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Transform imag-calendar to not call exit() but propagate errors to main()

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Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
This commit is contained in:
Matthias Beyer 2019-10-27 11:29:47 +01:00
parent ee739e17fc
commit fe1885c8a9
2 changed files with 112 additions and 122 deletions
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1
bin/domain/imag-calendar/Cargo.toml
View file

@ -28,6 +28,7 @@ vobject = "0.7"
handlebars = "2"
chrono = "0.4"
kairos = "0.3"
resiter = "0.4.0"
libimagrt = { version = "0.10.0", path = "../../../lib/core/libimagrt" }
libimagstore = { version = "0.10.0", path = "../../../lib/core/libimagstore" }

231
bin/domain/imag-calendar/src/lib.rs
View file

@ -42,6 +42,7 @@ extern crate walkdir;
extern crate handlebars;
extern crate chrono;
extern crate kairos;
extern crate resiter;
extern crate libimagrt;
extern crate libimagcalendar;
@ -50,7 +51,6 @@ extern crate libimagstore;
extern crate libimagutil;
use std::path::PathBuf;
use std::result::Result as RResult;
use std::io::Write;
use failure::Error;
@ -62,14 +62,14 @@ use walkdir::DirEntry;
use walkdir::WalkDir;
use vobject::icalendar::Event;
use clap::App;
use resiter::AndThen;
use resiter::Filter;
use resiter::Map;
use libimagcalendar::store::EventStore;
use libimagerror::io::ToExitCode;
use libimagerror::exit::ExitUnwrap;
use libimagerror::iter::TraceIterator;
use libimagerror::trace::MapErrTrace;
use libimagrt::runtime::Runtime;
use libimagrt::application::ImagApplication;
use crate::resiter::IterInnerOkOrElse;
mod filters;
mod ui;
@ -82,24 +82,20 @@ mod util;
pub enum ImagCalendar {}
impl ImagApplication for ImagCalendar {
fn run(rt: Runtime) -> Result<()> {
if let Some(name) = rt.cli().subcommand_name() {
debug!("Call {}", name);
match name {
"import" => import(&rt),
"list" => list(&rt),
"show" => show(&rt),
other => {
warn!("Right now, only the 'import' command is available");
debug!("Unknown command");
let _ = rt.handle_unknown_subcommand("imag-calendar", other, rt.cli())
.map_err_trace_exit_unwrap()
.code()
.map(::std::process::exit);
},
}
match rt.cli().subcommand_name().ok_or_else(|| err_msg("No subcommand called"))? {
"import" => import(&rt),
"list" => list(&rt),
"show" => show(&rt),
other => {
warn!("Right now, only the 'import' command is available");
debug!("Unknown command");
if rt.handle_unknown_subcommand("imag-calendar", other, rt.cli())?.success() {
Ok(())
} else {
Err(err_msg("Failed to handle unknown subcommand"))
}
},
}
Ok(())
}
fn build_cli<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
@ -119,29 +115,25 @@ impl ImagApplication for ImagCalendar {
}
}
fn import(rt: &Runtime) {
fn import(rt: &Runtime) -> Result<()> {
let scmd = rt.cli().subcommand_matches("import").unwrap(); // safe by clap
let collection_name = rt.cli().value_of("calendar-ref-collection-name").unwrap(); // default by clap
let do_fail = scmd.is_present("import-fail");
let force_override = scmd.is_present("import-force-override");
let ref_config = rt.config()
.ok_or_else(|| format_err!("No configuration, cannot continue!"))
.map_err_trace_exit_unwrap()
.read_partial::<libimagentryref::reference::Config>()
.map_err(Error::from)
.map_err_trace_exit_unwrap()
.ok_or_else(|| format_err!("Configuration missing: {}", libimagentryref::reference::Config::LOCATION))
.map_err_trace_exit_unwrap();
.ok_or_else(|| format_err!("No configuration, cannot continue!"))?
.read_partial::<libimagentryref::reference::Config>()?
.ok_or_else(|| format_err!("Configuration missing: {}", libimagentryref::reference::Config::LOCATION))?;
// sanity check
debug!("Doing sanity check on config, to see whether the configuration required for importing is there");
if ref_config.get(collection_name).is_none() {
error!("Configuration missing: {}.{}", libimagentryref::reference::Config::LOCATION, collection_name);
::std::process::exit(1);
return Err(format_err!("Configuration missing: {}.{}", libimagentryref::reference::Config::LOCATION, collection_name))
}
debug!("Starting import...");
scmd.values_of("filesordirs")
let iter = scmd
.values_of("filesordirs")
.unwrap() // save by clap
.into_iter()
.map(PathBuf::from)
@ -166,51 +158,49 @@ fn import(rt: &Runtime) {
Box::new(std::iter::once(Ok(path)))
})
.flat_map(|it| it) // From Iter<Iter<Result<PathBuf>>> to Iter<Result<PathBuf>>
.trace_unwrap_exit() //... to Iter<PathBuf>
.map(|path| {
.and_then_ok(|path| {
trace!("Importing {}", path.display());
let v = rt.store().import_from_path(path, collection_name, &ref_config, force_override)?;
Ok(v.into_iter()
.filter_map(|result| if do_fail {
Some(result.map_err_trace_exit_unwrap())
} else {
match result {
Err(e) => { warn!("Error while importing: {}", e); None }
Ok(fle) => Some(fle),
}
}))
})
.trace_unwrap_exit()
Ok({
rt.store()
.import_from_path(path, collection_name, &ref_config, force_override)?
