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feat: make buffer size limits configurable via environment variables

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Allow overriding MAX_TERMINAL_BUFFER_SIZE, TRIM_TERMINAL_TO, MAX_TEXT_OUTPUT_SIZE,
TRIM_TEXT_TO, and MAX_MESSAGES via CODEMAN_* env vars, falling back to existing
defaults. Enables users with fewer sessions or more RAM to tune buffer sizes
without patching source.

Closes #48

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
arkon
2026-03-24 18:40:40 +01:00
co-authored by Claude Opus 4.6
parent b1d3b27e5b
commit 2709b2fe49
1 changed files with 10 additions and 5 deletions
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src/config/buffer-limits.ts
+10 -5
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@@ -22,14 +22,16 @@
* Maximum terminal buffer size in characters. * Maximum terminal buffer size in characters.
* Contains raw terminal output with ANSI escape sequences. * Contains raw terminal output with ANSI escape sequences.
* Reduced from 5MB to 2MB for better render performance. * Reduced from 5MB to 2MB for better render performance.
* Override: CODEMAN_MAX_TERMINAL_BUFFER (bytes)
*/ */
export const MAX_TERMINAL_BUFFER_SIZE = 2 * 1024 * 1024; // 2MB export const MAX_TERMINAL_BUFFER_SIZE = parseInt(process.env.CODEMAN_MAX_TERMINAL_BUFFER || '') || 2 * 1024 * 1024;
/** /**
* Size to trim terminal buffer to when max is exceeded. * Size to trim terminal buffer to when max is exceeded.
* Keeps the most recent portion to preserve context. * Keeps the most recent portion to preserve context.
* Override: CODEMAN_TRIM_TERMINAL_TO (bytes)
*/ */
export const TRIM_TERMINAL_TO = 1.5 * 1024 * 1024; // 1.5MB export const TRIM_TERMINAL_TO = parseInt(process.env.CODEMAN_TRIM_TERMINAL_TO || '') || 1.5 * 1024 * 1024;
// ============================================================================ // ============================================================================
// Text Output Buffer Limits // Text Output Buffer Limits
@@ -38,13 +40,15 @@ export const TRIM_TERMINAL_TO = 1.5 * 1024 * 1024; // 1.5MB
/** /**
* Maximum text output buffer size in characters. * Maximum text output buffer size in characters.
* Contains ANSI-stripped text for search and analysis. * Contains ANSI-stripped text for search and analysis.
* Override: CODEMAN_MAX_TEXT_OUTPUT (bytes)
*/ */
export const MAX_TEXT_OUTPUT_SIZE = 1 * 1024 * 1024; // 1MB export const MAX_TEXT_OUTPUT_SIZE = parseInt(process.env.CODEMAN_MAX_TEXT_OUTPUT || '') || 1 * 1024 * 1024;
/** /**
* Size to trim text output buffer to when max is exceeded. * Size to trim text output buffer to when max is exceeded.
* Override: CODEMAN_TRIM_TEXT_TO (bytes)
*/ */
export const TRIM_TEXT_TO = 768 * 1024; // 768KB export const TRIM_TEXT_TO = parseInt(process.env.CODEMAN_TRIM_TEXT_TO || '') || 768 * 1024;
// ============================================================================ // ============================================================================
// Message Buffer Limits // Message Buffer Limits
@@ -53,8 +57,9 @@ export const TRIM_TEXT_TO = 768 * 1024; // 768KB
/** /**
* Maximum number of Claude JSON messages to keep in memory per session. * Maximum number of Claude JSON messages to keep in memory per session.
* Older messages are discarded when limit is exceeded. * Older messages are discarded when limit is exceeded.
* Override: CODEMAN_MAX_MESSAGES (count)
*/ */
export const MAX_MESSAGES = 1000; export const MAX_MESSAGES = parseInt(process.env.CODEMAN_MAX_MESSAGES || '') || 1000;
// ============================================================================ // ============================================================================
// Line Buffer Limits // Line Buffer Limits