Mercurial > hg
view contrib/editmergeps.ps1 @ 50400:95acba2c29f6
encoding: avoid quadratic time complexity when json-encoding non-UTF8 strings
Apparently the code uses "+=" with a bytes object, which is linear-time, so the
whole encoding is quadratic-time. This patch makes us use a bytearray object,
instead, which has a(n amortized-)constant-time append operation.
The encoding is still not particularly fast, but at least a 10MB file
takes tens of seconds, not many hours to encode.
author | Arseniy Alekseyev <aalekseyev@janestreet.com> |
---|---|
date | Mon, 06 Mar 2023 11:27:57 +0000 |
parents | 92bcaef3420b |
children |
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# A simple script for opening merge conflicts in editor # A loose translation of contrib/editmerge to powershell # Please make sure that both editmergeps.bat and editmerge.ps1 are available # via %PATH% and use the following Mercurial settings to enable it # # [ui] # editmergeps # editmergeps.args=$output # editmergeps.check=changed # editmergeps.premerge=keep $file=$args[0] function Get-Lines { Select-String "^<<<<<<" $file | % {"$($_.LineNumber)"} } $ed = $Env:HGEDITOR; if ($ed -eq $nil) { $ed = $Env:VISUAL; } if ($ed -eq $nil) { $ed = $Env:EDITOR; } if ($ed -eq $nil) { $ed = $(hg showconfig ui.editor); } if ($ed -eq $nil) { Write-Error "merge failed - unable to find editor" exit 1 } if (($ed -eq "vim") -or ($ed -eq "emacs") -or ` ($ed -eq "nano") -or ($ed -eq "notepad++")) { $lines = Get-Lines $firstline = if ($lines.Length -gt 0) { $lines[0] } else { $nil } $previousline = $nil; # open the editor to the first conflict until there are no more # or the user stops editing the file while (($firstline -ne $nil) -and ($firstline -ne $previousline)) { if ($ed -eq "notepad++") { $linearg = "-n$firstline" } else { $linearg = "+$firstline" } Start-Process -Wait -NoNewWindow $ed $linearg,$file $previousline = $firstline $lines = Get-Lines $firstline = if ($lines.Length -gt 0) { $lines[0] } else { $nil } } } else { & "$ed" $file } $conflicts=Get-Lines if ($conflicts.Length -ne 0) { Write-Output "merge failed - resolve the conflicts (line $conflicts) then use 'hg resolve --mark'" exit 1 } exit 0