# Distributed under the terms of the GNU General Public License v2

EAPI=6
VIM_VERSION="8.0"
PYTHON_COMPAT=( python{2_7,3_4,3_5,3_6} )
PYTHON_REQ_USE=threads
inherit eutils vim-doc flag-o-matic fdo-mime gnome2-utils versionator bash-completion-r1 prefix python-r1

if [[ ${PV} == 9999* ]] ; then
     inherit git-r3
     EGIT_REPO_URI="https://github.com/vim/vim.git"
     EGIT_CHECKOUT_DIR=${WORKDIR}/vim-${PV}
else
     SRC_URI="https://github.com/vim/vim/archive/v${PV}.tar.gz -> vim-${PV}.tar.gz"
     KEYWORDS="*"
fi

DESCRIPTION="GUI version of the Vim text editor"
HOMEPAGE="http://www.vim.org/ https://github.com/vim/vim"

SLOT="0"
LICENSE="vim"
IUSE="acl aqua cscope debug gnome gtk gtk3 lua luajit motif neXt netbeans nls perl python racket ruby selinux session tcl"
REQUIRED_USE="
     luajit? ( lua )
     python? (
          || ( $(python_gen_useflags '*') )
          ?? ( $(python_gen_useflags 'python2*') )
          ?? ( $(python_gen_useflags 'python3*') )
     )
"

RDEPEND="
     ~app-editors/vim-core-${PV}
     >=app-eselect/eselect-vi-1.1
     >=sys-libs/ncurses-5.2-r2:0=
     x11-libs/libICE
     x11-libs/libSM
     x11-libs/libXext
     x11-libs/libXt
     acl? ( kernel_linux? ( sys-apps/acl ) )
     !aqua? (
          gtk3? (
               x11-libs/gtk+:3
               x11-libs/libXft
          )
          !gtk3? (
               gtk? (
                    >=x11-libs/gtk+-2.6:2
                    x11-libs/libXft
                    gnome? ( >=gnome-base/libgnomeui-2.6 )
               )
               !gtk? (
                    motif? ( >=x11-libs/motif-2.3:0 )
                    !motif? (
                         neXt? ( x11-libs/neXtaw )
                         !neXt? ( x11-libs/libXaw )
                    )
               )
          )
     )
     cscope? ( dev-util/cscope )
     lua? (
          luajit? ( dev-lang/luajit:2= )
          !luajit? ( dev-lang/lua:0[deprecated] )
     )
     nls? ( virtual/libintl )
     perl? ( dev-lang/perl:= )
     python? ( ${PYTHON_DEPS} )
     racket? ( dev-scheme/racket )
     ruby? ( || ( dev-lang/ruby:2.3 dev-lang/ruby:2.2 dev-lang/ruby:2.1 dev-lang/ruby:2.0 ) )
     selinux? ( sys-libs/libselinux )
     session? ( x11-libs/libSM )
     tcl? ( dev-lang/tcl:0= )
"
DEPEND="${RDEPEND}
     dev-util/ctags
     sys-devel/autoconf
     virtual/pkgconfig
     nls? ( sys-devel/gettext )
"

S=${WORKDIR}/vim-${PV}

PATCHES=( "$FILESDIR/001_all_vim-6.3-xorg-75816.patch"
"$FILESDIR/002_all_vim-7.3-apache-83565.patch"
"$FILESDIR/003_all_vim-7.0-automake-substitutions-93378.patch"
"$FILESDIR/004_all_vim-7.0-grub-splash-96155.patch"
"$FILESDIR/005_all_vim_7.1-ada-default-compiler.patch"
"$FILESDIR/006-vim-8.0-crosscompile.patch" )

pkg_setup() {
     # people with broken alphabets run into trouble. bug 82186.
     unset LANG LC_ALL
     export LC_COLLATE="C"

