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changeset 639:89818a14648b rust tip

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- switch to using anyhow for errors, surf for http runs but surf has problems
author Matt Johnston <matt@ucc.asn.au>
date Thu, 28 Nov 2019 23:57:00 +0800
parents a9f353f488d0
children
files rust/Cargo.lock rust/Cargo.toml rust/src/config.rs rust/src/main.rs rust/src/params.rs rust/src/types.rs
diffstat 6 files changed, 674 insertions(+), 463 deletions(-) [+]
line wrap: on
line diff
--- a/rust/Cargo.lock	Sat Nov 09 11:35:59 2019 +0800
+++ b/rust/Cargo.lock	Thu Nov 28 23:57:00 2019 +0800
@@ -26,8 +26,50 @@
 
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+ "pin-utils 0.1.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
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+ "async-task 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-channel 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-deque 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "pin-project-lite 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-utils 0.1.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
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+]
 
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@@ -67,6 +109,11 @@
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@@ -100,12 +147,11 @@
 
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@@ -124,14 +170,6 @@
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@@ -139,9 +177,9 @@
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@@ -177,14 +215,6 @@
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@@ -204,6 +234,40 @@
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@@ -240,67 +304,162 @@
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+ "unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -382,41 +507,13 @@
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- "pin-project 0.4.0-alpha.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio 0.2.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-executor 0.2.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.2.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-net 0.2.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-sync 0.2.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-timer 0.3.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tower-make 0.1.0-alpha.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "tower-service 0.3.0-alpha.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "want 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "indexmap"
-version = "1.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-normalization 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -428,11 +525,38 @@
 ]
 
 [[package]]
+name = "isahc"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-channel 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curl 0.4.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curl-sys 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-io-preview 0.3.0-alpha.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-util-preview 0.3.0-alpha.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "http 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sluice 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "itoa"
 version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "js-sys"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "wasm-bindgen 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "kernel32-sys"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -442,6 +566,14 @@
 ]
 
 [[package]]
+name = "kv-log-macro"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "lazy_static"
 version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -450,9 +582,6 @@
 name = "lazy_static"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "spin 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "libc"
@@ -460,6 +589,26 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "libnghttp2-sys"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.47 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "libz-sys"
+version = "1.0.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.47 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "vcpkg 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "linked-hash-map"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -474,14 +623,6 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "lock_api"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "scopeguard 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "log"
 version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -490,8 +631,8 @@
 ]
 
 [[package]]
-name = "maybe-uninit"
-version = "2.0.0"
+name = "matches"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -508,10 +649,25 @@
 ]
 
 [[package]]
-name = "mio"
-version = "0.6.19"
+name = "mime"
+version = "0.3.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "mime_guess"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "mime 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicase 2.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "mio"
+version = "0.6.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -531,7 +687,7 @@
 dependencies = [
  "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.21 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -582,7 +738,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -590,12 +746,12 @@
 version = "0.1.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-traits"
-version = "0.2.8"
+version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -603,7 +759,7 @@
 
 [[package]]
 name = "num_cpus"
-version = "1.11.0"
+version = "1.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "hermit-abi 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -611,47 +767,36 @@
 ]
 
 [[package]]
-name = "parking_lot"
-version = "0.9.0"
+name = "once_cell"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "openssl-probe"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "openssl-sys"
+version = "0.9.53"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lock_api 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot_core 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.47 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "vcpkg 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "parking_lot_core"
-version = "0.6.2"
+name = "percent-encoding"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
-name = "pin-project"
-version = "0.4.0-alpha.7"
+name = "pin-project-lite"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "pin-project-internal 0.4.0-alpha.7 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "pin-project-internal"
-version = "0.4.0-alpha.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "pin-utils"
@@ -659,6 +804,11 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "pkg-config"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "ppv-lite86"
 version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -674,6 +824,21 @@
 ]
 
 [[package]]
+name = "proc-macro-hack"
+version = "0.5.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "proc-macro-nested"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "proc-macro2"
 version = "0.4.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -835,9 +1000,9 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "chrono 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "config 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-preview 0.3.0-alpha.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-preview 0.3.0-alpha.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "pin-utils 0.1.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -875,6 +1040,15 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "schannel"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "scopeguard"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -899,10 +1073,10 @@
 
