(TEXLIVE_INSTALL_NO_CONTEXT_CACHE): if envvar is

set, don't run mtxrun --generate.
Briefly document envvars.


git-svn-id: svn://tug.org/texlive/trunk@22941 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 41 insertions, 5 deletions

diff --git a/Master/install-tl b/Master/install-tl
index 2b59c1b2331..f416c35be12 100755
--- a/Master/install-tl
+++ b/Master/install-tl
@@ -855,7 +855,8 @@ operations might be disturbed.\n\n";
   system("mktexlsr", $TEXMFSYSVAR, $TEXMFSYSCONFIG);
 
   # luatex/context
-  if (exists($install{"context"}) && $install{"context"} == 1) {
+  if (exists($install{"context"}) && $install{"context"} == 1
+      && !exists $ENV{"TEXLIVE_INSTALL_NO_CONTEXT_CACHE"}) {
     info("setting up ConTeXt MkIV cache with mtxrun --generate ...");
     system('mtxrun', '--generate');
     info("done\n");
@@ -1088,8 +1089,8 @@ sub set_platforms_supported {
 #   TEXLIVE_INSTALL_TEXMFHOME      '$HOME/texmf'
 
 sub set_texlive_default_dirs {
-  my $tex_prefix = $vars{'in_place'} ? abs_path($::installerdir) :
-    getenv('TEXLIVE_INSTALL_PREFIX');
+  my $tex_prefix = $vars{'in_place'} ? abs_path($::installerdir)
+                                     : getenv('TEXLIVE_INSTALL_PREFIX');
   if (win32) {
     $tex_prefix ||= getenv('SystemDrive') . '/texlive';
     # we use SystemDrive because ProgramFiles requires admin rights
@@ -2010,8 +2011,9 @@ all of TeX Live. This is the default on Windows systems.
 
 =item C<perltk>
 
-The all-in-one GUI installer.
-It can also be selected by giving the C<-gui> option without any I<module>.
+The expert GUI installer providing access to more options.  It can also
+be selected by giving the C<-gui> option without any I<module>, or, on
+Windows by running C<install-tl-advanced.bat>.
 
 =back
 
@@ -2218,6 +2220,40 @@ If C<-v> has been given the revisions of the used modules are reported, too.
 As usual, all options can be specified with either C<-> or C<-->, and
 arguments can be separated from their options by either a space or C<=>.
 
+
+=head1 ENVIRONMENT VARIABLES
+
+For ease in scripting and debugging, C<install-tl> will look for the
+following environment variables.  They are not of interest in normal
+user installations.
+
+=item C<TEXLIVE_INSTALL_ENV_NOCHECK>
+
+Omit the check for environment variables containing the string C<tex>.
+People developing TeX-related software are likely to have many such
+variables.
+
+=item C<TEXLIVE_INSTALL_NO_CONTEXT_CACHE>
+
+Omit creating the ConTeXt cache.  This is useful for redistributors.
+
+=item C<TEXLIVE_INSTALL_PREFIX>
+
+=item C<TEXLIVE_INSTALL_TEXMFCONFIG>
+
+=item C<TEXLIVE_INSTALL_TEXMFHOME>
+
+=item C<TEXLIVE_INSTALL_TEXMFLOCAL>
+
+=item C<TEXLIVE_INSTALL_TEXMFSYSCONFIG>
+
+=item C<TEXLIVE_INSTALL_TEXMFSYSVAR>
+
+=item C<TEXLIVE_INSTALL_TEXMFVAR>
+
+Specify the respective directories.
+
+
 =head1 AUTHORS AND COPYRIGHT
 
 This script and its documentation were written for the TeX Live