path.c: refactor relative_path(), not only strip prefix

diff --git a/t/t5700-clone-reference.sh b/t/t5700-clone-reference.sh
index e5619a9f5c9aae8c9565dd6937c20ce6401d26d4..6537911a4300656706c995226b2f0444a760bae0 100755 (executable)
--- a/t/t5700-clone-reference.sh
+++ b/t/t5700-clone-reference.sh
@@ -8,6 +8,8 @@ test_description='test clone --reference'
 
 base_dir=`pwd`
 
+U=$base_dir/UPLOAD_LOG
+
 test_expect_success 'preparing first repository' \
 'test_create_repo A && cd A &&
 echo first > file1 &&
@@ -32,7 +34,7 @@ test_expect_success 'cloning with reference (-l -s)' \
 cd "$base_dir"
 
 test_expect_success 'existence of info/alternates' \
-'test `wc -l <C/.git/objects/info/alternates` = 2'
+'test_line_count = 2 C/.git/objects/info/alternates'
 
 cd "$base_dir"
 
@@ -46,17 +48,25 @@ test_expect_success 'that reference gets used' \
 'cd C &&
 echo "0 objects, 0 kilobytes" > expected &&
 git count-objects > current &&
-diff expected current'
+test_cmp expected current'
 
 cd "$base_dir"
 
-test_expect_success 'cloning with reference (no -l -s)' \
-'git clone --reference B "file://$(pwd)/A" D'
+rm -f "$U.D"
+
+test_expect_success 'cloning with reference (no -l -s)' '
+       GIT_TRACE_PACKET=$U.D git clone --reference B "file://$(pwd)/A" D
+'
+
+test_expect_success 'fetched no objects' '
+       test -s "$U.D" &&
+       ! grep " want" "$U.D"
+'
 
 cd "$base_dir"
 
 test_expect_success 'existence of info/alternates' \
-'test `wc -l <D/.git/objects/info/alternates` = 1'
+'test_line_count = 1 D/.git/objects/info/alternates'
 
 cd "$base_dir"
 
@@ -68,7 +78,7 @@ cd "$base_dir"
 test_expect_success 'that reference gets used' \
 'cd D && echo "0 objects, 0 kilobytes" > expected &&
 git count-objects > current &&
-diff expected current'
+test_cmp expected current'
 
 cd "$base_dir"
 
@@ -93,7 +103,7 @@ test_expect_success 'that alternate to origin gets used' \
 'cd C &&
 echo "2 objects" > expected &&
 git count-objects | cut -d, -f1 > current &&
-diff expected current'
+test_cmp expected current'
 
 cd "$base_dir"
 
@@ -109,8 +119,83 @@ test_expect_success 'check objects expected to exist locally' \
 'cd D &&
 echo "5 objects" > expected &&
 git count-objects | cut -d, -f1 > current &&
-diff expected current'
+test_cmp expected current'
 
 cd "$base_dir"
 
+test_expect_success 'preparing alternate repository #1' \
+'test_create_repo F && cd F &&
+echo first > file1 &&
+git add file1 &&
+git commit -m initial'
+
+cd "$base_dir"
+
+test_expect_success 'cloning alternate repo #2 and adding changes to repo #1' \
+'git clone F G && cd F &&
+echo second > file2 &&
+git add file2 &&
+git commit -m addition'
+
+cd "$base_dir"
+
+test_expect_success 'cloning alternate repo #1, using #2 as reference' \
+'git clone --reference G F H'
+
+cd "$base_dir"
+
+test_expect_success 'cloning with reference being subset of source (-l -s)' \
+'git clone -l -s --reference A B E'
+
+cd "$base_dir"
+
+test_expect_success 'clone with reference from a tagged repository' '
+       (
+               cd A && git tag -a -m 'tagged' HEAD
+       ) &&
+       git clone --reference=A A I
+'
+
+test_expect_success 'prepare branched repository' '
+       git clone A J &&
+       (
+               cd J &&
+               git checkout -b other master^ &&
+               echo other >otherfile &&
+               git add otherfile &&
+               git commit -m other &&
+               git checkout master
+       )
+'
+
+rm -f "$U.K"
+
+test_expect_success 'fetch with incomplete alternates' '
+       git init K &&
+       echo "$base_dir/A/.git/objects" >K/.git/objects/info/alternates &&
+       (
+               cd K &&
+               git remote add J "file://$base_dir/J" &&
+               GIT_TRACE_PACKET=$U.K git fetch J
+       ) &&
+       master_object=$(cd A && git for-each-ref --format="%(objectname)" refs/heads/master) &&
+       test -s "$U.K" &&
+       ! grep " want $master_object" "$U.K" &&
+       tag_object=$(cd A && git for-each-ref --format="%(objectname)" refs/tags/HEAD) &&
+       ! grep " want $tag_object" "$U.K"
+'
+
+test_expect_success 'clone using repo with gitfile as a reference' '
+       git clone --separate-git-dir=L A M &&
+       git clone --reference=M A N &&
+       echo "$base_dir/L/objects" >expected &&
+       test_cmp expected "$base_dir/N/.git/objects/info/alternates"
+'
+
+test_expect_success 'clone using repo pointed at by gitfile as reference' '
+       git clone --reference=M/.git A O &&
+       echo "$base_dir/L/objects" >expected &&
+       test_cmp expected "$base_dir/O/.git/objects/info/alternates"
+'
+
 test_done