Factor usage of common error type more

dq/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "dq"
+version = "0.1.0"
+authors = ["Dominik Werder <dominik.werder@gmail.com>"]
+edition = "2021"
+
+[lib]
+path = "src/dq.rs"
+
+[dependencies]
+#serde = { version = "1.0", features = ["derive"] }
+#serde_json = "1.0"
+#tokio = { version = "1.14.77", features = ["rt-multi-thread", "io-util", "net", "time", "sync", "fs"] }
+err = { path = "../err" }
+#taskrun = { path = "../taskrun" }
+clap = "3.0.0-beta.5"

dq/src/bin/dq.rs

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+// TODO crate `err` pulls in all other dependencies in order to implement From<...> for Error.
+// Refactor that...
+// Crate `taskrun` also depends on `err`...
+
+use std::path::PathBuf;
+
+use err::Error;
+
+#[derive(Debug)]
+pub struct Error2;
+
+use clap::{crate_version, Parser};
+
+#[derive(Debug, Parser)]
+#[clap(name="DAQ tools", author="Dominik Werder <dominik.werder@psi.ch>", version=crate_version!())]
+pub struct Opts {
+    #[clap(short, long, parse(from_occurrences))]
+    pub verbose: i32,
+    #[clap(subcommand)]
+    pub subcmd: SubCmd,
+}
+
+#[derive(Debug, Parser)]
+pub enum SubCmd {
+    ConvertArchiverApplianceChannel(ConvertArchiverApplianceChannel),
+}
+
+#[derive(Debug, Parser)]
+pub struct ConvertArchiverApplianceChannel {
+    name: String,
+    #[clap(about = "Look for archiver appliance data at given path")]
+    input_dir: PathBuf,
+    #[clap(about = "Generate Databuffer format at given path")]
+    output_dir: PathBuf,
+}
+
+pub fn main() -> Result<(), Error> {
+    //taskrun::run(async { Ok(()) })
+    let opts = Opts::parse();
+    eprintln!("Opts: {:?}", opts);
+    Err(Error::with_msg_no_trace(format!("123")))
+}

dq/src/dq.rs

@@ -0,0 +1 @@
+