[bash,zsh] Reduce the number of fork & exec

This commit is contained in:
Koichi Murase
2025-06-03 20:25:19 +09:00
committed by Junegunn Choi
parent e3f4a51c18
commit ec521e47aa
2 changed files with 56 additions and 10 deletions

View File

@@ -460,7 +460,7 @@ _fzf_proc_completion_post() {
# }
if ! declare -F __fzf_list_hosts > /dev/null; then
__fzf_list_hosts() {
command cat \
command sort -u \
<(
# Note: To make the pathname expansion of "~/.ssh/config.d/*" work
# properly, we need to adjust the related shell options. We need to
@@ -475,11 +475,34 @@ if ! declare -F __fzf_list_hosts > /dev/null; then
shopt -u dotglob nocaseglob failglob
shopt -s nullglob
command tail -n +1 ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | command awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?%]'
command awk '
tolower($1) ~ /^host(name)?$/ {
for (i = 2; i <= NF; i++)
if ($i !~ /[*?%]/)
print $i
}
' ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null
) \
<(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts 2> /dev/null | command tr ',' '\n' | command tr -d '[' | command awk '{ print $1 " " $1 }') \
<(command grep -v '^\s*\(#\|$\)' /etc/hosts 2> /dev/null | command grep -Fv '0.0.0.0' | command sed 's/#.*//') |
command awk '{for (i = 2; i <= NF; i++) print $i}' | command sort -u
<(
command awk -F ',' '
match($0, /^[[a-z0-9.,:-]+/) {
$0 = substr($0, 1, RLENGTH)
gsub(/\[/, "")
for (i = 1; i <= NF; i++)
print $i
}
' ~/.ssh/known_hosts 2> /dev/null
) \
<(
command awk '
/^[[:blank:]]*(#|$)|0\.0\.0\.0/ { next }
{
sub(/#.*/, "")
for (i = 2; i <= NF; i++)
print $i
}
' /etc/hosts 2> /dev/null
)
}
fi

View File

@@ -242,7 +242,7 @@ _fzf_complete() {
# desired sorting and with any duplicates removed, to standard output.
if ! declare -f __fzf_list_hosts > /dev/null; then
__fzf_list_hosts() {
command cat \
command sort -u \
<(
# Note: To make the pathname expansion of "~/.ssh/config.d/*" work
# properly, we need to adjust the related shell options. We need to
@@ -253,11 +253,34 @@ if ! declare -f __fzf_list_hosts > /dev/null; then
# when no matching is found.
setopt GLOB NO_DOT_GLOB CASE_GLOB NO_NOMATCH NULL_GLOB
command tail -n +1 ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?%]'
command awk '
tolower($1) ~ /^host(name)?$/ {
for (i = 2; i <= NF; i++)
if ($i !~ /[*?%]/)
print $i
}
' ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null
) \
<(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts 2> /dev/null | tr ',' '\n' | tr -d '[' | awk '{ print $1 " " $1 }') \
<(command grep -v '^\s*\(#\|$\)' /etc/hosts 2> /dev/null | command grep -Fv '0.0.0.0' | command sed 's/#.*//') |
awk '{for (i = 2; i <= NF; i++) print $i}' | sort -u
<(
command awk -F ',' '
match($0, /^[[a-z0-9.,:-]+/) {
$0 = substr($0, 1, RLENGTH)
gsub(/\[/, "")
for (i = 1; i <= NF; i++)
print $i
}
' ~/.ssh/known_hosts 2> /dev/null
) \
<(
command awk '
/^[[:blank:]]*(#|$)|0\.0\.0\.0/ { next }
{
sub(/#.*/, "")
for (i = 2; i <= NF; i++)
print $i
}
' /etc/hosts 2> /dev/null
)
}
fi