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feat: strip Co-authored-by: Copilot Autofix powered by AI in commit-msg hook #13

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Merged
BenjaminMichaelis merged 1 commit into from
May 19, 2026
Merged

feat: strip Co-authored-by: Copilot Autofix powered by AI in commit-msg hook #13

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3 changes: 2 additions & 1 deletion git-hooks/commit-msg
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
# Made-with: Cursor
# Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
# Co-authored-by: GitHub Copilot <noreply@github.com>
# Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
# Co-authored-by: Amazon Q <q@amazon.com>
# Generated-by: GitHub Copilot

Expand All @@ -19,7 +20,7 @@ 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:]]|<|$) ensures we match whole words (e.g. "Claude"
# but also "Claude Opus 4.6" while not matching a hypothetical "Claudette").
AI_NAMES_PATTERN='^[[:space:]]*co-authored?-by[[:space:]]*:[[:space:]]*(github[[:space:]]+copilot|copilot|claude|amazon[[:space:]]+q|amazon[[:space:]]+codewhisperer|codewhisperer|gemini|chatgpt|gpt-?[[:digit:]]+|cursor|codeium|tabnine|windsurf|opencode)([[:space:]]|<|$)'
AI_NAMES_PATTERN='^[[:space:]]*co-authored?-by[[:space:]]*:[[:space:]]*(github[[:space:]]+copilot|copilot[[:space:]]+autofix|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:]]*:.*<?[^>[:space:]]*@(anthropic\.com|cursor\.sh|cursor\.com|codeium\.com|cognition\.ai)[^>[:space:]]*>?'
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3 changes: 2 additions & 1 deletion git-hooks/commit-msg.ps1
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
# Made-with: Cursor
# Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
# Co-authored-by: GitHub Copilot <noreply@github.com>
# Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
# Co-authored-by: Amazon Q <q@amazon.com>
# Generated-by: GitHub Copilot

Expand All @@ -30,7 +31,7 @@ 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".
$aiNamesPattern = '^\s*co-authored?-by\s*:\s*(github\s+copilot|copilot|claude|amazon\s+q|amazon\s+codewhisperer|codewhisperer|gemini|chatgpt|gpt-?\d+|cursor|codeium|tabnine|windsurf|opencode)(\s|<|$)'
$aiNamesPattern = '^\s*co-authored?-by\s*:\s*(github\s+copilot|copilot\s+autofix|copilot|claude|amazon\s+q|amazon\s+codewhisperer|codewhisperer|gemini|chatgpt|gpt-?\d+|cursor|codeium|tabnine|windsurf|opencode)(\s|<|$)'

# 3. Co-authored-by whose email domain belongs to a known AI provider
$aiEmailPattern = '^\s*co-authored?-by\s*:.*<?[^>\s]*@(anthropic\.com|cursor\.sh|cursor\.com|codeium\.com|cognition\.ai)[^>\s]*>?'
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14 changes: 14 additions & 0 deletions git-hooks/tests/commit-msg.Tests.ps1
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Expand Up @@ -119,6 +119,13 @@ Describe 'Remove-AITrailers' {
$result | Should -Not -Match 'Co-authored-by'
$result[0] | Should -Be 'Fix bug'
}

It 'removes Co-authored-by: Copilot Autofix powered by AI with GitHub noreply bot email' {
$lines = @('Fix bug', '', 'Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>')
$result = @(Remove-AITrailers -Lines $lines)
$result | Should -Not -Match 'Co-authored-by'
$result[0] | Should -Be 'Fix bug'
}
}

Context 'Claude / Anthropic Co-authored-by is removed' {
Expand Down Expand Up @@ -397,6 +404,13 @@ Describe 'commit-msg bash hook (end-to-end)' -Skip:($IsWindows -or -not (Get-Com
$result.Trim() | Should -Be 'Fix bug'
}

It 'removes Copilot Autofix trailer' {
$content = "Fix bug`n`nCo-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>`n"
$result = Invoke-BashHook $content
$result | Should -Not -Match 'Co-authored-by'
$result.Trim() | Should -Be 'Fix bug'
}

It 'removes Copilot trailer with GitHub noreply bot email' {
$content = "Fix bug`n`nCo-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>`n"
$result = Invoke-BashHook $content
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