neovim/scripts/vim-patch.sh

639 lines
19 KiB
Bash
Executable File

#!/usr/bin/env bash
set -e
set -u
# Use privileged mode, which e.g. skips using CDPATH.
set -p
readonly NVIM_SOURCE_DIR="${NVIM_SOURCE_DIR:-$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)}"
readonly VIM_SOURCE_DIR_DEFAULT="${NVIM_SOURCE_DIR}/.vim-src"
readonly VIM_SOURCE_DIR="${VIM_SOURCE_DIR:-${VIM_SOURCE_DIR_DEFAULT}}"
readonly BASENAME="$(basename "${0}")"
readonly BRANCH_PREFIX="vim-"
CREATED_FILES=()
usage() {
echo "Port Vim patches to Neovim"
echo "https://github.com/neovim/neovim/wiki/Merging-patches-from-upstream-vim"
echo
echo "Usage: ${BASENAME} [-h | -l | -p vim-revision | -r pr-number]"
echo
echo "Options:"
echo " -h Show this message and exit."
echo " -l [git-log opts] List missing Vim patches."
echo " -L [git-log opts] List missing Vim patches (for scripts)."
echo " -M List all merged patch-numbers (at current v:version)."
echo " -p {vim-revision} Download and generate a Vim patch. vim-revision"
echo " can be a Vim version (8.0.xxx) or a Git hash."
echo " -P {vim-revision} Download, generate and apply a Vim patch."
echo " -g {vim-revision} Download a Vim patch."
echo " -s Create a vim-patch pull request."
echo " -r {pr-number} Review a vim-patch pull request."
echo " -V Clone the Vim source code to \$VIM_SOURCE_DIR."
echo
echo " \$VIM_SOURCE_DIR controls where Vim sources are found"
echo " (default: '${VIM_SOURCE_DIR_DEFAULT}')"
echo
echo "Examples:"
echo
echo " - List missing patches for a given file (in the Vim source):"
echo " $0 -l -- src/edit.c"
}
msg_ok() {
printf '\e[32m✔\e[0m %s\n' "$@"
}
msg_err() {
printf '\e[31m✘\e[0m %s\n' "$@" >&2
}
# Checks if a program is in the user's PATH, and is executable.
check_executable() {
test -x "$(command -v "${1}")"
}
require_executable() {
if ! check_executable "${1}"; then
>&2 echo "${BASENAME}: '${1}' not found in PATH or not executable."
exit 1
fi
}
clean_files() {
if [[ ${#CREATED_FILES[@]} -eq 0 ]]; then
return
fi
echo
echo "Created files:"
local file
for file in "${CREATED_FILES[@]}"; do
echo "${file}"
done
read -p "Delete these files (Y/n)? " -n 1 -r reply
echo
if [[ "${reply}" == n ]]; then
echo "You can use 'git clean' to remove these files when you're done."
else
rm -- "${CREATED_FILES[@]}"
fi
}
get_vim_sources() {
require_executable git
if [[ ! -d ${VIM_SOURCE_DIR} ]]; then
echo "Cloning Vim into: ${VIM_SOURCE_DIR}"
git clone https://github.com/vim/vim.git "${VIM_SOURCE_DIR}"
cd "${VIM_SOURCE_DIR}"
else
cd "${VIM_SOURCE_DIR}"
if ! [ -d ".git" ] \
&& ! [ "$(git rev-parse --show-toplevel)" = "${VIM_SOURCE_DIR}" ]; then
msg_err "${VIM_SOURCE_DIR} does not appear to be a git repository."
echo " Please remove it and try again."
exit 1
fi
echo "Updating Vim sources: ${VIM_SOURCE_DIR}"
if git pull --ff; then
msg_ok "Updated Vim sources."
else
msg_err "Could not update Vim sources; ignoring error."
