Applied second patch by ccorn

* Use rsync --link-dest to speed up updates if a previous package version has been installed. Thus, passing e.g. -I texlive-most-doc-PREVIOUSVERSION-1-any.pkg.tar.xz to makechrootpkg or extra-x86_64-build -- shortens rsync transfers by a factor of roughly 100.

* I have also noticed that there are man and info subdirs, but moving those to standard locations outside the texmf-dist tree would cause conflicts with other packages, so I have chosen to simply --exclude them.

1 files changed, 28 insertions, 5 deletions

diff --git a/PKGBUILD b/PKGBUILD
index d5c3704aee64..d2285e244e29 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -12,17 +12,40 @@ license=('unknown')
 optdepends=('texlive-core: texdoc, mktexlsr hook, and many packages documented here')
 makedepends=('rsync')
 conflicts=(texlive-tlpdb)
-options=('!strip'  '!purge')
+options=('!strip' '!purge')
 
 pkgver() {
   date -I | tr -d '-'
 }
 
 build() {
-  mkdir -p "$srcdir/usr/share/texmf-dist"
-  mkdir -p "$srcdir/usr/share/tlpkg"
-  rsync -av --no-o --no-g --chmod=D755,F644 rsync://tug.org/texlive/Contents/live/texmf-dist/doc "$srcdir/usr/share/texmf-dist/"
-  rsync -av --no-o --no-g --chmod=D755,F644 rsync://tug.org/texlive/Contents/live/tlpkg/texlive.tlpdb "$srcdir/usr/share/tlpkg/"
+  _texmfdoc=/usr/share/texmf-dist/doc
+  _olddoc=""
+  if test -d "$_texmfdoc"; then
+    _olddoc="--link-dest=$_texmfdoc"
+  else
+    cat >&2 <<EOT
+******************************************************************************
+Directory $_texmfdoc not found.
+This means that rsync'ing the TeXLive documentation tree will download
+several gigabytes of documentation.
+This could be made much more efficient by having a previous version of
+package $pkgname installed.
+******************************************************************************
+EOT
+  fi
+  mkdir -p "$srcdir$_texmfdoc"
+  # Excluding texmf-dist/doc/{man,info} because their contents are mostly
+  # provided by other packages in standard locations outside texmf-dist
+  rsync -av --no-o --no-g --chmod=D755,F644 $_olddoc --del --delete-excluded --exclude=/man --exclude=/info rsync://tug.org/texlive/Contents/live/texmf-dist/doc/ "$srcdir$_texmfdoc/"
+
+  _tlpkg=/usr/share/tlpkg
+  _oldtlpkg=""
+  if test -d "$_tlpkg"; then
+    _oldtlpkg="--link-dest=$_tlpkg"
+  fi
+  mkdir -p "$srcdir$_tlpkg"
+  rsync -av --no-o --no-g --chmod=D755,F644 $_oldtlpkg --del rsync://tug.org/texlive/Contents/live/tlpkg/texlive.tlpdb "$srcdir$_tlpkg/texlive.tlpdb"
 }
 
 package() {