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-rwxr-xr-xcontrib/subtree/t/t7900-subtree.sh508
1 files changed, 508 insertions, 0 deletions
diff --git a/contrib/subtree/t/t7900-subtree.sh b/contrib/subtree/t/t7900-subtree.sh
new file mode 100755
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+++ b/contrib/subtree/t/t7900-subtree.sh
@@ -0,0 +1,508 @@
+#!/bin/sh
+#
+# Copyright (c) 2012 Avery Pennaraum
+#
+test_description='Basic porcelain support for subtrees
+
+This test verifies the basic operation of the merge, pull, add
+and split subcommands of git subtree.
+'
+
+export TEST_DIRECTORY=$(pwd)/../../../t
+
+. ../../../t/test-lib.sh
+
+create()
+{
+ echo "$1" >"$1"
+ git add "$1"
+}
+
+
+check_equal()
+{
+ test_debug 'echo'
+ test_debug "echo \"check a:\" \"{$1}\""
+ test_debug "echo \" b:\" \"{$2}\""
+ if [ "$1" = "$2" ]; then
+ return 0
+ else
+ return 1
+ fi
+}
+
+fixnl()
+{
+ t=""
+ while read x; do
+ t="$t$x "
+ done
+ echo $t
+}
+
+multiline()
+{
+ while read x; do
+ set -- $x
+ for d in "$@"; do
+ echo "$d"
+ done
+ done
+}
+
+undo()
+{
+ git reset --hard HEAD~
+}
+
+last_commit_message()
+{
+ git log --pretty=format:%s -1
+}
+
+# 1
+test_expect_success 'init subproj' '
+ test_create_repo subproj
+'
+
+# To the subproject!
+cd subproj
+
+# 2
+test_expect_success 'add sub1' '
+ create sub1 &&
+ git commit -m "sub1" &&
+ git branch sub1 &&
+ git branch -m master subproj
+'
+
+# 3
+test_expect_success 'add sub2' '
+ create sub2 &&
+ git commit -m "sub2" &&
+ git branch sub2
+'
+
+# 4
+test_expect_success 'add sub3' '
+ create sub3 &&
+ git commit -m "sub3" &&
+ git branch sub3
+'
+
+# Back to mainline
+cd ..
+
+# 5
+test_expect_success 'add main4' '
+ create main4 &&
+ git commit -m "main4" &&
+ git branch -m master mainline &&
+ git branch subdir
+'
+
+# 6
+test_expect_success 'fetch subproj history' '
+ git fetch ./subproj sub1 &&
+ git branch sub1 FETCH_HEAD
+'
+
+# 7
+test_expect_success 'no subtree exists in main tree' '
+ test_must_fail git subtree merge --prefix=subdir sub1
+'
+
+# 8
+test_expect_success 'no pull from non-existant subtree' '
+ test_must_fail git subtree pull --prefix=subdir ./subproj sub1
+'
+
+# 9
+test_expect_success 'check if --message works for add' '
+ git subtree add --prefix=subdir --message="Added subproject" sub1 &&
+ check_equal ''"$(last_commit_message)"'' "Added subproject" &&
+ undo
+'
+
+# 10
+test_expect_success 'check if --message works as -m and --prefix as -P' '
+ git subtree add -P subdir -m "Added subproject using git subtree" sub1 &&
+ check_equal ''"$(last_commit_message)"'' "Added subproject using git subtree" &&
+ undo
+'
+
+# 11
+test_expect_success 'check if --message works with squash too' '
+ git subtree add -P subdir -m "Added subproject with squash" --squash sub1 &&
+ check_equal ''"$(last_commit_message)"'' "Added subproject with squash" &&
+ undo
+'
+
+# 12
+test_expect_success 'add subproj to mainline' '
+ git subtree add --prefix=subdir/ FETCH_HEAD &&
+ check_equal ''"$(last_commit_message)"'' "Add '"'subdir/'"' from commit '"'"'''"$(git rev-parse sub1)"'''"'"'"
+'
+
+# 13
+# this shouldn't actually do anything, since FETCH_HEAD is already a parent
+test_expect_success 'merge fetched subproj' '
+ git merge -m "merge -s -ours" -s ours FETCH_HEAD
+'
+
+# 14
+test_expect_success 'add main-sub5' '
+ create subdir/main-sub5 &&
+ git commit -m "main-sub5"
+'
+
+# 15
+test_expect_success 'add main6' '
+ create main6 &&
+ git commit -m "main6 boring"
+'
+
+# 16
+test_expect_success 'add main-sub7' '
