vitya
d089df7e9f
`(& git log -1 --format='%b')` in PowerShell collapses multi-line subprocess
output into string[]. The threshold check used `$body.Length` which on a
string[] returns the line count, not char count — so the body>200 condition
was effectively comparing "more than 200 lines", which is much harder to
meet. Files-count saves it in practice for big commits, but small-file
big-message commits were under-detected.
Fix: join the array back into a single string with `-join "`n"` before
measuring length. Verified via stdin-pipe smoke against current HEAD:
body chars now report 1255 (vs 29 before — the line count).
POSIX `.sh` variant unaffected — `$()` collapses output and `${#var}` is
char count.
Bump 0.3.0 → 0.3.1 PATCH (bugfix, no behavior contract change).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
73 lines
2.8 KiB
PowerShell
73 lines
2.8 KiB
PowerShell
#!/usr/bin/env pwsh
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# session-handoff PostToolUse hook (PowerShell).
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#
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# Reads PostToolUse JSON from stdin, detects whether the just-completed
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# Bash tool call was a substantive `git commit`, and on hit emits JSON to
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# stdout with `additionalContext` so Claude Code surfaces a system reminder
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# in the next agent iteration ("substantive commit — consider session-handoff
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# write-mode").
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#
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# Substantive heuristic (mirrors session-handoff SKILL.md):
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# prefix NOT in (meta:|docs:|style:|chore:|fix typo) AND
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# (body > 200 chars OR files > 3)
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#
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# Silent skip on: malformed JSON, no command, --amend, failed commit,
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# non-git cwd, trivial prefix, below thresholds. Never blocks the tool call
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# (PostToolUse cannot, by design).
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$ErrorActionPreference = 'Stop'
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# Read stdin
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try {
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$raw = [Console]::In.ReadToEnd()
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if ([string]::IsNullOrWhiteSpace($raw)) { exit 0 }
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$hook = $raw | ConvertFrom-Json -ErrorAction Stop
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} catch {
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exit 0
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}
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# Only Bash tool, only git commit (not --amend)
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$cmd = $hook.tool_input.command
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if (-not $cmd) { exit 0 }
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if ($cmd -notmatch '(?<![\w-])git\s+commit(?![\w-])') { exit 0 }
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if ($cmd -match '(?<![\w-])git\s+commit\b.*--amend') { exit 0 }
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# Only on successful commit
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if ($null -ne $hook.tool_response.exit_code -and $hook.tool_response.exit_code -ne 0) { exit 0 }
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# Resolve cwd; require a git work-tree
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$cwd = $hook.cwd
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if (-not $cwd) { $cwd = (Get-Location).Path }
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$inside = & git -C $cwd rev-parse --is-inside-work-tree 2>$null
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if ($inside -ne 'true') { exit 0 }
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# Parse last commit
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$subject = (& git -C $cwd log -1 --format='%s').Trim()
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# PowerShell collapses multi-line subprocess output into string[] — join back so
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# .Length below is char count, not line count.
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$body = ((& git -C $cwd log -1 --format='%b') -join "`n")
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$files = ((& git -C $cwd diff-tree --no-commit-id --name-only -r HEAD) | Measure-Object).Count
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# Trivial-prefix check (Conventional Commits prefix before optional scope + colon)
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$prefix = $subject -replace '^([a-z]+)(\([^)]+\))?:.*$','$1'
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$trivial = @('meta','docs','style','chore')
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if ($trivial -contains $prefix) { exit 0 }
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if ($subject -match 'fix\s+typo') { exit 0 }
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# Threshold check (chars for body, count for files)
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$bodyLen = if ($body) { $body.Length } else { 0 }
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if ($bodyLen -le 200 -and $files -le 3) { exit 0 }
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# Substantive — emit JSON
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$msg = "Substantive commit detected on " + $cwd + ": ``" + $subject + "`` (" + $files + " files changed, body " + $bodyLen + " chars). Consider invoking session-handoff write-mode to update .tasks/NEXT_SESSION.md."
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@{
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hookSpecificOutput = @{
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hookEventName = 'PostToolUse'
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additionalContext = $msg
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}
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systemMessage = 'session-handoff: substantive commit detected'
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suppressOutput = $false
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} | ConvertTo-Json -Compress -Depth 5 | Write-Output
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