Jerome,
This PowerShell script generates the optimization that I want as an
end-user on the 'freedos/files/repositories/latest' tree. Only 7Z.exe
is used because 7-Zip 19.00 and AdvZip 2.1 generate outputs that are
nearly identical for a full repack.
# FDREPACK.PS1: FreeDOS repository repacking script.
$ZIPS = Get-ChildItem -Recurse -File -Filter *.ZIP
ForEach ($ZIP in $ZIPS) {
$TMPDIR = Join-Path $ENV:TMP -ChildPath $('FDREPACK_' +
$ZIP.BaseName + '_' + $(New-GUID))
$TMPDIR = New-Item -ItemType Directory -Path $TMPDIR
Push-Location $TMPDIR
7Z x $ZIP.FullName
If (Test-Path -Path 'SOURCE' -PathType Container) {
Push-Location 'SOURCE'
ForEach ($II in @(Get-ChildItem -File -Filter '*.7Z';
Get-ChildItem -File -Filter '*.ZIP')) {
NewItem -ItemType Directory -Path $II.BaseName
Push-Location -Path $II.BaseName
7Z x $II.FullName
Pop-Location
Remove-Item $II.FullName
}
ForEach ($JJ in Get-ChildItem -Directory) {
Push-Location $JJ
If (Test-Path -Path 'SOURCES.7Z' -PathType Leaf) {
7z x 'SOURCES.7Z'
Remove-Item 'SOURCES.7Z'
}
If (Test-Path -Path 'SOURCES.ZIP' -PathType Leaf) {
7z x 'SOURCES.ZIP'
Remove-Item 'SOURCES.ZIP'
}
ATTRIB -A /S
# This makes upstream sources solid in the distro package.
7Z a -tzip -mm=copy -mtc=off -stl $('..\' + $JJ + '.ZIP')
Pop-Location
Remove-Item -Recurse $JJ
}
Pop-Location # SOURCE
}
ATTRIB -A /S
# These are the best zip format 2.0 parameters at the pkzip-2.0 level.
7Z a -tzip -mm=deflate -mfb=258 -mpass=15 -mmt=on -mtc=off -stl
$($ZIP.FullName + '.repack')
Move-Item -Force $($ZIP.FullName + '.repack') ($ZIP.FullName)
Pop-Location # $TMPDIR
Remove-Item -Force -Recurse $TMPDIR
}
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