ref: 84ee79f00473db926883945991233dfe084d1823
parent: 8bd0182f46c5159341714af16cca43f7c579e199
author: Ori Bernstein <ori@eigenstate.org>
date: Tue Feb 9 00:52:32 EST 2021
git/merge, git/branch: share merge code, delete better There were some edge cases when merges deleted files: With diff3 redirected to an output, the output always exists. This lead to trash files being added to repos, and branch switches not cleaning up properly. In addition, this speeds up git/merge by not walking the whole tree, just the files changed by the commits that are getting merged.
--- a/branch
+++ b/branch
@@ -93,34 +93,13 @@
walk -eq $m > .git/index9/tracked/$m
}
}
-for(f in $dirtypaths){- ours=$f
+
+for(ours in $dirtypaths){common=/mnt/git/object/$orig/tree/$ours
theirs=/mnt/git/object/$base/tree/$ours
- n=$pid
- tmp=$ours.tmp
- while(test -f $tmp){- tmp=$tmp.$n
- n=`{echo $n + 1 | hoc}- }
- if(! test -f $ours)
- ours=/dev/null
- if(! test -f $theirs)
- theirs=/dev/null
- if(! test -f $common)
- common=/dev/null
- echo merging $f...
- if(! ape/diff3 -3 -m $ours $common $theirs > $tmp)
- echo ' 'merge needed: $ours
- if(test -f $f){- git/add $ours
- mv $tmp $ours
- }
- if not {- git/rm $ours
- rm $tmp
- }
+ merge1 $ours $ours $commmon $theirs
}
+
if(! ~ $#deleted 0){rm -f $deleted
rm -f .git/index9/tracked/$deleted
--- a/common.rc
+++ b/common.rc
@@ -30,6 +30,47 @@
}' $*
}
+fn present {+ if(~ $1 /dev/null && cmp $2 $3>/dev/null)
+ status=gone
+ if not if (~ $3 /dev/null && cmp $1 $2>/dev/null)
+ status=gone
+ if not
+ status=()
+}
+
+# merge1 out theirs base ours
+fn merge1 {+ n=$pid
+ out=$1
+ theirs=$2
+ base=$3
+ ours=$4
+ tmp=$out.tmp
+ while(test -f $tmp){+ tmp=$tmp.$n
+ n=`{echo $n + 1 | hoc}+ }
+
+ if(! test -f $ours)
+ ours=/dev/null
+ if(! test -f $base)
+ base=/dev/null
+ if(! test -f $theirs)
+ theirs=/dev/null
+ if(! ape/diff3 -3 -m $ours $base $theirs > $tmp)
+ echo merge needed: $out
+
+ if(present $ours $base $theirs){+ mv $tmp $out
+ git/add $out
+ }
+ if not {+ rm -f $tmp $out
+ git/rm $out
+ }
+}
+
fn gitup{ gitroot=`{git/conf -r >[2]/dev/null}if(~ $#gitroot 0)
--- a/merge
+++ b/merge
@@ -3,29 +3,17 @@
. /sys/lib/git/common.rc
fn merge{- ourbr=$1/tree
- basebr=$2/tree
- theirbr=$3/tree
+ ourbr=/mnt/git/object/$1/tree
+ basebr=/mnt/git/object/$2/tree
+ theirbr=/mnt/git/object/$3/tree
- all=`$nl{walk -f $ourbr $basebr $theirbr | \+ all=`$nl{{git/query -c $1 $2; git/query -c $2 $3} | sed 's/^..//' | \ subst -g '^('$ourbr'|'$basebr'|'$theirbr')/*' | sort | uniq} for(f in $all){ours=$ourbr/$f
base=$basebr/$f
theirs=$theirbr/$f
- if(! test -f $ourbr/$f)
- ours=/dev/null
- if(! test -f $basebr/$f)
- base=/dev/null
- if(! test -f $theirbr/$f)
- theirs=/dev/null
- if(! ape/diff3 -3 -m $ours $base $theirs > $f)
- echo merge needed: $f
-
- if(test -f $f)
- git/add $f
- if not
- git/rm $f
+ merge1 $f $theirs $base $ours
}
}
@@ -54,6 +42,6 @@
echo $ours >> .git/index9/merge-parents
echo $theirs >> .git/index9/merge-parents
-merge /mnt/git/object/$ours /mnt/git/object/$base /mnt/git/object/$theirs
+merge $ours $base $theirs
>[1=2] echo 'merge complete: remember to commit'
exit ''