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fix(cli): restore fallback paste collapse + handle long single-line pastes (#32447)

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Follow-up to #32087 after community report from @ethernet that 8000-char
single-line pastes get dumped raw into the input box.

A) Fallback regression revert
   paste_collapse_threshold_fallback default: 0 -> 5
   #32087 disabled the fallback handler by default. The fallback path
   has been always-on with line_count >= 5 since #3065 (March 2026);
   the previous shape was the salvaged contributor's design and didn't
   match pre-existing behavior for terminals without bracketed paste
   support (Windows terminals, some SSH setups). Restoring the original
   on-by-default.

B) Long single-line paste guard
   New config key: paste_collapse_char_threshold (default 2000)
   Bracketed-paste handler and fallback handler now BOTH collapse when
   line count >= line threshold OR total char length >= char threshold.
   Catches the case ethernet hit: ~8000 chars of minified JSON / log
   output on a single line dumped raw into the buffer.
   TUI mirrors the same config via uiStore.pasteCollapseChars.
   Set 0 to disable.

Defaults verified:
  paste_collapse_threshold: 5
  paste_collapse_threshold_fallback: 5
  paste_collapse_char_threshold: 2000

Tests:
  tests/hermes_cli/test_config.py: 87/87 pass
  ui-tui useConfigSync.test.ts: 34/34 pass
  ui-tui useComposerState.test.ts: 9/9 pass
  tsc: 0 new errors in touched files
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Teknium 2026-05-25 23:49:01 -07:00 • committed by GitHub
parent 31c8d5ff5f
commit 2517917de3
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7 changed files with 46 additions and 11 deletions
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cli.py
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@ -13352,7 +13352,10 @@ class HermesCLI:
line_count = pasted_text.count('\n')
buf = event.current_buffer
threshold = self.config.get("paste_collapse_threshold", 5)
if threshold > 0 and line_count >= threshold and not buf.text.strip().startswith('/'):
char_threshold = self.config.get("paste_collapse_char_threshold", 2000)
lines_hit = threshold > 0 and line_count >= threshold
chars_hit = char_threshold > 0 and len(pasted_text) >= char_threshold
if (lines_hit or chars_hit) and not buf.text.strip().startswith('/'):
_paste_counter[0] += 1
paste_dir = _hermes_home / "pastes"
paste_dir.mkdir(parents=True, exist_ok=True)
@ -13521,8 +13524,11 @@ class HermesCLI:
newlines_added = line_count - _prev_newline_count[0]
_prev_newline_count[0] = line_count
is_paste = chars_added > 1 or newlines_added >= 4
threshold = self.config.get("paste_collapse_threshold_fallback", 0)
if threshold > 0 and line_count >= threshold and is_paste and not text.startswith('/'):
threshold = self.config.get("paste_collapse_threshold_fallback", 5)
char_threshold = self.config.get("paste_collapse_char_threshold", 2000)
lines_hit = threshold > 0 and line_count >= threshold
chars_hit = char_threshold > 0 and len(text) >= char_threshold
if (lines_hit or chars_hit) and is_paste and not text.startswith('/'):
_paste_counter[0] += 1
paste_dir = _hermes_home / "pastes"
paste_dir.mkdir(parents=True, exist_ok=True)