Misc: bash, rust, helix

- Fix: `.bashrc` not loaded when `.bash_login` doesn't exist
- Fix: Rust install script error when `cc` doesn't exist
- Style: use tabs
- Helix: use tabs for bash, toml, & markdown
- Helix: highlight rust scripts

auto/bash/bash

@@ -39,10 +39,24 @@ EOF
 if [ -f ~/.bash_profile ]; then
 	mv ~/.bash_profile ~/.bash_login
 fi
-cat >> ~/.bash_login << 'EOF'
+if [ -f ~/.bash_login ]; then
+	cat >> ~/.bash_login << 'EOF'
 
 # custom
 
+EOF
+else
+	cat >> ~/.bash_login << 'EOF'
+
+# custom
+
+if [ -f ~/.bashrc ]; then
+	. ~/.bashrc
+fi
+
+EOF
+fi
+cat >> ~/.bash_login << 'EOF'
 if [ -z "$TMUX" ] && [ -n "$SSH_TTY" ]; then
 	tput sc
 	tput smso

manual/helix/helix

@@ -1,22 +1,22 @@
 #!/bin/sh -e
 if [ "$1" = '-f' ]; then
-  force=true
+	force=true
 fi
 if ! command -v cargo > /dev/null; then
-  echo "Error: cargo not found"
-  exit 1
+	echo "Error: cargo not found"
+	exit 1
 fi
 if ! command -v c++ > /dev/null; then
-  echo "Error: c++ not found"
-  exit 1
+	echo "Error: c++ not found"
+	exit 1
 fi
 if [ -d ~/.config/helix ]; then
-  if [ "$force" = true ]; then
-    rm -rf ~/.config/helix
-  else
-    echo "Error: helix config files already exist; use -f to force erase and reinstall"
-    exit 1
-  fi
+	if [ "$force" = true ]; then
+		rm -rf ~/.config/helix
+	else
+		echo "Error: helix config files already exist; use -f to force erase and reinstall"
+		exit 1
+	fi
 fi
 rm -rf helix-git
 git clone --depth 1 --branch 23.03 https://github.com/helix-editor/helix helix-git
@@ -38,7 +38,7 @@ rulers = [101]
 left = ["mode", "spinner", "file-name"]
 center = ["position-percentage"]
 right = [
-  "version-control", "diagnostics", "selections", "position", "file-encoding", "file-line-ending"
+	"version-control", "diagnostics", "selections", "position", "file-encoding", "file-line-ending"
 ]
 
 [keys.normal]
@@ -54,9 +54,9 @@ auto-pairs = false
 
 [[language]]
 name = 'rust'
-indent.unit = "\t"
-indent.tab-width = 4
+indent = { tab-width = 4, unit = "\t" }
 config.checkOnSave = { command = "clippy" }
+shebangs = ["rust-script"]
 
 [[language]]
 name = "c"
@@ -68,11 +68,19 @@ indent = { tab-width = 4, unit = "\t" }
 
 [[language]]
 name = 'java'
-indent.unit = "\t"
-indent.tab-width = 4
+indent = { tab-width = 4, unit = "\t" }
+
+[[language]]
+name = "bash"
+indent = { tab-width = 4, unit = "\t" }
+
+[[language]]
+name = "toml"
+indent = { tab-width = 4, unit = "\t" }
 
 [[language]]
 name = "markdown"
+indent = { tab-width = 4, unit = "\t" }
 language-server = { command = "ltex-ls" }
 file-types = ["md"]
 scope = "source.markdown"

manual/rust/rust

@@ -1,18 +1,22 @@
 #!/bin/sh -e
 if [ $# -gt 2 ]; then
-  echo "Usage: $0 [-f]"
-  exit 1
+	echo "Usage: $0 [-f]"
+	exit 1
 fi
 if [ "$1" = '-f' ]; then
-  force=true
+	force=true
 fi
 if ! command -v curl > /dev/null; then
-  echo "Error: curl not found"
-  exit 1
+	echo "Error: curl not found"
+	exit 1
+fi
+if ! command -v cc > /dev/null; then
+	echo "Error: cc not found"
+	exit 1
 fi
 if command -v cargo > /dev/null && [ "$force" != true ]; then
-  echo "Error: rust already installed; use -f to force"
-  exit 1
+	echo "Error: rust already installed; use -f to force"
+	exit 1
 fi
 curl --proto '=https' --tlsv1.3 -sSf https://sh.rustup.rs | sh -s -- -y
 . "$HOME/.cargo/env"