flake-info: fix compilation warnings (#503)

Removes some dead code, including the unimplemented `--elastic-user`,
`--elastic-pw` and `--gc` flags. Builds and tests with no warnings.

flake-info/src/bin/flake-info.rs

@@ -1,19 +1,15 @@
 use anyhow::{Context, Result};
-use commands::run_gc;
 use flake_info::commands::NixCheckError;
-use flake_info::data::import::{Kind, NixOption};
-use flake_info::data::{self, Export, Nixpkgs, Source};
-use flake_info::elastic::{ElasticsearchError, ExistsStrategy};
-use flake_info::{commands, elastic};
+use flake_info::data::import::Kind;
+use flake_info::data::{self, Export, Source};
+use flake_info::elastic::{self, ElasticsearchError, ExistsStrategy};
 use lazy_static::lazy_static;
-use log::{debug, error, info, warn};
-use semver::VersionReq;
+use log::{error, info, warn};
 use serde::Deserialize;
 use sha2::Digest;
-use std::path::{Path, PathBuf};
-use std::ptr::hash;
+use std::io;
+use std::path::PathBuf;
 use std::str::FromStr;
-use std::{fs, io};
 use structopt::{clap::ArgGroup, StructOpt};
 use thiserror::Error;
 use tokio::fs::File;
@@ -58,9 +54,6 @@ enum Command {
             help = "Whether to use a temporary store or not. Located at /tmp/flake-info-store"
         )]
         temp_store: bool,
-
-        #[structopt(long, help = "Whether to gc the store after info or not")]
-        gc: bool,
     },
     #[structopt(about = "Import official nixpkgs channel")]
     Nixpkgs {
@@ -95,9 +88,6 @@ enum Command {
         )]
         temp_store: bool,
 
-        #[structopt(long, help = "Whether to gc the store after info or not")]
-        gc: bool,
-
         #[structopt(long, help = "Whether write an error report about failed packages")]
         report: bool,
     },
@@ -115,22 +105,21 @@ struct ElasticOpts {
     )]
     enable: bool,
 
-    #[structopt(
-        long,
-        short = "u",
-        env = "FI_ES_USER",
-        help = "Elasticsearch username (unimplemented)"
-    )]
-    elastic_user: Option<String>,
-
-    #[structopt(
-        long,
-        short = "p",
-        env = "FI_ES_PASSWORD",
-        help = "Elasticsearch password (unimplemented)"
-    )]
-    elastic_pw: Option<String>,
+    // #[structopt(
+    //     long,
+    //     short = "u",
+    //     env = "FI_ES_USER",
+    //     help = "Elasticsearch username (unimplemented)"
+    // )]
+    // elastic_user: Option<String>,
 
+    // #[structopt(
+    //     long,
+    //     short = "p",
+    //     env = "FI_ES_PASSWORD",
+    //     help = "Elasticsearch password (unimplemented)"
+    // )]
+    // elastic_pw: Option<String>,
     #[structopt(
         long,
         env = "FI_ES_URL",
@@ -222,11 +211,7 @@ async fn run_command(
     flake_info::commands::check_nix_version(env!("MIN_NIX_VERSION"))?;
 
     match command {
-        Command::Flake {
-            flake,
-            temp_store,
-            gc,
-        } => {
+        Command::Flake { flake, temp_store } => {
             let source = Source::Git { url: flake };
             let (info, exports) = flake_info::process_flake(&source, &kind, temp_store, extra)
                 .map_err(FlakeInfoError::Flake)?;
@@ -271,7 +256,6 @@ async fn run_command(
         Command::Group {
             targets,
             temp_store,
-            gc,
             name,
             report,
         } => {

flake-info/src/commands/mod.rs

@@ -1,10 +1,8 @@
 mod nix_check_version;
 mod nix_flake_attrs;
 mod nix_flake_info;
-mod nix_gc;
 mod nixpkgs_info;
 pub use nix_check_version::{check_nix_version, NixCheckError};
 pub use nix_flake_attrs::get_derivation_info;
 pub use nix_flake_info::get_flake_info;
-pub use nix_gc::run_gc;
 pub use nixpkgs_info::{get_nixpkgs_info, get_nixpkgs_options};

flake-info/src/commands/nix_flake_attrs.rs

@@ -1,7 +1,6 @@
 use crate::data::import::{FlakeEntry, Kind};
 use anyhow::{Context, Result};
 use command_run::{Command, LogTo};
-use log::debug;
 use serde_json::Deserializer;
 use std::fmt::Display;
 use std::fs::File;

flake-info/src/commands/nix_gc.rs

@@ -1,54 +0,0 @@
-use anyhow::{Context, Result};
-use log::warn;
-use std::{
-    path::{self, PathBuf},
-    process::Command,
-};
-use thiserror::Error;
-
-#[derive(Error, Debug)]
-pub enum GCError {
-    #[error("Unexpected exit status: {0}")]
-    ExitStatusError(String),
-}
-
-pub fn run_gc() -> Result<()> {
-    let temp_store_path = PathBuf::from("/tmp/flake-info-store");
-    if !temp_store_path.exists() {
-        warn!("Temporary store path does not exist, was a temporary store used?");
-        return Ok(());
-    }
-
-    let mut command = Command::new("nix-store");
-    command.args(&[
-        "--gc",
-        "--store",
-        temp_store_path.canonicalize()?.to_str().unwrap(),
-    ]);
-
-    dbg!(&command);
-
-    let mut child = command
-        .spawn()
-        .with_context(|| "failed to start `nix-store gc` subprocess")?;
-
-    let result = child.wait()?;
-
-    if !result.success() {
-        return Err(GCError::ExitStatusError(format!("Code: {}", result.code().unwrap())).into());
-    }
-
-    std::fs::remove_dir_all(temp_store_path).with_context(|| "failed to clean up temp dir")?;
-
-    Ok(())
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn test_gc() {
-        run_gc().unwrap();
-    }
-}

