🐛 Run npm link in package directory

Author: hacker-DOM

adoc_math/_common/a_imports.py

@@ -30,3 +30,4 @@
 import pprint
 import xml.dom.minidom
 import random
+import contextlib

adoc_math/_common/e_utils.py

@@ -87,3 +87,16 @@ def join_with(
     """Reverses the arguments of x.join(y)"""
 
     return joiner.join(it)
+
+
+@contextlib.contextmanager
+def change_cwd(path: Union[plib.Path, str]):
+    """
+    Temporary change the current working directory to the path provided as the first argument.
+    """
+    orig_cwd = plib.Path.cwd().resolve()
+    try:
+        os.chdir(plib.Path(path).resolve())
+        yield
+    finally:
+        os.chdir(orig_cwd)

adoc_math/_setup/b_link.py

@@ -3,7 +3,9 @@
 
 class Link:
     def run(s):
-        run_cmd(cmd=Command("npm link mathjax@3"))
+        install_dir = plib.Path(__file__).parent.parent.parent
+        with change_cwd(install_dir):
+            run_cmd(cmd=Command("npm link mathjax@3"))
 
 
 def main():