Revision 13229
Added by Aaron Marcuse-Kubitza over 10 years ago
| trunk/lib/sh/util.sh | ||
|---|---|---|
| 199 | 199 |
|
| 200 | 200 |
#### functions |
| 201 | 201 |
|
| 202 |
func_exists() { declare -f "$1" >/dev/null; }
|
|
| 203 |
|
|
| 202 | 204 |
kw_params() # usage: func() { kw_params param_var...; }; ...; param_var=... cmd
|
| 203 | 205 |
# removes keyword-param-only vars from the environment |
| 204 | 206 |
{ unexport "$@"; }
|
| ... | ... | |
| 223 | 225 |
all_funcs() # usage: for func in $(all_funcs); do ...; done # all declared funcs |
| 224 | 226 |
{ declare -F|while read -r line; do echo -n "${line#declare -f } "; done; }
|
| 225 | 227 |
|
| 228 |
copy_func() # usage: from=... to=... copy_func |
|
| 229 |
# $to must not exist. to get around the no-clobber restriction, use `unset -f`. |
|
| 230 |
{
|
|
| 231 |
: "${from:?}" "${to:?}"
|
|
| 232 |
func_exists "$from" || die "function does not exist: $from" |
|
| 233 |
! func_exists "$to" || die "function already exists: $to" |
|
| 234 |
local from_def="$(declare -f "$from")" |
|
| 235 |
eval "$to${from_def#$from}"
|
|
| 236 |
} |
|
| 226 | 237 |
|
| 238 |
func_override() # usage: func_override old_name__suffix |
|
| 239 |
{ from="${1%__*}" to="$1" copy_func; }
|
|
| 240 |
|
|
| 241 |
ensure_nested_func() # usage: func__nested_func() { ensure_nested_func; ... }
|
|
| 242 |
{
|
|
| 243 |
local nested_func="${FUNCNAME[1]}"
|
|
| 244 |
local func="${nested_func%%__*}"
|
|
| 245 |
contains "$func" "${FUNCNAME[@]}" || \
|
|
| 246 |
die "$nested_func() must be used by $func()" |
|
| 247 |
} |
|
| 248 |
|
|
| 249 |
|
|
| 227 | 250 |
#### exceptions |
| 228 | 251 |
|
| 229 | 252 |
fi # load new aliases |
| ... | ... | |
| 612 | 635 |
} |
| 613 | 636 |
|
| 614 | 637 |
|
| 615 |
#### functions |
|
| 616 |
|
|
| 617 |
func_exists() { declare -f "$1" >/dev/null; }
|
|
| 618 |
|
|
| 619 |
copy_func() # usage: from=... to=... copy_func |
|
| 620 |
# $to must not exist. to get around the no-clobber restriction, use `unset -f`. |
|
| 621 |
{
|
|
| 622 |
: "${from:?}" "${to:?}"
|
|
| 623 |
func_exists "$from" || die "function does not exist: $from" |
|
| 624 |
! func_exists "$to" || die "function already exists: $to" |
|
| 625 |
local from_def="$(declare -f "$from")" |
|
| 626 |
eval "$to${from_def#$from}"
|
|
| 627 |
} |
|
| 628 |
|
|
| 629 |
func_override() # usage: func_override old_name__suffix |
|
| 630 |
{ from="${1%__*}" to="$1" copy_func; }
|
|
| 631 |
|
|
| 632 |
ensure_nested_func() # usage: func__nested_func() { ensure_nested_func; ... }
|
|
| 633 |
{
|
|
| 634 |
local nested_func="${FUNCNAME[1]}"
|
|
| 635 |
local func="${nested_func%%__*}"
|
|
| 636 |
contains "$func" "${FUNCNAME[@]}" || \
|
|
| 637 |
die "$nested_func() must be used by $func()" |
|
| 638 |
} |
|
| 639 |
|
|
| 640 |
|
|
| 641 | 638 |
#### paths |
| 642 | 639 |
|
| 643 | 640 |
# cache realpath |
Also available in: Unified diff
lib/sh/util.sh: 2nd functions section: moved to 1st functions section