From 64bbc3ce48ba8c0fea77a86781b21d7e60c70923 Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Thu, 31 Oct 2019 17:26:31 -0400
Subject: [PATCH] Use python instead of bash for the replace and rename
 operation

---
 README.md                   |  4 ++--
 share/replace_and_rename.py | 45 +++++++++++++++++++++++++++++++++++++
 share/replace_and_rename.sh | 30 -------------------------
 3 files changed, 47 insertions(+), 32 deletions(-)
 create mode 100755 share/replace_and_rename.py
 delete mode 100755 share/replace_and_rename.sh

diff --git a/README.md b/README.md
index 62eff3ca..67c9f481 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ To adapt this skeleton for a new TRIQS application, the following steps are nece
 git clone https://github.com/triqs/app4triqs --branch unstable appname
 cd appname
 ./share/squash_history.sh
-./share/replace_and_rename.sh appname
+./share/replace_and_rename.py appname
 git add -A && git commit -m "Adjust app4triqs skeleton for appname"
 ```
 
@@ -43,7 +43,7 @@ If you should encounter any conflicts resolve them and `git commit`.
 Finally we repeat the replace and rename command from the initial setup.
 
 ```bash
-./share/replace_and_rename.sh appname
+./share/replace_and_rename.py appname
 git commit --amend
 ```
 
diff --git a/share/replace_and_rename.py b/share/replace_and_rename.py
new file mode 100755
index 00000000..1d9eecb7
--- /dev/null
+++ b/share/replace_and_rename.py
@@ -0,0 +1,45 @@
+#!/usr/bin/env python
+
+import sys
+import os
+import glob
+
+if len(sys.argv) != 2:
+    print "Please pass the application name"
+    sys.exit()
+
+app_name = str(sys.argv[1]).lower()
+capital_name = app_name.upper()
+
+# Move app4triqs directories if necessary
+if os.path.isdir("c++/app4triqs"): os.rename("c++/app4triqs", "c++/" + app_name)
+if os.path.isdir("python/app4triqs"): os.rename("python/app4triqs", "python/" + app_name)
+
+# Ignore these files
+ignore_lst = [".git/", "replace_and_rename.py", "squash_history.sh"]
+
+# Find the root directory of app4triqs
+app4triqs_root = os.path.abspath(os.path.dirname(__file__) + "/..")
+
+# Recurse over all subdirectories and files
+for root, dirs, files in os.walk(app4triqs_root):
+
+    for fname in files:
+        fpath = os.path.join(root, fname)
+
+        # Ignore certain files / directories
+        if any(it in fpath for it in ignore_lst): continue
+
+        if os.path.isfile(fpath):
+            # Rename files containing app4triqs in their filename
+            if "app4triqs" in fname:
+                new_fpath = os.path.join(root, fname.replace("app4triqs", app_name))
+                os.rename(fpath, new_fpath)
+                fpath = new_fpath
+
+            # Replace app4triqs and APP4TRIQS in all files
+            with open(fpath, 'r') as f:
+                s = f.read()
+            if "app4triqs" in s or "APP4TRIQS" in s:
+                with open(fpath, 'w') as f:
+                    f.write(s.replace("app4triqs", app_name).replace("APP4TRIQS", capital_name))
diff --git a/share/replace_and_rename.sh b/share/replace_and_rename.sh
deleted file mode 100755
index fd5c00b6..00000000
--- a/share/replace_and_rename.sh
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/usr/bin/env bash
-
-if [ $# -ne 1 ]; then
-  echo "Please pass the application name"
-  exit 1
-fi
-app_name=$1
-capital_name=$(printf '%s' "$1" | awk '{ print toupper($0) }')
-
-# Move app4triqs directories if necessary
-[ -d c++/app4triqs ] && mv c++/app4triqs c++/${app_name}
-[ -d python/app4triqs ] && mv python/app4triqs python/${app_name}
-
-# Replace app4triqs and APP4TRIQS for our application in all files and filenames
-if [ $(uname -s) == Linux ]; then
-  find . -type f \
-    -not -path "./.git/*" \
-    -not -path "*/replace_and_rename.sh" \
-    -not -path "*/squash_history.sh" \
-    -exec sed -i "s/app4triqs/${app_name}/g; s/APP4TRIQS/${capital_name}/g" {} \;
-  find . -type f -not -path "./.git/*" -exec rename app4triqs ${app_name} {} &> /dev/null \;
-elif [ $(uname -s) == Darwin ]; then
-  LC_CTYPE=C LANG=C find . -type f \
-    -not -path "./.git/*" \
-    -not -path "*/replace_and_rename.sh" \
-    -not -path "*/squash_history.sh" \
-    -exec sed -i '' -e "s/app4triqs/${app_name}/g; s/APP4TRIQS/${capital_name}/g" {} \;
-  find . -type f -not -path "./.git/*" -exec rename "s/app4triqs/${app_name}/" {} \; &> /dev/null
-
-fi