fi
fi
}
commit_message() {
if [[ -n "$vim_tag" ]]; then
printf '%s\n%s' "${vim_message}" "${vim_commit_url}"
else
printf 'vim-patch:%s\n\n%s\n%s' "$vim_version" "$vim_message" "$vim_commit_url"
fi
}
find_git_remote() {
git_remote=$(git remote -v \
| awk '$2 ~ /github.com[:\/]neovim\/neovim/ && $3 == "(fetch)" {print $1; exit}')
if [[ -z "$git_remote" ]]; then
git_remote="origin"
fi
echo "$git_remote"
}
# Assign variables for a given Vim tag, patch version, or commit.
# Might exit in case it cannot be found.
assign_commit_details() {
local vim_commit_ref
if [[ ${1} =~ v?[0-9]\.[0-9]\.[0-9]{3,4} ]]; then
# Interpret parameter as version number (tag).
if [[ "${1:0:1}" == v ]]; then
vim_version="${1:1}"
vim_tag="${1}"
else
vim_version="${1}"
vim_tag="v${1}"
fi
vim_commit_ref="$vim_tag"
local munge_commit_line=true
else
# Interpret parameter as commit hash.
vim_version="${1:0:12}"
vim_tag=
vim_commit_ref="$vim_version"
local munge_commit_line=false
fi
vim_commit=$(git -C "${VIM_SOURCE_DIR}" log -1 --format="%H" "${vim_commit_ref}" --) || {
>&2 msg_err "Couldn't find Vim revision '${vim_commit_ref}'."
exit 3
}
vim_commit_url="https://github.com/vim/vim/commit/${vim_commit}"
vim_message="$(git -C "${VIM_SOURCE_DIR}" log -1 --pretty='format:%B' "${vim_commit}" \
| sed -e 's/\(#[0-9]\{1,\}\)/vim\/vim\1/g')"
if [[ ${munge_commit_line} == "true" ]]; then
# Remove first line of commit message.
vim_message="$(echo "${vim_message}" | sed -e '1s/^patch /vim-patch:/')"
fi
patch_file="vim-${vim_version}.patch"
}
# Patch surgery
preprocess_patch() {
local file="$1"
local nvim="nvim -u NORC -i NONE --headless"
# Remove *.proto, Make*, gui_*, some if_*
local na_src='proto\|Make*\|gui_*\|if_lua\|if_mzsch\|if_olepp\|if_ole\|if_perl\|if_py\|if_ruby\|if_tcl\|if_xcmdsrv'
2>/dev/null $nvim --cmd 'set dir=/tmp' +'g@^diff --git a/src/\S*\<\%(testdir/\)\@<!\%('"${na_src}"'\)@norm! d/\v(^diff)|%$
' +w +q "$file"
# Remove unwanted Vim doc files.
local na_doc='channel\.txt\|netbeans\.txt\|os_\w\+\.txt\|term\.txt\|todo\.txt\|version\d\.txt\|sponsor\.txt\|intro\.txt\|tags'
2>/dev/null $nvim --cmd 'set dir=/tmp' +'g@^diff --git a/runtime/doc/\<\%('"${na_doc}"'\)\>@norm! d/\v(^diff)|%$
' +w +q "$file"
