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sysupdate: use the rc -b flag to keep sysupdate in memory

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when /rc/bin/sysupdate gets updated itself during a sysupdate,
rc gets confused when continuing reading the original file,
but it gets data from the updated file causing confusion.

the -b flag forces rc to read the original file as a whole
before starting execution preventing this issue.

updating this should be fine as the file has been shrunk
from 230 bytes to 224 bytes.
This commit is contained in:
cinap_lenrek 2023-09-17 00:36:51 +00:00
parent e182ec11fb
commit 556618eb07
1 changed files with 2 additions and 4 deletions
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6
rc/bin/sysupdate
View file

@ -1,11 +1,9 @@
#!/bin/rc
#!/bin/rc -b
rfork en
cd /
if(! test -d .git)
bind -ac /dist/plan9front /
if(! ~ `{git/branch} heads/front)
>[1=2] echo sysupdate: must be on "front" branch to pull
>[1=2] echo sysupdate: must be on "front" to pull
if not
git/pull -u gits://git.9front.org/plan9front/plan9front