export-build.sh

gehe zur Dokumentation dieser Datei

#!/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"
    # workaround for broken directory or file mode?
    find "$dest_platform_dir" -perm 655 -print0 | xargs -0 --no-run-if-empty chmod 755

    # 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