 [[package]]
 name = "serde"
-version = "1.0.102"
+version = "1.0.103"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde_derive 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -919,7 +1093,7 @@
 
 [[package]]
 name = "serde_derive"
-version = "1.0.102"
+version = "1.0.103"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -929,12 +1103,12 @@
 
 [[package]]
 name = "serde_json"
-version = "1.0.41"
+version = "1.0.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "ryu 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -946,48 +1120,69 @@
 ]
 
 [[package]]
+name = "serde_urlencoded"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "dtoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "slab"
 version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "smallvec"
-version = "0.6.13"
+name = "sluice"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "maybe-uninit 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-channel-preview 0.3.0-alpha.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-core-preview 0.3.0-alpha.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-io-preview 0.3.0-alpha.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "spin"
-version = "0.5.2"
+name = "smallvec"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "string"
-version = "0.2.1"
+name = "socket2"
+version = "0.3.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
+name = "sourcefile"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "strsim"
 version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "structopt"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "structopt-derive 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "structopt-derive 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "structopt-derive"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -998,6 +1193,27 @@
 ]
 
 [[package]]
+name = "surf"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures-preview 0.3.0-alpha.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "http 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "isahc 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "js-sys 0.3.32 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime_guess 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_urlencoded 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasm-bindgen 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasm-bindgen-futures 0.3.27 (registry+https://github.com/rust-lang/crates.io-index)",
+ "web-sys 0.3.32 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "syn"
 version = "0.15.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1069,121 +1285,13 @@
 ]
 
 [[package]]
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-version = "0.2.0-alpha.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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- "futures-sink-preview 0.3.0-alpha.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-util-preview 0.3.0-alpha.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-executor 0.2.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.2.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-macros 0.2.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-net 0.2.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-sync 0.2.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-timer 0.3.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tracing-core 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
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--- a/rust/Cargo.toml	Sat Nov 09 11:35:59 2019 +0800
+++ b/rust/Cargo.toml	Thu Nov 28 23:57:00 2019 +0800
@@ -22,9 +22,14 @@
 anyhow = "1.0"
 
 # alpha for async
-hyper = "=0.13.0-alpha.1"
-futures-preview = "=0.3.0-alpha.18"
-futures-util-preview = "=0.3.0-alpha.18"
+futures = "0.3"
+#futures = "=0.3.0-alpha.18"
+#futures-util-preview = "=0.3.0-alpha.18"
+
+async-std = "0.99"
+# XXX use hyper-client to workaround https://github.com/http-rs/surf/issues/72
+# surf = { version = "1.0", features = ["hyper-client"] }
+surf = "1.0"
 
 [target.'cfg(target_os = "linux")'.dependencies]
 sysfs_gpio = "0.5"
--- a/rust/src/config.rs	Sat Nov 09 11:35:59 2019 +0800
+++ b/rust/src/config.rs	Thu Nov 28 23:57:00 2019 +0800
@@ -1,6 +1,5 @@
 use serde::{Serialize,Deserialize};
-
-use super::types::*;
+use anyhow::{Context, anyhow, Result, Error};
 
 #[derive(Deserialize,Serialize,Debug,Clone)]
 pub struct Config {
@@ -33,16 +32,18 @@
         include_str!("defconfig.toml")
     }
 
-    pub fn load(conf_file: &str) -> Result<Self, TemplogError> {
+    pub fn load(conf_file: &str) -> Result<Self> {
         let mut c = config::Config::default();
         c.merge(config::File::from_str(Self::default_toml(), config::FileFormat::Toml)).expect("Bad default config");
         c.merge(config::File::with_name(conf_file)).or_else(|e| {
             Err(match e {
-                config::ConfigError::NotFound(_) => TemplogError::new(&format!("Missing config {}", conf_file)),
-                _ => TemplogError::new(&format!("Problem parsing {}: {}", conf_file, e)),
+                config::ConfigError::NotFound(_) => anyhow!("Missing config {}", conf_file),
+                // XXX this is ugly, why won't e.with_context() work?
+                _ => Error::new(e).context(format!("Problem parsing {}", conf_file)),
             })
         })?;
-        c.merge(config::Environment::with_prefix("TEMPLOG")).unwrap();
-        c.try_into().or_else(|e| Err(TemplogError::new(&format!("Problem loading config {}: {}", conf_file, e))))
+        c.merge(config::Environment::with_prefix("TEMPLOG"))
+            .context("Failed loading from TEMPLOG_ environment variables")?;
+        Ok(c.try_into().with_context(|| format!("Problem loading config {}", conf_file))?)
     }
 }
--- a/rust/src/main.rs	Sat Nov 09 11:35:59 2019 +0800
+++ b/rust/src/main.rs	Thu Nov 28 23:57:00 2019 +0800
@@ -4,6 +4,7 @@
 
