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https://github.com/go-task/task.git
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7c90ee35f8
Add completion/tests/ harnesses that exercise the engine protocol and every shell wrapper without a TTY: the engine via `task __complete`, bash/zsh by stubbing the completion-system helpers, fish via `complete -C`, and PowerShell via the completion API. A `test:completion` task and a matching CI job (with a strict mode that fails when an expected shell is missing) run them all. Writing the suite surfaced and fixed real wrapper bugs: - fish: `math` has no bitwise `&`, so every directive check errored; test bits with integer division + modulo instead. Also filter FilterFileExt results ourselves, as __fish_complete_suffix only prioritizes the extension. - powershell: `Get-ChildItem -Include` is ignored without -Recurse, so file extension filtering returned nothing; filter with Where-Object instead. - bash: guard empty-array expansion so completion with zero candidates does not trip `set -u` on bash 3.2. Also name the completion directive bits (NO_SPACE, FILTER_FILE_EXT, …) in every wrapper instead of using raw numbers.
82 lines
2.0 KiB
Bash
82 lines
2.0 KiB
Bash
# vim: set tabstop=2 shiftwidth=2 expandtab:
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#
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# Thin wrapper around `task __complete`. All suggestion logic lives in the
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# Go engine — do not add completion logic here.
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TASK_CMD="${TASK_EXE:-task}"
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_task() {
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local cur prev words cword
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# Completion directives, mirroring internal/complete/complete.go.
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local -ri NO_SPACE=2 NO_FILE_COMP=4 FILTER_FILE_EXT=8 FILTER_DIRS=16
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# Exclude both `=` and `:` from the word breaks so `--output=` and
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# `docs:serve` reach the engine as single tokens.
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_init_completion -n =: || return
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local -a args=()
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if (( cword > 0 )); then
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args=( "${words[@]:1:cword}" )
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fi
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if (( ${#args[@]} == 0 )); then
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args=( "" )
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fi
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local output
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output=$("$TASK_CMD" __complete "${args[@]}" 2>/dev/null)
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if [[ -z "$output" ]]; then
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_filedir
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return
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fi
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local -a lines=()
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local line
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while IFS= read -r line; do
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lines+=( "$line" )
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done <<< "$output"
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local last_idx=$(( ${#lines[@]} - 1 ))
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local directive="${lines[$last_idx]#:}"
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unset 'lines[$last_idx]'
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if (( directive & FILTER_FILE_EXT )); then
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local exts=""
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# ${arr[@]+…} guards against "unbound variable" on an empty array under
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# `set -u` in bash 3.2 (macOS).
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for line in ${lines[@]+"${lines[@]}"}; do
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exts+="${exts:+|}$line"
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done
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_filedir "@($exts)"
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return
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fi
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if (( directive & FILTER_DIRS )); then
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_filedir -d
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return
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fi
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# Prefix-filter by hand instead of `compgen -W`: the latter joins/splits the
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# word list on IFS, which mangles any suggestion value containing a space.
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local value
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COMPREPLY=()
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for line in ${lines[@]+"${lines[@]}"}; do
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value="${line%%$'\t'*}"
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if [[ -z "$cur" || "$value" == "$cur"* ]]; then
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COMPREPLY+=( "$value" )
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fi
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done
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if (( directive & NO_SPACE )); then
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compopt -o nospace 2>/dev/null
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fi
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__ltrim_colon_completions "$cur"
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if (( ${#COMPREPLY[@]} == 0 )) && ! (( directive & NO_FILE_COMP )); then
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_filedir
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fi
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}
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complete -F _task "$TASK_CMD"
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