.into_iter()
})
}) // Iter<Result<Iter<_>>
.collect::<Result<Vec<_>>>()?
.into_iter()
.flat_map(|it| it)
.for_each(|fle| rt.report_touched(fle.get_location()).unwrap_or_exit());
.and_then_ok(|fle| rt.report_touched(fle.get_location()).map_err(Error::from));
if do_fail {
iter.collect()
} else {
for element in iter {
if let Err(e) = element {
writeln!(rt.stderr(), "Error while importing: {:?}", e)?;
}
}
Ok(())
}
}
fn list(rt: &Runtime) {
fn list(rt: &Runtime) -> Result<()> {
use util::*;
let scmd = rt.cli().subcommand_matches("list").unwrap(); // safe by clap
let list_format = get_event_print_format("calendar.list_format", rt, &scmd)
.map_err_trace_exit_unwrap();
let scmd = rt.cli().subcommand_matches("list").unwrap(); // safe by clap
let list_format = get_event_print_format("calendar.list_format", rt, &scmd)?;
let do_filter_past = !scmd.is_present("list-past");
let do_filter_before = scmd.value_of("list-before");
let do_filter_after = scmd.value_of("list-after");
let ref_config = rt.config()
.ok_or_else(|| format_err!("No configuration, cannot continue!"))
.map_err_trace_exit_unwrap()
.read_partial::<libimagentryref::reference::Config>()
.map_err(Error::from)
.map_err_trace_exit_unwrap()
.ok_or_else(|| format_err!("Configuration missing: {}", libimagentryref::reference::Config::LOCATION))
.map_err_trace_exit_unwrap();
let ref_config = rt.config()
.ok_or_else(|| format_err!("No configuration, cannot continue!"))?
.read_partial::<libimagentryref::reference::Config>()?
.ok_or_else(|| format_err!("Configuration missing: {}", libimagentryref::reference::Config::LOCATION))?;
debug!("List format: {:?}", list_format);
debug!("Ref config : {:?}", ref_config);
let today = ::chrono::Local::now().naive_local();
let event_filter = |e: &'_ Event| { // what a crazy hack to make the compiler happy
let event_filter = |e: &'_ Event| -> Result<bool> { // what a crazy hack to make the compiler happy
debug!("Filtering event: {:?}", e);
// generate a function `filter_past` which filters out the past or not
@ -220,105 +210,104 @@ fn list(rt: &Runtime) {
true
};
let do_filter_before = do_filter_before.map(|spec| kairos_parse(spec).map_err_trace_exit_unwrap());
let do_filter_before = do_filter_before.map(|spec| kairos_parse(spec));
let allow_events_before_date = |event| do_filter_before.as_ref().map(|spec| {
filters::event_is_before(event, spec)
}).unwrap_or(true);
let allow_events_before_date = |event| -> Result<bool> {
Ok(do_filter_before.transpose()?.as_ref().map(|spec| {
filters::event_is_before(event, spec)
}).unwrap_or(true))
};
let do_filter_after = do_filter_after.map(|spec| kairos_parse(spec).map_err_trace_exit_unwrap());
let do_filter_after = do_filter_after.map(|spec| kairos_parse(spec));
let allow_events_after_date = |event| do_filter_after.as_ref().map(|spec| {
filters::event_is_after(event, spec)
}).unwrap_or(true);
let allow_events_after_date = |event| -> Result<bool> {
Ok(do_filter_after.transpose()?.as_ref().map(|spec| {
filters::event_is_after(event, spec)
}).unwrap_or(true))
};
allow_all_past_events(e) && allow_events_before_date(e) && allow_events_after_date(e)
Ok(allow_all_past_events(e) && allow_events_before_date(e)? && allow_events_after_date(e)?)
};
let mut listed_events = 0;
rt.store()
.all_events()
.map_err_trace_exit_unwrap()
.trace_unwrap_exit()
.map(|sid| rt.store().get(sid))
.trace_unwrap_exit()
.map(|oe| oe.ok_or_else(|| err_msg("Missing entry while calling all_events()")))
.trace_unwrap_exit()
.map(|ev| ParsedEventFLE::parse(ev, &ref_config))
.trace_unwrap_exit()
.for_each(|parsed_entry| {
.all_events()?