flake-info/src/commands/nixpkgs_info.rs

@@ -4,7 +4,7 @@ use std::io::Write;
 use std::{collections::HashMap, fmt::Display, fs::File};
 
 use command_run::{Command, LogTo};
-use log::{debug, error};
+use log::error;
 
 use crate::data::import::{NixOption, NixpkgsEntry, Package};
 

flake-info/src/data/export.rs

@@ -12,13 +12,10 @@ use super::{
 };
 use crate::data::import::NixOption;
 use anyhow::Context;
-use log::error;
 use serde::{Deserialize, Serialize};
-use serde_json::Value;
 
 use super::{
     import,
-    prettyprint::print_value,
     system::System,
     utility::{AttributeQuery, Flatten, OneOrMany, Reverse},
 };
@@ -66,6 +63,7 @@ impl From<import::License> for License {
 #[serde(tag = "type")]
 pub enum Derivation {
     #[serde(rename = "package")]
+    #[allow(non_snake_case)]
     Package {
         package_attr_name: String,
         package_attr_name_reverse: Reverse<String>,

flake-info/src/data/import.rs

@@ -1,19 +1,16 @@
-use std::collections::{BTreeMap, HashMap};
-use std::convert::TryInto;
-use std::fmt::{self, write, Display};
+use std::collections::HashMap;
+use std::fmt;
 use std::marker::PhantomData;
 use std::{path::PathBuf, str::FromStr};
 
 use clap::arg_enum;
 use log::warn;
-use pandoc::PandocError;
 use serde::de::{self, MapAccess, Visitor};
 use serde::{Deserialize, Deserializer, Serialize, Serializer};
 use serde_json::Value;
-use thiserror::Error;
 
 use super::pandoc::PandocExt;
-use super::prettyprint::{self, print_value};
+use super::prettyprint::print_value;
 use super::system::System;
 use super::utility::{Flatten, OneOrMany};
 
@@ -226,6 +223,7 @@ pub enum License {
     Simple {
         license: String,
     },
+    #[allow(non_snake_case)]
     Full {
         fullName: String,
         // shortName: String,
@@ -313,8 +311,6 @@ where
 mod tests {
     use std::collections::HashMap;
 
-    use serde_json::Value;
-
     use super::*;
 
     #[test]

flake-info/src/data/pandoc.rs

@@ -3,7 +3,6 @@ use std::io::Write;
 use std::path::PathBuf;
 
 use lazy_static::lazy_static;
-use log::debug;
 use pandoc::{
     InputFormat, InputKind, OutputFormat, OutputKind, PandocError, PandocOption, PandocOutput,
 };

flake-info/src/data/source.rs

@@ -1,8 +1,8 @@
-use anyhow::{Context, Result};
+use anyhow::Result;
 use serde::{Deserialize, Serialize};
 use std::{
     ffi::OsStr,
-    fs::{self, File},
+    fs::File,
     io::{self, Read},
     path::Path,
 };

flake-info/src/data/system.rs

@@ -31,8 +31,3 @@ pub struct InstancePlatform {
     system: System,
     version: String,
 }
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-}

flake-info/src/elastic.rs

@@ -1,15 +1,8 @@
-use std::{borrow::Borrow, collections::HashMap};
+use std::collections::HashMap;
 
 use clap::arg_enum;
 pub use elasticsearch::http::transport::Transport;
-use elasticsearch::{
-    http::response::{self, Response},
-    indices::{
-        IndicesCreateParts, IndicesDeleteAliasParts, IndicesDeleteParts, IndicesExistsParts,
-        IndicesGetAliasParts, IndicesPutAliasParts, IndicesUpdateAliasesParts,
-    },
-    BulkOperation, Elasticsearch as Client,
-};
+use elasticsearch::{http::response, indices::*, BulkOperation, Elasticsearch as Client};
 use lazy_static::lazy_static;
 use log::{info, warn};
 use serde_json::{json, Value};
@@ -380,7 +373,7 @@ impl Elasticsearch {
 
     pub async fn write_alias(
         &self,
-        config: &Config<'_>,
+        _config: &Config<'_>,
         index: &str,
         alias: &str,
     ) -> Result<(), ElasticsearchError> {
@@ -499,7 +492,7 @@ mod tests {
         let exports = sources
             .iter()
             .flat_map(|s| process_flake(s, &Kind::All, false, &[]))
-            .map(|(info, exports)| exports)
+            .map(|(_info, exports)| exports)
             .flatten()
             .collect::<Vec<Export>>();
         println!("{}", serde_json::to_string(&exports[1]).unwrap());

flake-info/src/lib.rs

@@ -1,7 +1,5 @@
 #![recursion_limit = "256"]
 
-use std::path::PathBuf;
-
 use anyhow::Result;
 use data::{import::Kind, Export, Flake, Source};