From 361949b8bc76ae8054b049eb30d027baa6e03247 Mon Sep 17 00:00:00 2001
From: jsalatiel <jsalatiel@users.noreply.github.com>
Date: Thu, 6 Jun 2024 07:36:42 -0300
Subject: [PATCH 1/2] Add a sysext for vim-huge

There are several cases when the user needs to edit k8s yamls inplace directly on the master nodes and having syntax highlighting and advanced formatting of vim available is a nice feature since the default vim of flatcar have those disabled.
---
 create_vim-huge_sysext.sh | 49 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 create_vim-huge_sysext.sh

diff --git a/create_vim-huge_sysext.sh b/create_vim-huge_sysext.sh
new file mode 100644
index 0000000..412ea81
--- /dev/null
+++ b/create_vim-huge_sysext.sh
@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+export ARCH="${ARCH-x86-64}"
+SCRIPTFOLDER="$(dirname "$(readlink -f "$0")")"
+
+if [ $# -lt 2 ] || [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
+  echo "Usage: $0 VERSION SYSEXTNAME"
+  echo "The script will download the vim version you choose (e.g. 9.0.1678 ), build a static binary and create a sysext squashfs image with the name SYSEXTNAME.raw in the current folder."
+  echo "A temporary directory named SYSEXTNAME in the current folder will be created and deleted again."
+  echo "All files in the sysext image will be owned by root."
+  echo "The build process requires docker"
+  "${SCRIPTFOLDER}"/bake.sh --help
+  exit 1
+fi
+
+VERSION="$1"
+SYSEXTNAME="$2"
+
+if ! command -v docker &>/dev/null; then
+  echo Missing docker in path
+  exit 1
+fi
+
+SUFFIX=
+if  [ "${ARCH}" = "x86-64" ] || [ "${ARCH}" = "x86_64" ]; then
+  ARCH=amd64
+elif [ "${ARCH}" = "aarch64" ] || [ "${ARCH}" = "arm64" ]; then
+  ARCH="arm64"
+  SUFFIX="v8"
+fi
+IMG=docker.io/"${ARCH}${SUFFIX}"/alpine:3.19
+mkdir -p "${SYSEXTNAME}"
+cat >"${SYSEXTNAME}"/build.sh <<EOF
+#!/bin/sh
+set -euo pipefail
+cd /opt && wget https://github.com/vim/vim/archive/v${VERSION}.tar.gz && tar xfz v${VERSION}.tar.gz && cd vim-${VERSION}
+apk --no-cache add gcc make musl-dev ncurses-static autoconf automake alpine-sdk
+LDFLAGS="-static" ./configure --prefix=/usr --sysconfdir /etc/ --disable-channel --disable-gpm --disable-gtktest --disable-gui --disable-netbeans --disable-nls --disable-selinux --disable-smack --disable-sysmouse --disable-xsmp --enable-multibyte --with-features=huge --without-x --with-tlib=ncursesw --mandir=/tmp --docdir=/tmp 
+make -j16
+make DESTDIR=/install_root install
+rm -rfv /install_root/usr/share/applications /install_root/usr/share/icons /install_root/usr/share/man
+chown \$(stat -c %u:%g /install_root/build.sh) /install_root -R
+EOF
+chmod +x "${SYSEXTNAME}"/build.sh
+docker run -v "${PWD}/${SYSEXTNAME}":/install_root/  --rm "${IMG}" /bin/sh -c /install_root/build.sh
+rm -f "${SYSEXTNAME}"/build.sh
+RELOAD=1 "${SCRIPTFOLDER}"/bake.sh "${SYSEXTNAME}"
+rm -rf "${SYSEXTNAME}"

From 81f6814d1ca782cdb3490d9bbecd8d8f3381d790 Mon Sep 17 00:00:00 2001
From: salatiel <salatiel@none>
Date: Thu, 1 Aug 2024 10:50:34 -0300
Subject: [PATCH 2/2] Improve vimrc defaults

---
 create_vim-huge_sysext.sh | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 mode change 100644 => 100755 create_vim-huge_sysext.sh

diff --git a/create_vim-huge_sysext.sh b/create_vim-huge_sysext.sh
old mode 100644
new mode 100755
index 412ea81..7b0da05
--- a/create_vim-huge_sysext.sh
+++ b/create_vim-huge_sysext.sh
@@ -45,5 +45,32 @@ EOF
 chmod +x "${SYSEXTNAME}"/build.sh
 docker run -v "${PWD}/${SYSEXTNAME}":/install_root/  --rm "${IMG}" /bin/sh -c /install_root/build.sh
 rm -f "${SYSEXTNAME}"/build.sh
+cat > "${SYSEXTNAME}"/usr/share/vim/vimrc  <<-"EOF"
+" Vim will load $VIMRUNTIME/defaults.vim if the user does not have a vimrc.
+" This happens after /etc/vim/vimrc(.local) are loaded, so it will override
+" any settings in these files.
+" Thus we source the default and disable load defaults afterwords so we can override
+" options in these files.
+" Use :verbose set $option? or :scriptnames to see the where any option is being set from
+if filereadable("/usr/share/vim/vim90/defaults.vim")
+  source /usr/share/vim/vim90/defaults.vim
+endif
+let g:skip_defaults_vim = 1
+
+" Read vimrc.local from /etc if it exists. (read-write root images)
+if filereadable("/etc/vim/vimrc.local")
+  source /etc/vim/vimrc.local
+endif
+
+" Useful config for editing yaml files 
+set ai ts=2 sw=2 et
+set pastetoggle=<F3>
+set ignorecase
+set mouse-=a
+inoremap <S-Tab> <C-d>
+map <silent> <F5> :set cursorcolumn!<CR>
+set maxmempattern=50000
+EOF
+
 RELOAD=1 "${SCRIPTFOLDER}"/bake.sh "${SYSEXTNAME}"
 rm -rf "${SYSEXTNAME}"