.and_then_ok(|sid| rt.store().get(sid))
.map_inner_ok_or_else(|| err_msg("Missing entrty while calling all_events()"))
.and_then_ok(|ev| ParsedEventFLE::parse(ev, &ref_config))
.and_then_ok(|parsed_entry| {
parsed_entry
.get_data()
.events()
.filter_map(RResult::ok)
.filter(event_filter)
.for_each(|event| {
.map_err(|component| Error::from(format_err!("Failed to parse entry: {}", component.name)))
.and_then_ok(|event| {
event_filter(&event).map(|b| (event, b))
})
.filter_ok(|tpl| (*tpl).1)
.map_ok(|tpl| tpl.0)
.and_then_ok(|event| {
listed_events = listed_events + 1;
let data = build_data_object_for_handlebars(listed_events, &event);
let rendered = list_format
.render("format", &data)
.map_err(Error::from)
.map_err_trace_exit_unwrap();
let rendered = list_format.render("format", &data)?;
writeln!(rt.stdout(), "{}", rendered).to_exit_code().unwrap_or_exit()
});
writeln!(rt.stdout(), "{}", rendered).map_err(Error::from)
})
.collect::<Result<Vec<_>>>()?;
rt.report_touched(parsed_entry.get_entry().get_location()).unwrap_or_exit();
});
rt.report_touched(parsed_entry.get_entry().get_location()).map_err(Error::from)
})
.collect()
}
fn show(rt: &Runtime) {
fn show(rt: &Runtime) -> Result<()> {
let scmd = rt.cli().subcommand_matches("show").unwrap(); // safe by clap
let ref_config = rt.config()
.ok_or_else(|| format_err!("No configuration, cannot continue!"))
.map_err_trace_exit_unwrap()
.read_partial::<libimagentryref::reference::Config>()
.map_err(Error::from)
.map_err_trace_exit_unwrap()
.ok_or_else(|| format_err!("Configuration missing: {}", libimagentryref::reference::Config::LOCATION))
.map_err_trace_exit_unwrap();
.ok_or_else(|| format_err!("No configuration, cannot continue!"))?
.read_partial::<libimagentryref::reference::Config>()?
.ok_or_else(|| format_err!("Configuration missing: {}", libimagentryref::reference::Config::LOCATION))?;
let list_format = util::get_event_print_format("calendar.show_format", rt, &scmd)
.map_err_trace_exit_unwrap();
let list_format = util::get_event_print_format("calendar.show_format", rt, &scmd)?;
let mut shown_events = 0;
scmd.values_of("show-ids")
.unwrap() // safe by clap
.into_iter()
.filter_map(|id| {
util::find_event_by_id(rt.store(), id, &ref_config)
.map(|entry| { debug!("Found => {:?}", entry); entry })
.map_err_trace_exit_unwrap()
.map(|parsed| (parsed, id))
.map(|id| {
let e = util::find_event_by_id(rt.store(), id, &ref_config)?;
debug!("Found => {:?}", e);
Ok((e, id))
})
.for_each(|(parsed_entry, id)| {
.and_then_ok(|tpl| match tpl {
(None, id) => Err(format_err!("Missing entry: {}", id)),
(Some(e), id) => Ok((e, id)),
})
.and_then_ok(|(parsed_entry, id)| {
parsed_entry
.get_data()
.events()
.filter_map(RResult::ok)
.filter(|pent| {
.map_err(|component| Error::from(format_err!("Failed to parse entry: {}", component.name)))
.filter_ok(|pent| {
let relevant = pent.uid().map(|uid| uid.raw().starts_with(id)).unwrap_or(false);
debug!("Relevant {} => {}", parsed_entry.get_entry().get_location(), relevant);
relevant
})
.for_each(|event| {
.and_then_ok(|event| {
shown_events = shown_events + 1;
let data = util::build_data_object_for_handlebars(shown_events, &event);
let rendered = list_format
.render("format", &data)
.map_err(Error::from)
.map_err_trace_exit_unwrap();
let rendered = list_format.render("format", &data)?;
writeln!(rt.stdout(), "{}", rendered).to_exit_code().unwrap_or_exit()
});
writeln!(rt.stdout(), "{}", rendered).map_err(Error::from)
})
.collect::<Result<Vec<_>>>()?;
rt.report_touched(parsed_entry.get_entry().get_location()).unwrap_or_exit();
});
rt.report_touched(parsed_entry.get_entry().get_location()).map_err(Error::from)
})
.collect()
}
/// helper function to check whether a DirEntry points to something hidden (starting with dot)