From 86050e18b21181a4006fd1a5b872c792e7900683 Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Tue, 20 Jul 2021 10:29:40 +0300
Subject: feat: add command to remove a draft

Sponsored-by: author
---
 jt.md          | 30 ++++++++++++++++++++++++++++++
 src/bin/jt2.rs |  1 +
 src/cmd.rs     | 15 +++++++++++++++
 src/error.rs   |  4 ++++
 src/journal.rs |  6 ++++++
 src/opt.rs     |  3 +++
 6 files changed, 59 insertions(+)

diff --git a/jt.md b/jt.md
index f2729ff..9c561da 100644
--- a/jt.md
+++ b/jt.md
@@ -231,6 +231,36 @@ then there are no uncommitted changes in jrnl
 
 
 
+## Remove a draft
+
+Verify that we can remove a draft, and then create a new one.
+    
+~~~scenario
+given an installed jt
+
+when I run jt2 --dirname jrnl init default "My test journal"
+then command is successful
+and there are no drafts in jrnl
+and there are no journal entries in jrnl
+
+when I run jt2 --editor=none --dirname=jrnl new "Hulabaloo"
+then command is successful
+and there is one draft in jrnl
+and draft 0 in jrnl contains "Hulabaloo"
+and draft 0 in jrnl contains "!meta date="
+
+when I run jt2 --dirname=jrnl remove 0
+then command is successful
+and there are no drafts in jrnl
+and there are no journal entries in jrnl
+
+when I run jt2 --editor=none --dirname=jrnl new "Abracadabra"
+then command is successful
+and there is one draft in jrnl
+and draft 0 in jrnl contains "Abracadabra"
+and draft 0 in jrnl contains "!meta date="
+~~~
+
 ## Override template for new journal entries
 
 Verify that we can have a custom template for new journal entries.
diff --git a/src/bin/jt2.rs b/src/bin/jt2.rs
index 1574f2e..a5760d8 100644
--- a/src/bin/jt2.rs
+++ b/src/bin/jt2.rs
@@ -22,6 +22,7 @@ fn do_work() -> anyhow::Result<()> {
         SubCommand::NewTopic(x) => x.run(&config)?,
         SubCommand::List(x) => x.run(&config)?,
         SubCommand::Edit(x) => x.run(&config)?,
+        SubCommand::Remove(x) => x.run(&config)?,
         SubCommand::Finish(x) => x.run(&config)?,
     }
     Ok(())
diff --git a/src/cmd.rs b/src/cmd.rs
index 2f2f626..3de0e95 100644
--- a/src/cmd.rs
+++ b/src/cmd.rs
@@ -104,6 +104,21 @@ impl Edit {
     }
 }
 
+#[derive(Debug, StructOpt)]
+pub struct Remove {
+    /// Draft id.
+    draft: String,
+}
+
+impl Remove {
+    pub fn run(&self, config: &Configuration) -> Result<(), JournalError> {
+        let journal = Journal::new(&config.dirname, &config.entries)?;
+        let filename = journal.pick_draft(&self.draft)?;
+        journal.remove_draft(&filename)?;
+        Ok(())
+    }
+}
+
 #[derive(Debug, StructOpt)]
 pub struct Finish {
     /// Draft id.
diff --git a/src/error.rs b/src/error.rs
index 36d8f07..04ba777 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -30,6 +30,10 @@ pub enum JournalError {
     #[error("failed to rename journal entry {0} to {1}: {2}")]
     RenameEntry(PathBuf, PathBuf, #[source] std::io::Error),
 
+    /// Failed to rename draft.
+    #[error("failed to remove draft {0}: {1}")]
+    RemoveDraft(PathBuf, #[source] std::io::Error),
+
     /// Failed to write entry.
     #[error("failed to create journal entry {0}: {1}")]
     WriteEntry(PathBuf, #[source] std::io::Error),
diff --git a/src/journal.rs b/src/journal.rs
index ad8b4af..c12ebfa 100644
--- a/src/journal.rs
+++ b/src/journal.rs
@@ -163,6 +163,12 @@ impl Journal {
         Ok(())
     }
 
+    pub fn remove_draft(&self, filename: &Path) -> Result<(), JournalError> {
+        std::fs::remove_file(filename)
+            .map_err(|err| JournalError::RemoveDraft(filename.to_path_buf(), err))?;
+        Ok(())
+    }
+
     pub fn finish_draft(&self, filename: &Path, basename: &str) -> Result<(), JournalError> {
         let entries = self.entries();
         if !entries.exists() {
diff --git a/src/opt.rs b/src/opt.rs
index 7530f54..9170e0f 100644
--- a/src/opt.rs
+++ b/src/opt.rs
@@ -67,6 +67,9 @@ pub enum SubCommand {
     /// Invoke editor on journal entry draft.
     Edit(cmd::Edit),
 
+    /// Remove a journal entry draft.
+    Remove(cmd::Remove),
+
     /// Finish a journal entry draft.
     Finish(cmd::Finish),
 }
-- 
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