Replace failure with anyhow in complete codebase

This patch was scripted with

    sed -i 's/use failure::Error/use anyhow::Error/' $(rg "use failure::Error" -l)
    sed -i 's/use failure::Fallible as /use anyhow::/' $(rg "use failure::Fallible" -l)
    sed -i 's/failure/anyhow/' $(rg "failure *=" -l)
    sed -i 's/format_err!/anyhow!/' $(rg "format_err!" -l)
    sed -i 's/use failure::ResultExt/use anyhow::Context/' $(rg "use failure::ResultExt" -l)
    sed -i 's/err_msg/anyhow!/' $(rg "use failure::err_msg" -l)
    sed -i 's/^anyhow\ *=.*$/anyhow = "1"/' $(rg "anyhow * =" -l)
    sed -i 's/^anyhow_derive.*//' $(rg "anyhow_derive" -l)
    sed -i 's/extern crate failure/extern crate anyhow/' $(rg "extern crate failure" -l)
    sed -i 's/.*extern crate anyhow_derive.*//' $(rg "anyhow_derive" -l)

Some manual changes were added as well, so this patch was not completely
scripted, but mostly.

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

109 files changed, 562 insertions, 565 deletions

diff --git a/bin/core/imag-annotate/Cargo.toml b/bin/core/imag-annotate/Cargo.toml
index 5c5b89da..34e0ef4f 100644
--- a/bin/core/imag-annotate/Cargo.toml
+++ b/bin/core/imag-annotate/Cargo.toml
@@ -24,7 +24,7 @@ log = "0.4.6"
 url = "2"
 toml = "0.5.1"
 toml-query = "0.9.2"
-failure = "0.1.5"
+anyhow = "1"
 resiter = "0.4.0"
 
 libimagstore           = { version = "0.10.0", path = "../../../lib/core/libimagstore" }
diff --git a/bin/core/imag-annotate/src/lib.rs b/bin/core/imag-annotate/src/lib.rs
index 42cbea67..df0a9374 100644
--- a/bin/core/imag-annotate/src/lib.rs
+++ b/bin/core/imag-annotate/src/lib.rs
@@ -38,7 +38,7 @@ extern crate clap;
 #[macro_use]
 extern crate log;
 #[macro_use]
-extern crate failure;
+extern crate anyhow;
 extern crate toml_query;
 extern crate resiter;
 
@@ -52,10 +52,10 @@ extern crate libimagentrylink;
 
 use std::io::Write;
 
-use failure::Error;
-use failure::Fallible as Result;
-use failure::ResultExt;
-use failure::err_msg;
+use anyhow::Error;
+use anyhow::Result;
+use anyhow::Context;
+
 use resiter::IterInnerOkOrElse;
 use resiter::AndThen;
 use resiter::Map;
@@ -65,7 +65,7 @@ use clap::App;
 use libimagentryannotation::annotateable::*;
 use libimagentryannotation::annotation_fetcher::*;
 use libimagentryedit::edit::*;
-use libimagerror::errors::ErrorMsg as EM;
+use libimagerror::errors::Error as EM;
 use libimagrt::runtime::Runtime;
 use libimagrt::application::ImagApplication;
 use libimagstore::store::FileLockEntry;
@@ -78,7 +78,7 @@ mod ui;
 pub enum ImagAnnotate {}
 impl ImagApplication for ImagAnnotate {
     fn run(rt: Runtime) -> Result<()> {
-        match rt.cli().subcommand_name().ok_or_else(|| err_msg("No command called"))? {
+        match rt.cli().subcommand_name().ok_or_else(|| anyhow!("No command called"))? {
             "add"    => add(&rt),
             "remove" => remove(&rt),
             "list"   => list(&rt),
@@ -87,7 +87,7 @@ impl ImagApplication for ImagAnnotate {
                 if rt.handle_unknown_subcommand("imag-annotation", other, rt.cli())?.success() {
                     Ok(())
                 } else {
-                    Err(err_msg("Failed to handle unknown subcommand"))
+                    Err(anyhow!("Failed to handle unknown subcommand"))
                 }
             },
         }
@@ -115,7 +115,7 @@ fn add(rt: &Runtime) -> Result<()> {
     let mut ids = rt
         .ids::<crate::ui::PathProvider>()
         .context("No StoreId supplied")?
-        .ok_or_else(|| err_msg("No ids supplied"))?
+        .ok_or_else(|| anyhow!("No ids supplied"))?
         .into_iter();
 
     if let Some(first) = ids.next() {
@@ -128,7 +128,7 @@ fn add(rt: &Runtime) -> Result<()> {
 
