From 1698992de6a601e65a0598ed132cab5419f7e578 Mon Sep 17 00:00:00 2001
From: Alex Vinyals <alevinval@gmail.com>
Date: Sun, 9 Jul 2023 16:35:07 +0200
Subject: [PATCH] Fix `:log-open` when `--log` is specified (#7573)

---
 helix-loader/src/lib.rs | 44 ++++++++++++++++++++++++++---------------
 helix-term/src/main.rs  | 24 ++++++----------------
 2 files changed, 34 insertions(+), 34 deletions(-)

diff --git a/helix-loader/src/lib.rs b/helix-loader/src/lib.rs
index ad4ad899..c51c9c7d 100644
--- a/helix-loader/src/lib.rs
+++ b/helix-loader/src/lib.rs
@@ -11,21 +11,20 @@ static RUNTIME_DIRS: once_cell::sync::Lazy<Vec<PathBuf>> =
 
 static CONFIG_FILE: once_cell::sync::OnceCell<PathBuf> = once_cell::sync::OnceCell::new();
 
-pub fn initialize_config_file(specified_file: Option<PathBuf>) {
-    let config_file = specified_file.unwrap_or_else(|| {
-        let config_dir = config_dir();
-
-        if !config_dir.exists() {
-            std::fs::create_dir_all(&config_dir).ok();
-        }
+static LOG_FILE: once_cell::sync::OnceCell<PathBuf> = once_cell::sync::OnceCell::new();
 
-        config_dir.join("config.toml")
-    });
-
-    // We should only initialize this value once.
+pub fn initialize_config_file(specified_file: Option<PathBuf>) {
+    let config_file = specified_file.unwrap_or_else(default_config_file);
+    ensure_parent_dir(&config_file);
     CONFIG_FILE.set(config_file).ok();
 }
 
+pub fn initialize_log_file(specified_file: Option<PathBuf>) {
+    let log_file = specified_file.unwrap_or_else(default_log_file);
+    ensure_parent_dir(&log_file);
+    LOG_FILE.set(log_file).ok();
+}
+
 /// A list of runtime directories from highest to lowest priority
 ///
 /// The priority is:
@@ -122,10 +121,11 @@ pub fn cache_dir() -> PathBuf {
 }
 
 pub fn config_file() -> PathBuf {
-    CONFIG_FILE
-        .get()
-        .map(|path| path.to_path_buf())
-        .unwrap_or_else(|| config_dir().join("config.toml"))
+    CONFIG_FILE.get().map(|path| path.to_path_buf()).unwrap()
+}
+
+pub fn log_file() -> PathBuf {
+    LOG_FILE.get().map(|path| path.to_path_buf()).unwrap()
 }
 
 pub fn workspace_config_file() -> PathBuf {
@@ -136,7 +136,7 @@ pub fn lang_config_file() -> PathBuf {
     config_dir().join("languages.toml")
 }
 
-pub fn log_file() -> PathBuf {
+pub fn default_log_file() -> PathBuf {
     cache_dir().join("helix.log")
 }
 
@@ -227,6 +227,18 @@ pub fn find_workspace() -> (PathBuf, bool) {
     (current_dir, true)
 }
 
+fn default_config_file() -> PathBuf {
+    config_dir().join("config.toml")
+}
+
+fn ensure_parent_dir(path: &Path) {
+    if let Some(parent) = path.parent() {
+        if !parent.exists() {
+            std::fs::create_dir_all(parent).ok();
+        }
+    }
+}
+
 #[cfg(test)]
 mod merge_toml_tests {
     use std::str;
diff --git a/helix-term/src/main.rs b/helix-term/src/main.rs
index 73513bf3..97e962e0 100644
--- a/helix-term/src/main.rs
+++ b/helix-term/src/main.rs
@@ -4,9 +4,8 @@ use helix_loader::VERSION_AND_GIT_HASH;
 use helix_term::application::Application;
 use helix_term::args::Args;
 use helix_term::config::{Config, ConfigLoadError};
-use std::path::PathBuf;
 
-fn setup_logging(logpath: PathBuf, verbosity: u64) -> Result<()> {
+fn setup_logging(verbosity: u64) -> Result<()> {
     let mut base_config = fern::Dispatch::new();
 
     base_config = match verbosity {
@@ -27,7 +26,7 @@ fn setup_logging(logpath: PathBuf, verbosity: u64) -> Result<()> {
                 message
             ))
         })
-        .chain(fern::log_file(logpath)?);
+        .chain(fern::log_file(helix_loader::log_file())?);
 
     base_config.chain(file_config).apply()?;
 
@@ -41,12 +40,6 @@ fn main() -> Result<()> {
 
 #[tokio::main]
 async fn main_impl() -> Result<i32> {
-    let logpath = helix_loader::log_file();
-    let parent = logpath.parent().unwrap();
-    if !parent.exists() {
-        std::fs::create_dir_all(parent).ok();
-    }
-
     let help = format!(
         "\
 {} {}
@@ -78,7 +71,7 @@ FLAGS:
         VERSION_AND_GIT_HASH,
         env!("CARGO_PKG_AUTHORS"),
         env!("CARGO_PKG_DESCRIPTION"),
-        logpath.display(),
+        helix_loader::default_log_file().display(),
     );
 
     let args = Args::parse_args().context("could not parse arguments")?;
@@ -116,15 +109,10 @@ FLAGS:
         return Ok(0);
     }
 
-    let logpath = args.log_file.as_ref().cloned().unwrap_or(logpath);
-    setup_logging(logpath, args.verbosity).context("failed to initialize logging")?;
-
-    let config_dir = helix_loader::config_dir();
-    if !config_dir.exists() {
-        std::fs::create_dir_all(&config_dir).ok();
-    }
-
     helix_loader::initialize_config_file(args.config_file.clone());
+    helix_loader::initialize_log_file(args.log_file.clone());
+
+    setup_logging(args.verbosity).context("failed to initialize logging")?;
 
     let config = match Config::load_default() {
         Ok(config) => config,