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better errors

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This commit is contained in:
phiresky 2020-06-06 13:06:19 +02:00
parent f2d9393832
commit cb6ad328a2
3 changed files with 46 additions and 29 deletions
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3
src/bin/rga-preproc.rs
View File

@ -2,6 +2,7 @@ use rga::adapters::*;
use rga::preproc::*; use rga::preproc::*;
use ripgrep_all as rga; use ripgrep_all as rga;
use anyhow::Context;
use std::fs::File; use std::fs::File;
fn main() -> anyhow::Result<()> { fn main() -> anyhow::Result<()> {
@ -20,7 +21,7 @@ fn main() -> anyhow::Result<()> {
let cache = if args.no_cache { let cache = if args.no_cache {
None None
} else { } else {
Some(rga::preproc_cache::open()?) Some(rga::preproc_cache::open().context("could not open cache")?)
}; };
let ai = AdaptInfo { let ai = AdaptInfo {
inp: &mut i, inp: &mut i,

25
src/preproc.rs
View File

@ -106,7 +106,8 @@ pub fn rga_preproc(ai: AdaptInfo) -> Result<()> {
args.cache_compression_level.try_into().unwrap(), args.cache_compression_level.try_into().unwrap(),
)?); )?);
debug!("adapting..."); debug!("adapting...");
adapter.adapt( adapter
.adapt(
AdaptInfo { AdaptInfo {
line_prefix, line_prefix,
filepath_hint, filepath_hint,
@ -117,7 +118,14 @@ pub fn rga_preproc(ai: AdaptInfo) -> Result<()> {
config: PreprocConfig { cache: None, args }, config: PreprocConfig { cache: None, args },
}, },
&detection_reason, &detection_reason,
)?; )
.with_context(|| {
format!(
"adapting {} via {} failed",
filepath_hint.to_string_lossy(),
meta.name
)
})?;
let compressed = compbuf let compressed = compbuf
.into_inner() .into_inner()
.map_err(|_| "could not finish zstd") // can't use with_context here .map_err(|_| "could not finish zstd") // can't use with_context here
@ -138,8 +146,10 @@ pub fn rga_preproc(ai: AdaptInfo) -> Result<()> {
)?; )?;
Ok(()) Ok(())
} else { } else {
// couldn't open cache
debug!("adapting..."); debug!("adapting...");
adapter.adapt( adapter
.adapt(
AdaptInfo { AdaptInfo {
line_prefix, line_prefix,
filepath_hint, filepath_hint,
@ -150,7 +160,14 @@ pub fn rga_preproc(ai: AdaptInfo) -> Result<()> {
config: PreprocConfig { cache: None, args }, config: PreprocConfig { cache: None, args },
}, },
&detection_reason, &detection_reason,
)?; )
.with_context(|| {
format!(
"adapting {} via {} without caching failed",
filepath_hint.to_string_lossy(),
meta.name
)
})?;
Ok(()) Ok(())
} }
} }

7
src/preproc_cache.rs
View File

@ -23,9 +23,9 @@ pub trait PreprocCache {
fn open_cache_db() -> Result<std::sync::Arc<std::sync::RwLock<rkv::Rkv>>> { fn open_cache_db() -> Result<std::sync::Arc<std::sync::RwLock<rkv::Rkv>>> {
let app_cache = cachedir::CacheDirConfig::new("rga").get_cache_dir()?; let app_cache = cachedir::CacheDirConfig::new("rga").get_cache_dir()?;
let db_arc = rkv::Manager::singleton() rkv::Manager::singleton()
.write() .write()
.expect("could not write db manager") .map_err(|_| format_err!("could not write cache db manager"))?
.get_or_create(app_cache.as_path(), |p| { .get_or_create(app_cache.as_path(), |p| {
let mut builder = rkv::Rkv::environment_builder(); let mut builder = rkv::Rkv::environment_builder();
builder builder
@ -40,8 +40,7 @@ fn open_cache_db() -> Result<std::sync::Arc<std::sync::RwLock<rkv::Rkv>>> {
.set_max_readers(128); .set_max_readers(128);
rkv::Rkv::from_env(p, builder) rkv::Rkv::from_env(p, builder)
}) })
.expect("could not get/create db"); .map_err(|e| format_err!("could not get/create cache db: {}", e))
Ok(db_arc)
} }
pub struct LmdbCache { pub struct LmdbCache {