Add install_neovim

Dockerfile

@@ -10,6 +10,7 @@ RUN chown vimtest:vimtest /home /plugins
 
 ADD scripts/argecho.sh /vim-build/bin/argecho
 ADD scripts/install_vim.sh /sbin/install_vim
+ADD scripts/install_neovim.sh /sbin/install_neovim
 ADD scripts/run_vim.sh /sbin/run_vim
 
 RUN chmod +x /vim-build/bin/argecho /sbin/install_vim /sbin/run_vim

example/Dockerfile

@@ -4,4 +4,5 @@ RUN install_vim -name vim-precise -tag v7.3.429 -build \
                 -name vim-trusty -tag v7.4.052 -build \
                 -name vim-vivid -tag v7.4.488 -build \
                 -name vim-wily -tag v7.4.712 -build \
-                -name vim-xenial -tag v7.4.963 -build
+                -name vim-xenial -tag v7.4.963 -build \
+    install_neovim

scripts/install_neovim.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+#
+# Install Neovim as /vim-build/bin/nvim.
+#
+# This is separate from install_vim.sh, because there is not much to share, but
+# uses the same names and tries to keep close to its ancestor.
+
+set -e
+
+TAG=master
+NAME=nvim-${TAG}
+VIM_NAME="nvim_${TAG}"
+VIM_PATH="/vim-build/$VIM_NAME"
+
+apk add --update-cache --no-cache \
+  libuv \
+  python3
+apk add --update-cache --no-cache --virtual neovim-build \
+  autoconf \
+  automake \
+  ca-certificates \
+  cmake \
+  curl \
+  g++ \
+  git \
+  libtool \
+  libuv-dev \
+  m4 \
+  make \
+  ncurses ncurses-dev ncurses-libs ncurses-terminfo \
+  perl \
+  python3-dev \
+  unzip \
+  xz
+
+# Install Neovim.
+# I could not make USE_BUNDLED_LUAJIT=OFF work: check_lua_module did not find
+# lpeg.  Seems to be related to the luarocks being installed not with the
+# system's luajit?!
+#
+# NOTE: -DENABLE_JEMALLOC=OFF is required to fix "bus error":
+# % make
+# > Scanning dependencies of target vimball-tags
+# > make[3]: Leaving directory '/neovim/build'
+# > make[3]: Entering directory '/neovim/build'
+# > Bus error (core dumped)
+# > runtime/CMakeFiles/vimball-tags.dir/build.make:57: recipe for target 'runtime/CMakeFiles/vimball-tags' failed
+git clone --depth=1 https://github.com/neovim/neovim.git && \
+  cd neovim && \
+  make CMAKE_EXTRA_FLAGS="-DCMAKE_INSTALL_PREFIX=$VIM_PATH \
+      -DENABLE_JEMALLOC=OFF" \
+    DEPS_CMAKE_FLAGS="\
+      -DUSE_BUNDLED_JEMALLOC=OFF \
+      -DUSE_BUNDLED_LIBUV=OFF" && \
+  make install && \
+  cd .. && \
+  rm -rf neovim
+
+python3 -m ensurepip && \
+  rm -r /usr/lib/python*/ensurepip && \
+  pip3 install --no-cache-dir --upgrade pip setuptools && \
+  pip3 install --no-cache-dir neovim || exit 1
+
+ln -s /usr/local/bin/nvim /vim-build/bin/$NAME
+
+apk del neovim-build
+rm -rf /var/cache/apk/* /tmp/* /var/tmp/* /root/.cache