github-build-bin-readme

#!/usr/bin/env bash
#
# Build README.md in github.com/D630/bin.

cd -- /home/stow/bin/bin ||
    exit 1

IFS=.: read -r _ _ p _ _ < <(exec -- git config --local --get remote.origin.url)
P=https://github.com/$p

export LC_ALL=C

__find() {
    # find . -maxdepth 1 -regextype posix-egrep \
    #         \( -path "./.*" -o -name README.md \) \
    #         -prune \
    #         -o \( -type f -a -regex "\./.*\.(awk|py|sh)" \) \
    #         -exec grep -H -m 1 '^# ' {} +;
    # git ls-files -z '*.awk' '*.py' '*.sh' \
    # | xargs -0 grep -H -m 1 '^# ';

    exec -- git ls-files -z '[!A][!R]*' |
        exec -- xargs -0 -- grep -E -Z -l -m 1 '^#!.*(awk|[bdtm][ack]sh|python|sh|perl).*' |
        command -- xargs -0 -- grep -H -m 1 '^# '

    # find . -maxdepth 1 \
    #         \( -path "./.*" -o -name README.md \) \
    #         -prune \
    #         -o \( -type f -a -name "*.php" \) \
    #         -exec grep -H -m 1 '// ' {} + \
    # | sed 's/    \/\//#/';
    # git ls-files -z '*.php' \
    # | xargs -0 grep -H -m 1 '// ' \
    # | sed 's/    \/\//#/';

    exec -- git ls-files -z '[!A][!R]*' |
        exec -- xargs -0 -- grep -E -Z -l -m 1 '^#!.*php.*' |
        exec -- xargs -0 -- grep -H -m 1 '// ' |
        exec -- sed 's:[[:space:]]*//:#:'
}

{
    header=$(</dev/fd/0)
} <<HEADER
Short scripts, which do not belong to my dotfiles. Unless otherwise stated,
these files are in the public domain.

List:

HEADER

__find |
    exec -- sort |
    {
        printf %s\\n "$header"
        while IFS=: read -r p c; do
            printf '* [%s](%s/blob/master/%s): %s\n' \
                "${p#./}" "$P" "${p#./}" "${c#\# }"
        done
    } >./README.md

# vim: set ft=zsh :