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add support for rbenv shell -

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`rbenv shell -` allows you to switch to the previously activated ruby
version.  Similar to `cd -` or `git checkout -`.

This tries to implement `rbenv shell -` as proposed in #854.  However,
adding support seemed to break the "shell change version" test.  I'm not
very good at Bash programming, can someone tell me what is wrong with
what I'm doing?  I'd like to add a bit more functionality to this, but
I'm really just cargo cult programming Bash.

Thank you!

fix tests
This commit is contained in:
Aaron Patterson 2016-01-12 11:03:50 -08:00
parent c38833179b
commit 6a912bf104
2 changed files with 87 additions and 11 deletions
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25
libexec/rbenv-sh-shell
View file

@ -39,25 +39,50 @@ fi
if [ "$version" = "--unset" ]; then
case "$shell" in
fish )
echo "set -e OLD_RBENV_VERSION"
echo "set -e RBENV_VERSION"
;;
* )
echo "unset OLD_RBENV_VERSION"
echo "unset RBENV_VERSION"
;;
esac
exit
fi
if [ "$version" = "-" ]; then
if [ -z "$OLD_RBENV_VERSION" ]; then
echo "rbenv: OLD_RBENV_VERSION not set" >&2
exit 1;
fi
case "$shell" in
fish )
rbenv_version=$RBENV_VERSION
echo "set -e OLD_RBENV_VERSION \"$rbenv_version\""
echo "set -e RBENV_VERSION \"$OLD_RBENV_VERSION\""
;;
* )
rbenv_version=$RBENV_VERSION
echo "export OLD_RBENV_VERSION=\"$rbenv_version\""
echo "export RBENV_VERSION=\"$OLD_RBENV_VERSION\""
;;
esac
exit
fi
# Make sure the specified version is installed.
if rbenv-prefix "$version" >/dev/null; then
if [ "$version" != "$RBENV_VERSION" ]; then
case "$shell" in
fish )
echo "setenv RBENV_VERSION \"${version}\""
;;
* )
echo "export OLD_RBENV_VERSION=\"$RBENV_VERSION\""
echo "export RBENV_VERSION=\"${version}\""
;;
esac
fi
else
echo "false"
exit 1

57
test/shell.bats
View file

@ -22,12 +22,18 @@ load test_helper
@test "shell unset" {
RBENV_SHELL=bash run rbenv-sh-shell --unset
assert_success "unset RBENV_VERSION"
assert_output <<OUT
unset OLD_RBENV_VERSION
unset RBENV_VERSION
OUT
}
@test "shell unset (fish)" {
RBENV_SHELL=fish run rbenv-sh-shell --unset
assert_success "set -e RBENV_VERSION"
assert_output <<OUT
set -e OLD_RBENV_VERSION
set -e RBENV_VERSION
OUT
}
@test "shell change invalid version" {
@ -42,7 +48,52 @@ SH
@test "shell change version" {
mkdir -p "${RBENV_ROOT}/versions/1.2.3"
RBENV_SHELL=bash run rbenv-sh-shell 1.2.3
assert_success 'export RBENV_VERSION="1.2.3"'
assert_output <<OUT
export OLD_RBENV_VERSION=""
export RBENV_VERSION="1.2.3"
OUT
}
@test "shell change version pushes away previous OLD_RBENV_VERSION" {
mkdir -p "${RBENV_ROOT}/versions/1.2.3"
mkdir -p "${RBENV_ROOT}/versions/1.2.4"
mkdir -p "${RBENV_ROOT}/versions/1.2.5"
export OLD_RBENV_VERSION="1.2.3"
export RBENV_VERSION="1.2.4"
RBENV_SHELL=bash run rbenv-sh-shell 1.2.5
assert_output <<OUT
export OLD_RBENV_VERSION="1.2.4"
export RBENV_VERSION="1.2.5"
OUT
}
@test "shell change version to the same version does not lose OLD_RBENV_VERSION" {
mkdir -p "${RBENV_ROOT}/versions/1.2.3"
mkdir -p "${RBENV_ROOT}/versions/1.2.4"
export OLD_RBENV_VERSION="1.2.3"
export RBENV_VERSION="1.2.4"
RBENV_SHELL=bash run rbenv-sh-shell 1.2.4
assert_output ''
}
@test "shell change version to - swaps old and new versions" {
mkdir -p "${RBENV_ROOT}/versions/1.2.3"
mkdir -p "${RBENV_ROOT}/versions/1.2.4"
export OLD_RBENV_VERSION="1.2.3"
export RBENV_VERSION="1.2.4"
RBENV_SHELL=bash run rbenv-sh-shell -
assert_output <<OUT
export OLD_RBENV_VERSION="1.2.4"
export RBENV_VERSION="1.2.3"
OUT
}
@test "shell change version to - with no previous is an error" {
mkdir -p "${RBENV_ROOT}/versions/1.2.3"
RBENV_SHELL=bash run rbenv-sh-shell -
assert_failure <<OUT
rbenv: OLD_RBENV_VERSION not set
OUT
}
@test "shell change version (fish)" {