clean image build

.gitignore

@@ -2,3 +2,4 @@
 *.zwc.old
 modules/*/cache.zsh
 contrib
+.container

Dockerfile

@@ -0,0 +1,18 @@
+FROM alpine as prezto-devel
+LABEL maintainer="h@hlo.mx"
+RUN apk --no-cache update && apk upgrade && \
+    apk add make grep zsh git
+RUN addgroup prezto && adduser -D prezto -G prezto -S /bin/zsh
+WORKDIR /home/prezto
+USER prezto
+RUN cd /home/prezto && mkdir src
+COPY . src
+RUN cp src/Makefile .
+RUN make .clone
+RUN make src .homercs
+# ENTRYPOINT ["/bin/zsh", "-"]
+CMD ["/bin/zsh","-l","-o","verbose","-o","xtrace","-o","sourcetrace"]
+
+
+
+

Makefile

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+#!/usr/bin/make shebang
+#                     _              ____             _
+#  _ __  _ __ ___ ___| |_ ___       |  _ \  ___   ___| | _____ _ __
+# | '_ \| '__/ _ \_  / __/ _ \ _____| | | |/ _ \ / __| |/ / _ \ '__|
+# | |_) | | |  __// /| || (_) |_____| |_| | (_) | (__|   <  __/ |
+# | .__/|_|  \___/___|\__\___/      |____/ \___/ \___|_|\_\___|_|
+# |_|
+# h@h-lo.me 20191025 004745 -0700 PDT 1571989665 d(-_- )b...
+# This makefile automates image building and container management
+# for easy development of prezto and prezto-plugins without messing
+# up your current configuration. Prezto is installed fresh on an
+# alpine container, where you may add your edits
+#
+#######################################################################
+# REPO and IMG define the TAG for our image. this is how it gets named
+# when pushed to dockerhum. REPO should be your dockerhub username
+# IMG would be nice if its related to the project.
+REPO       = hlecuanda
+IMG        = prezto-dev
+TAG        = $(REPO)/$(IMG)
+# ALLCODE recirds all code files so we can have the docker image
+# depend on all of them. if any file changes, the image gets rebuilt
+ALLCODE   != find . -type f | grep -vEe '^\./\.+|*.md'
+RUNCOMS   != ls runcoms
+# The context is the current directory. this is important if you have
+# a buildserver, v.gr on gitlab or google cloud. its still needed for
+# local builds. so don't touch this, unless you know what you're doing
+CONTEXT    = .
+# All reciipes on this makefile are zsh scripts, not bash or sh
+# scripts, so we don't have to be context-switching
+SHELL      = zsh
+# This removes the default build rules for gmake's built in suffixes
+# when debugging the Makefile, output is a lot more readable, plus
+# if you're not making C programs, it just makes sense to avoid
+# mistery bugs
+.SUFFIXES  =
+
+# We don't want to fail recipies on error for the targets if .IGNORE
+.IGNORE: clean realclean ;
+
+# These targets don't create files and are defined for convenience.
+# note that other targets do create real files which are used to
+# determine the state of the build
+.PHONY: default run clean realclean ;
+
+# an empty recipe, to avoid expensive operations if we "make" by
+# mistake. it can be made to depend on another target and it will
+# become the target of a "make" call with no arguments, vg.r:
+# default: image; results in "make"  and "make image" doing the same
+default: ;
+
+# a user callable target, depends on .container/image whiech records
+# the timestamp of the last successfuly built image
+image: .container/image ;
+
+# we declare .container/image to depend on $(ALLCODE) which contains
+# all files in the distribution. thus, if ANY file changes, it makes
+# our image obsolete and will be re-made on next make command
+.container/image: $(ALLCODE)
+	docker build -t $(TAG) $(CONTEXT)
+	[[ ! -d .container ]] && mkdir .container || :
+	touch $@
+
+# NOTE: The following targets ( .homercs clone and .clone ) are
+# run inside the container while building a container image. They are
+# called from the Dockerfile when you "make image". .homercs creates
+# the dotfiles on our home directory and depends on .clone, so .clone
+# should be made before .homercs. We're spelling these out explicitly
+# for clarity instead of using Makefile enchantments that would make
+# this a 2 line recipe
+.homercs: .clone
+	ln -s .zprezto/runcoms/zshenv /home/prezto/.zshenv
+	ln -s .zprezto/runcoms/zprofile /home/prezto/.zprofile
+	ln -s .zprezto/runcoms/zshrc /home/prezto/.zshrc
+	ln -s .zprezto/runcoms/zlogin /home/prezto/.zlogin
+	ln -s .zprezto/runcoms/zlogout /home/prezto/.zlogout
+	touch $@
+
+# clones the prezto repository we have copied from the build context
+# into the container, into a .zprezto directory, as the installation
+# instructions recommend.
+.clone:
+	git clone --recursive src .zprezto
+	touch $@
+
+# This runs an interactive (-it) ephemeral (--rm) container named
+# $(IMG) created from the image stored at $(TAG) it is made to depend
+# on container/image so that it checks whether image is up to # date.
+# Given that image depends on $(ALLCODE), calling "make run" will use
+# the latest image, unless any code file hasa changed in which case,
+# the image is rebuilt and then run.
+run: .container/image
+	docker run -it --rm -h $(IMG) --name $(IMG) $(TAG)
+
+# Removes the current container and image, so we can build a new one
+# from scratch. If you want a real clean slate, then "make realclean"
+clean:
+	docker container rm $(TAG):
+	docker image rm $(TAG):
+
+# Deep cleaning, will remove dangling (intermediate build) images
+# and containers for which a final image or container cannot be found
+# (i.e has been deleted by clean or removed after usage for ephemeral
+# containers. Run every once in a while.
+realclean:
+	$(MAKE) clean
+	docker container prune
+	docker image prune
+
+# vim: set ft=make sw=2 tw=7 fdm=manual noet :