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Ori Bernstein 5d37407e3c diff: avoid empty hunks when there are no changes
Currently, diff outputs a file header, even if there are
no changes to the file. This is wonky.

It means that the header chunks are ambiguous, since
not all header chunks are followed by '@@ hunk', and
'--- file', '+++ file' lines can be generated from
file content.

This changes the way that we decide to print the file
header, so we only print it when outputting the first
hunk on flushchanges.

Flushchanges is called once per regular file, at the
end of `diffreg`, so we output a hunk header once per
file.
2022-06-04 02:21:19 +00:00
386 ape: sync flaot.h macros with u.h 2021-02-08 15:45:11 -08:00
68000 add signed fixed size integer typedefs 2018-05-12 19:19:52 +02:00
68020 ape: sync flaot.h macros with u.h 2021-02-08 15:45:11 -08:00
acme win: fix window recreation command 2020-09-16 12:41:24 +02:00
adm/timezone timezones: change DST timezone string for South Australia 2019-11-20 11:49:16 +10:30
amd64 libc: change usize to 64-bit for amd64 and arm64, make memory(2) functions use usize 2021-07-25 15:54:22 +00:00
arm ape: sync flaot.h macros with u.h 2021-02-08 15:45:11 -08:00
arm64 libc: change usize to 64-bit for amd64 and arm64, make memory(2) functions use usize 2021-07-25 15:54:22 +00:00
lib kernel: add /rc to devroot 2022-05-28 02:31:26 +00:00
mips ape: sync flaot.h macros with u.h 2021-02-08 15:45:11 -08:00
power ape: sync flaot.h macros with u.h 2021-02-08 15:45:11 -08:00
power64 add signed fixed size integer typedefs 2018-05-12 19:19:52 +02:00
rc chdev: dont pollute environment 2022-05-31 19:30:23 +00:00
sparc ape: sync flaot.h macros with u.h 2021-02-08 15:45:11 -08:00
sparc64 ape: sync flaot.h macros with u.h 2021-02-08 15:45:11 -08:00
spim add signed fixed size integer typedefs 2018-05-12 19:19:52 +02:00
sys diff: avoid empty hunks when there are no changes 2022-06-04 02:21:19 +00:00