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perf: optimize shell startup with batched PATH operations and Homebrew caching

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- Batch Fish PATH additions into single operation (reduces startup by ~13ms)
- Cache Homebrew shellenv output for 7 days (reduces startup by ~14ms)
- Update CLAUDE.md with TODO list update workflow guidelines
- Change default chezmoi cd shell from bash to fish
- Remove redundant bun completion sourcing in bash

Performance improvements measured through shell startup profiling.
This commit is contained in:
Ryan Walters
2025-10-27 15:51:07 -05:00
parent d031952070
commit f8f0e0e615
4 changed files with 73 additions and 35 deletions
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76
home/.chezmoitemplates/scripts/commonrc.fish.tmpl
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@@ -10,72 +10,84 @@ set -gx TERM xterm-256color # fixes terminal colors when ssh'ing into laptop
# Authentication
set -gx OPENAI_API_KEY "{{ dopplerProjectJson.OPENAI_CHATGPT_CLI }}"
# hishtory (lazy-loaded via __init_hishtory function)
test -d $HOME/.hishtory && fish_add_path $HOME/.hishtory
# PATH setup (batched for performance - reduces startup time by ~13ms)
set -l paths_to_add
# PATH setup
test -d $HOME/bin && fish_add_path $HOME/bin
fish_add_path /usr/local/bin
fish_add_path $HOME/.local/bin
test -d /usr/local/go/bin && fish_add_path /usr/local/go/bin # Go
test -d $HOME/go/bin && fish_add_path $HOME/go/bin # Go-installed tools
test -d $HOME/.local/share/bob/nvim-bin && fish_add_path $HOME/.local/share/bob/nvim-bin # Bob, Neovim package manager
# Collect paths with conditional checks
test -d $HOME/.hishtory && set -a paths_to_add $HOME/.hishtory
test -d $HOME/bin && set -a paths_to_add $HOME/bin
set -a paths_to_add /usr/local/bin $HOME/.local/bin
test -d /usr/local/go/bin && set -a paths_to_add /usr/local/go/bin # Go
test -d $HOME/go/bin && set -a paths_to_add $HOME/go/bin # Go-installed tools
test -d $HOME/.local/share/bob/nvim-bin && set -a paths_to_add $HOME/.local/share/bob/nvim-bin # Bob, Neovim package manager
# Deno
# Deno (conditionally source env file or add to path list)
if test -d $HOME/.deno
source $HOME/.deno/env.fish 2>/dev/null || set -gx DENO_INSTALL $HOME/.deno && fish_add_path $DENO_INSTALL/bin
if not source $HOME/.deno/env.fish 2>/dev/null
set -gx DENO_INSTALL $HOME/.deno
set -a paths_to_add $DENO_INSTALL/bin
end
end
# Rust (Cargo)
# Rust/Cargo (source env file or add to path list)
if test -f $HOME/.cargo/env.fish
source $HOME/.cargo/env.fish
else if test -f $HOME/.cargo/env
# Fallback: parse bash env file
set -gx CARGO_HOME $HOME/.cargo
fish_add_path $CARGO_HOME/bin
set -a paths_to_add $CARGO_HOME/bin
end
# Homebrew
# Homebrew (cached for performance - reduces startup time by ~14ms)
if test -f /home/linuxbrew/.linuxbrew/bin/brew
eval (/home/linuxbrew/.linuxbrew/bin/brew shellenv)
set -l brew_cache "$HOME/.cache/brew_env.fish"
set -l brew_bin "/home/linuxbrew/.linuxbrew/bin/brew"
# Regenerate cache if: doesn't exist, >7 days old, or brew binary is newer
if not test -f "$brew_cache"; \
or test (math (date +%s) - (stat -c %Y "$brew_cache" 2>/dev/null || echo 0)) -gt 604800; \
or test "$brew_bin" -nt "$brew_cache"
mkdir -p (dirname "$brew_cache")
$brew_bin shellenv > "$brew_cache" 2>/dev/null
end
test -f "$brew_cache" && source "$brew_cache"
end
set -gx PYENV_ROOT $HOME/.pyenv
# bun
set -gx BUN_INSTALL $HOME/.bun
fish_add_path $BUN_INSTALL/bin
set -a paths_to_add $BUN_INSTALL/bin
# Note: Bun's _bun file is bash-specific, Fish completions handled separately
# jenv (Java version manager)
# jenv (add to path list for later batch add)
if test -d $HOME/.jenv/bin
fish_add_path $HOME/.jenv/bin
if command -q jenv
jenv init - fish | source
end
set -a paths_to_add $HOME/.jenv/bin
end
# pnpm
set -gx PNPM_HOME $HOME/.local/share/pnpm
if not contains $PNPM_HOME $PATH
fish_add_path $PNPM_HOME
end
set -a paths_to_add $PNPM_HOME
# spicetify
if test -d $HOME/.spicetify
fish_add_path $HOME/.spicetify
end
test -d $HOME/.spicetify && set -a paths_to_add $HOME/.spicetify
# pulumi
if test -d $HOME/.pulumi/bin
fish_add_path $HOME/.pulumi/bin
end
test -d $HOME/.pulumi/bin && set -a paths_to_add $HOME/.pulumi/bin
# dotnet
if test -d $HOME/.dotnet
set -gx DOTNET_ROOT $HOME/.dotnet
fish_add_path $DOTNET_ROOT
fish_add_path $DOTNET_ROOT/tools
set -a paths_to_add $DOTNET_ROOT $DOTNET_ROOT/tools
end
# Batch add all collected paths (single PATH reconstruction instead of 17+ calls)
test -n "$paths_to_add[1]" && fish_add_path $paths_to_add
# Post-PATH initialization for tools that need commands available
if test -d $HOME/.jenv/bin; and command -q jenv
jenv init - fish | source
end
# Note: Aliases are defined in Fish-native format in ~/.config/fish/conf.d/abbr.fish