init, clone: support --separate-git-dir for .git file

diff --git a/t/t0001-init.sh b/t/t0001-init.sh
index 7fe8883ae060947da804abb5b287fb94d19e87c4..b2e6919da1477e6a1b53182c3061abde844ffc67 100755 (executable)
--- a/t/t0001-init.sh
+++ b/t/t0001-init.sh
@@ -25,7 +25,7 @@ check_config () {
 
 test_expect_success 'plain' '
        (
-               unset GIT_DIR GIT_WORK_TREE
+               sane_unset GIT_DIR GIT_WORK_TREE &&
                mkdir plain &&
                cd plain &&
                git init
@@ -33,9 +33,65 @@ test_expect_success 'plain' '
        check_config plain/.git false unset
 '
 
+test_expect_success 'plain nested in bare' '
+       (
+               sane_unset GIT_DIR GIT_WORK_TREE &&
+               git init --bare bare-ancestor.git &&
+               cd bare-ancestor.git &&
+               mkdir plain-nested &&
+               cd plain-nested &&
+               git init
+       ) &&
+       check_config bare-ancestor.git/plain-nested/.git false unset
+'
+
+test_expect_success 'plain through aliased command, outside any git repo' '
+       (
+               sane_unset GIT_DIR GIT_WORK_TREE GIT_CONFIG_NOGLOBAL &&
+               HOME=$(pwd)/alias-config &&
+               export HOME &&
+               mkdir alias-config &&
+               echo "[alias] aliasedinit = init" >alias-config/.gitconfig &&
+
+               GIT_CEILING_DIRECTORIES=$(pwd) &&
+               export GIT_CEILING_DIRECTORIES &&
+
+               mkdir plain-aliased &&
+               cd plain-aliased &&
+               git aliasedinit
+       ) &&
+       check_config plain-aliased/.git false unset
+'
+
+test_expect_failure 'plain nested through aliased command' '
+       (
+               sane_unset GIT_DIR GIT_WORK_TREE &&
+               git init plain-ancestor-aliased &&
+               cd plain-ancestor-aliased &&
+               echo "[alias] aliasedinit = init" >>.git/config &&
+               mkdir plain-nested &&
+               cd plain-nested &&
+               git aliasedinit
+       ) &&
+       check_config plain-ancestor-aliased/plain-nested/.git false unset
+'
+
+test_expect_failure 'plain nested in bare through aliased command' '
+       (
+               sane_unset GIT_DIR GIT_WORK_TREE &&
+               git init --bare bare-ancestor-aliased.git &&
+               cd bare-ancestor-aliased.git &&
+               echo "[alias] aliasedinit = init" >>config &&
+               mkdir plain-nested &&
+               cd plain-nested &&
+               git aliasedinit
+       ) &&
+       check_config bare-ancestor-aliased.git/plain-nested/.git false unset
+'
+
 test_expect_success 'plain with GIT_WORK_TREE' '
        if (
-               unset GIT_DIR
+               sane_unset GIT_DIR &&
                mkdir plain-wt &&
                cd plain-wt &&
                GIT_WORK_TREE=$(pwd) git init
@@ -48,7 +104,7 @@ test_expect_success 'plain with GIT_WORK_TREE' '
 
 test_expect_success 'plain bare' '
        (
-               unset GIT_DIR GIT_WORK_TREE GIT_CONFIG
+               sane_unset GIT_DIR GIT_WORK_TREE GIT_CONFIG &&
                mkdir plain-bare-1 &&
                cd plain-bare-1 &&
                git --bare init
@@ -58,7 +114,7 @@ test_expect_success 'plain bare' '
 
 test_expect_success 'plain bare with GIT_WORK_TREE' '
        if (
-               unset GIT_DIR GIT_CONFIG
+               sane_unset GIT_DIR GIT_CONFIG &&
                mkdir plain-bare-2 &&
                cd plain-bare-2 &&
                GIT_WORK_TREE=$(pwd) git --bare init
@@ -72,7 +128,7 @@ test_expect_success 'plain bare with GIT_WORK_TREE' '
 test_expect_success 'GIT_DIR bare' '
 
