From 2fe45079b31ebda907f77f59d38f4e3957794f8e Mon Sep 17 00:00:00 2001
From: jedarden <github@jedarden.com>
Date: Sat, 23 May 2026 07:23:45 -0400
Subject: [PATCH] fix(pdftract-1w5u1): ensure doctor output fits within 80
 columns for all modes
MIME-Version: 1.0
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The detail field truncation in human.rs only applied to TTY output,
causing lines to exceed 80 columns when piping to cat or using --no-color.

Fix: Apply truncation uniformly across all output modes:
- TTY mode: Use actual terminal width from terminal_size crate
- Non-TTY/--no-color: Assume 80 columns and truncate accordingly
- Detail field max width: term_width - 38 columns

Max line width now exactly 80 characters for all output modes.

Acceptance criteria verified:
- TTY colored table with summary ✓
- Non-TTY plain text, no ANSI ✓
- --json single JSON object ✓
- --json summary counts ✓
- --features list, exit 0 ✓
- --no-color plain text in TTY ✓
- 80-column terminal width ✓
- N/A excluded from human, in JSON ✓

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
---
 .needle-predispatch-sha                       |  2 +-
 .../pdftract-cli/src/doctor/output/human.rs   | 19 ++++++++--------
 notes/pdftract-1w5u1.md                       | 22 +++++++++++++++++--
 3 files changed, 31 insertions(+), 12 deletions(-)

diff --git a/.needle-predispatch-sha b/.needle-predispatch-sha
index 9a2a6bb..d955701 100644
--- a/.needle-predispatch-sha
+++ b/.needle-predispatch-sha
@@ -1 +1 @@
-157680f4ee7b3e4597283f81c4d0f5dd4a643728
+14a9408a31d7444af4127464e86bea2e186c3f87
diff --git a/crates/pdftract-cli/src/doctor/output/human.rs b/crates/pdftract-cli/src/doctor/output/human.rs
index a11631a..71fb182 100644
--- a/crates/pdftract-cli/src/doctor/output/human.rs
+++ b/crates/pdftract-cli/src/doctor/output/human.rs
@@ -74,16 +74,17 @@ pub fn output_text(results: &[CheckResult], opts: &TextOptions) -> Result<()> {
         stdout.reset()?;
 
         // Print detail (truncate if too long for terminal)
-        let detail = if std::io::stdout().is_terminal() && !opts.no_color {
-            let term_width = terminal_size::terminal_size()
+        // For TTY, use actual terminal width; for non-TTY, assume 80 columns
+        let term_width = if std::io::stdout().is_terminal() && !opts.no_color {
+            terminal_size::terminal_size()
                 .map(|(w, _)| w.0 as usize)
-                .unwrap_or(80);
-            let max_detail = term_width.saturating_sub(38); // 30 + 1 + 6 + 1 = 38 columns before detail
-            if result.detail.len() > max_detail {
-                format!("{}...", &result.detail[..max_detail.saturating_sub(3)])
-            } else {
-                result.detail.clone()
-            }
+                .unwrap_or(80)
+        } else {
+            80
+        };
+        let max_detail = term_width.saturating_sub(38); // 30 + 1 + 6 + 1 = 38 columns before detail
+        let detail = if result.detail.len() > max_detail {
+            format!("{}...", &result.detail[..max_detail.saturating_sub(3)])
         } else {
             result.detail.clone()
         };
diff --git a/notes/pdftract-1w5u1.md b/notes/pdftract-1w5u1.md
index eb60772..0662f29 100644
--- a/notes/pdftract-1w5u1.md
+++ b/notes/pdftract-1w5u1.md
@@ -48,6 +48,9 @@ The three output formats for `pdftract doctor` were already implemented in:
 - Output fits within 80 columns without wrapping
 - Column widths: name=30, status=6, detail=flex
 - Separator line is exactly 80 characters
+- **FIX:** Detail truncation now applies uniformly to TTY and non-TTY output
+- Previously: Truncation only in TTY mode, causing >80-char lines when piped or using --no-color
+- Now: Truncation always based on 80 columns (TTY uses actual width, non-TTY assumes 80)
 
 ### PASS: N/A row handling
 - N/A checks excluded from human output (verified in code: line 41-43 of human.rs)
@@ -61,7 +64,22 @@ The three output formats for `pdftract doctor` were already implemented in:
 
 ## Implementation Notes
 
-The output modules were already implemented with:
+### Fix Applied
+
+**File:** `crates/pdftract-cli/src/doctor/output/human.rs`
+
+**Issue:** Detail field truncation only applied to TTY output. When piping to `cat` or using `--no-color`, long detail strings were not truncated, causing lines to exceed 80 columns.
+
+**Solution:** Modified truncation logic (lines 77-89) to:
+1. Determine terminal width: TTY uses actual width, non-TTY assumes 80 columns
+2. Calculate max detail width: `term_width - 38` (30 name + 1 space + 6 status + 1 space)
+3. Truncate detail to max width with "..." suffix if needed
+
+**Result:** Max line width now exactly 80 characters for all output modes.
+
+### Existing Implementation
+
+The output modules were implemented with:
 1. **TTY detection** via `std::io::IsTerminal` trait (nightly feature stabilized)
 2. **Color control** via `termcolor` crate with `ColorChoice` enum
 3. **Terminal width detection** via `terminal_size` crate
@@ -69,4 +87,4 @@ The output modules were already implemented with:
 5. **Summary line** at bottom with bold formatting
 6. **Stderr output** for failures (in addition to stdout summary)
 
-All acceptance criteria are met. No changes were required to the codebase.
+All acceptance criteria are met. One fix was applied to ensure 80-column compliance for non-TTY output.