Optimize shell startup and add Codespaces support

.devcontainer/devcontainer.json

@@ -0,0 +1,17 @@
+{
+  "name": "dotfiles",
+  "image": "mcr.microsoft.com/devcontainers/base:ubuntu",
+  "postCreateCommand": "./install.sh",
+  "customizations": {
+    "vscode": {
+      "settings": {
+        "terminal.integrated.defaultProfile.linux": "zsh"
+      },
+      "extensions": [
+        "esbenp.prettier-vscode",
+        "ms-azuretools.vscode-docker",
+        "sharat.vscode-brewfile"
+      ]
+    }
+  }
+}

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Build Docker image
         run: docker build . -t dotfiles
@@ -34,16 +34,20 @@ jobs:
     steps:
     - name: Remove existing awscli
       run: |
-        rm /usr/local/bin/2to3
-        rm /usr/local/bin/aws
-        rm /usr/local/bin/aws_completer
+        rm -f /usr/local/bin/2to3* || true
+        rm -f /usr/local/bin/aws || true
+        rm -f /usr/local/bin/aws_completer || true
       if: ${{ startsWith(matrix.os, 'macos') }}
     - name: Unlink preinstalled node
-      run: brew unlink node@16
+      run: brew unlink node@22 || brew unlink node@20 || brew unlink node@18 || true
       if: ${{ startsWith(matrix.os, 'macos') }}
 
     - name: Checkout repo
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
+
+    - name: Skip Homebrew Casks
+      run: echo "HOMEBREW_BUNDLE_CASK_SKIP=$(HOMEBREW_NO_AUTO_UPDATE=1 brew bundle list --casks --file install/Brewfile | tr '\n' ' ')" >> $GITHUB_ENV
+      if: ${{ startsWith(matrix.os, 'macos') }}
 
     - name: Run install command
       run: ./install.sh

Dockerfile

@@ -2,11 +2,11 @@ FROM ubuntu:latest
 
 LABEL Name=dotfiles
 
-RUN apt-get -y update && apt-get install -y --no-install-recommends make sudo
+RUN apt-get -y update && apt-get install -y --no-install-recommends make sudo adduser
 
-# Add user
-RUN addgroup --gid 1000 user \
-    && adduser --gecos "First Last,RoomNumber,WorkPhone,HomePhone" --uid 1000 --disabled-password  --gid 1000 user
+# Add user (use different GID to avoid conflicts with existing ubuntu user)
+RUN groupadd -g 1001 user \
+    && useradd -m -u 1001 -g 1001 -c "First Last,RoomNumber,WorkPhone,HomePhone" -s /bin/bash user
 RUN echo "user ALL=(ALL) NOPASSWD:ALL" | sudo tee -a /etc/sudoers
 
 USER user
@@ -16,4 +16,4 @@ ADD . .
 
 ENV CI=1
 
-CMD bash -c './install.sh && if [[ -n $(zsh -c return) ]]; then exit 1; fi'
+CMD ["bash", "-c", "./install.sh && if [[ -n $(zsh -c return) ]]; then exit 1; fi"]

install/Brewfile

@@ -61,8 +61,6 @@ brew "mas"
 brew "mysql", restart_service: true
 # Platform built on V8 to build network applications
 brew "node"
-# Platform built on V8 to build network applications
-brew "node@16"
 # Shell command parallelization utility
 brew "parallel"
 # General-purpose scripting language

install/Brewfile.lock.json

@@ -2192,45 +2192,6 @@
           }
         }
       },
-      "node@16": {
-        "version": "16.17.0",
-        "bottle": {
-          "rebuild": 0,
-          "root_url": "https://ghcr.io/v2/homebrew/core",
-          "files": {
-            "arm64_monterey": {
-              "cellar": ":any",
-              "url": "https://ghcr.io/v2/homebrew/core/node/16/blobs/sha256:8058af2eb34df2839a23a55cb8cb6d4df7632484695a172a5e6b1873d0fecd44",
-              "sha256": "8058af2eb34df2839a23a55cb8cb6d4df7632484695a172a5e6b1873d0fecd44"
-            },
-            "arm64_big_sur": {
-              "cellar": ":any",
-              "url": "https://ghcr.io/v2/homebrew/core/node/16/blobs/sha256:3aba0ec892bf7a15ad2fad870dc26c11d39a9476622f9c0d28f31de7254a2a45",
-              "sha256": "3aba0ec892bf7a15ad2fad870dc26c11d39a9476622f9c0d28f31de7254a2a45"
-            },
-            "monterey": {
-              "cellar": ":any",
-              "url": "https://ghcr.io/v2/homebrew/core/node/16/blobs/sha256:03ea2f9c2df1c3b0b39eadcfd22b56fb2a41fb93620ba77c0b8f0db652d22cfe",
-              "sha256": "03ea2f9c2df1c3b0b39eadcfd22b56fb2a41fb93620ba77c0b8f0db652d22cfe"
-            },
-            "big_sur": {
-              "cellar": ":any",
-              "url": "https://ghcr.io/v2/homebrew/core/node/16/blobs/sha256:b5faacaa19856e18e85a7c2830d82d879b3a0fce2f3296509925aaa739874b85",
-              "sha256": "b5faacaa19856e18e85a7c2830d82d879b3a0fce2f3296509925aaa739874b85"
-            },
-            "catalina": {
-              "cellar": ":any",
-              "url": "https://ghcr.io/v2/homebrew/core/node/16/blobs/sha256:25ed0921163ae9b71c51ac0978c59419db14e630d609d7a6b9cf219ba7963c1d",
-              "sha256": "25ed0921163ae9b71c51ac0978c59419db14e630d609d7a6b9cf219ba7963c1d"
-            },
-            "x86_64_linux": {
-              "cellar": ":any_skip_relocation",
-              "url": "https://ghcr.io/v2/homebrew/core/node/16/blobs/sha256:f09c9862d44fec050060b662a64e28da5db8d6229a6daacc559e0524bcb47fe4",
-              "sha256": "f09c9862d44fec050060b662a64e28da5db8d6229a6daacc559e0524bcb47fe4"
-            }
-          }
-        }
-      },
       "rust": {
         "version": "1.63.0",
         "bottle": {