     # Gnome sandbox silliness. bug #114475.
     mkdir -p "${T}"/home
     export HOME="${T}"/home
}

src_prepare() {
    epatch "${FILESDIR}/001_all_vim-6.3-xorg-75816.patch"
    epatch "${FILESDIR}/002_all_vim-7.3-apache-83565.patch"
    epatch "${FILESDIR}/003_all_vim-7.0-automake-substitutions-93378.patch"
    epatch "${FILESDIR}/004_all_vim-7.0-grub-splash-96155.patch"
    epatch "${FILESDIR}/005_all_vim_7.1-ada-default-compiler.patch"
    epatch "${FILESDIR}/006-vim-8.0-crosscompile.patch"    

     # Fixup a script to use awk instead of nawk
     sed -i '1s|.*|#!'"${EPREFIX}"'/usr/bin/awk -f|' "${S}"/runtime/tools/mve.awk \
          || die "mve.awk sed failed"

     # Read vimrc and gvimrc from /etc/vim
     echo '#define SYS_VIMRC_FILE "'${EPREFIX}'/etc/vim/vimrc"' >> "${S}"/src/feature.h
     echo '#define SYS_GVIMRC_FILE "'${EPREFIX}'/etc/vim/gvimrc"' >> "${S}"/src/feature.h

     # Use exuberant ctags which installs as /usr/bin/exuberant-ctags.
     # Hopefully this pattern won't break for a while at least.
     # This fixes bug 29398 (27 Sep 2003 agriffis)
     sed -i 's/\<ctags\("\| [-*.]\)/exuberant-&/g' \
          "${S}"/runtime/doc/syntax.txt \
          "${S}"/runtime/doc/tagsrch.txt \
          "${S}"/runtime/doc/usr_29.txt \
          "${S}"/runtime/menu.vim \
          "${S}"/src/configure.ac || die 'sed failed'

     # Don't be fooled by /usr/include/libc.h.  When found, vim thinks
     # this is NeXT, but it's actually just a file in dev-libs/9libs
     # This fixes bug 43885 (20 Mar 2004 agriffis)
     sed -i 's/ libc\.h / /' "${S}"/src/configure.ac || die 'sed failed'

     # gcc on sparc32 has this, uhm, interesting problem with detecting EOF
     # correctly. To avoid some really entertaining error messages about stuff
     # which isn't even in the source file being invalid, we'll do some trickery
     # to make the error never occur. bug 66162 (02 October 2004 ciaranm)
     find "${S}" -name '*.c' | while read c ; do echo >> "$c" ; done

     # Try to avoid sandbox problems. Bug #114475.
     if [[ -d "${S}"/src/po ]] ; then
          sed -i '/-S check.vim/s,..VIM.,ln -s $(VIM) testvim \; ./testvim -X,' \
               "${S}"/src/po/Makefile
     fi

     if version_is_at_least 7.3.122 ; then
          cp "${S}"/src/config.mk.dist "${S}"/src/auto/config.mk
     fi

     # Bug #378107 - Build properly with >=perl-core/ExtUtils-ParseXS-3.20.0
     if version_is_at_least 7.3 ; then
          sed -i "s:\\\$(PERLLIB)/ExtUtils/xsubpp:${EPREFIX}/usr/bin/xsubpp:"     \
               "${S}"/src/Makefile || die 'sed for ExtUtils-ParseXS failed'
     fi

     eapply_user
}

src_configure() {
     local myconf=()

     # Fix bug 37354: Disallow -funroll-all-loops on amd64
     # Bug 57859 suggests that we want to do this for all archs
     filter-flags -funroll-all-loops

     # Fix bug 76331: -O3 causes problems, use -O2 instead. We'll do this for
     # everyone since previous flag filtering bugs have turned out to affect
     # multiple archs...
     replace-flags -O3 -O2

     # Fix bug 18245: Prevent "make" from the following chain:
     # (1) Notice configure.ac is newer than auto/configure
     # (2) Rebuild auto/configure
     # (3) Notice auto/configure is newer than auto/config.mk
     # (4) Run ./configure (with wrong args) to remake auto/config.mk
     sed -i 's# auto/config\.mk:#:#' src/Makefile || die "Makefile sed failed"
     rm -f src/auto/configure
     emake -j1 -C src autoconf

