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Handle Cursor co-author trailer format in commit hook #12

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Merged
BenjaminMichaelis merged 1 commit into from
May 16, 2026
Merged

Handle Cursor co-author trailer format in commit hook #12

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4 changes: 2 additions & 2 deletions git-hooks/commit-msg
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Original file line number Diff line number Diff line change
Expand Up @@ -19,10 +19,10 @@ MARKER_PATTERN='^[[:space:]]*(made-with|generated-by|suggested-by)[[:space:]]*:'
# 2. Co-authored-by lines where the author name starts with a known AI tool
# The trailing ([[:space:]]|<|$) ensures we match whole words (e.g. "Claude"
# but also "Claude Opus 4.6" while not matching a hypothetical "Claudette").
AI_NAMES_PATTERN='^[[:space:]]*co-authored?-by[[:space:]]*:[[:space:]]*(github[[:space:]]+copilot|copilot|claude|amazon[[:space:]]+q|amazon[[:space:]]+codewhisperer|codewhisperer|gemini|chatgpt|gpt-?[[:digit:]]+|codeium|tabnine|windsurf|opencode)([[:space:]]|<|$)'
AI_NAMES_PATTERN='^[[:space:]]*co-authored?-by[[:space:]]*:[[:space:]]*(github[[:space:]]+copilot|copilot|claude|amazon[[:space:]]+q|amazon[[:space:]]+codewhisperer|codewhisperer|gemini|chatgpt|gpt-?[[:digit:]]+|cursor|codeium|tabnine|windsurf|opencode)([[:space:]]|<|$)'

# 3. Co-authored-by lines whose email domain belongs to a known AI provider
AI_EMAIL_PATTERN='^[[:space:]]*co-authored?-by[[:space:]]*:.*<[^>]*@(anthropic\.com|cursor\.sh|codeium\.com|cognition\.ai)[^>]*>'
AI_EMAIL_PATTERN='^[[:space:]]*co-authored?-by[[:space:]]*:.*<?[^>[:space:]]*@(anthropic\.com|cursor\.sh|cursor\.com|codeium\.com|cognition\.ai)[^>[:space:]]*>?'

tmp=$(mktemp) || exit 1
trap 'rm -f "$tmp"' EXIT
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4 changes: 2 additions & 2 deletions git-hooks/commit-msg.ps1
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Expand Up @@ -30,10 +30,10 @@ function Remove-AITrailers {
# 2. Co-authored-by where the name starts with a known AI tool
# The trailing (\s|<|$) keeps whole-word matching so "Claude" still
# matches "Claude Opus 4.6" but won't silently drop "Claudette Smith".
$aiNamesPattern = '^\s*co-authored?-by\s*:\s*(github\s+copilot|copilot|claude|amazon\s+q|amazon\s+codewhisperer|codewhisperer|gemini|chatgpt|gpt-?\d+|codeium|tabnine|windsurf|opencode)(\s|<|$)'
$aiNamesPattern = '^\s*co-authored?-by\s*:\s*(github\s+copilot|copilot|claude|amazon\s+q|amazon\s+codewhisperer|codewhisperer|gemini|chatgpt|gpt-?\d+|cursor|codeium|tabnine|windsurf|opencode)(\s|<|$)'

# 3. Co-authored-by whose email domain belongs to a known AI provider
$aiEmailPattern = '^\s*co-authored?-by\s*:.*<[^>]*@(anthropic\.com|cursor\.sh|codeium\.com|cognition\.ai)[^>]*>'
$aiEmailPattern = '^\s*co-authored?-by\s*:.*<?[^>\s]*@(anthropic\.com|cursor\.sh|cursor\.com|codeium\.com|cognition\.ai)[^>\s]*>?'

$filtered = [System.Collections.Generic.List[string]]::new()
foreach ($line in $Lines) {
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13 changes: 13 additions & 0 deletions git-hooks/tests/commit-msg.Tests.ps1
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Expand Up @@ -183,6 +183,12 @@ Describe 'Remove-AITrailers' {
$result = Remove-AITrailers -Lines $lines
$result | Should -Not -Match 'cursor\.sh'
}

It 'removes Co-authored-by: Cursor cursoragent@cursor.com' {
$lines = @('Fix bug', '', 'Co-authored-by: Cursor cursoragent@cursor.com')
Comment on lines +187 to +188
$result = Remove-AITrailers -Lines $lines
$result | Should -Not -Match 'cursoragent@cursor\.com'
}
}

Context 'Codeium Co-authored-by is removed' {
Expand Down Expand Up @@ -418,6 +424,13 @@ Describe 'commit-msg bash hook (end-to-end)' -Skip:($IsWindows -or -not (Get-Com
$result | Should -Match 'Alice Smith'
}

It 'removes Cursor co-author without angle brackets' {
$content = "Fix bug`n`nCo-authored-by: Cursor cursoragent@cursor.com`n"
$result = Invoke-BashHook $content
$result | Should -Not -Match 'cursoragent@cursor\.com'
$result.Trim() | Should -Be 'Fix bug'
}

It 'removes AI and preserves human in mixed message' {
$content = "Fix bug`n`nCo-authored-by: Alice Smith <alice@example.com>`nCo-authored-by: GitHub Copilot <noreply@github.com>`n"
$result = Invoke-BashHook $content
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