bug: Multiline string ENV var handling issue in shim logic (asdf v0.16.4) #1986
Description
Describe the Bug
Related to #1979
#1982 fixes the problem which truncated most multiline ENV, however there are still issues handling values containing particular content. For example, we currently drop all lines beginning-with-and-including lines ending in =, which breaks e.g. x509 certificates. Other characters may also trigger this behavior; I am not sure.
Steps to Reproduce
- create a multiline env var like the following:
export CERT="-----BEGIN CERTIFICATE-----
MANY\LINES\THE
LAST\ONE\ENDS\IN
AN=
-----END CERTIFICATE-----"
ruby -e "puts ENV['CERT']"
Expected Behaviour
Prints
-----BEGIN CERTIFICATE-----
MANY\LINES\THE
LAST\ONE\ENDS\IN
AN=
-----END CERTIFICATE-----
Actual Behaviour
Prints
-----BEGIN CERTIFICATE-----
MANY\LINES\THE
LAST\ONE\ENDS\IN
Environment
OS:
Darwin C02FC0QGMD6V 24.3.0 Darwin Kernel Version 24.3.0: Thu Jan 2 20:22:00 PST 2025; root:xnu-11215.81.4~3/RELEASE_X86_64 x86_64
SHELL:
zsh 5.9 (x86_64-apple-darwin24.0)
BASH VERSION:
3.2.57(1)-release
ASDF VERSION:
0.16.4
ASDF INTERNAL VARIABLES:
ASDF_DEFAULT_TOOL_VERSIONS_FILENAME=.tool-versions
ASDF_DATA_DIR=/Users/nate.eizenga/.asdf
ASDF_CONFIG_FILE=/Users/nate.eizenga/.asdfrc
ASDF INSTALLED PLUGINS:
python https://github.com/danhper/asdf-python.git a3a01856098d6d2b9642e382f5b38e70275726d1
ruby https://github.com/asdf-vm/asdf-ruby.git 2885ab7d311715ec4f6dfe2fc5dfed329fa1f263
rust https://github.com/code-lever/asdf-rust.git 95acf4fe65df1de74fca502482b8f3ac5af73c05
terraform https://github.com/asdf-community/asdf-hashicorp.git 22eb1c4a16adcde39aaaf89fbb5d9404a1601fceasdf plugins affected (if relevant)
No response