other-test-repos/many-commits-fast-import.py

other-test-repos/README.md

@@ -7,7 +7,9 @@ Tests that are very large will not be included here to keep this repository smal
 - <https://github.com/cirosantilli/test-deep>
 - <https://github.com/cirosantilli/test-diff-many-files>
 - <https://github.com/cirosantilli/test-pr-many-commits>
-- <https://github.com/cirosantilli/test-many-commits-1m> [many-commits.py](many-commits.py)
+- <https://github.com/cirosantilli/test-many-commits-1m>
+    - [many-commits.py](many-commits-fast-import.py) superior
+    - [many-commits.py](many-commits.py) inferior
 - <https://github.com/cirosantilli/test-asciidoc-large-variable>
 
 There are also some tests that could not be included here conveniently:

other-test-repos/many-commits-fast-import.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python
+
+'''
+This is a superior and simpler alternative to many-commits.py.
+
+Usage:
+
+rm -rf many-commits.tmp
+mkdir -p many-commits.tmp
+cd many-commits.tmp
+git init
+../many-commits-fast-import.py [ncommits=10] | git fast-import
+
+Lenovo ThinkPad P51 SSD generation time for 2M commits: 33s. Disk usage: 270.2 MiB. Push size is smaller for some reason.
+'''
+
+import sys
+
+print('''blob
+mark :1
+data 1
+a
+reset refs/heads/master
+commit refs/heads/master
+mark :2
+author  <> 0 +0000
+committer  <> 0 +0000
+data 1
+
+M 100644 :1 a
+''')
+
+if len(sys.argv) > 1:
+    n = int(sys.argv[1])
+else:
+    n = 10
+for i in range(2, n + 1):
+    print('''commit refs/heads/master
+mark :{}
+author  <> 0 +0000
+committer  <> 0 +0000
+data 1
+
+from :{}
+'''.format(i + 1, i))

other-test-repos/many-commits.py

@@ -1,6 +1,8 @@
 #!/usr/bin/env python3
 
 """
+many-commits-fast-import.py, is a simpler and better alternative to this, just use that!!!
+
 Packing is important, or else deleting and pushing the generated repository could take a **huge** ammount of time.
 
 This method gets slower as it goes. 1M are fast to generate, but 10M require running for 24h nonstop.