 #[macro_use] extern crate lazy_static;
 
+use anyhow::{Result};
 
 mod config;
 mod sensor;
@@ -17,9 +18,7 @@
 
 use structopt::StructOpt;
 
-use types::TemplogError;
-
-fn run(conf_file: &str, nowait: bool, testmode: bool) -> Result<(), TemplogError> {
+fn run(conf_file: &str, nowait: bool, testmode: bool) -> Result<()> {
 
     let cf = config::Config::load(conf_file)?;
 
--- a/rust/src/params.rs	Sat Nov 09 11:35:59 2019 +0800
+++ b/rust/src/params.rs	Thu Nov 28 23:57:00 2019 +0800
@@ -1,9 +1,9 @@
+use anyhow::{Result,bail};
+
 use std::time::Duration;
 
 use std::str;
 
-
-
 use std::cell::{RefCell};
 use std::fs::File;
 use std::io::Read;
@@ -13,12 +13,9 @@
 use rand::rngs::{OsRng};
 use rand::{RngCore};
 
-
-use hyper;
+use async_std::task;
 
-// for try_concat()
-use futures::stream::TryStreamExt;
-use futures::executor::block_on;
+use surf;
 
 use riker::actors::*;
 
@@ -51,7 +48,7 @@
             }
     }
 
-    fn try_load(filename: &str) -> Result<Params, TemplogError> {
+    fn try_load(filename: &str) -> Result<Params> {
         let mut s = String::new();
         File::open(filename)?.read_to_string(&mut s)?;
         Ok(serde_json::from_str(&s)?)
@@ -97,21 +94,23 @@
         }
     }
 
-    async fn wait_updates(uri: &str, etag: &str) -> Result<(hyper::Chunk, hyper::StatusCode), TemplogError> {
+    async fn wait_updates(uri: &str, etag: &str) -> Result<(Vec<u8>, u16)> {
         debug!("wait_updates {}", uri);
-        let req = hyper::Request::get(uri)
-            .header(hyper::header::ETAG, etag)//*self.last_etag.borrow())
-            .body(hyper::Body::from("")).unwrap();
+        // XXX Workaround for https://github.com/dtolnay/anyhow/issues/35
+        let mut resp = match surf::get(uri)
+            .set_header("etag", etag).await {
+                Ok(r) => r,
+                Err(e) => bail!(e),
+            };
 
         // TODO timeout?
-        let resp = hyper::Client::new().request(req).await?;
         let status = resp.status();
-        let chunk = resp.into_body().try_concat().await?;
+        let bytes = resp.body_bytes().await?;
 
-        Ok((chunk, status))
+        Ok((bytes, status.into()))
     }
 
-    fn handle_response(&self, buf : hyper::Chunk, status: hyper::StatusCode) -> Result<Params, TemplogError> {
+    fn handle_response(&self, contents : &Vec<u8>, status: u16) -> Result<Params> {
 
         #[derive(Deserialize, Debug)]
         struct Response {
@@ -122,9 +121,10 @@
         }
 
         match status {
-            hyper::StatusCode::OK => {
+            200 => {
+                // 200 OK
                 // new params
-                let r: Response = serde_json::from_slice(&buf)?;
+                let r: Response = serde_json::from_slice(contents)?;
                 let mut le = self.last_etag.borrow_mut();
                 *le = r.etag;
 
