shithub: git9

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ref: d49479660dbb66cde23766084206dc1ba43e02df
parent: dc47e402e7b53c0e81478aa9560e00ffd73d8332
author: Ori Bernstein <ori@eigenstate.org>
date: Sun Dec 1 12:12:21 EST 2019

fix branch behavior: use existing branches.

we used to treat creating a new branch and switching
to an existing branch as the same, using the current
base commit. this is wrong.

now, if the branch we're switching to exists and we
have no '-b' parameter, we use its current commit as
the commit we switch to.

--- a/branch
+++ b/branch
@@ -14,7 +14,7 @@
 stay=()
 create=()
 delete=()
-base=`{awk '$1=="branch"{print $2}' < /mnt/git/ctl}
+base=()
 while(~ $1 -* && ! ~ $1 --){
 	switch($1){
 	case -c; create=true
@@ -30,7 +30,7 @@
 if(~ $1 --) shift
 
 if(~ $#* 0){
-	echo $base
+	awk '$1=="branch"{print $2}' < /mnt/git/ctl
 	exit
 }
 
@@ -42,6 +42,12 @@
 	new=refs/$1
 if not
 	new=refs/heads/$1
+if (~ $#base 1)
+	base=`{git/query $base}
+if not if(test -e .git/$new)
+	base=`{git/query $new}
+if not
+	base=`{git/query HEAD}
 
 if(! ~ $#delete 0){
 	rm -f .git/$new
@@ -60,6 +66,7 @@
 }
 if not{
 	commit=`{git/query $base || die 'branch does not exist:' $base}
+	echo updating $new to $commit
 	echo $commit > .git/$new
 }
 
@@ -79,8 +86,10 @@
 		# over. If we're checking out a
 		a=`{test -f $m && echo file || echo dir}
 		b=`{test -f $basedir/tree/$m && echo file || echo dir}
-		if($a != $b)
+		if(! ~ $a $b){
 			rm -rf $m
+			rm -rf .git/index9/tracked/$m
+		}
 		if(test -f $basedir/tree/$m){
 			cp  $basedir/tree/$m $m
 			walk -eq $m > .git/index9/tracked/$m
--- a/walk.c
+++ b/walk.c
@@ -89,10 +89,8 @@
 		goto error;
 	while((n = dirread(fd, &d)) > 0){
 		for(i = 0; i < n; i++){
-			if(seen(&d[i])){
-				print("seen %s\n", full);
+			if(seen(&d[i]))
 				continue;
-			}
 			if(d[i].qid.type & QTDIR){
 				if((sub = smprint("%s%s%s", dir, sep, d[i].name)) == nil)
 					sysfatal("smprint: %r");