# Remove "Last change ..." changes in doc files.
2>/dev/null $nvim --cmd 'set dir=/tmp' +'%s/^@@.*\n.*For Vim version.*Last change.*\n.*For Vim version.*Last change.*//' +w +q "$file"
# Remove screen dumps, testdir/Make_*.mak files
local na_src_testdir='Make_amiga.mak\|Make_dos.mak\|Make_ming.mak\|Make_vms.mms\|dumps/.*.dump'
2>/dev/null $nvim --cmd 'set dir=/tmp' +'g@^diff --git a/src/testdir/\<\%('"${na_src_testdir}"'\)\>@norm! d/\v(^diff)|%$
' +w +q "$file"
# Remove version.c #7555
local na_po='version.c'
2>/dev/null $nvim --cmd 'set dir=/tmp' +'g@^diff --git a/src/\<\%('${na_po}'\)\>@norm! d/\v(^diff)|%$
' +w +q "$file"
# Remove some *.po files. #5622
local na_po='sjiscorr.c\|ja.sjis.po\|ko.po\|pl.cp1250.po\|pl.po\|ru.cp1251.po\|uk.cp1251.po\|zh_CN.cp936.po\|zh_CN.po\|zh_TW.po'
2>/dev/null $nvim --cmd 'set dir=/tmp' +'g@^diff --git a/src/po/\<\%('${na_po}'\)\>@norm! d/\v(^diff)|%$
' +w +q "$file"
# Remove vimrc_example.vim
local na_vimrcexample='vimrc_example\.vim'
2>/dev/null $nvim --cmd 'set dir=/tmp' +'g@^diff --git a/runtime/\<\%('${na_vimrcexample}'\)\>@norm! d/\v(^diff)|%$
' +w +q "$file"
# Rename src/ paths to src/nvim/
LC_ALL=C sed -e 's/\( [ab]\/src\)/\1\/nvim/g' \
"$file" > "$file".tmp && mv "$file".tmp "$file"
# Rename test_urls.vim to check_urls.vim
LC_ALL=C sed -e 's@\( [ab]\)/runtime/doc/test\(_urls.vim\)@\1/scripts/check\2@g' \
"$file" > "$file".tmp && mv "$file".tmp "$file"
# Rename path to check_colors.vim
LC_ALL=C sed -e 's@\( [ab]/runtime\)/colors/\(tools/check_colors.vim\)@\1/\2@g' \
"$file" > "$file".tmp && mv "$file".tmp "$file"
}
get_vimpatch() {
get_vim_sources
assign_commit_details "${1}"
msg_ok "Found Vim revision '${vim_commit}'."
local patch_content
patch_content="$(git --no-pager show --unified=5 --color=never -1 --pretty=medium "${vim_commit}")"
cd "${NVIM_SOURCE_DIR}"
printf "Creating patch...\n"
echo "$patch_content" > "${NVIM_SOURCE_DIR}/${patch_file}"
printf "Pre-processing patch...\n"
preprocess_patch "${NVIM_SOURCE_DIR}/${patch_file}"
msg_ok "Saved patch to '${NVIM_SOURCE_DIR}/${patch_file}'."
}
# shellcheck disable=SC2015 # "Note that A && B || C is not if-then-else."
stage_patch() {
get_vimpatch "$1"
local try_apply="${2:-}"
local git_remote
git_remote="$(find_git_remote)"
local checked_out_branch
checked_out_branch="$(git rev-parse --abbrev-ref HEAD)"
if [[ "${checked_out_branch}" == ${BRANCH_PREFIX}* ]]; then
msg_ok "Current branch '${checked_out_branch}' seems to be a vim-patch"
echo " branch; not creating a new branch."
else
printf '\nFetching "%s/master".\n' "${git_remote}"
output="$(git fetch "${git_remote}" master 2>&1)" &&
msg_ok "${output}" ||
(msg_err "${output}"; false)
local nvim_branch="${BRANCH_PREFIX}${vim_version}"
echo
echo "Creating new branch '${nvim_branch}' based on '${git_remote}/master'."
cd "${NVIM_SOURCE_DIR}"
output="$(git checkout -b "${nvim_branch}" "${git_remote}/master" 2>&1)" &&
msg_ok "${output}" ||
(msg_err "${output}"; false)
fi
printf "\nCreating empty commit with correct commit message.\n"
output="$(commit_message | git commit --allow-empty --file 2>&1 -)" &&
msg_ok "${output}" ||
(msg_err "${output}"; false)
local ret=0
if test -n "$try_apply" ; then
if ! check_executable patch; then
printf "\n"
msg_err "'patch' command not found\n"
else
printf "\nApplying patch...\n"
patch -p1 --fuzz=1 --no-backup-if-mismatch < "${patch_file}" || ret=$?
fi
printf "\nInstructions:\n Proceed to port the patch.\n"
else
printf '\nInstructions:\n Proceed to port the patch.\n Try the "patch" command (or use "%s -P ..." next time):\n patch -p1 < %s\n' "${BASENAME}" "${patch_file}"
fi
printf '
Stage your changes ("git add ..."), then use "git commit --amend" to commit.
