlx = { version = "^0.5", features = ["runtime-tokio-native-tls", "uuid", "chrono", "macros", "offline"] }
 warp = { version = "^0.3", default-features = false, features = ["compression", "tls"] }
 structopt = { version = "^0.3", features = ["wrap_help"] }
 toml = "^0.5"