0.5.1/doc/export-build_8sh_source.html

#!/bin/bash


#

# Opennet trac-bitten-slave Scripts

# Mathias Mahnke, created 2014/05/05

# Opennet Admin Group <admin@opennet-initiative.de>

#


# stop on error and unset variables

set -eu


# get config file name

FILE="$(basename "$0")"

CFG="${FILE%.*}.cfg"


# get current script dir

HOME="$(dirname $(readlink -f "$0"))"

OPENWRT_CONFIG="${HOME}/../../../openwrt/.config"


# read variables

. "$HOME/$CFG"


# retrieve commands

action="${1:-help}"


get_snapshot_name() {

    grep "^CONFIG_VERSION_NUMBER=" "$OPENWRT_CONFIG" | cut -f 2 -d '"'

}


get_commit_info() {

    # kurze Uebersicht aller commits des aktuellen Builds inkl. eines Commit-Zaehlers

    git log --oneline | sed -n '1!G;h;$p' | nl | tac

}


build_platform() {

    local platform="$1"

    local snapshot_name=$(get_snapshot_name)

    [ -z "$snapshot_name" ] && return 1


    # prepare export directory

    local dest_dir="$HOME/$EXPORT_DIR/$snapshot_name"

    local dest_platform_dir="$dest_dir/$platform"

    mkdir -p "$dest_platform_dir"


    # copy build to export directory

    local src_dir="$HOME/$BIN_DIR/$platform"

    rsync $RSYNC_OPTIONS "$src_dir/" "$dest_platform_dir/"


    # set version number in export directories

    get_commit_info > "$dest_dir/__${snapshot_name}__"

    get_commit_info > "$dest_platform_dir/__${snapshot_name}__"


    # generate latest link

    rm -f "$HOME/$EXPORT_DIR/$LATEST_LINK"

    (cd "$HOME/$EXPORT_DIR" && ln -s "$snapshot_name" "$LATEST_LINK")

}


export_doc() {

    local snapshot_name=$(get_snapshot_name)

    [ -z "$snapshot_name" ] && return 1

    local dest_dir="$HOME/$EXPORT_DIR/$snapshot_name/doc"

    mkdir -p "$dest_dir"

    local src_dir="$HOME/$DOC_DIR"

    echo "Copying documentation: $src_dir -> $dest_dir"

    rsync $RSYNC_OPTIONS "$src_dir/" "$dest_dir/"

}


purge_old_exports() {

    local keep_builds="$1"

    cd "$HOME/$EXPORT_DIR"

    # "uniq -u" entfernt doppelte Zeilen - also verbleiben nur die alten Dateien

    (

        ls -t | head -n "$keep_builds"

        ls

    ) | sort | uniq -u | xargs --delimiter '\n' --no-run-if-empty rm -r

}


# process commands

case "$action" in

    help|--help)

        echo "Usage: $(basename "$0")"

        echo "  [<platform>]            - export build"

        echo "  --doc               - generate documentation"

        echo "  --purge <keep-number-of-dirs>   - purge old exports"

        exit 0

        ;;

    doc|--doc)

        export_doc

        ;;

    purge|--purge)

        keep_builds=${2:-}

        [ -z "$keep_builds" ] && echo >&2 "No number of non-purgeable builds given" && exit 2

        echo "$keep_builds" | grep -q "[^0-9]" && echo >&2 "Number of non-purgeable builds contains non-digits: '$keep_builds'" && exit 3

        [ "$keep_builds" -lt 1 ] && echo >&2 "Number of non-purgeable builds is too low: '$keep_builds'" && exit 4

        purge_old_exports "$keep_builds"

        ;;

    *)

        build_platform "$action"

        ;;

esac


exit 0