Bash completion file for FAKE build scripts (build.fsx)

build-sh

# bash completion for FAKE build.sh scripts
# Assumes that your FAKE build script is named build.fsx
# Put this file in /etc/bash_completion.d/ and start a new terminal to activate it

_build_sh()
{
    local cur base dir
    cur="${COMP_WORDS[COMP_CWORD]}"
    base="${COMP_WORDS[0]}"
    dir=$(dirname "${base}")

    if [ -e "${dir}/build.fsx" ]; then
        BUILD_FSX="${dir}/build.fsx"
    elif [ -e "${dir}/build/build.fsx" ]; then
        BUILD_FSX="${dir}/build/build.fsx"
    elif [ -e "${dir}/Build/build.fsx" ]; then
        BUILD_FSX="${dir}/Build/build.fsx"
    else
        BUILD_FSX=$(find ${dir} -name build.fsx)
    fi

    if [ -z "${BUILD_FSX}" ]; then
        COMPREPLY=()
    else
        OLDIFS="$IFS"
        IFS=$'\n'
        RESULTS=$(grep -o 'Target ".*"' "${BUILD_FSX}" | cut -d'"' -f2)
        COMPREPLY=($(compgen -W "${RESULTS}" -- $cur))
        IFS="$OLDIFS"
    fi
}

complete -F _build_sh build.sh

note that for FAKE 5 targets the regex needs to be changed to grep -o 'Target.create ".*"' "${BUILD_FSX}", since it's now a factory function instead of a constructor.