create-django-app-with-image-field.sh

#!/usr/bin/env bash
set -eu

# USAGE: ./create-django-app-with-image-field.sh django-app-1
# NOTE. it does rm -rf django-app-1
NAME=$1
# DJANGO_VER=1.11
DJANGO_VER=1.7
PATH_TO_REPO=/path/to/imagekit/repository

ignore_errors() {
    set +eu
    "$@"
    set -eu
}

rm -rf "$NAME"
if [ "$DJANGO_VER" = 1.7 ]; then
    python3.4 -m venv "$NAME"
else
    python -m venv "$NAME"
fi
cd "$NAME"
ignore_errors . bin/activate
pip install django==$DJANGO_VER pillow file://$PATH_TO_REPO
django-admin startproject "$NAME"
cd "$NAME"
./manage.py startapp a1
git init
git add *
git commit -m 'Initial commit'
mkdir -p a1/templates/a1

echo '<img src="{{ img.f1_thumb.url }}">' \
    > a1/templates/a1/index.html

echo 'from imagekit.models import ImageSpecField
from imagekit.processors import ResizeToFill

class Model1(models.Model):
    f1 = models.ImageField()
    f1_thumb = ImageSpecField(source="f1",
                              processors=[ResizeToFill(50, 50)])' \
    >> a1/models.py

echo 'from .models import Model1

def t1(request):
    return render(request, "a1/index.html", {
        "img": Model1.objects.first()
    })' \
    >> a1/views.py

if [ "$DJANGO_VER" = 1.7 ]; then
    echo 'INSTALLED_APPS += ("imagekit",)
INSTALLED_APPS += ("a1",)' \
        >> "$NAME/settings.py"
else
    echo 'INSTALLED_APPS += ["imagekit"]
INSTALLED_APPS += ["a1"]' \
        >> "$NAME/settings.py"
fi
echo 'MEDIA_ROOT = os.path.join(BASE_DIR, "media")
MEDIA_URL = "/media/"' \
    >> "$NAME/settings.py"

echo 'from django.conf import settings
from django.conf.urls.static import static
import a1.views
urlpatterns += [url(r"^t1$", a1.views.t1)]
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)' \
    >> "$NAME/urls.py"

./manage.py makemigrations
./manage.py migrate
curl -sSLo 1.png http://placehold.it/100x100

echo '#!/usr/bin/env python
import os
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "'"$NAME"'.settings")
import django
django.setup()
from a1.models import Model1
from django.core.files.images import ImageFile
Model1.objects.all().delete()
m = Model1.objects.create()
m.f1 = ImageFile(open("1.png", "rb"))
m.save()' \
    > init.py
chmod u+x init.py
./init.py

# ./manage.py runserver 8001
find media -type f -exec file {} \;
./manage.py generateimages imagekit:thumbnail \
    | sed -E 's/^/  > /'
find media -type f -exec file {} \;
./manage.py generateimages a1:model1:f1_thumb \
    | sed -E 's/^/  > /'
find media -type f -exec file {} \;