From 9ddc8d6ba67cf22d8c683bd89f458a748901985d Mon Sep 17 00:00:00 2001
From: Daniel Lemire <lemire@gmail.com>
Date: Tue, 26 Feb 2019 17:08:00 -0500
Subject: [PATCH] Adding release script.

---
 tools/release.py | 115 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100755 tools/release.py

diff --git a/tools/release.py b/tools/release.py
new file mode 100755
index 000000000..3775d47fd
--- /dev/null
+++ b/tools/release.py
@@ -0,0 +1,115 @@
+#!/usr/bin/env python3
+########################################################################
+# Generates a new release.
+########################################################################
+import sys
+import re
+import subprocess
+import io
+import os
+
+
+def extractnumbers(s):
+    return tuple(map(int,re.findall("(\d+)\.(\d+)\.(\d+)",str(s))[0]))
+
+def toversionstring(major, minor, rev):
+    return str(major)+"."+str(minor)+"."+str(rev)
+
+def topaddedversionstring(major, minor, rev):
+    return str(major)+str(minor).zfill(3)+str(rev).zfill(3)
+
+pipe = subprocess.Popen(["git", "rev-parse", "--abbrev-ref", "HEAD"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+branchresult = pipe.communicate()[0].decode().strip()
+
+if(branchresult != "master"):
+    print("release on master, you are on '"+branchresult+"'")
+    sys.exit(-1)
+
+
+ret = subprocess.call(["git", "remote", "update"])
+
+if(ret != 0):
+    sys.exit(ret)
+
+
+
+pipe = subprocess.Popen(["git", "log", "HEAD..", "--oneline"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+uptodateresult = pipe.communicate()[0].decode().strip()
+
+if(len(uptodateresult) != 0):
+    print(uptodateresult)
+    sys.exit(-1)
+
+pipe = subprocess.Popen(["git", "rev-parse", "--show-toplevel"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+maindir = pipe.communicate()[0].decode().strip()
+
+
+print("repository: "+maindir)
+
+pipe = subprocess.Popen(["git", "describe", "--abbrev=0", "--tags"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+versionresult = pipe.communicate()[0].decode().strip()
+
+print("last version: "+versionresult )
+try:
+  currentv = extractnumbers(versionresult)
+except:
+  currentv = [0,0,0]
+if(len(sys.argv) != 2):
+    nextv = (currentv[0],currentv[1], currentv[2]+1)
+    print ("please specify version number, e.g. "+toversionstring(*nextv))
+    sys.exit(-1)
+try:
+    newversion = extractnumbers(sys.argv[1])
+except:
+    print("can't parse version number "+sys.argv[1])
+    sys.exit(-1)
+
+print("checking that new version is valid")
+
+if(newversion[0] !=  currentv[0]):
+    assert newversion[0] ==  currentv[0] + 1
+    assert newversion[1] == 0
+    assert newversion[2] == 0
+elif (newversion[1] !=  currentv[1]):
+    assert newversion[1] ==  currentv[1] + 1
+    assert newversion[2] == 0
+else :
+    assert newversion[2] ==  currentv[2] + 1
+
+
+
+versionfilerel = os.sep + "include" + os.sep + "simdjson" + os.sep + "simdjson_version.h"
+versionfile = maindir + versionfilerel
+
+with open(versionfile, 'w') as file:
+    file.write("// "+versionfilerel+" automatically generated by release.py, do not change by hand \n")
+    file.write("#ifndef SIMDJSON_INCLUDE_SIMDJSON_VERSION \n")
+    file.write("#define SIMDJSON_INCLUDE_SIMDJSON_VERSION \n")
+    file.write("#define SIMDJSON_VERSION = "+toversionstring(*newversion)+",  \n")
+    file.write("enum { \n")
+    file.write("    SIMDJSON_VERSION_MAJOR = "+str(newversion[0])+",  \n")
+    file.write("    SIMDJSON_VERSION_MINOR = "+str(newversion[1])+",  \n")
+    file.write("    SIMDJSON_VERSION_REVISION = "+str(newversion[2])+"  \n")
+    file.write("}; \n")
+    file.write("#endif // SIMDJSON_INCLUDE_SIMDJSON_VERSION \n")
+
+
+print(versionfile + " modified")
+
+import fileinput
+import re
+
+newversionstring = str(newversion[0]) + "." + str(newversion[1]) + "." + str(newversion[2])
+cmakefile = maindir + os.sep + "CMakeLists.txt"
+for line in fileinput.input(cmakefile, inplace=1, backup='.bak'):
+    line = re.sub('SIMDJSON_LIB_VERSION "\d+\.\d+\.\d+','SIMDJSON_LIB_VERSION "'+newversionstring, line.rstrip())
+    line = re.sub('SIMDJSON_LIB_SOVERSION "\d+\.\d+\.\d+','SIMDJSON_LIB_SOVERSION "'+newversionstring, line)
+    print(line)
+
+print("modified "+cmakefile+", a backup was made")
+
+scriptlocation = os.path.dirname(os.path.abspath(__file__))
+
+
+print("Please run the tests before issuing a release, do make test && make amalgamate \n")
+print("to issue release, enter \n git commit -a && git push  &&  git tag -a v"+toversionstring(*newversion)+" -m \"version "+toversionstring(*newversion)+"\" &&  git push --tags \n")