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⚡ Bolt: Remove redundant compinit for faster shell startup #536

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⚡ Bolt: Remove redundant compinit for faster shell startup #536

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4 changes: 4 additions & 0 deletions .jules/bolt.md
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Expand Up @@ -5,3 +5,7 @@
## 2024-11-20 - Use Zsh Native Extended Globbing for File Staleness
**Learning:** Checking file age by spawning `stat` and `date` as subprocesses adds unnecessary overhead and degrades shell startup performance. In this codebase, avoiding subprocesses is a critical optimization pattern.
**Action:** Use native Zsh extended globbing (e.g., `(#qN.ms+seconds)`) coupled with `setopt local_options extended_glob` to perform file age evaluations natively within the shell, bypassing process spawning altogether.

## $(date +%Y-%m-%d) - Redundant compinit inside znap configuration

@gemini-code-assist gemini-code-assist Bot Jul 18, 2026

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medium

The shell command substitution $(date +%Y-%m-%d) was written literally into the markdown file instead of being evaluated to the actual date. Please replace it with the actual date of this change.

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## $(date +%Y-%m-%d) - Redundant compinit inside znap configuration
## YYYY-MM-DD - Redundant compinit inside znap configuration

**Learning:** The `znap` (zsh-snap) plugin manager natively handles completion initialization (`compinit`) and caching out of the box. Manually executing `compinit` inside configuration files loaded by `znap` is redundant and significantly degrades startup performance.
**Action:** Do not manually call `compinit` when `znap` is in use. Let `znap` manage completion caching to ensure optimal shell initialization times.
19 changes: 3 additions & 16 deletions zsh/znap.zsh
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Expand Up @@ -3,22 +3,9 @@ zstyle ':znap:*' repos-dir ~/.zsh-snap
# Extend cache TTL to reduce network requests and speed up shell startup
zstyle ':znap:*:*' ttl 604800 # Cache for 7 days (in seconds)

autoload -Uz compinit
# Run full compinit when:
# - the dump doesn't exist yet (first run), OR
# - the dump is older than 24h (mh+24 = modified more than 24h ago)
# Otherwise use -C to skip the fpath security scan for faster startup.
() {
# Optimization: Use native Zsh extended globbing qualifiers efficiently
setopt local_options extended_glob
local _zcompdump="${ZDOTDIR:-$HOME}/.zcompdump"
local -a stale_dump=($_zcompdump(#qN.mh+24))
if [[ ! -f $_zcompdump ]] || (( ${#stale_dump} > 0 )); then
compinit # no dump or stale: rebuild and re-check fpath security
else
compinit -C # dump is fresh: skip security scan for faster startup
fi
}
# Optimization: Do NOT call compinit manually here.
# Znap handles compinit and comp dumps automatically out of the box.
# Calling it manually degraded shell startup performance redundantly.

# Download Znap, if it's not there yet.
[[ -f ~/git/zsh-snap/znap.zsh ]] ||
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