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-rw-r--r--exp/Makefile38
-rwxr-xr-xexp/exp.sh30
2 files changed, 39 insertions, 29 deletions
diff --git a/exp/Makefile b/exp/Makefile
index 16d4b65..a5b4864 100644
--- a/exp/Makefile
+++ b/exp/Makefile
@@ -1,12 +1,15 @@
REPO_URL := https://club1.fr/~nicolas/git/dna-backup/
-REPO_PATH := repo
+export MAX_VERSION ?= 3
+export COMMITS ?= commits
+export BACKUP ?= backup
+export DIFFS ?= diffs
+
+export REPO_PATH ?= repo
GIT_PATH := git
GITC := git -C $(REPO_PATH)
-MAX_VERSION ?= 3
-
-DATADIRS := backup diffs
+DATADIRS := $(BACKUP) $(DIFFS)
SIZEFILES := $(DATADIRS:%=%-size)
.PHONY: all exp
@@ -27,10 +30,10 @@ backup-size: versions
cut -f1 $$i | paste -sd+ | bc >> $@; \
done
-diffs-size: diffs
+diffs-size: diffs run
find $< -type f -exec du -ba {} + | cut -f1 > $@
-versions: results backup
+versions: results
rm -rf $@
mkdir -p $@
for i in backup/*; do \
@@ -38,26 +41,29 @@ versions: results backup
grep $$i $< > $@/$$v ; \
done
-results: backup
+results: backup run
find $< -type f -exec du -ba {} + \
| grep -v hashes \
| sort -k2 \
> $@
-$(DATADIRS): commits ../dna-backup
- rm -rf $(DATADIRS)
- ./exp.sh $< $(REPO_PATH) $(MAX_VERSION) $(DATADIRS)
- touch $(DATADIRS)
+run: $(COMMITS) ../dna-backup | $(DATADIRS)
+ rm -rf $(DATADIRS:%=%/*)
+ ./exp.sh
+ touch $@
+
+backup diffs:
+ mkdir $@
../dna-backup: .FORCE
@$(MAKE) -C .. --no-print-directory dna-backup
-commits: | repo git
+$(COMMITS): | repo git
$(GITC) log --reverse --no-merges --pretty=tformat:"%H %as" \
| sort --unique --key=2 \
> $@
-repo git:
+repo git &:
git clone --separate-git-dir=$(GIT_PATH) $(REPO_URL) $(REPO_PATH)
# remove warning about detached head state
$(GITC) config advice.detachedHead false
@@ -65,10 +71,12 @@ repo git:
.PHONY: clean
clean: mostlyclean
rm -rf $(REPO_PATH) $(GIT_PATH)
- rm commits
+ rm -f $(COMMITS)
-mostlyclean:
+mostlyclean: resultsclean
rm -rf $(DATADIRS) versions
+
+resultsclean:
rm -f results summary.csv $(SIZEFILES)
.FORCE: ;
diff --git a/exp/exp.sh b/exp/exp.sh
index c031b94..9edf367 100755
--- a/exp/exp.sh
+++ b/exp/exp.sh
@@ -1,35 +1,37 @@
#!/bin/bash
-commits="$1"
-repo="$2"
-max_count="$3"
-backup="$4"
-diffs="$5"
+# This script expects the following variables to be exported:
+# - REPO_PATH: the path of the repo the experiment is based on
+# - MAX_VERSION: the max number for versions for the experiment
+# - COMMITS: the name of the file that contains the lists of versions
+# - BACKUP: the path fo the dna-backup dir
+# - DIFFS: the path of the git diff dir
-mkdir -p $backup $diffs
+GITC="git -C $REPO_PATH"
# "empty tree" commit
prev="4b825dc642cb6eb9a060e54bf8d69288fbee4904"
-last=$(tail --lines=1 "$commits" | cut -f1)
+last=$(tail --lines=1 $COMMITS | cut -f1)
i=0
-cat "$commits" | while read line
+cat $COMMITS | while read line
do
hash=$(echo "$line" | cut -f1)
- git -C "$repo" checkout "$hash"
+ $GITC checkout $hash
# create diff for this version
- git -C "$repo" diff --minimal --binary --unified=0 "$prev" | gzip > "$diffs/$i.diff.gz"
+ $GITC diff --minimal --binary --unified=0 $prev | gzip > $DIFFS/$i.diff.gz
# create backup for this version
- ../dna-backup commit -v 2 "$repo" "$backup"
+ ../dna-backup commit -v 2 $REPO_PATH $BACKUP
- prev="$hash"
+ prev=$hash
let i++
- if [[ $i == $max_count ]]
+ if [[ $i == $MAX_VERSION ]]
then
break
fi
done
-git -C "$repo" checkout "$last"
+# cleanup
+$GITC checkout $last