tvl-depot/third_party/git/t/lib-t6000.sh
Vincent Ambo f4609b896f merge(3p/git): Merge git subtree at v2.29.2
This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because
there is some breakage in the git build related to the netrc
credentials helper which someone has taken care of in nixpkgs.

The stable channel is not used for anything other than git, so this
should be fine.

Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb
2020-11-21 19:45:56 +01:00

136 lines
2.9 KiB
Bash

: included from 6002 and others
>sed.script
# Answer the sha1 has associated with the tag. The tag must exist under refs/tags
tag () {
_tag=$1
git rev-parse --verify "refs/tags/$_tag" ||
error "tag: \"$_tag\" does not exist"
}
# 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 update-ref "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\""
}