The Git CodingGuidelines prefer the $( ... ) construct for command
substitution instead of using the back-quotes, or grave accents (`..`).
The backquoted form is the historical method for command substitution,
and is supported by POSIX. However,all but the simplest uses become
complicated quickly. In particular,embedded command substitutions
and/or the use of double quotes require careful escaping with the backslash
character. Because of this the POSIX shell adopted the $(…) feature from
the Korn shell.
Signed-off-by: Elia Pinto <gitter.spiros@xxxxxxxxx>
---
t/t5302-pack-index.sh | 34 +++++++++++++++++-----------------
1 file changed, 17 insertions(+), 17 deletions(-)
diff --git a/t/t5302-pack-index.sh b/t/t5302-pack-index.sh
index 4bbb718..442ee5c 100755
--- a/t/t5302-pack-index.sh
+++ b/t/t5302-pack-index.sh
@@ -14,21 +14,21 @@ test_expect_success \
i=1 &&
while test $i -le 100
do
- iii=`printf '%03i' $i`
+ iii=$(printf '%03i' $i)
test-genrandom "bar" 200 > wide_delta_$iii &&
test-genrandom "baz $iii" 50 >> wide_delta_$iii &&
test-genrandom "foo"$i 100 > deep_delta_$iii &&
- test-genrandom "foo"`expr $i + 1` 100 >> deep_delta_$iii &&
- test-genrandom "foo"`expr $i + 2` 100 >> deep_delta_$iii &&
+ test-genrandom "foo"$(expr $i + 1) 100 >> deep_delta_$iii &&
+ test-genrandom "foo"$(expr $i + 2) 100 >> deep_delta_$iii &&
echo $iii >file_$iii &&
test-genrandom "$iii" 8192 >>file_$iii &&
git update-index --add file_$iii deep_delta_$iii wide_delta_$iii &&
- i=`expr $i + 1` || return 1
+ i=$(expr $i + 1) || return 1
done &&
{ echo 101 && test-genrandom 100 8192; } >file_101 &&
git update-index --add file_101 &&
- tree=`git write-tree` &&
- commit=`git commit-tree $tree </dev/null` && {
+ tree=$(git write-tree) &&
+ commit=$(git commit-tree $tree </dev/null) && {
echo $tree &&
git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/"
} >obj-list &&
@@ -152,10 +152,10 @@ test_expect_success \
'[index v1] 2) create a stealth corruption in a delta base reference' \
'# This test assumes file_101 is a delta smaller than 16 bytes.
# It should be against file_100 but we substitute its base for file_099
- sha1_101=`git hash-object file_101` &&
- sha1_099=`git hash-object file_099` &&
- offs_101=`index_obj_offset 1.idx $sha1_101` &&
- nr_099=`index_obj_nr 1.idx $sha1_099` &&
+ sha1_101=$(git hash-object file_101) &&
+ sha1_099=$(git hash-object file_099) &&
+ offs_101=$(index_obj_offset 1.idx $sha1_101) &&
+ nr_099=$(index_obj_nr 1.idx $sha1_099) &&
chmod +w ".git/objects/pack/pack-${pack1}.pack" &&
dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($offs_101 + 1)) \
if=".git/objects/pack/pack-${pack1}.idx" \
@@ -193,10 +193,10 @@ test_expect_success \
'[index v2] 2) create a stealth corruption in a delta base reference' \
'# This test assumes file_101 is a delta smaller than 16 bytes.
# It should be against file_100 but we substitute its base for file_099
- sha1_101=`git hash-object file_101` &&
- sha1_099=`git hash-object file_099` &&
- offs_101=`index_obj_offset 1.idx $sha1_101` &&
- nr_099=`index_obj_nr 1.idx $sha1_099` &&
+ sha1_101=$(git hash-object file_101) &&
+ sha1_099=$(git hash-object file_099) &&
+ offs_101=$(index_obj_offset 1.idx $sha1_101) &&
+ nr_099=$(index_obj_nr 1.idx $sha1_099) &&
chmod +w ".git/objects/pack/pack-${pack1}.pack" &&
dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($offs_101 + 1)) \
if=".git/objects/pack/pack-${pack1}.idx" \
@@ -222,11 +222,11 @@ test_expect_success \
'rm -f .git/objects/pack/* &&
git index-pack --index-version=2 --stdin < "test-1-${pack1}.pack" &&
git verify-pack ".git/objects/pack/pack-${pack1}.pack" &&
- obj=`git hash-object file_001` &&
- nr=`index_obj_nr ".git/objects/pack/pack-${pack1}.idx" $obj` &&
+ obj=$(git hash-object file_001) &&
+ nr=$(index_obj_nr ".git/objects/pack/pack-${pack1}.idx" $obj) &&
chmod +w ".git/objects/pack/pack-${pack1}.idx" &&
printf xxxx | dd of=".git/objects/pack/pack-${pack1}.idx" conv=notrunc \
- bs=1 count=4 seek=$((8 + 256 * 4 + `wc -l <obj-list` * 20 + $nr * 4)) &&
+ bs=1 count=4 seek=$((8 + 256 * 4 + $(wc -l <obj-list) * 20 + $nr * 4)) &&
( while read obj
do git cat-file -p $obj >/dev/null || exit 1
done <obj-list ) &&
--
1.7.10.4
--
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