Watch littlefs cross-compiled thumb sizes easily

thumbsize.sh

#!/bin/bash

# some flags:
# -k - run in watch mode
# -d - show diff
# -c - cat (don't buffer)

set -eu -o pipefail


# run in watch mode?
if [[ "$@" == *-k* ]]
then
    ./scripts/watch.py \
        $([[ "$@" == *-c* ]] && echo -c || echo -n5) \
        -K lfs3.h -K lfs3_util.h \
        -K lfs3.c -K lfs3_util.c \
        $0 $(echo "$@" | sed 's/-k//')
    exit
fi


# compile for thumb
BUILDDIR=thumb \
CC='arm-linux-gnueabi-gcc -mthumb --static -Wno-stringop-overflow' \
CFLAGS='-DLFS3_NO_LOG -DLFS3_NO_ASSERT' \
make clean build \
    thumb/lfs3.code.csv \
    thumb/lfs3.data.csv \
    thumb/lfs3.stack.csv \
    thumb/lfs3.ctx.csv


# success?
if [ $? -eq 0 ]
then
    # keep last three builds
    cp thumb/liblfs3{.2,.3}.a || true
    cp thumb/lfs3{.2,.3}.o || true
    cp thumb/lfs3_util{.2,.3}.o || true
    cp thumb/lfs3{.2,.3}.ci || true
    cp thumb/lfs3_util{.2,.3}.ci || true
    cp thumb/lfs3.code{.2,.3}.csv || true
    cp thumb/lfs3.data{.2,.3}.csv || true
    cp thumb/lfs3.stack{.2,.3}.csv || true
    cp thumb/lfs3.ctx{.2,.3}.csv || true

    cp thumb/liblfs3{.1,.2}.a || true
    cp thumb/lfs3{.1,.2}.o || true
    cp thumb/lfs3_util{.1,.2}.o || true
    cp thumb/lfs3{.1,.2}.ci || true
    cp thumb/lfs3_util{.1,.2}.ci || true
    cp thumb/lfs3.code{.1,.2}.csv || true
    cp thumb/lfs3.data{.1,.2}.csv || true
    cp thumb/lfs3.stack{.1,.2}.csv || true
    cp thumb/lfs3.ctx{.1,.2}.csv || true

    cp thumb/liblfs3{,.1}.a
    cp thumb/lfs3{,.1}.o
    cp thumb/lfs3_util{,.1}.o
    cp thumb/lfs3{,.1}.ci
    cp thumb/lfs3_util{,.1}.ci
    cp thumb/lfs3.code{,.1}.csv
    cp thumb/lfs3.data{,.1}.csv
    cp thumb/lfs3.stack{,.1}.csv
    cp thumb/lfs3.ctx{,.1}.csv

    if git diff --exit-code --quiet
    then
        cp thumb/liblfs3{,.c}.a
        cp thumb/lfs3{,.c}.o
        cp thumb/lfs3_util{,.c}.o
        cp thumb/lfs3{,.c}.ci
        cp thumb/lfs3_util{,.c}.ci
        cp thumb/lfs3.code{,.c}.csv
        cp thumb/lfs3.data{,.c}.csv
        cp thumb/lfs3.stack{,.c}.csv
        cp thumb/lfs3.ctx{,.c}.csv
    fi

    ./scripts/csv.py \
        <(./scripts/csv.py \
            -bi=0 -bbuild='commit:' -o- \
            thumb/lfs3.code.c.csv -fcode=code_size \
            thumb/lfs3.data.c.csv -fdata=data_size \
            thumb/lfs3.stack.c.csv -fstack='max(stack_limit)' \
            thumb/lfs3.ctx.c.csv -fctx='max(ctx_size)' \
            || true) \
        <(./scripts/csv.py \
            -bi=1 -bbuild='prev~2:' -o- \
            thumb/lfs3.code.3.csv -fcode=code_size \
            thumb/lfs3.data.3.csv -fdata=data_size \
            thumb/lfs3.stack.3.csv -fstack='max(stack_limit)' \
            thumb/lfs3.ctx.3.csv -fctx='max(ctx_size)' \
            || true) \
        <(./scripts/csv.py \
            -bi=2 -bbuild='prev~1:' -o- \
            thumb/lfs3.code.2.csv -fcode=code_size \
            thumb/lfs3.data.2.csv -fdata=data_size \
            thumb/lfs3.stack.2.csv -fstack='max(stack_limit)' \
            thumb/lfs3.ctx.2.csv -fctx='max(ctx_size)' \
            || true) \
        <(./scripts/csv.py \
            -bi=3 -bbuild='current:' -o- \
            thumb/lfs3.code.csv -fcode=code_size \
            thumb/lfs3.data.csv -fdata=data_size \
            thumb/lfs3.stack.csv -fstack='max(stack_limit)' \
            thumb/lfs3.ctx.csv -fctx='max(ctx_size)' ) \
        -Si -bbuild -fcode -fdata -fstack -fctx -Q \
        $([[ "$@" == *-d* ]] && echo -ccommit:)
fi