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[completion] Prevent running a command during 'eval'

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Do not attempt to provide fuzzy completion if the prefix contains a
pattern that may start an arbitraty command.

* $(...)
* `...`
* <(...)

Close #3459
This commit is contained in:
Junegunn Choi
2023-10-02 20:40:49 +09:00
parent 4fdc08295b
commit ee4ba104e7
2 changed files with 8 additions and 2 deletions
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4
shell/completion.bash
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@@ -170,7 +170,7 @@ __fzf_generic_path_completion() {
COMPREPLY=()
trigger=${FZF_COMPLETION_TRIGGER-'**'}
cur="${COMP_WORDS[COMP_CWORD]}"
if [[ "$cur" == *"$trigger" ]]; then
if [[ "$cur" == *"$trigger" ]] && [[ $cur != *'$('* ]] && [[ $cur != *'<('* ]] && [[ $cur != *'`'* ]]; then
base=${cur:0:${#cur}-${#trigger}}
eval "base=$base"
@@ -235,7 +235,7 @@ _fzf_complete() {
cmd="${COMP_WORDS[0]//[^A-Za-z0-9_=]/_}"
trigger=${FZF_COMPLETION_TRIGGER-'**'}
cur="${COMP_WORDS[COMP_CWORD]}"
if [[ "$cur" == *"$trigger" ]]; then
if [[ "$cur" == *"$trigger" ]] && [[ $cur != *'$('* ]] && [[ $cur != *'<('* ]] && [[ $cur != *'`'* ]]; then
cur=${cur:0:${#cur}-${#trigger}}
selected=$(FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore ${FZF_DEFAULT_OPTS-} ${FZF_COMPLETION_OPTS-} $str_arg" __fzf_comprun "${rest[0]}" "${args[@]}" -q "$cur" | $post | tr '\n' ' ')