         rt.report_touched(&first)?; // report first one first
         ids.map(Ok).into_get_iter(rt.store())
-            .map_inner_ok_or_else(|| err_msg("Did not find one entry"))
+            .map_inner_ok_or_else(|| anyhow!("Did not find one entry"))
             .and_then_ok(|mut entry| entry.add_link(&mut annotation).map(|_| entry))
             .map_report_touched(&rt)
             .map_ok(|_| ())
@@ -141,7 +141,7 @@ fn add(rt: &Runtime) -> Result<()> {
             {
                 writeln!(rt.stdout(), "Name of the annotation: {}", annotation_id)?;
             } else {
-                Err(format_err!("Unnamed annotation: {:?}", annotation.get_location()))
+                Err(anyhow!("Unnamed annotation: {:?}", annotation.get_location()))
                     .context("This is most likely a BUG, please report!")?;
             }
         }
@@ -161,7 +161,7 @@ fn remove(rt: &Runtime) -> Result<()> {
 
     rt.ids::<crate::ui::PathProvider>()
         .context("No ids supplied")?
-        .ok_or_else(|| err_msg("No ids supplied"))?
+        .ok_or_else(|| anyhow!("No ids supplied"))?
         .into_iter()
         .map(|id| {
             let mut entry = rt.store()
@@ -195,7 +195,7 @@ fn list(rt: &Runtime) -> Result<()> {
     let ids = rt
         .ids::<crate::ui::PathProvider>()
         .context("No ids supplied")?
-        .ok_or_else(|| err_msg("No ids supplied"))?;
+        .ok_or_else(|| anyhow!("No ids supplied"))?;
 
     if ids.is_empty() {
         ids.into_iter()
@@ -206,7 +206,7 @@ fn list(rt: &Runtime) -> Result<()> {
                     .ok_or_else(|| EM::EntryNotFound(lds))?
                     .annotations()?
                     .into_get_iter(rt.store())
-                    .map(|el| el.and_then(|o| o.ok_or_else(|| format_err!("Cannot find entry"))))
+                    .map(|el| el.and_then(|o| o.ok_or_else(|| anyhow!("Cannot find entry"))))
                     .enumerate()
                     .map(|(i, entry)| entry.and_then(|e| list_annotation(&rt, i, &e, with_text).map(|_| e)))
                     .map_report_touched(&rt)
@@ -220,7 +220,7 @@ fn list(rt: &Runtime) -> Result<()> {
         rt.store()
             .all_annotations()?
             .into_get_iter()
-            .map(|el| el.and_then(|opt| opt.ok_or_else(|| format_err!("Cannot find entry"))))
+            .map(|el| el.and_then(|opt| opt.ok_or_else(|| anyhow!("Cannot find entry"))))
             .enumerate()
             .map(|(i, entry)| entry.and_then(|e| list_annotation(&rt, i, &e, with_text).map(|_| e)))
             .map_report_touched(&rt)
diff --git a/bin/core/imag-annotate/src/ui.rs b/bin/core/imag-annotate/src/ui.rs
index e47a1505..a7bd3364 100644
--- a/bin/core/imag-annotate/src/ui.rs
+++ b/bin/core/imag-annotate/src/ui.rs
@@ -25,7 +25,7 @@ use libimagstore::storeid::StoreId;
 use libimagstore::storeid::IntoStoreId;
 use libimagrt::runtime::IdPathProvider;
 
-use failure::Fallible as Result;
+use anyhow::Result;
 
 pub fn build_ui<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
     app
@@ -114,7 +114,7 @@ impl IdPathProvider for PathProvider {
             ("remove", Some(subm)) => get_id_paths(subm),
             ("list", Some(subm)) => get_id_paths(subm),
             (other, _) => {
-                Err(format_err!("Not a known command: {}", other))
+                Err(anyhow!("Not a known command: {}", other))
             }
         }
     }
diff --git a/bin/core/imag-category/Cargo.toml b/bin/core/imag-category/Cargo.toml
index 5fb0c0a0..6f75f487 100644
--- a/bin/core/imag-category/Cargo.toml
+++ b/bin/core/imag-category/Cargo.toml
@@ -23,7 +23,7 @@ maintenance                       = { status     = "actively-developed" }
 log = "0.4.6"
 toml = "0.5.1"
 toml-query = "0.9.2"
-failure = "0.1.5"
+anyhow = "1"
 resiter = "0.4.0"
 
 libimagstore           = { version = "0.10.0", path = "../../../lib/core/libimagstore" }
diff --git a/bin/core/imag-category/src/lib.rs b/bin/core/imag-category/src/lib.rs
index c1c2ed73..d6eb18ef 100644
--- a/bin/core/imag-category/src/lib.rs
+++ b/bin/core/imag-category/src/lib.rs
@@ -38,7 +38,7 @@ extern crate clap;
 #[macro_use]
 extern crate log;
 #[macro_use]
-extern crate failure;
+extern crate anyhow;
 extern crate resiter;
 
 extern crate libimagentrycategory;
@@ -47,7 +47,7 @@ extern crate libimagrt;
 extern crate libimagstore;
 extern crate libimaginteraction;
 
-use failure::Fallible as Result;
+use anyhow::Result;
 use resiter::Map;
 use clap::App;
 
@@ -59,8 +59,8 @@ mod ui;
 
 use std::io::Write;
 
-use failure::err_msg;
-use failure::Error;
+
+use anyhow::Error;
 use resiter::AndThen;