There seems to be a problem with git blame on z/OS.
For example if I run
git blame -L 14,+1 PARMLIB/IEASYS00 on a copy of a repository on my laptop I get this:
41657ed0 (Gary Freestone (U70021A) 2020-06-10 11:30:25 +0000 14) GRS=STAR, MASTER OF GRS COMPLEX 00013100
If I run the same command of z/OS I get the following:
fatal: file PARMLIB/IEASYS00 has only 1 line
git blame PARMLIB/IEASYS00 on z/OS I get this:
00000000 (Not Committed Yet 2020-07-01 00:38:39 +0000 1) <<|ä........................ íèç|²ñ! èñ|+.<ñ³è... FFFFFFFF44D9A4C9998AA884E8A4FFFF6FF6FF4FF7FF7FF44FFFF4F5444444333222222222222222222222455445454544424455222 000000000D5630364493354085302020007001000A38A390E000001D01CCF3D00C000000000000000000001548F29A149FE0C934000
Note:I only receive a single line of output. The second and third lines are hexadecimal display of the line I’m receiving.
The first few characters after the date and time are X’414C4C4F433D30302C’ which is ASCII for “ALLOC=00,” which happens to be the first line of the file.
So IMHO there seems to be a EBCDIC/ASCII problem with git blame.
I am running git version “git version 2.14.4_zos_b08” on my z/OS system