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REPO_URL := https://club1.fr/~nicolas/git/dna-backup/
export MAX_VERSION ?= 3
export LO_DEV ?= /dev/loop0
export COMMITS ?= commits
export BACKUP ?= backup
export DIFFS ?= diffs
export UDF ?= udf
export REPO_PATH ?= repo
GIT_PATH := git
GITC := git -C $(REPO_PATH)
DATADIRS := $(BACKUP) $(DIFFS) $(UDF)
SIZEFILES := $(DATADIRS:%=%-size)
.PHONY: all exp
all exp: summary.csv $(SIZEFILES)
@echo "============== SUMMARY =============="
@cat $< | tr ',' '\t'
@echo "============== TOTAL =============="
@for i in $(SIZEFILES); do cat $$i | paste -sd+ | bc; done | tr '\n' '\t'
@echo
summary.csv: $(SIZEFILES)
echo $(DATADIRS) | tr ' ' ',' > $@
paste -d "," $^ >> $@
backup-size: versions
rm -rf $@
for i in $</*; do \
cut -f1 $$i | paste -sd+ | bc >> $@; \
done
diffs-size: diffs run
find $< -type f -exec du -ba {} + | cut -f1 > $@
udf-size: udf run
du -b $< | cut -f1 > $@
versions: results
rm -rf $@
mkdir -p $@
for i in backup/*; do \
v=`echo $$i | cut -d / -f2`; \
grep $$i $< > $@/$$v ; \
done
results: backup run
find $< -type f -exec du -ba {} + \
| grep -v hashes \
| sort -k2 \
> $@
run: commits ../dna-backup | $(DATADIRS)
rm -rf $(DATADIRS:%=%/*)
./exp.sh
touch $@
backup diffs:
mkdir $@
udf: | udffile.img
mkdir $@
sudo mount -t udf $(LO_DEV) $@
sudo chown $$USER:$$USER $@
udffile.img:
dd if=/dev/zero of=$@ bs=100M count=10
sudo losetup $(LO_DEV) $@
sudo cdrwtool -d $(LO_DEV) -q
sudo mkfs -t udf --media-type=dvdrw $(LO_DEV)
../dna-backup: .FORCE
@$(MAKE) -C .. --no-print-directory dna-backup
commits: | repo git
$(GITC) log --reverse --no-merges --pretty=tformat:"%H %as" \
| sort --unique --key=2 \
> $@
repo git &:
git clone --separate-git-dir=$(GIT_PATH) $(REPO_URL) $(REPO_PATH)
# remove warning about detached head state
$(GITC) config advice.detachedHead false
.PHONY: clean
clean: mostlyclean
rm -rf $(REPO_PATH) $(GIT_PATH)
rm -f commits
mostlyclean: resultsclean
-sudo umount -fqd udf
-sudo losetup -d $(LO_DEV)
rm -rf $(DATADIRS) versions
rm -f udffile.img run
resultsclean:
rm -f results summary.csv $(SIZEFILES)
.FORCE: ;
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