fish-shell/share/functions/__fish_parse_configure.fish
Fabian Homborg c2970f9618 Reformat all files
This runs build_tools/style.fish, which runs clang-format on C++, fish_indent on fish and (new) black on python.

If anything is wrong with the formatting, we should fix the tools, but automated formatting is worth it.
2019-05-05 12:09:25 +02:00

72 lines
3.1 KiB
Fish

function __fish_parse_configure
if test (count $argv) -ne 1
echo "Usage: parse_configure path/to/configure" 1>&2
return 1
end
# `complete` parses `./configure` as `configure` so we have to handle all paths, not just ./
if not test -x $argv[1]
printf "Cannot find or execute '%s'\n" $argv[1] 1>&2
return 1
end
# Must support output along the lines of
# -h, --help display this help and exit
# --help=short display options specific to this package
# --help=recursive display the short help of all the included packages
# -V, --version display version information and exit
# -q, --quiet, --silent do not print `checking ...' messages
set -l next_line
set -l line
set -l buffer
# Just fish's `./configure --help` takes ~350ms to run, before parsing
# The following chain attempts to extract the help message:
cat $argv[1] | tr \n \u0e | sed -n 's/.*Report the --help message\(.*\?\)ac_status.*/\1/; s/ac_status.*//p' | tr \u0e \n |
while test "$next_line" != "" || read -lL next_line
# In autoconfigure scripts, the first column wraps at 26 chars
# echo next_line: $next_line
# echo old_line: $line
if test "$line" = ""
set line $next_line
set next_line "" # mark it as consumed
continue
else if string match -qr '^( |\t){2,}[^-]\S*' -- $next_line
# echo "continuation line found. Old value of line: " \"$line\"
set line "$line "(string trim $next_line)
set next_line "" # mark it as consumed
continue
end
# echo line: $line
# Search for one or more strings starting with `-` separated by commas
if string replace -fr '^\s+(-.*?)\s+([^\s\-].*)' '$1\n$2' -- $line | read -lL opts description
for opt in (string split -n , -- $opts | string trim)
if string match -qr -- '--[a-z_0-9-]+=\[.*\]' $opt
# --option=[OPTIONAL_VALUE]
string replace -r -- '(--[a-z_0-9-]+)=.*' '$1' $opt | read opt
else if string match -qr -- '--[a-z_0-9-]+\[=.*\]' $opt
# --option[=OPTIONAL_VALUE]
string replace -r -- '(--[a-z_0-9-]+)\[=.*' '$1' $opt | read opt
else if string match -qr -- '--[a-z_0-9-]+=[A-Z]+' $opt
# --option=CLASS_OF_VALUE (eg FILE or DIR)
string replace -r -- '(--[a-z_0-9-]+)=.*' '$1' $opt | read opt
else if string match -qr -- '--[a-z_0-9-]+=\S+' $opt
# --option=literal_value, leave as-is
else if string match -qr -- '--[a-z_0-9-]+$' $opt
# long option, leave as-is
else if string match -qr -- '-[^-]$' $opt
# short option, leave as-is
else
continue
end
echo "$opt"\t"$description" # parsed by `complete` as value and description
end
end
set line ""
end
end