To port more patches (if any) related to %s,
run "%s" again.
* Do this only for _related_ patches (otherwise it increases the
size of the pull request, making it harder to review)
When you are done, try "%s -s" to create the pull request.
See the wiki for more information:
* https://github.com/neovim/neovim/wiki/Merging-patches-from-upstream-vim
' "${vim_version}" "${BASENAME}" "${BASENAME}"
return $ret
}
hub_pr() {
hub pull-request -m "$1"
}
git_hub_pr() {
git hub pull new -m "$1"
}
# shellcheck disable=SC2015 # "Note that A && B || C is not if-then-else."
submit_pr() {
require_executable git
local push_first
push_first=1
local submit_fn
if check_executable hub; then
submit_fn="hub_pr"
elif check_executable git-hub; then
push_first=0
submit_fn="git_hub_pr"
else
>&2 echo "${BASENAME}: 'hub' or 'git-hub' not found in PATH or not executable."
>&2 echo " Get it here: https://hub.github.com/"
exit 1
fi
cd "${NVIM_SOURCE_DIR}"
local checked_out_branch
checked_out_branch="$(git rev-parse --abbrev-ref HEAD)"
if [[ "${checked_out_branch}" != ${BRANCH_PREFIX}* ]]; then
msg_err "Current branch '${checked_out_branch}' doesn't seem to be a vim-patch branch."
exit 1
fi
local git_remote
git_remote="$(find_git_remote)"
local pr_body
pr_body="$(git log --grep=vim-patch --reverse --format='#### %s%n%n%b%n' "${git_remote}"/master..HEAD)"
local patches
# Extract just the "vim-patch:X.Y.ZZZZ" or "vim-patch:sha" portion of each log
patches=("$(git log --grep=vim-patch --reverse --format='%s' "${git_remote}"/master..HEAD | sed 's/: .*//')")
patches=("${patches[@]//vim-patch:}") # Remove 'vim-patch:' prefix for each item in array.
local pr_title="${patches[*]}" # Create space-separated string from array.
pr_title="${pr_title// /,}" # Replace spaces with commas.
local pr_message
pr_message="$(printf '[RFC] vim-patch:%s\n\n%s\n' "${pr_title#,}" "${pr_body}")"
if [[ $push_first -ne 0 ]]; then
echo "Pushing to 'origin/${checked_out_branch}'."
output="$(git push origin "${checked_out_branch}" 2>&1)" &&
msg_ok "${output}" ||
(msg_err "${output}"; false)
echo
fi
echo "Creating pull request."
output="$(${submit_fn} "${pr_message}" 2>&1)" &&
msg_ok "${output}" ||
(msg_err "${output}"; false)
echo
echo "Cleaning up files."
local patch_file
for patch_file in "${patches[@]}"; do
patch_file="vim-${patch_file}.patch"
if [[ ! -f "${NVIM_SOURCE_DIR}/${patch_file}" ]]; then
continue
fi
rm -- "${NVIM_SOURCE_DIR}/${patch_file}"
msg_ok "Removed '${NVIM_SOURCE_DIR}/${patch_file}'."
done
}
# Gets all Vim commits since the "start" commit.
list_vim_commits() { (
cd "${VIM_SOURCE_DIR}" && git log --reverse --format='%H' v8.0.0000..HEAD "$@"
) }
# Prints all (sorted) "vim-patch:xxx" tokens found in the Nvim git log.
list_vimpatch_tokens() {
# Use sed…{7,7} to normalize (internal) Git hashes (for tokens caches).
git -C "${NVIM_SOURCE_DIR}" log -E --grep='vim-patch:[^ ,{]{7,}' \
| grep -oE 'vim-patch:[^ ,{:]{7,}' \
| sort \
| uniq \
| sed -nE 's/^(vim-patch:([0-9]+\.[^ ]+|[0-9a-z]{7,7})).*/\1/p'
}
# Prints all patch-numbers (for the current v:version) for which there is
# a "vim-patch:xxx" token in the Nvim git log.
list_vimpatch_numbers() {
# Transform "vim-patch:X.Y.ZZZZ" to "ZZZZ".
list_vimpatch_tokens | while read -r vimpatch_token; do
echo "$vimpatch_token" | grep '8\.0\.' | sed 's/.*vim-patch:8\.0\.\([0-9a-z]\+\).*/\1/'