     # This should fix a sandbox violation (see bug 24447). The hvc
     # things are for ppc64, see bug 86433.
     for file in /dev/pty/s* /dev/console /dev/hvc/* /dev/hvc* ; do
          [[ -e ${file} ]] && addwrite $file
     done

     use debug && append-flags "-DDEBUG"

     myconf=(
          --with-features=huge
          --disable-gpm
          --enable-multibyte
          $(use_enable acl)
          $(use_enable cscope)
          $(use_enable lua luainterp)
          $(use_with luajit)
          $(use_enable netbeans)
          $(use_enable nls)
          $(use_enable perl perlinterp)
          $(use_enable racket mzschemeinterp)
          $(use_enable ruby rubyinterp)
          $(use_enable selinux)
          $(use_enable session xsmp)
          $(use_enable tcl tclinterp)
     )

     if use python ; then
          py_add_interp() {
               local v

               [[ ${EPYTHON} == python3* ]] && v=3
               myconf+=(
                    --enable-python${v}interp
                    vi_cv_path_python${v}="${PYTHON}"
               )
          }

          python_foreach_impl py_add_interp
     else
          myconf+=(
               --disable-pythoninterp
               --disable-python3interp
          )
     fi

     # --with-features=huge forces on cscope even if we --disable it. We need
     # to sed this out to avoid screwiness. (1 Sep 2004 ciaranm)
     if ! use cscope ; then
          sed -i '/# define FEAT_CSCOPE/d' src/feature.h || \
               die "couldn't disable cscope"
     fi

     # gvim's GUI preference order is as follows:
     # aqua                          CARBON (not tested)
     # -aqua gtk3                    GTK3
     # -aqua -gtk3 gnome             GNOME2
     # -aqua -gtk3 -gnome gtk        GTK2
     # -aqua -gtk -gtk3 motif        MOTIF
     # -aqua -gtk -gtk3 -motif neXt  NEXTAW
     # -aqua -gtk -gtk3 -motif -neXt ATHENA
     echo ; echo
     if use aqua ; then
          einfo "Building gvim with the Carbon GUI"
          myconf+=(
               --enable-darwin
               --enable-gui=carbon
          )
     elif use gtk3 ; then
          myconf+=( --enable-gtk3-check )
          einfo "Building gvim with the gtk+-3 GUI"
          myconf+=( --enable-gui=gtk3 )
     elif use gtk ; then
          myconf+=( --enable-gtk2-check )
          if use gnome ; then
               einfo "Building gvim with the Gnome 2 GUI"
               myconf+=( --enable-gui=gnome2 )
          else
               einfo "Building gvim with the gtk+-2 GUI"
               myconf+=( --enable-gui=gtk2 )
          fi
     elif use motif ; then
          einfo "Building gvim with the MOTIF GUI"
          myconf+=( --enable-gui=motif )
     elif use neXt ; then
          einfo "Building gvim with the neXtaw GUI"
          myconf+=( --enable-gui=nextaw )
     else
          einfo "Building gvim with the Athena GUI"
          myconf+=( --enable-gui=athena )
     fi
     echo ; echo

     # let package manager strip binaries
     export ac_cv_prog_STRIP="$(type -P true ) faking strip"

     # keep prefix env contained within the EPREFIX
     use prefix && myconf+=( --without-local-dir )

     if [[ ${CHOST} == *-interix* ]]; then
          # avoid finding of this function, to avoid having to patch either
          # configure or the source, which would be much more hackish.
          # after all vim does it right, only interix is badly broken (again)
          export ac_cv_func_sigaction=no
     fi

     econf \
          --with-modified-by=Gentoo-${PVR} \
          --with-vim-name=gvim \
          --with-x \
          "${myconf[@]}"
}

src_compile() {
     # The following allows emake to be used
     emake -j1 -C src auto/osdef.h objects

     emake
}

src_test() {
     echo
     einfo "Starting vim tests. Several error messages will be shown"
     einfo "while the tests run. This is normal behaviour and does not"
     einfo "indicate a fault."
     echo
     ewarn "If the tests fail, your terminal may be left in a strange"
     ewarn "state. Usually, running 'reset' will fix this."
     echo

