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: included from 6002 and others
mkdir -p .git/refs/tags
>sed.script
# Answer the sha1 has associated with the tag. The tag must exist in .git/refs/tags
tag () {
_tag=$1
test -f ".git/refs/tags/$_tag" || error "tag: \"$_tag\" does not exist"
cat ".git/refs/tags/$_tag"
}
# Generate a commit using the text specified to make it unique and the tree
# named by the tag specified.
unique_commit () {
_text=$1
_tree=$2
shift 2
echo "$_text" | git commit-tree $(tag "$_tree") "$@"
}
# Save the output of a command into the tag specified. Prepend
# a substitution script for the tag onto the front of sed.script
save_tag () {
_tag=$1
test -n "$_tag" || error "usage: save_tag tag commit-args ..."
shift 1
"$@" >".git/refs/tags/$_tag"
echo "s/$(tag $_tag)/$_tag/g" >sed.script.tmp
cat sed.script >>sed.script.tmp
rm sed.script
mv sed.script.tmp sed.script
}
# Replace unhelpful sha1 hashes with their symbolic equivalents
entag () {
sed -f sed.script
}
# Execute a command after first saving, then setting the GIT_AUTHOR_EMAIL
# tag to a specified value. Restore the original value on return.
as_author () {
_author=$1
shift 1
_save=$GIT_AUTHOR_EMAIL
GIT_AUTHOR_EMAIL="$_author"
export GIT_AUTHOR_EMAIL
"$@"
if test -z "$_save"
then
unset GIT_AUTHOR_EMAIL
else
GIT_AUTHOR_EMAIL="$_save"
export GIT_AUTHOR_EMAIL
fi
}
commit_date () {
_commit=$1
git cat-file commit $_commit |
sed -n "s/^committer .*> \([0-9]*\) .*/\1/p"
}
# Assign the value of fake date to a variable, but
# allow fairly common "1971-08-16 00:00" to be omittd
assign_fake_date () {
case "$2" in
??:??:??) eval "$1='1971-08-16 $2'" ;;
??:??) eval "$1='1971-08-16 00:$2'" ;;
??) eval "$1='1971-08-16 00:00:$2'" ;;
*) eval "$1='$2'" ;;
esac
}
on_committer_date () {
assign_fake_date GIT_COMMITTER_DATE "$1"
export GIT_COMMITTER_DATE
shift 1
"$@"
}
on_dates () {
assign_fake_date GIT_COMMITTER_DATE "$1"
assign_fake_date GIT_AUTHOR_DATE "$2"
export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
shift 2
"$@"
}
# Execute a command and suppress any error output.
hide_error () {
"$@" 2>/dev/null
}
check_output () {
_name=$1
shift 1
if eval "$*" | entag >"$_name.actual"
then
test_cmp "$_name.expected" "$_name.actual"
else
return 1
fi
}
# Turn a reasonable test description into a reasonable test name.
# All alphanums translated into -'s which are then compressed and stripped
# from front and back.
name_from_description () {
perl -pe '
s/[^A-Za-z0-9.]/-/g;
s/-+/-/g;
s/-$//;
s/^-//;
y/A-Z/a-z/;
'
}
# Execute the test described by the first argument, by eval'ing
# command line specified in the 2nd argument. Check the status code
# is zero and that the output matches the stream read from
# stdin.
test_output_expect_success()
{
_description=$1
_test=$2
test $# -eq 2 ||
error "usage: test_output_expect_success description test <<EOF ... EOF"
_name=$(echo $_description | name_from_description)
cat >"$_name.expected"
test_expect_success "$_description" "check_output $_name \"$_test\""
}