Add config file

6 files changed, 259 insertions, 3 deletions

diff --git a/Cargo.lock b/Cargo.lock
index e9f2f77..ae49ed7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -8,13 +8,34 @@ dependencies = [
 
 [[package]]
 name = "almanac"
-version = "0.1.0"
+version = "0.1.1"
 dependencies = [
  "chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono-tz 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "colored 1.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dirs 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "ical 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "itertools 0.7.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.81 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.81 (registry+https://github.com/rust-lang/crates.io-index)",
+ "toml 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "argon2rs"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "blake2-rfc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scoped_threadpool 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "arrayvec"
+version = "0.4.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -39,6 +60,20 @@ dependencies = [
 ]
 
 [[package]]
+name = "bitflags"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "blake2-rfc"
+version = "0.2.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "arrayvec 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "constant_time_eq 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "cc"
 version = "1.0.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -76,6 +111,21 @@ dependencies = [
 ]
 
 [[package]]
+name = "constant_time_eq"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "dirs"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_users 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "either"
 version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -89,6 +139,40 @@ dependencies = [
 ]
 
 [[package]]
+name = "failure"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "backtrace 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "failure_derive 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "failure_derive"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "fuchsia-zircon"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "fuchsia-zircon-sys"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "ical"
 version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -125,6 +209,11 @@ dependencies = [
 ]
 
 [[package]]
+name = "nodrop"
+version = "0.1.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "num-integer"
 version = "0.1.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -146,11 +235,48 @@ dependencies = [
 ]
 
 [[package]]
+name = "proc-macro2"
+version = "0.4.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "quote"
+version = "0.6.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "redox_syscall"
 version = "0.1.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "redox_users"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "argon2rs 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "failure 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "regex"
 version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -176,6 +302,47 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "scoped_threadpool"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "serde"
+version = "1.0.81"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "serde_derive"
+version = "1.0.81"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.22 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "syn"
+version = "0.15.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "synstructure"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "thread_local"
 version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -194,11 +361,24 @@ dependencies = [
 ]
 
 [[package]]
+name = "toml"
+version = "0.4.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "serde 1.0.81 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "ucd-util"
 version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "unicode-xid"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "utf8-ranges"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -229,30 +409,52 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [metadata]
 "checksum aho-corasick 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)" = "1e9a933f4e58658d7b12defcf96dc5c720f20832deebe3e0a19efd3b6aaeeb9e"
+"checksum argon2rs 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "3f67b0b6a86dae6e67ff4ca2b6201396074996379fba2b92ff649126f37cb392"
+"checksum arrayvec 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "f405cc4c21cd8b784f6c8fc2adf9bc00f59558f0049b5ec21517f875963040cc"
 "checksum backtrace 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "89a47830402e9981c5c41223151efcced65a0510c13097c769cede7efb34782a"
 "checksum backtrace-sys 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)" = "c66d56ac8dabd07f6aacdaf633f4b8262f5b3601a810a0dcddffd5c22c69daa0"
+"checksum bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "228047a76f468627ca71776ecdebd732a3423081fcf5125585bcd7c49886ce12"
+"checksum blake2-rfc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)" = "5d6d530bdd2d52966a6d03b7a964add7ae1a288d25214066fd4b600f0f796400"
 "checksum cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)" = "f159dfd43363c4d08055a07703eb7a3406b0dac4d0584d96965a3262db3c9d16"
 "checksum cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "082bb9b28e00d3c9d39cc03e64ce4cea0f1bb9b3fde493f0cbc008472d22bdf4"
 "checksum chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "45912881121cb26fad7c38c17ba7daa18764771836b34fab7d3fbd93ed633878"
 "checksum chrono-tz 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "44420a821d3075c6b4dcdba557104274a240b5b6e323dc17136507e96ca2db59"
 "checksum colored 1.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dc0a60679001b62fb628c4da80e574b9645ab4646056d7c9018885efffe45533"
+"checksum constant_time_eq 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8ff012e225ce166d4422e0e78419d901719760f62ae2b7969ca6b564d1b54a9e"
+"checksum dirs 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "88972de891f6118092b643d85a0b28e0678e0f948d7f879aa32f2d5aafe97d2a"
 "checksum either 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3be565ca5c557d7f59e7cfcf1844f9e3033650c929c6566f511e8005f205c1d0"
 "checksum error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d9435d864e017c3c6afeac1654189b06cdb491cf2ff73dbf0d73b0f292f42ff8"
+"checksum failure 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6dd377bcc1b1b7ce911967e3ec24fa19c3224394ec05b54aa7b083d498341ac7"
+"checksum failure_derive 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "64c2d913fe8ed3b6c6518eedf4538255b989945c14c2a7d5cbff62a5e2120596"
+"checksum fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2e9763c69ebaae630ba35f74888db465e49e259ba1bc0eda7d06f4a067615d82"
+"checksum fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
 "checksum ical 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a985f921bf84e6d00286f0f41363e2d39978370d8d8868c114002d863c27094f"
 "checksum itertools 0.7.11 (registry+https://github.com/rust-lang/crates.io-index)" = "0d47946d458e94a1b7bcabbf6521ea7c037062c81f534615abcad76e84d4970d"
 "checksum lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a374c89b9db55895453a74c1e38861d9deec0b01b405a82516e9d5de4820dea1"
 "checksum libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)" = "10923947f84a519a45c8fefb7dd1b3e8c08747993381adee176d7a82b4195311"
 "checksum memchr 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0a3eb002f0535929f1199681417029ebea04aadc0c7a4224b46be99c7f5d6a16"
+"checksum nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "2f9667ddcc6cc8a43afc9b7917599d7216aa09c463919ea32c59ed6cac8bc945"
 "checksum num-integer 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)" = "e83d528d2677f0518c570baf2b7abdcf0cd2d248860b68507bdcb3e91d4c0cea"
 "checksum num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "0b3a5d7cc97d6d30d8b9bc8fa19bf45349ffe46241e8816f50f62f6d6aaabee1"
 "checksum parse-zoneinfo 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "089a398ccdcdd77b8c38909d5a1e4b67da1bc4c9dbfe6d5b536c828eddb779e5"
+"checksum proc-macro2 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)" = "77619697826f31a02ae974457af0b29b723e5619e113e9397b8b82c6bd253f09"
+"checksum quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)" = "53fa22a1994bd0f9372d7a816207d8a2677ad0325b073f5c5332760f0fb62b5c"
+"checksum rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8356f47b32624fef5b3301c1be97e5944ecdd595409cc5da11d05f211db6cfbd"
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+"checksum redox_users 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "214a97e49be64fd2c86f568dd0cb2c757d2cc53de95b273b6ad0a1c908482f26"
 "checksum regex 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "ee84f70c8c08744ea9641a731c7fadb475bf2ecc52d7f627feb833e0b3990467"
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 "checksum rustc-demangle 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "bcfe5b13211b4d78e5c2cadfebd7769197d95c639c35a50057eb4c05de811395"
+"checksum scoped_threadpool 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "1d51f5df5af43ab3f1360b429fa5e0152ac5ce8c0bd6485cae490332e96846a8"
+"checksum serde 1.0.81 (registry+https://github.com/rust-lang/crates.io-index)" = "c91eb5b0190ae87b4e2e39cbba6e3bed3ac6186935fe265f0426156c4c49961b"
+"checksum serde_derive 1.0.81 (registry+https://github.com/rust-lang/crates.io-index)" = "477b13b646f5b5b56fc95bedfc3b550d12141ce84f466f6c44b9a17589923885"
+"checksum syn 0.15.22 (registry+https://github.com/rust-lang/crates.io-index)" = "ae8b29eb5210bc5cf63ed6149cbf9adfc82ac0be023d8735c176ee74a2db4da7"
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diff --git a/Cargo.toml b/Cargo.toml
index 26598ae..fdb9795 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,6 +15,10 @@ chrono = "0.4"
 chrono-tz = "0.5"
 itertools = "0.7"
 colored = "1.6"
+toml = "0.4"
+serde = "1.0"
+serde_derive = "1.0"
+dirs = "1.0"
 
