test-lib: teach test_seq the -f option
The "seq" tool has a "-f" option to produce printf-style formatted
lines. Let's teach our test_seq helper the same trick. This lets us get
rid of some shell loops in test snippets (which are particularly verbose
in our test suite because we have to "|| return 1" to keep the &&-chain
going).
This converts a few call-sites I found by grepping around the test
suite. A few notes on these:
- In "seq", the format specifier is a "%g" float. Since test_seq only
supports integers, I've kept the more natural "%d" (which is what
these call sites were using already).
- Like "seq", test_seq automatically adds a newline to the specified
format. This is what all callers are doing already except for t0021,
but there we do not care about the exact format. We are just trying
to printf a large number of bytes to a file. It's not worth
complicating other callers or adding an option to avoid the newline
in that caller.
- Most conversions are just replacing a shell loop (which does get rid
of an extra fork, since $() requires a subshell). In t0612 we can
replace an awk invocation, which I think makes the end result more
readable, as there's less quoting.
- In t7422 we can replace one loop, but sadly we have to leave the
loop directly above it. This is because that earlier loop wants to
include the seq value twice in the output, which test_seq does not
support (nor does regular seq). If you run:
test_seq -f "foo-%d %d" 10
the second "%d" will always be the empty string. You might naively
think that test_seq could add some extra arguments, like:
# 3 ought to be enough for anyone...
printf "$fmt\n" "$i "$i" $i"
but that just triggers printf to format multiple lines, one per
extra set of arguments.
So we'd have to actually parse the format string, figure out how
many "%" placeholders are there, and then feed it that many
instances of the sequence number. The complexity isn't worth it.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t0021-conversion.sh b/t/t0021-conversion.sh
index bf10d25..f0d50d7 100755
--- a/t/t0021-conversion.sh
+++ b/t/t0021-conversion.sh
@@ -281,7 +281,7 @@
test_expect_success 'filtering large input to small output should use little memory' '
test_config filter.devnull.clean "cat >/dev/null" &&
test_config filter.devnull.required true &&
- for i in $(test_seq 1 30); do printf "%1048576d" 1 || return 1; done >30MB &&
+ test_seq -f "%1048576d" 1 30 >30MB &&
echo "30MB filter=devnull" >.gitattributes &&
GIT_MMAP_LIMIT=1m GIT_ALLOC_LIMIT=1m git add 30MB
'
@@ -299,7 +299,7 @@
test_expect_success EXPENSIVE 'filter large file' '
test_config filter.largefile.smudge cat &&
test_config filter.largefile.clean cat &&
- for i in $(test_seq 1 2048); do printf "%1048576d" 1 || return 1; done >2GB &&
+ test_seq -f "%1048576d" 1 2048 >2GB &&
echo "2GB filter=largefile" >.gitattributes &&
git add 2GB 2>err &&
test_must_be_empty err &&
diff --git a/t/t0610-reftable-basics.sh b/t/t0610-reftable-basics.sh
index 1be534a..3ea5d51 100755
--- a/t/t0610-reftable-basics.sh
+++ b/t/t0610-reftable-basics.sh
@@ -477,11 +477,7 @@
test_commit --no-tag initial &&
head=$(git rev-parse HEAD) &&
- for i in $(test_seq 100)
- do
- printf "%s commit\trefs/heads/branch-%s\n" "$head" "$i" ||
- return 1
- done >expect &&
+ test_seq -f "$head commit\trefs/heads/branch-%d" 100 >expect &&
printf "%s commit\trefs/heads/main\n" "$head" >>expect &&
for i in $(test_seq 100)
diff --git a/t/t0612-reftable-jgit-compatibility.sh b/t/t0612-reftable-jgit-compatibility.sh
index d0d7e80..7df2ad5 100755
--- a/t/t0612-reftable-jgit-compatibility.sh
+++ b/t/t0612-reftable-jgit-compatibility.sh
@@ -112,14 +112,11 @@
cd repo &&
test_commit A &&
- awk "
- BEGIN {
- print \"start\";
- for (i = 0; i < 10000; i++)
- printf \"create refs/heads/branch-%d HEAD\n\", i;
- print \"commit\";
- }
- " >input &&
+ {
+ echo start &&
+ test_seq -f "create refs/heads/branch-%d HEAD" 10000 &&
+ echo commit
+ } >input &&
git update-ref --stdin <input &&
test_same_refs &&
diff --git a/t/t0613-reftable-write-options.sh b/t/t0613-reftable-write-options.sh
index 6447920..d77e601 100755
--- a/t/t0613-reftable-write-options.sh
+++ b/t/t0613-reftable-write-options.sh
@@ -66,11 +66,7 @@
(
cd repo &&
test_commit initial &&
- for i in $(test_seq 200)
- do
- printf "update refs/heads/branch-%d HEAD\n" "$i" ||
- return 1
- done >input &&
+ test_seq -f "update refs/heads/branch-%d HEAD" 200 >input &&
git update-ref --stdin <input &&
git pack-refs &&
@@ -180,11 +176,7 @@
(
cd repo &&
test_commit initial &&
- for i in $(test_seq 10)