     # Don't let vim talk to X
     unset DISPLAY

     # Make gvim not try to connect to X. See :help gui-x11-start in vim for how
     # this evil trickery works.
     ln -s "${S}"/src/gvim "${S}"/src/testvim || die

     # Make sure our VIMPROG is used.
     sed -i 's:\.\./vim:../testvim:' src/testdir/test49.vim || die

     # Don't do additional GUI tests.
     emake -j1 VIMPROG=../testvim -C src/testdir nongui
}

# Make convenience symlinks, hopefully without stepping on toes.  Some
# of these links are "owned" by the vim ebuild when it is installed,
# but they might be good for gvim as well (see bug 45828)
update_vim_symlinks() {
     local f syms
     syms="vimdiff rvim rview"
     einfo "Calling eselect vi update..."
     # Call this with --if-unset to respect user's choice (bug 187449)
     eselect vi update --if-unset

     # Make or remove convenience symlink, vim -> gvim
     if [[ -f "${EROOT}"/usr/bin/gvim ]]; then
          ln -s gvim "${EROOT}"/usr/bin/vim 2>/dev/null
     elif [[ -L "${EROOT}"/usr/bin/vim && ! -f "${EROOT}"/usr/bin/vim ]]; then
          rm "${EROOT}"/usr/bin/vim
     fi

     # Make or remove convenience symlinks to vim
     if [[ -f "${EROOT}"/usr/bin/vim ]]; then
          for f in ${syms}; do
               ln -s vim "${EROOT}"/usr/bin/${f} 2>/dev/null
          done
     else
          for f in ${syms}; do
               if [[ -L "${EROOT}"/usr/bin/${f} && ! -f "${EROOT}"/usr/bin/${f} ]]; then
                    rm -f "${EROOT}"/usr/bin/${f}
               fi
          done
     fi

     # This will still break if you merge then remove the vi package,
     # but there's only so much you can do, eh?  Unfortunately we don't
     # have triggers like are done in rpm-land.
}

src_install() {
     local vimfiles=/usr/share/vim/vim${VIM_VERSION/.}

     dobin src/gvim
     dosym gvim /usr/bin/gvimdiff
     dosym gvim /usr/bin/evim
     dosym gvim /usr/bin/eview
     dosym gvim /usr/bin/gview
     dosym gvim /usr/bin/rgvim
     dosym gvim /usr/bin/rgview

     emake -C src DESTDIR="${D}" DATADIR="${EPREFIX}"/usr/share install-icons

     dodir /usr/share/man/man1
     echo ".so vim.1" > "${ED}"/usr/share/man/man1/gvim.1
     echo ".so vim.1" > "${ED}"/usr/share/man/man1/gview.1
     echo ".so vimdiff.1" > "${ED}"/usr/share/man/man1/gvimdiff.1

     insinto /etc/vim
     newins "${FILESDIR}"/gvimrc-r1 gvimrc
     eprefixify "${ED}"/etc/vim/gvimrc

     doicon -s scalable "${FILESDIR}"/gvim.svg

     # bash completion script, bug #79018.
     newbashcomp "${FILESDIR}"/${PN}-completion ${PN}

     # don't install vim desktop file
     rm "${ED}"/usr/share/applications/vim.desktop || die "failed to remove vim.desktop"
}

pkg_postinst() {
     # Update documentation tags (from vim-doc.eclass)
     update_vim_helptags

     # Update fdo mime stuff, bug #78394
     fdo-mime_desktop_database_update

     # Update icon cache
     gnome2_icon_cache_update

     # Make convenience symlinks
     update_vim_symlinks
}

pkg_postrm() {
     # Update documentation tags (from vim-doc.eclass)
     update_vim_helptags

     # Update fdo mime stuff, bug #78394
     fdo-mime_desktop_database_update

     # Update icon cache
     gnome2_icon_cache_update

     # Make convenience symlinks
     update_vim_symlinks
}