From 35a6d589a6f00240bd15777c2bbdaec1888ea9be Mon Sep 17 00:00:00 2001 From: Norbert Preining Date: Wed, 30 May 2018 01:33:07 +0000 Subject: add docs for TEXLIVE_DOWNLOADER, _COMPRESSOR, and selection order git-svn-id: svn://tug.org/texlive/trunk@47874 c570f23f-e606-0410-a88d-b1316a301751 --- Master/texmf-dist/scripts/texlive/tlmgr.pl | 120 +++++++++++++++++++++++++++++ 1 file changed, 120 insertions(+) (limited to 'Master/texmf-dist') diff --git a/Master/texmf-dist/scripts/texlive/tlmgr.pl b/Master/texmf-dist/scripts/texlive/tlmgr.pl index d25d9da034b..2160de025e4 100755 --- a/Master/texmf-dist/scripts/texlive/tlmgr.pl +++ b/Master/texmf-dist/scripts/texlive/tlmgr.pl @@ -7471,6 +7471,8 @@ L action). For backward compatibility and convenience, C<--location> and C<--repo> are accepted as aliases for this option. +See L for details on the supported schemata. + =item B<--gui> [I] C has a graphical interface as well as the command line @@ -9532,6 +9534,124 @@ If a value is not saved in the database the string C<(not set)> is shown. If you are developing a program that uses this output, and find that changes would be helpful, do not hesitate to write the mailing list. +=head1 SUPPORTED URL SCHEMATA + +The following URL schemata are supported + +=over 4 + +=item C + +Standard schema, is supported without any restrictions. If the (default) +LWP method is used, this schema supports persistent connections. + +=item C + +If the (default) LWP method is used, this schema supports persistent connections. + +=item C + +If the (default) LWP method is used, this schema supports persistent connections. +Some versions of C do not support this schema. Furthermore, even if +C supports https, it might check the certificate. C generally +supports https. + +=item C + +=item C + +=item C + +These schemata use C to transfer files. The use of an C +is highly recommended. + +=back + + +=head1 ENVIRONMENT VARIABLES + +For ease in scripting and debugging, C will look for the +following environment variables. They are not of interest for normal +user installations. + +=over 4 + +=item C + +This option allows selecting a different compressor program for +backups and intermediate rollback containers. The order of selection is: + +=over 8 + +=item 1. + +If the environment variable C is +defined, use it; abort if it doesn't work. Possible values: +C, C, C. + + +=item 2. + +If lz4 is available (either from the system or TL) and working, use that. + +=item 3. + +If gzip is available (from the system) and working, use that. + +=item 4. + +If xz is available (either from the system or TL) and working, use that. + +=back + +lz4 and gzip are much faster in creating tlmgr's local backups. +The unconditional use of xz for the tlnet containers is unaffected, +to minimize download sizes. + +=item C + +=item C + +=item C + +These options allow selecting different download programs then the ones +automatically selected by the installer. The order of selection is: + +=over 8 + +=item 1. + +If the environment variable C is +defined, use it; abort if the specified program doesn't work. +Possible values: C, C. + +=item 2. + +If the environment variable C is +defined (can be any value), use it together with +C; abort if it doesn't work. + +=item 3. + +If LWP is available and working, use that (by far the most +efficient method, as it supports persistent downloads). + +=item 4. + +If curl is available (from the system) and working, use that. + +=item 5. + +If wget is available (either from the system or TL) and working, use that. + +=back + +TL still provides C binaries for some platforms, so +some download method should always be available. + +=back + + =head1 AUTHORS AND COPYRIGHT This script and its documentation were written for the TeX Live -- cgit v1.2.3