done
}
# Prints a newline-delimited list of Vim commits, for use by scripts.
# "$@" is passed to list_vim_commits, as extra arguments to git-log.
list_missing_vimpatches() {
local token vim_commit vim_tag patch_number
declare -A tokens
declare -A vim_commit_tags
declare -a git_log_args
# Massage arguments for git-log.
declare -A git_log_replacements=(
[^\(.*/\)?src/nvim/\(.*\)]="\${BASH_REMATCH[1]}src/\${BASH_REMATCH[2]}"
[^\(.*/\)?\.vim-src/\(.*\)]="\${BASH_REMATCH[2]}"
)
for i in "$@"; do
for j in "${!git_log_replacements[@]}"; do
if [[ "$i" =~ $j ]]; then
eval "git_log_args+=(${git_log_replacements[$j]})"
continue 2
fi
done
git_log_args+=("$i")
done
# Find all "vim-patch:xxx" tokens in the Nvim git log.
for token in $(list_vimpatch_tokens); do
tokens[$token]=1
done
# Create an associative array mapping Vim commits to tags.
eval "declare -A vim_commit_tags=(
$(git -C "${VIM_SOURCE_DIR}" for-each-ref refs/tags \
--format '[%(objectname)]=%(refname:strip=2)' \
--sort='-*authordate' \
--shell)
)"
# Exit in case of errors from the above eval (empty vim_commit_tags).
if ! (( "${#vim_commit_tags[@]}" )); then
msg_err "Could not get Vim commits/tags."
exit 1
fi
# Get missing Vim commits
set +u # Avoid "unbound variable" with bash < 4.4 below.
for vim_commit in $(list_vim_commits "${git_log_args[@]}"); do
# Check for vim-patch:<commit_hash> (usually runtime updates).
token="vim-patch:${vim_commit:0:7}"
if [[ "${tokens[$token]-}" ]]; then
continue
fi
vim_tag="${vim_commit_tags[$vim_commit]-}"
if [[ -n "$vim_tag" ]]; then
# Check for vim-patch:<tag> (not commit hash).
patch_number="vim-patch:${vim_tag:1}" # "v7.4.0001" => "7.4.0001"
if [[ "${tokens[$patch_number]-}" ]]; then
continue
fi
echo "$vim_tag"
else
echo "$vim_commit"
fi
done
set -u
}
# Prints a human-formatted list of Vim commits, with instructional messages.
# Passes "$@" onto list_missing_vimpatches (args for git-log).
show_vimpatches() {
get_vim_sources
printf "\nVim patches missing from Neovim:\n"
local -A runtime_commits
for commit in $(git -C "${VIM_SOURCE_DIR}" log --format="%H %D" -- runtime | sed 's/,\? tag: / /g'); do
runtime_commits[$commit]=1
done
list_missing_vimpatches "$@" | while read -r vim_commit; do
if [[ "${runtime_commits[$vim_commit]-}" ]]; then
printf ' • %s (+runtime)\n' "${vim_commit}"
else
printf ' • %s\n' "${vim_commit}"
fi
done
printf "Instructions:
To port one of the above patches to Neovim, execute
this script with the patch revision as argument and
follow the instructions.
Examples: '%s -p 7.4.487'
'%s -p 1e8ebf870720e7b671f98f22d653009826304c4f'
NOTE: Please port the _oldest_ patch if you possibly can.
Out-of-order patches increase the possibility of bugs.
