From df8317585f5ee99de68cdda38df2a5b1a2d6027f Mon Sep 17 00:00:00 2001
From: liquid600pgm <liquidekgaming@gmail.com>
Date: Sat, 22 Jun 2019 00:10:41 +0200
Subject: [PATCH] fixed #581 nimble init does not overwrite existing files with
 its templates anymore

---
 src/nimblepkg/init.nim | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/nimblepkg/init.nim b/src/nimblepkg/init.nim
index 0617d97..e8c1000 100644
--- a/src/nimblepkg/init.nim
+++ b/src/nimblepkg/init.nim
@@ -14,6 +14,10 @@ type
     pkgNimDep: string
     pkgType: string
 
+proc writeFileIfNonExistent(file: string, content: string) =
+  if not existsFile(file):
+    writeFile(file, content)
+
 proc createPkgStructure*(info: PkgInitInfo, pkgRoot: string) =
   # Create source directory
   createDirD(pkgRoot / info.pkgSrcDir)
@@ -23,7 +27,7 @@ proc createPkgStructure*(info: PkgInitInfo, pkgRoot: string) =
   case info.pkgType
   of "binary":
     let mainFile = pkgRoot / info.pkgSrcDir / info.pkgName.changeFileExt("nim")
-    writeFile(mainFile,
+    writeFileIfNonExistent(mainFile,
 """
 # This is just an example to get you started. A typical binary package
 # uses this file as the main entry point of the application.
@@ -35,7 +39,7 @@ when isMainModule:
     nimbleFileOptions.add("bin           = @[\"$1\"]\n" % info.pkgName)
   of "library":
     let mainFile = pkgRoot / info.pkgSrcDir / info.pkgName.changeFileExt("nim")
-    writeFile(mainFile,
+    writeFileIfNonExistent(mainFile,
 """
 # This is just an example to get you started. A typical library package
 # exports the main API in this file. Note that you cannot rename this file
@@ -50,7 +54,7 @@ proc add*(x, y: int): int =
     createDirD(pkgRoot / info.pkgSrcDir / info.pkgName)
     let submodule = pkgRoot / info.pkgSrcDir / info.pkgName /
         "submodule".addFileExt("nim")
-    writeFile(submodule,
+    writeFileIfNonExistent(submodule,
 """
 # This is just an example to get you started. Users of your library will
 # import this file by writing ``import $1/submodule``. Feel free to rename or
@@ -68,7 +72,7 @@ proc initSubmodule*(): Submodule =
     )
   of "hybrid":
     let mainFile = pkgRoot / info.pkgSrcDir / info.pkgName.changeFileExt("nim")
-    writeFile(mainFile,
+    writeFileIfNonExistent(mainFile,
 """
 # This is just an example to get you started. A typical hybrid package
 # uses this file as the main entry point of the application.
@@ -83,7 +87,7 @@ when isMainModule:
     let pkgSubDir = pkgRoot / info.pkgSrcDir / info.pkgName & "pkg"
     createDirD(pkgSubDir)
     let submodule = pkgSubDir / "submodule".addFileExt("nim")
-    writeFile(submodule,
+    writeFileIfNonExistent(submodule,
 """
 # This is just an example to get you started. Users of your hybrid library will
 # import this file by writing ``import $1pkg/submodule``. Feel free to rename or
@@ -112,7 +116,7 @@ proc getWelcomeMessage*(): string = "Hello, World!"
     )
 
     if info.pkgType == "library":
-      writeFile(pkgTestPath / "test1".addFileExt("nim"),
+      writeFileIfNonExistent(pkgTestPath / "test1".addFileExt("nim"),
 """
 # This is just an example to get you started. You may wish to put all of your
 # tests into a single file, or separate them into multiple `test1`, `test2`
@@ -129,7 +133,7 @@ test "can add":
 """ % info.pkgName
       )
     else:
-      writeFile(pkgTestPath / "test1".addFileExt("nim"),
+      writeFileIfNonExistent(pkgTestPath / "test1".addFileExt("nim"),
 """
 # This is just an example to get you started. You may wish to put all of your
 # tests into a single file, or separate them into multiple `test1`, `test2`