- do
- printf "update refs/heads/branch-%d HEAD\n" "$i" ||
- return 1
- done >input &&
+ test_seq -f "update refs/heads/branch-%d HEAD" 10 >input &&
git update-ref --stdin <input &&
git -c reftable.restartInterval=1 pack-refs &&
@@ -224,11 +216,7 @@
(
cd repo &&
test_commit initial &&
- for i in $(test_seq 5)
- do
- printf "update refs/heads/branch-%d HEAD\n" "$i" ||
- return 1
- done >input &&
+ test_seq -f "update refs/heads/branch-%d HEAD" 5 >input &&
git update-ref --stdin <input &&
git -c reftable.blockSize=100 pack-refs &&
@@ -263,11 +251,7 @@
(
cd repo &&
test_commit initial &&
- for i in $(test_seq 5)
- do
- printf "update refs/heads/branch-%d HEAD\n" "$i" ||
- return 1
- done >input &&
+ test_seq -f "update refs/heads/branch-%d HEAD" 5 >input &&
git update-ref --stdin <input &&
git -c reftable.blockSize=100 -c reftable.indexObjects=false pack-refs &&
diff --git a/t/t1400-update-ref.sh b/t/t1400-update-ref.sh
index d29d23c..e373d91 100755
--- a/t/t1400-update-ref.sh
+++ b/t/t1400-update-ref.sh
@@ -1380,10 +1380,7 @@
test_expect_success ULIMIT_FILE_DESCRIPTORS 'large transaction creating branches does not burst open file limit' '
(
- for i in $(test_seq 33)
- do
- echo "create refs/heads/$i HEAD" || exit 1
- done >large_input &&
+ test_seq -f "create refs/heads/%d HEAD" 33 >large_input &&
run_with_limited_open_files git update-ref --stdin <large_input &&
git rev-parse --verify -q refs/heads/33
)
@@ -1391,10 +1388,7 @@
test_expect_success ULIMIT_FILE_DESCRIPTORS 'large transaction deleting branches does not burst open file limit' '
(
- for i in $(test_seq 33)
- do
- echo "delete refs/heads/$i HEAD" || exit 1
- done >large_input &&
+ test_seq -f "delete refs/heads/%d HEAD" 33 >large_input &&
run_with_limited_open_files git update-ref --stdin <large_input &&
test_must_fail git rev-parse --verify -q refs/heads/33
)
diff --git a/t/t5004-archive-corner-cases.sh b/t/t5004-archive-corner-cases.sh
index 5174995..027dedd 100755
--- a/t/t5004-archive-corner-cases.sh
+++ b/t/t5004-archive-corner-cases.sh
@@ -176,10 +176,7 @@
blob=$(echo $s | git hash-object -w --stdin) &&
# create tree containing 65500 entries of that blob
- for i in $(test_seq 1 65500)
- do
- echo "100644 blob $blob $i" || return 1
- done >tree &&
+ test_seq -f "100644 blob $blob\t%d" 1 65500 >tree &&
tree=$(git mktree <tree) &&
# zip it, creating an archive a bit bigger than 4GB
diff --git a/t/t6422-merge-rename-corner-cases.sh b/t/t6422-merge-rename-corner-cases.sh
index 9cbe7ca..f14c0fb 100755
--- a/t/t6422-merge-rename-corner-cases.sh
+++ b/t/t6422-merge-rename-corner-cases.sh
@@ -1146,10 +1146,7 @@
cd simple_${sideL}_${sideR} &&
# Create some related files now
- for i in $(test_seq 1 10)
- do
- echo Random base content line $i
- done >file_v1 &&
+ test_seq -f "Random base content line %d" 1 10 >file_v1 &&
cp file_v1 file_v2 &&
echo modification >>file_v2 &&
@@ -1293,10 +1290,7 @@
cd nested_conflicts_from_rename_rename &&
# Create some related files now
- for i in $(test_seq 1 10)
- do
- echo Random base content line $i
- done >file_v1 &&
+ test_seq -f "Random base content line %d" 1 10 >file_v1 &&
cp file_v1 file_v2 &&
cp file_v1 file_v3 &&
diff --git a/t/t7422-submodule-output.sh b/t/t7422-submodule-output.sh
index ea67057..aea1ddf 100755
--- a/t/t7422-submodule-output.sh
+++ b/t/t7422-submodule-output.sh
@@ -187,11 +187,7 @@
BLOB=$(git hash-object -w --stdin <gitmodules) &&
printf "100644 blob $BLOB\t.gitmodules\n" >tree &&
- for i in $(test_seq 2000)
- do
- printf "160000 commit $COMMIT\trecursive-submodule-path-%d\n" "$i" ||
- return 1
- done >>tree &&
+ test_seq -f "160000 commit $COMMIT\trecursive-submodule-path-%d" 2000 >>tree &&
TREE=$(git mktree <tree) &&
COMMIT=$(git commit-tree "$TREE") &&
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index bee4a2c..6230746 100644
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -1451,9 +1451,21 @@
# test_seq 1 5 -- outputs 1 2 3 4 5 one line at a time
#
# or with one argument (end), in which case it starts counting
-# from 1.
+# from 1. In addition to the start/end arguments, you can pass an optional
+# printf format. For example:
+#
+# test_seq -f "line %d" 1 5
+#
+# would print 5 lines, "line 1" through "line 5".
test_seq () {
+ local fmt="%d"
+ case "$1" in
+ -f)
+ fmt="$2"
+ shift 2
+ ;;
+ esac
case $# in
1) set 1 "$@" ;;
2) ;;
@@ -1462,7 +1474,7 @@
test_seq_counter__=$1
while test "$test_seq_counter__" -le "$2"
do
- echo "$test_seq_counter__"
+ printf "$fmt\n" "$test_seq_counter__"
test_seq_counter__=$(( $test_seq_counter__ + 1 ))
done
}