" "${BASENAME}" "${BASENAME}"
}
review_commit() {
local nvim_commit_url="${1}"
local nvim_patch_url="${nvim_commit_url}.patch"
local git_patch_prefix='Subject: \[PATCH\] '
local nvim_patch
nvim_patch="$(curl -Ssf "${nvim_patch_url}")"
local vim_version
vim_version="$(head -n 4 <<< "${nvim_patch}" | sed -n 's/'"${git_patch_prefix}"'vim-patch:\([a-z0-9.]*\)\(:.*\)\{0,1\}$/\1/p')"
echo
if [[ -n "${vim_version}" ]]; then
msg_ok "Detected Vim patch '${vim_version}'."
else
msg_err "Could not detect the Vim patch number."
echo " This script assumes that the PR contains only commits"
echo " with 'vim-patch:XXX' in their title."
echo
printf -- '%s\n\n' "$(head -n 4 <<< "${nvim_patch}")"
local reply
read -p "Continue reviewing (y/N)? " -n 1 -r reply
if [[ "${reply}" == y ]]; then
echo
return
fi
exit 1
fi
assign_commit_details "${vim_version}"
echo
echo "Creating files."
echo "${nvim_patch}" > "${NVIM_SOURCE_DIR}/n${patch_file}"
msg_ok "Saved pull request diff to '${NVIM_SOURCE_DIR}/n${patch_file}'."
CREATED_FILES+=("${NVIM_SOURCE_DIR}/n${patch_file}")
local nvim="nvim -u NORC -n -i NONE --headless"
2>/dev/null $nvim --cmd 'set dir=/tmp' +'1,/^$/g/^ /-1join' +w +q "${NVIM_SOURCE_DIR}/n${patch_file}"
local expected_commit_message
expected_commit_message="$(commit_message)"
local message_length
message_length="$(wc -l <<< "${expected_commit_message}")"
local commit_message
commit_message="$(tail -n +4 "${NVIM_SOURCE_DIR}/n${patch_file}" | head -n "${message_length}")"
if [[ "${commit_message#${git_patch_prefix}}" == "${expected_commit_message}" ]]; then
msg_ok "Found expected commit message."
else
msg_err "Wrong commit message."
echo " Expected:"
echo "${expected_commit_message}"
echo " Actual:"
echo "${commit_message#${git_patch_prefix}}"
fi
get_vimpatch "${vim_version}"
CREATED_FILES+=("${NVIM_SOURCE_DIR}/${patch_file}")
echo
echo "Launching nvim."
nvim -c "cd ${NVIM_SOURCE_DIR}" \
-O "${NVIM_SOURCE_DIR}/${patch_file}" "${NVIM_SOURCE_DIR}/n${patch_file}"
}
review_pr() {
require_executable curl
require_executable nvim
require_executable jq
get_vim_sources
local pr="${1}"
echo
echo "Downloading data for pull request #${pr}."
local pr_commit_urls=(
"$(curl -Ssf "https://api.github.com/repos/neovim/neovim/pulls/${pr}/commits" \
| jq -r '.[].html_url')")
echo "Found ${#pr_commit_urls[@]} commit(s)."
local pr_commit_url
local reply
for pr_commit_url in "${pr_commit_urls[@]}"; do
review_commit "${pr_commit_url}"
if [[ "${pr_commit_url}" != "${pr_commit_urls[-1]}" ]]; then
read -p "Continue with next commit (Y/n)? " -n 1 -r reply
echo
if [[ "${reply}" == n ]]; then
break
fi
fi
done
clean_files
}
while getopts "hlLMVp:P:g:r:s" opt; do
case ${opt} in
h)
usage
exit 0
;;
l)
shift # remove opt
show_vimpatches "$@"
exit 0
;;
L)
shift # remove opt
list_missing_vimpatches "$@"
exit 0
;;
M)
list_vimpatch_numbers
exit 0
;;
p)
stage_patch "${OPTARG}"
exit
;;
P)
stage_patch "${OPTARG}" TRY_APPLY
exit 0
;;
g)
get_vimpatch "${OPTARG}"
exit 0
;;
r)
review_pr "${OPTARG}"
exit 0
;;
s)
submit_pr
exit 0
;;
V)
get_vim_sources
exit 0
;;
*)
exit 1
;;
esac
done
usage
# vim: et sw=2