Copyright header updates s/2013/2014 on files whose last git commit was done in 2014.

contrib/devtools/fix-copyright-headers.py script to be able to perform this maintenance task with ease during the rest of the year, every year. Modifications to contrib/devtools/README.md to document what fix-copyright-headers.py does.

2 files changed, 64 insertions, 0 deletions

diff --git a/contrib/devtools/README.md b/contrib/devtools/README.md
index 55d5d24cca..f0d25fd7a2 100644
--- a/contrib/devtools/README.md
+++ b/contrib/devtools/README.md
@@ -36,3 +36,14 @@ Configuring the github-merge tool for the bitcoin repository is done in the foll
     git config githubmerge.testcmd "make -j4 check" (adapt to whatever you want to use for testing)
     git config --global user.signingkey mykeyid (if you want to GPG sign)
 
+## fix-copyright-headers.py
+
+Every year newly updated files need to have its copyright headers updated to reflect the current year.
+If you run this script from src/ it will automatically update the year on the copyright header for all
+.cpp and .h files if these have a git commit from the current year.
+
+For example a file changed in 2014 (with 2014 being the current year):
+```// Copyright (c) 2009-2013 The Bitcoin developers```
+
+would be changed to:
+```// Copyright (c) 2009-2014 The Bitcoin developers```
\ No newline at end of file
diff --git a/contrib/devtools/fix-copyright-headers.py b/contrib/devtools/fix-copyright-headers.py
new file mode 100755
index 0000000000..52fdc99144
--- /dev/null
+++ b/contrib/devtools/fix-copyright-headers.py
@@ -0,0 +1,53 @@
+#!/usr/bin/env python
+'''
+Run this script inside of src/ and it will look for all the files
+that were changed this year that still have the last year in the
+copyright headers, and it will fix the headers on that file using
+a perl regex one liner.
+
+For example: if it finds something like this and we're in 2014
+
+// Copyright (c) 2009-2013 The Bitcoin developers
+
+it will change it to
+
+// Copyright (c) 2009-2014 The Bitcoin developers
+
+It will do this for all the files in the folder and its children.
+
+Author: @gubatron
+'''
+import os
+import time
+
+year = time.gmtime()[0]
+last_year = year - 1
+command = "perl -pi -e 's/%s The Bitcoin/%s The Bitcoin/' %s"
+listFilesCommand = "find . | grep %s"
+
+extensions = [".cpp",".h"]
+
+def getLastGitModifiedDate(filePath):
+  gitGetLastCommitDateCommand = "git log " + filePath +" | grep Date | head -n 1"
+  p = os.popen(gitGetLastCommitDateCommand)
+  result = ""
+  for l in p:
+    result = l
+    break
+  result = result.replace("\n","")
+  return result
+
+n=1
+for extension in extensions:
+  foundFiles = os.popen(listFilesCommand % extension)
+  for filePath in foundFiles:
+    filePath = filePath[1:-1]
+    if filePath.endswith(extension):
+      filePath = os.getcwd() + filePath
+      modifiedTime = getLastGitModifiedDate(filePath)
+      if len(modifiedTime) > 0 and str(year) in modifiedTime:
+        print n,"Last Git Modified: ", modifiedTime, " - ", filePath
+        os.popen(command % (last_year,year,filePath))
+        n = n + 1
+
+