Make x capable of resolving symlinks

When bootstrapping from outside of the rust source, instead of calling 'x' from the absolute path (like /home/user/rust/x), we should be able to link 'x' from the rust source to binary paths so it can be used easily. Before this change, 'x' was not capable of finding 'x.py' when called from the linked file. Signed-off-by: onur-ozkan <[email protected]>
rust-lang · Oct 14, 2023 · e0fe1d6 · e0fe1d6
1 parent 39acbed
commit e0fe1d6
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/x b/x
@@ -11,10 +11,13 @@ set -eu
 sh -n "$0"
 
 realpath() {
-    if [ -d "$1" ]; then
-        CDPATH='' command cd "$1" && pwd -P
+    local path="$1"
+    if [ -L "$path" ]; then
+        readlink -f "$path"
+    elif [ -d "$path" ]; then
+        (cd -P "$path" && pwd)
     else
-        echo "$(realpath "$(dirname "$1")")/$(basename "$1")"
+        echo "$(realpath "$(dirname "$path")")/$(basename "$path")"
     fi
 }