@@ -135,16 +135,17 @@
                         return Ok(r.params);
                     }
                 }
-                Err(TemplogError::new(&format!("Bad epoch from server '{}' expected '{}'", *le, self.epoch)))
+                bail!("Bad epoch from server '{}' expected '{}'", *le, self.epoch);
             }
-            hyper::StatusCode::NOT_MODIFIED => {
+            304 => {
+                // 304 Not Modified
                 // XXX this isn't really an error. Should handle_response() return 
                 // Result<Option<Params>, TemplogError> instead?
-                Err(TemplogError::new("304 unmodified (long polling timeout at the server)"))
+                bail!("304 unmodified (long polling timeout at the server)");
             },
             _ => {
-                let text = String::from_utf8_lossy(buf.as_ref());
-                Err(TemplogError::new(&format!("Wrong server response code {}: {}", status.as_u16(), text)))
+                let text = String::from_utf8_lossy(contents);
+                bail!("Wrong server response code {}: {}", status, text);
             },
         }
     }
@@ -160,14 +161,14 @@
         };
     }
 
-    fn do_poll(&mut self, ctx: &Context<<Self as Actor>::Msg>) -> Result<(), TemplogError> {
+    fn do_poll(&mut self, ctx: &Context<<Self as Actor>::Msg>) -> Result<()> {
         let url = self.config.settings_url.clone();
         let etag = self.last_etag.borrow().clone();
         let h = ctx.run(async move { 
             Self::wait_updates(&url, &etag).await 
         }).expect("spawn failed"); // XXX error handling
-        let (chunk, stat) = block_on(h)?;
-        let new_params = self.handle_response(chunk, stat)?;
+        let (contents, stat) = task::block_on(h)?;
+        let new_params = self.handle_response(&contents, stat)?;
         self.notify.tell(Publish{msg: new_params, topic: "params".into()}, None);
         Ok(())
     }
--- a/rust/src/types.rs	Sat Nov 09 11:35:59 2019 +0800
+++ b/rust/src/types.rs	Thu Nov 28 23:57:00 2019 +0800
@@ -8,7 +8,6 @@
 
 use std;
 
-use hyper;
 use serde_json;
 
 #[derive(Debug,Clone)]
@@ -38,7 +37,6 @@
     Io(io::Error),
     ParseFloat(std::num::ParseFloatError),
     SerdeJson(serde_json::Error),
-    Hyper(hyper::Error),
 }
 
 #[derive(Debug)]
@@ -59,7 +57,6 @@
             TemplogErrorKind::Io(ref e) => Some(e),
             TemplogErrorKind::ParseFloat(ref e) => Some(e),
             TemplogErrorKind::SerdeJson(ref e) => Some(e),
-            TemplogErrorKind::Hyper(ref e) => Some(e),
         }
     }
 
@@ -76,7 +73,6 @@
             TemplogErrorKind::Io(ref e) => write!(f, ": {}", e),
             TemplogErrorKind::SerdeJson(ref e) => write!(f, ": {}", e),
             TemplogErrorKind::ParseFloat(ref e) => write!(f, ": {}", e),
-            TemplogErrorKind::Hyper(ref e) => write!(f, ": {}", e),
         }?;
         Ok(())
     }
@@ -95,10 +91,6 @@
         TemplogError::new_kind(msg, TemplogErrorKind::ParseFloat(e))
     }
 
-    pub fn new_hyper(msg: &str, e: hyper::Error) -> Self {
-        TemplogError::new_kind(msg, TemplogErrorKind::Hyper(e))
-    }
-
     pub fn new_serde_json(msg: &str, e: serde_json::Error) -> Self {
         TemplogError::new_kind(msg, TemplogErrorKind::SerdeJson(e))
     }
@@ -127,7 +119,6 @@
             TemplogErrorKind::Io(_) => "Templog IO error",
             TemplogErrorKind::SerdeJson(_) => "Templog Json decode error",
             TemplogErrorKind::ParseFloat(_) => "Templog parse error",
-            TemplogErrorKind::Hyper(_) => "Templog http error",
         }
     }
 }
@@ -144,12 +135,6 @@
     }
 }
 
-impl From<hyper::Error> for TemplogError {
-    fn from(e: hyper::Error) -> Self {
-        TemplogError::new_hyper("", e)
-    }
-}
-
 impl From<serde_json::Error> for TemplogError {
     fn from(e: serde_json::Error) -> Self {
         TemplogError::new_serde_json("", e)