+ create subdir/main-sub7 &&
+ git commit -m "main-sub7"
+'
+
+# 17
+test_expect_success 'fetch new subproj history' '
+ git fetch ./subproj sub2 &&
+ git branch sub2 FETCH_HEAD
+'
+
+# 18
+test_expect_success 'check if --message works for merge' '
+ git subtree merge --prefix=subdir -m "Merged changes from subproject" sub2 &&
+ check_equal ''"$(last_commit_message)"'' "Merged changes from subproject" &&
+ undo
+'
+
+# 19
+test_expect_success 'check if --message for merge works with squash too' '
+ git subtree merge --prefix subdir -m "Merged changes from subproject using squash" --squash sub2 &&
+ check_equal ''"$(last_commit_message)"'' "Merged changes from subproject using squash" &&
+ undo
+'
+
+# 20
+test_expect_success 'merge new subproj history into subdir' '
+ git subtree merge --prefix=subdir FETCH_HEAD &&
+ git branch pre-split &&
+ check_equal ''"$(last_commit_message)"'' "Merge commit '"'"'"$(git rev-parse sub2)"'"'"' into mainline"
+'
+
+# 21
+test_expect_success 'Check that prefix argument is required for split' '
+ echo "You must provide the --prefix option." > expected &&
+ test_must_fail git subtree split > actual 2>&1 &&
+ test_debug "echo -n expected: " &&
+ test_debug "cat expected" &&
+ test_debug "echo -n actual: " &&
+ test_debug "cat actual" &&
+ test_cmp expected actual &&
+ rm -f expected actual
+'
+
+# 22
+test_expect_success 'Check that the <prefix> exists for a split' '
+ echo "'"'"'non-existent-directory'"'"'" does not exist\; use "'"'"'git subtree add'"'"'" > expected &&
+ test_must_fail git subtree split --prefix=non-existent-directory > actual 2>&1 &&
+ test_debug "echo -n expected: " &&
+ test_debug "cat expected" &&
+ test_debug "echo -n actual: " &&
+ test_debug "cat actual" &&
+ test_cmp expected actual
+# rm -f expected actual
+'
+
+# 23
+test_expect_success 'check if --message works for split+rejoin' '
+ spl1=''"$(git subtree split --annotate='"'*'"' --prefix subdir --onto FETCH_HEAD --message "Split & rejoin" --rejoin)"'' &&
+ git branch spl1 "$spl1" &&
+ check_equal ''"$(last_commit_message)"'' "Split & rejoin" &&
+ undo
+'
+
+# 24
+test_expect_success 'check split with --branch' '
+ spl1=$(git subtree split --annotate='"'*'"' --prefix subdir --onto FETCH_HEAD --message "Split & rejoin" --rejoin) &&
+ undo &&
+ git subtree split --annotate='"'*'"' --prefix subdir --onto FETCH_HEAD --branch splitbr1 &&
+ check_equal ''"$(git rev-parse splitbr1)"'' "$spl1"
+'
+
+# 25
+test_expect_success 'check split with --branch for an existing branch' '
+ spl1=''"$(git subtree split --annotate='"'*'"' --prefix subdir --onto FETCH_HEAD --message "Split & rejoin" --rejoin)"'' &&
+ undo &&
+ git branch splitbr2 sub1 &&
+ git subtree split --annotate='"'*'"' --prefix subdir --onto FETCH_HEAD --branch splitbr2 &&
+ check_equal ''"$(git rev-parse splitbr2)"'' "$spl1"
+'
+
+# 26
+test_expect_success 'check split with --branch for an incompatible branch' '
+ test_must_fail git subtree split --prefix subdir --onto FETCH_HEAD --branch subdir
+'
+
+
+# 27
+test_expect_success 'check split+rejoin' '
+ spl1=''"$(git subtree split --annotate='"'*'"' --prefix subdir --onto FETCH_HEAD --message "Split & rejoin" --rejoin)"'' &&
+ undo &&
+ git subtree split --annotate='"'*'"' --prefix subdir --onto FETCH_HEAD --rejoin &&
+ check_equal ''"$(last_commit_message)"'' "Split '"'"'subdir/'"'"' into commit '"'"'"$spl1"'"'"'"
+'
+
+# 28
+test_expect_success 'add main-sub8' '
+ create subdir/main-sub8 &&
+ git commit -m "main-sub8"
+'
+
+# To the subproject!