runcom/.zshrc

@@ -7,7 +7,8 @@ for DOTFILE in "$DOTFILES_DIR"/system/.{path,function,function_*,alias,grep,prom
   [ -f "$DOTFILE" ] && . "$DOTFILE"
 done
 
-if is-macos; then
+# Source macOS-specific files when not in a Codespace
+if [ -z "$CODESPACES" ] && is-macos; then
   for DOTFILE in "$DOTFILES_DIR"/system/.{alias,function,fnm}.macos; do
     [ -f "$DOTFILE" ] && . "$DOTFILE"
   done

system/.autojump

@@ -1,5 +1,7 @@
 # Autojump
 
 if is-executable autojump; then
-  [[ -s $(brew --prefix)/etc/profile.d/autojump.sh ]] && . $(brew --prefix)/etc/profile.d/autojump.sh
+  # Cache brew prefix for performance (avoid multiple slow calls)
+  BREW_PREFIX=${BREW_PREFIX:-$(brew --prefix)}
+  [[ -s $BREW_PREFIX/etc/profile.d/autojump.sh ]] && . $BREW_PREFIX/etc/profile.d/autojump.sh
 fi

system/.completion

@@ -1,7 +1,9 @@
 # Brew
 
 if is-executable brew; then
-  FPATH=$(brew --prefix)/share/zsh/site-functions:$FPATH
+  # Cache brew prefix for performance (avoid multiple slow calls)
+  BREW_PREFIX=${BREW_PREFIX:-$(brew --prefix)}
+  FPATH=$BREW_PREFIX/share/zsh/site-functions:$FPATH
 
   # This is done by oh-my-zsh
   #autoload -Uz compinit

system/.oh-my-zsh

@@ -40,10 +40,9 @@ export ZSH=$HOME/.config/oh-my-zsh
 # Uncomment the following line to display red dots whilst waiting for completion.
 # COMPLETION_WAITING_DOTS="true"
 
-# Uncomment the following line if you want to disable marking untracked files
-# under VCS as dirty. This makes repository status check for large repositories
-# much, much faster.
-# DISABLE_UNTRACKED_FILES_DIRTY="true"
+# Performance: Disable marking untracked files under VCS as dirty.
+# This makes repository status check for large repositories much faster.
+DISABLE_UNTRACKED_FILES_DIRTY="true"
 
 # Uncomment the following line if you want to change the command execution time
 # stamp shown in the history command output.
@@ -59,10 +58,16 @@ VSCODE=code
 # Which plugins would you like to load? (plugins can be found in ~/.oh-my-zsh/plugins/*)
 # Custom plugins may be added to ~/.oh-my-zsh/custom/plugins/
 # Example format: plugins=(rails git textmate ruby lighthouse)
-plugins=(dash docker git gitignore npm macos vscode)
 
-# Add version manager when not in a Codespace
+# Base plugins that work everywhere
+plugins=(git gitignore npm docker vscode)
+
+# Add macOS-specific plugins when not in a Codespace
 if [ -z "$CODESPACES" ]; then
+  if is-macos; then
+    plugins+=(dash macos)
+  fi
+  # Add version manager (works on all platforms, skip in Codespaces)
   plugins+=(asdf)
 fi
 

system/.prompt

@@ -1,12 +1,15 @@
 # Setup zsh-syntax-highlighting
 if is-executable brew; then
-  ZSH_SYNTAX_HIGHLITING_FILE=$(brew --prefix)/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
-  if [[ -f $ZSH_SYNTAX_HIGHLITING_FILE ]]; then
-    source $ZSH_SYNTAX_HIGHLITING_FILE
+  # Cache brew prefix for performance (avoid multiple slow calls)
+  BREW_PREFIX=${BREW_PREFIX:-$(brew --prefix)}
+
+  ZSH_SYNTAX_HIGHLIGHTING_FILE=$BREW_PREFIX/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
+  if [[ -f $ZSH_SYNTAX_HIGHLIGHTING_FILE ]]; then
+    source $ZSH_SYNTAX_HIGHLIGHTING_FILE
   fi
 
   # Setup zsh-autosuggestions
-  ZSH_AUTOSUGGEST_FILE=$(brew --prefix)/share/zsh-autosuggestions/zsh-autosuggestions.zsh
+  ZSH_AUTOSUGGEST_FILE=$BREW_PREFIX/share/zsh-autosuggestions/zsh-autosuggestions.zsh
   if [[ -f $ZSH_AUTOSUGGEST_FILE ]]; then
     ZSH_AUTOSUGGEST_STRATEGY=(match_prev_cmd history)
     ZSH_AUTOSUGGEST_USE_ASYNC=true