setup takes a long time

[Jon Turney]

On 31/01/2018 06:18, Fergus Daly wrote:
> The setup program does seem to take a long time, even when it just
> means "update" and even when there's nothing to update. Here's what
> happens in unattended mode:
> 
[...]

Try this with 'ts' from moreutils, e.g:

> $ ./setup-2.884.x86_64.exe --local-install '\\necker\download\cygwin-packages' --no-admin --upgrade-also --quiet-mode --mirror-mode --no-shortcuts | ts -i
> 00:00:00 Starting cygwin install, version 2.884
> 00:00:00 User has NO backup/restore rights
> 00:00:00 Current Directory: \\necker\download\cygwin-packages
> 00:00:00 Could not open Service control manager
> 00:00:00 root: C:\cygwin64 user
> 00:00:00 Selected local directory: \\necker\download\cygwin-packages
> 00:00:13 running: C:\cygwin64\bin\dash.exe "/etc/postinstall/0p_000_autorebase.dash"
> 00:01:40 running: C:\cygwin64\bin\dash.exe "/etc/postinstall/0p_texlive_prep.dash"
> 00:00:00 running: C:\cygwin64\bin\dash.exe "/etc/postinstall/0p_update-info-dir.dash"
> 00:00:03 running: C:\cygwin64\bin\bash.exe --norc --noprofile "/etc/postinstall/zp_adwaita-icon-theme.sh"
> 00:00:00 running: C:\cygwin64\bin\bash.exe --norc --noprofile "/etc/postinstall/zp_desktop-file-utils.sh"
> 00:00:00 running: C:\cygwin64\bin\bash.exe --norc --noprofile "/etc/postinstall/zp_fontconfig_cache_1.sh"
> 00:00:14 running: C:\cygwin64\bin\bash.exe --norc --noprofile "/etc/postinstall/zp_glib2.0.sh"
> 00:00:00 running: C:\cygwin64\bin\bash.exe --norc --noprofile "/etc/postinstall/zp_gnome-themes-standard.sh"
> 00:00:00 running: C:\cygwin64\bin\bash.exe --norc --noprofile "/etc/postinstall/zp_gnome-themes.sh"
> 00:00:00 running: C:\cygwin64\bin\bash.exe --norc --noprofile "/etc/postinstall/zp_hicolor-icon-theme.sh"
> 00:00:00 running: C:\cygwin64\bin\bash.exe --norc --noprofile "/etc/postinstall/zp_man-db.sh"
> 00:00:02 running: C:\cygwin64\bin\bash.exe --norc --noprofile "/etc/postinstall/zp_mate-icon-theme.sh"
> 00:00:00 running: C:\cygwin64\bin\bash.exe --norc --noprofile "/etc/postinstall/zp_mate-themes.sh"
> 00:00:00 running: C:\cygwin64\bin\bash.exe --norc --noprofile "/etc/postinstall/zp_shared-mime-info.sh"
> 00:00:00 running: C:\cygwin64\bin\dash.exe "/etc/postinstall/zp_texlive_finish.dash"
> 00:00:02 Ending cygwin install
> I can kind of see the point of autorebase and update-info-dir, but why
> revisit texlive every time, and why all the zp stuff, every time? Why

These tasks are supposed to identify when they have no work to do, and 
do nothing quickly.  It seems that is not always the case.

> does setup explore McShield and McAfee? Incidentally note the switch
> -m. Without it, checking sha1sum's I guess provides some kind of
> protection, but it's incredibly time-consuming and seems quite
> unnecessarily to cover much more than the files downloaded, even the
> entire resource? In the presumably very rare event of a broken
> download, could the update not more simply just abort?

--local-install could indeed use some improvement.

Note that the scan is also used to filter the list of packages, so 
(without --mirror-mode) we don't offer for installation packages we 
don't have the archive for...

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