+cd ./subproj
+
+# 29
+test_expect_success 'merge split into subproj' '
+ git fetch .. spl1 &&
+ git branch spl1 FETCH_HEAD &&
+ git merge FETCH_HEAD
+'
+
+# 30
+test_expect_success 'add sub9' '
+ create sub9 &&
+ git commit -m "sub9"
+'
+
+# Back to mainline
+cd ..
+
+# 31
+test_expect_success 'split for sub8' '
+ split2=''"$(git subtree split --annotate='"'*'"' --prefix subdir/ --rejoin)"''
+ git branch split2 "$split2"
+'
+
+# 32
+test_expect_success 'add main-sub10' '
+ create subdir/main-sub10 &&
+ git commit -m "main-sub10"
+'
+
+# 33
+test_expect_success 'split for sub10' '
+ spl3=''"$(git subtree split --annotate='"'*'"' --prefix subdir --rejoin)"'' &&
+ git branch spl3 "$spl3"
+'
+
+# To the subproject!
+cd ./subproj
+
+# 34
+test_expect_success 'merge split into subproj' '
+ git fetch .. spl3 &&
+ git branch spl3 FETCH_HEAD &&
+ git merge FETCH_HEAD &&
+ git branch subproj-merge-spl3
+'
+
+chkm="main4 main6"
+chkms="main-sub10 main-sub5 main-sub7 main-sub8"
+chkms_sub=$(echo $chkms | multiline | sed 's,^,subdir/,' | fixnl)
+chks="sub1 sub2 sub3 sub9"
+chks_sub=$(echo $chks | multiline | sed 's,^,subdir/,' | fixnl)
+
+# 35
+test_expect_success 'make sure exactly the right set of files ends up in the subproj' '
+ subfiles=''"$(git ls-files | fixnl)"'' &&
+ check_equal "$subfiles" "$chkms $chks"
+'
+
+# 36
+test_expect_success 'make sure the subproj history *only* contains commits that affect the subdir' '
+ allchanges=''"$(git log --name-only --pretty=format:'"''"' | sort | fixnl)"'' &&
+ check_equal "$allchanges" "$chkms $chks"
+'
+
+# Back to mainline
+cd ..
+
+# 37
+test_expect_success 'pull from subproj' '
+ git fetch ./subproj subproj-merge-spl3 &&
+ git branch subproj-merge-spl3 FETCH_HEAD &&
+ git subtree pull --prefix=subdir ./subproj subproj-merge-spl3
+'
+
+# 38
+test_expect_success 'make sure exactly the right set of files ends up in the mainline' '
+ mainfiles=''"$(git ls-files | fixnl)"'' &&
+ check_equal "$mainfiles" "$chkm $chkms_sub $chks_sub"
+'
+
+# 39
+test_expect_success 'make sure each filename changed exactly once in the entire history' '
+ # main-sub?? and /subdir/main-sub?? both change, because those are the
+ # changes that were split into their own history. And subdir/sub?? never
+ # change, since they were *only* changed in the subtree branch.
