Add Bash/Zsh compatibility comment to Spin environment file

tomstuart · tomstuart · commit 94cb39bb5b57 · 2021-06-09T18:08:22.000+01:00
The syntax is a little convoluted here, so this extra inline information
might be useful to someone trying to debug or change it in the future.
diff --git a/.spin/bin/env b/.spin/bin/env
@@ -1,3 +1,4 @@
+# $BASH_SOURCE[0] is for Bash, ${(%):-%x} is for Zsh
 SCRIPT_PATH=$(dirname "${BASH_SOURCE[0]:-${(%):-%x}}")
 SCRIPT_PATH=$(cd "$SCRIPT_PATH" && pwd)
 TRUFFLERUBY_DIR=$SCRIPT_PATH/../..

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+# $BASH_SOURCE[0] is for Bash, ${(%):-%x} is for Zsh`
`1`	`2`	`SCRIPT_PATH=$(dirname "${BASH_SOURCE[0]:-${(%):-%x}}")`
`2`	`3`	`SCRIPT_PATH=$(cd "$SCRIPT_PATH" && pwd)`
`3`	`4`	`TRUFFLERUBY_DIR=$SCRIPT_PATH/../..`