From 52c50b7299efb2050794ac589902af325156f7c3 Mon Sep 17 00:00:00 2001
From: Florian Fischer <florian.fl.fischer@fau.de>
Date: Fri, 30 Aug 2019 13:57:05 +0200
Subject: add --version flag to executables

---
 bench.py     |  6 +++++-
 merge.py     |  6 +++++-
 src/util.py  | 23 +++++++++++++++++++++++
 summarize.py |  6 +++++-
 4 files changed, 38 insertions(+), 3 deletions(-)

diff --git a/bench.py b/bench.py
index a34e53e..5144459 100755
--- a/bench.py
+++ b/bench.py
@@ -36,7 +36,7 @@ import src.globalvars
 from src.util import find_cmd
 from src.util import print_status, print_warn, print_error
 from src.util import print_info, print_info2, print_debug
-from src.util import print_license_and_exit
+from src.util import print_license_and_exit, print_version_and_exit
 
 
 def epilog():
@@ -83,11 +83,15 @@ def main():
                         default=["all"])
     parser.add_argument("-rd", "--resultdir", help="directory where all results go", type=str)
     parser.add_argument("--license", help="print license info and exit", action='store_true')
+    parser.add_argument("--version", help="print version info and exit", action='store_true')
 
     args = parser.parse_args()
     if args.license:
         print_license_and_exit()
 
+    if args.version:
+        print_version_and_exit()
+
     atexit.register(epilog)
 
     # Set global verbosity
diff --git a/merge.py b/merge.py
index 3b93499..a8b2afb 100755
--- a/merge.py
+++ b/merge.py
@@ -24,17 +24,21 @@ import os
 import pickle
 import sys
 
-from src.util import print_license_and_exit
+from src.util import print_license_and_exit, print_version_and_exit
 
 
 def main():
     if "--license" in sys.argv:
         print_license_and_exit()
 
+    if "--version" in sys.argv:
+        print_version_and_exit()
+
     parser = argparse.ArgumentParser(description="Merge to allocbench results")
     parser.add_argument("src", help="results which should be merged into dest", type=str)
     parser.add_argument("dest", help="results in which src should be merged", type=str)
     parser.add_argument("--license", help="print license info and exit", action='store_true')
+    parser.add_argument("--version", help="print version info and exit", action='store_true')
     parser.add_argument("-b", "--benchmarks", help="benchmarks to summarize", nargs='+')
     parser.add_argument("-x", "--exclude-benchmarks", help="benchmarks to exclude", nargs='+')
 
diff --git a/src/util.py b/src/util.py
index 9941d6f..6ec984a 100644
--- a/src/util.py
+++ b/src/util.py
@@ -145,3 +145,26 @@ def print_license_and_exit():
     print("Copyright (C) 2018-2019 Florian Fischer")
     print("License GPLv3: GNU GPL version 3 <http://gnu.org/licenses/gpl.html>")
     exit(0)
+
+
+def print_version_and_exit():
+    """Print current commit info before exit"""
+    proc = subprocess.run(["git", "rev-parse", "HEAD"],
+                          universal_newlines=True, stdout=subprocess.PIPE)
+
+    if proc.returncode != 0:
+        print_error("git rev-parse failed")
+        exit(1)
+    commit = proc.stdout[:-1]
+
+    proc = subprocess.run(["git", "status", "--porcelain"],
+                          universal_newlines=True, stdout=subprocess.PIPE)
+    
+    if proc.returncode != 0:
+        print_error("git status --porcelain failed")
+        exit(1)
+
+    dirty = "-dirty" if proc.stdout != "" else ""
+    
+    print(f"{commit}{dirty}")
+    exit(0)
diff --git a/summarize.py b/summarize.py
index e467648..0d12512 100755
--- a/summarize.py
+++ b/summarize.py
@@ -27,7 +27,7 @@ import sys
 
 import src.globalvars
 from src.util import print_status, print_debug, print_error
-from src.util import print_license_and_exit
+from src.util import print_license_and_exit, print_version_and_exit
 
 
 def specific_summary(bench, sum_dir, allocators):
@@ -94,9 +94,13 @@ def main():
     if "--license" in sys.argv:
         print_license_and_exit()
 
+    if "--version" in sys.argv:
+        print_version_and_exit()
+
     parser = argparse.ArgumentParser(description="Summarize allocbench results in allocator sets")
     parser.add_argument("results", help="path to results", type=str)
     parser.add_argument("--license", help="print license info and exit", action='store_true')
+    parser.add_argument("--versiob", help="print version info and exit", action='store_true')
     parser.add_argument("-b", "--benchmarks", help="benchmarks to summarize", nargs='+')
     parser.add_argument("-x", "--exclude-benchmarks", help="benchmarks to exclude", nargs='+')
 
-- 
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