Fix unquoting of variables

- Fix trimming of matching quote (no star after \1 reference)
- Only trim a single quote (turn any-match into optional match)

Author: das7pad

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## 2024-08-20
+### Fixed
+- Fix unquoting of variables (e.g. `ALL_TEX_LIVE_DOCKER_IMAGES`)
+
 ## 2024-08-13
 ### Added
 - Updated default [`version`](https://github.com/overleaf/toolkit/blob/master/lib/config-seed/version) to `5.1.1`.

lib/shared-functions.sh

@@ -180,11 +180,11 @@ function check_sharelatex_env_vars() {
 function read_variable() {
   local name=$1
   grep -E "^$name=" "$TOOLKIT_ROOT/config/variables.env" \
-  | sed -r "s/^$name=([\"']*)(.+)\1*\$/\2/"
+  | sed -r "s/^$name=([\"']?)(.+)\1\$/\2/"
 }
 
 function read_configuration() {
   local name=$1
   grep -E "^$name=" "$TOOLKIT_ROOT/config/overleaf.rc" \
-  | sed -r "s/^$name=([\"']*)(.+)\1*\$/\2/"
+  | sed -r "s/^$name=([\"']?)(.+)\1\$/\2/"
 }