Initial commit

src/taskwarrior.rs

@@ -0,0 +1,146 @@
+use chrono::{DateTime, Utc};
+use serde::{de, Deserialize, Deserializer, Serialize};
+use serde_json;
+use std::io::Error;
+use std::process::Command;
+use std::str;
+use uuid::Uuid;
+
+#[derive(Debug, Serialize, Deserialize, PartialEq)]
+#[serde(rename_all = "lowercase")]
+pub enum Recurrence {
+    Daily,
+    Weekly,
+    Monthly,
+    Yearly,
+}
+
+#[derive(Debug, Serialize, Deserialize, PartialEq)]
+#[serde(rename_all = "lowercase")]
+pub enum Status {
+    Pending,
+    Completed,
+    Recurring,
+    Deleted,
+}
+
+#[derive(Debug, Serialize, Deserialize, PartialEq)]
+pub struct ContextSwitchMetadata {
+    pub test: u32,
+}
+
+#[derive(Debug, Serialize, Deserialize, PartialEq)]
+pub struct Task {
+    pub uuid: Uuid,
+    pub id: u32,
+    #[serde(with = "tw_date_format")]
+    pub entry: DateTime<Utc>,
+    #[serde(with = "tw_date_format")]
+    pub modified: DateTime<Utc>,
+    pub status: Status,
+    pub description: String,
+    pub urgency: f64,
+    #[serde(
+        default,
+        skip_serializing_if = "Option::is_none",
+        with = "opt_tw_date_format"
+    )]
+    pub due: Option<DateTime<Utc>>,
+    #[serde(
+        default,
+        skip_serializing_if = "Option::is_none",
+        with = "opt_tw_date_format"
+    )]
+    pub end: Option<DateTime<Utc>>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub parent: Option<Uuid>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub project: Option<String>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub recur: Option<Recurrence>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub tags: Option<Vec<String>>,
+    #[serde(
+        default,
+        skip_serializing_if = "Option::is_none",
+        deserialize_with = "deserialize_from_json"
+    )]
+    pub contextswitch: Option<ContextSwitchMetadata>,
+}
+
+fn deserialize_from_json<'de, D>(deserializer: D) -> Result<Option<ContextSwitchMetadata>, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    let s: String = Deserialize::deserialize(deserializer)?;
+    serde_json::from_str(&s).map_err(de::Error::custom)
+}
+
+pub mod tw_date_format {
+    use chrono::{DateTime, TimeZone, Utc};
+    use serde::{self, Deserialize, Deserializer, Serializer};
+
+    const FORMAT: &'static str = "%Y%m%dT%H%M%SZ";
+
+    pub fn serialize<S>(date: &DateTime<Utc>, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        let s = format!("{}", date.format(FORMAT));
+        serializer.serialize_str(&s)
+    }
+
+    pub fn deserialize<'de, D>(deserializer: D) -> Result<DateTime<Utc>, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let s = String::deserialize(deserializer)?;
+        Utc.datetime_from_str(&s, FORMAT)
+            .map_err(serde::de::Error::custom)
+    }
+}
+
+pub mod opt_tw_date_format {
+    use chrono::{DateTime, TimeZone, Utc};
+    use serde::{self, Deserialize, Deserializer, Serializer};
+
+    const FORMAT: &'static str = "%Y%m%dT%H%M%SZ";
+
+    pub fn serialize<S>(date: &Option<DateTime<Utc>>, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        if let Some(ref d) = *date {
+            return serializer.serialize_str(&d.format(FORMAT).to_string());
+        }
+
+        serializer.serialize_none()
+    }
+
+    pub fn deserialize<'de, D>(deserializer: D) -> Result<Option<DateTime<Utc>>, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let s = String::deserialize(deserializer)?;
+        Utc.datetime_from_str(&s, FORMAT)
+            .map(Some)
+            .map_err(serde::de::Error::custom)
+    }
+}
+
+pub fn export(filters: Vec<&str>) -> Result<Vec<Task>, Error> {
+    let mut args = vec!["export"];
+    args.extend(filters);
+    let export_output = Command::new("task").args(args).output()?;
+
+    let tasks: Vec<Task> = serde_json::from_slice(&export_output.stdout)?;
+
+    return Ok(tasks);
+}
+
+pub fn add(add_args: Vec<&str>) -> Result<(), Error> {
+    let mut args = vec!["add"];
+    args.extend(add_args);
+    Command::new("task").args(args).output()?;
+    return Ok(());
+}