 [dependencies.ical]
 version = "0.5.*"
diff --git a/README.md b/README.md
index c8ee994..636abba 100644
--- a/README.md
+++ b/README.md
@@ -15,3 +15,17 @@ Wed Dec 12 2018
                 description
     19:00-20:00 nother event
 ```
+
+## Config file
+
+There is a config file, in toml format in your config folder:
+
+* Lin: /home/alice/.config/almanac.toml
+* Win: C:\Users\Alice\AppData\Roaming\almanac.toml
+* Mac: /Users/Alice/Library/Preferences/almanac.toml
+
+The format is:
+```
+# a list of icals to be used if none is provided to the program
+cals = ["/home/foo/mycal.ics", "/tmp/anothercal.ics"]
+```
diff --git a/src/errors.rs b/src/errors.rs
index be78bcf..9f570d2 100644
--- a/src/errors.rs
+++ b/src/errors.rs
@@ -1,5 +1,7 @@
+use std::io;
 use std::num::ParseIntError;
 use ical::parser;
+use toml;
 
 #[derive(Debug)]
 pub enum EventError {
@@ -20,3 +22,22 @@ impl From<ParseIntError> for EventError {
         EventError::IntError(err)
     }
 }
+
+#[derive(Debug)]
+pub enum ConfigError {
+    IOError(io::Error),
+    ParseError(toml::de::Error),
+    MissingPath,
+}
+
+impl From<io::Error> for ConfigError {
+    fn from(err: io::Error) -> ConfigError {
+        ConfigError::IOError(err)
+    }
+}
+
+impl From<toml::de::Error> for ConfigError {
+    fn from(err: toml::de::Error) -> ConfigError {
+        ConfigError::ParseError(err)
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index b82b190..3b0498c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2,14 +2,21 @@ extern crate ical;
 extern crate chrono;
 extern crate chrono_tz;
 extern crate itertools;
+extern crate dirs;
+extern crate toml;
+
+#[macro_use]
+extern crate serde_derive;
 
 mod date;
 mod event;
 mod periodic;
 mod calendar;
+mod config;
 mod errors;
 
 pub use calendar::Calendar;
 pub use date::Date;
 pub use chrono::Duration;
 pub use event::Event;
+pub use config::Config;
diff --git a/src/main.rs b/src/main.rs
index beca8d9..b7afdb9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -12,19 +12,27 @@ use almanac::Calendar;
 use almanac::Date;
 use almanac::Duration;
 use almanac::Event;
+use almanac::Config;
 
 fn main() {
     let mut args = env::args().skip(1);
     let period_arg = match args.next() {
         Some(arg) => arg,
         None => {
-            println!("Usage: almanac [day|week|month] ics [ics ...]");
+            println!("Usage: almanac day|week|month [ical ...]");
             return;
         }
     };
     let (first, last) = period(&period_arg);
 
-    let calendars: Vec<_> = args.map(|arg| ics_calendar(&arg)).collect();
+    let mut calendars: Vec<_> = args.map(|arg| ics_calendar(&arg)).collect();
+    if calendars.is_empty() {
+        let conf = Config::parse().unwrap();
+        for cal in &conf.cals {
+            calendars.push(ics_calendar(cal))
+        }
+    }
+
     let events = calendars
         .iter()
         .map(|c| c.iter())