+ allchanges=''"$(git log --name-only --pretty=format:'"''"' | sort | fixnl)"'' &&
+ check_equal "$allchanges" ''"$(echo $chkms $chkm $chks $chkms_sub | multiline | sort | fixnl)"''
+'
+
+# 40
+test_expect_success 'make sure the --rejoin commits never make it into subproj' '
+ check_equal ''"$(git log --pretty=format:'"'%s'"' HEAD^2 | grep -i split)"'' ""
+'
+
+# 41
+test_expect_success 'make sure no "git subtree" tagged commits make it into subproj' '
+ # They are meaningless to subproj since one side of the merge refers to the mainline
+ check_equal ''"$(git log --pretty=format:'"'%s%n%b'"' HEAD^2 | grep "git-subtree.*:")"'' ""
+'
+
+# prepare second pair of repositories
+mkdir test2
+cd test2
+
+# 42
+test_expect_success 'init main' '
+ test_create_repo main
+'
+
+cd main
+
+# 43
+test_expect_success 'add main1' '
+ create main1 &&
+ git commit -m "main1"
+'
+
+cd ..
+
+# 44
+test_expect_success 'init sub' '
+ test_create_repo sub
+'
+
+cd sub
+
+# 45
+test_expect_success 'add sub2' '
+ create sub2 &&
+ git commit -m "sub2"
+'
+
+cd ../main
+
+# check if split can find proper base without --onto
+
+# 46
+test_expect_success 'add sub as subdir in main' '
+ git fetch ../sub master &&
+ git branch sub2 FETCH_HEAD &&
+ git subtree add --prefix subdir sub2
+'
+
+cd ../sub
+
+# 47
+test_expect_success 'add sub3' '
+ create sub3 &&
+ git commit -m "sub3"
+'
+
+cd ../main
+
+# 48
+test_expect_success 'merge from sub' '
+ git fetch ../sub master &&
+ git branch sub3 FETCH_HEAD &&
+ git subtree merge --prefix subdir sub3
+'
+
+# 49
+test_expect_success 'add main-sub4' '
+ create subdir/main-sub4 &&
+ git commit -m "main-sub4"
+'
+
+# 50
+test_expect_success 'split for main-sub4 without --onto' '
+ git subtree split --prefix subdir --branch mainsub4
+'
+
+# at this point, the new commit parent should be sub3 if it is not,
+# something went wrong (the "newparent" of "master~" commit should
+# have been sub3, but it was not, because its cache was not set to
+# itself)
+
+# 51
+test_expect_success 'check that the commit parent is sub3' '
+ check_equal ''"$(git log --pretty=format:%P -1 mainsub4)"'' ''"$(git rev-parse sub3)"''
+'
+
+# 52
+test_expect_success 'add main-sub5' '
+ mkdir subdir2 &&
+ create subdir2/main-sub5 &&
+ git commit -m "main-sub5"
+'
+
+# 53
+test_expect_success 'split for main-sub5 without --onto' '
+ # also test that we still can split out an entirely new subtree
+ # if the parent of the first commit in the tree is not empty,
+ # then the new subtree has accidently been attached to something
+ git subtree split --prefix subdir2 --branch mainsub5 &&
+ check_equal ''"$(git log --pretty=format:%P -1 mainsub5)"'' ""
+'
+
+# make sure no patch changes more than one file. The original set of commits
+# changed only one file each. A multi-file change would imply that we pruned
+# commits too aggressively.
+joincommits()
+{
+ commit=
+ all=
+ while read x y; do
+ #echo "{$x}" >&2
+ if [ -z "$x" ]; then
+ continue
+ elif [ "$x" = "commit:" ]; then
+ if [ -n "$commit" ]; then
+ echo "$commit $all"
+ all=
+ fi
+ commit="$y"
+ else
+ all="$all $y"
+ fi
+ done
+ echo "$commit $all"
+}
+
+# 54
+test_expect_success 'verify one file change per commit' '
+ x= &&
+ list=''"$(git log --pretty=format:'"'commit: %H'"' | joincommits)"'' &&
+# test_debug "echo HERE" &&
+# test_debug "echo ''"$list"''" &&
+ (git log --pretty=format:'"'commit: %H'"' | joincommits |
+ ( while read commit a b; do
+ test_debug "echo Verifying commit "''"$commit"''
+ test_debug "echo a: "''"$a"''
+ test_debug "echo b: "''"$b"''
+ check_equal "$b" ""
+ x=1
+ done
+ check_equal "$x" 1
+ ))
+'
+
+test_done
generated by cgit v0.10.2-6-g49f6 at 2024-04-16 18:09:26 (GMT)