        (
-               unset GIT_CONFIG
+               sane_unset GIT_CONFIG &&
                mkdir git-dir-bare.git &&
                GIT_DIR=git-dir-bare.git git init
        ) &&
@@ -82,7 +138,7 @@ test_expect_success 'GIT_DIR bare' '
 test_expect_success 'init --bare' '
 
        (
-               unset GIT_DIR GIT_WORK_TREE GIT_CONFIG
+               sane_unset GIT_DIR GIT_WORK_TREE GIT_CONFIG &&
                mkdir init-bare.git &&
                cd init-bare.git &&
                git init --bare
@@ -93,7 +149,7 @@ test_expect_success 'init --bare' '
 test_expect_success 'GIT_DIR non-bare' '
 
        (
-               unset GIT_CONFIG
+               sane_unset GIT_CONFIG &&
                mkdir non-bare &&
                cd non-bare &&
                GIT_DIR=.git git init
@@ -104,7 +160,7 @@ test_expect_success 'GIT_DIR non-bare' '
 test_expect_success 'GIT_DIR & GIT_WORK_TREE (1)' '
 
        (
-               unset GIT_CONFIG
+               sane_unset GIT_CONFIG &&
                mkdir git-dir-wt-1.git &&
                GIT_WORK_TREE=$(pwd) GIT_DIR=git-dir-wt-1.git git init
        ) &&
@@ -114,7 +170,7 @@ test_expect_success 'GIT_DIR & GIT_WORK_TREE (1)' '
 test_expect_success 'GIT_DIR & GIT_WORK_TREE (2)' '
 
        if (
-               unset GIT_CONFIG
+               sane_unset GIT_CONFIG &&
                mkdir git-dir-wt-2.git &&
                GIT_WORK_TREE=$(pwd) GIT_DIR=git-dir-wt-2.git git --bare init
        )
@@ -127,7 +183,7 @@ test_expect_success 'GIT_DIR & GIT_WORK_TREE (2)' '
 test_expect_success 'reinit' '
 
        (
-               unset GIT_CONFIG GIT_WORK_TREE GIT_CONFIG
+               sane_unset GIT_CONFIG GIT_WORK_TREE GIT_CONFIG &&
 
                mkdir again &&
                cd again &&
@@ -175,8 +231,8 @@ test_expect_success 'init with init.templatedir set' '
                git config -f "$test_config"  init.templatedir "${HOME}/templatedir-source" &&
                mkdir templatedir-set &&
                cd templatedir-set &&
-               unset GIT_CONFIG_NOGLOBAL &&
-               unset GIT_TEMPLATE_DIR &&
+               sane_unset GIT_CONFIG_NOGLOBAL &&
+               sane_unset GIT_TEMPLATE_DIR &&
                NO_SET_GIT_TEMPLATE_DIR=t &&
                export NO_SET_GIT_TEMPLATE_DIR &&
                git init
@@ -187,7 +243,7 @@ test_expect_success 'init with init.templatedir set' '
 test_expect_success 'init --bare/--shared overrides system/global config' '
        (
                test_config="$HOME"/.gitconfig &&
-               unset GIT_CONFIG_NOGLOBAL &&
+               sane_unset GIT_CONFIG_NOGLOBAL &&
                git config -f "$test_config" core.bare false &&
                git config -f "$test_config" core.sharedRepository 0640 &&
                mkdir init-bare-shared-override &&
@@ -202,7 +258,7 @@ test_expect_success 'init --bare/--shared overrides system/global config' '
 test_expect_success 'init honors global core.sharedRepository' '
        (
                test_config="$HOME"/.gitconfig &&
-               unset GIT_CONFIG_NOGLOBAL &&
+               sane_unset GIT_CONFIG_NOGLOBAL &&
                git config -f "$test_config" core.sharedRepository 0666 &&
                mkdir shared-honor-global &&
                cd shared-honor-global &&
@@ -318,4 +374,50 @@ test_expect_success 'init prefers command line to GIT_DIR' '
        ! test -d otherdir/refs
 '
 
+test_expect_success 'init with separate gitdir' '
+       rm -rf newdir &&
+       git init --separate-git-dir realgitdir newdir &&
+       echo "gitdir: `pwd`/realgitdir" >expected &&
+       test_cmp expected newdir/.git &&
+       test -d realgitdir/refs
+'
+
+test_expect_success 're-init to update git link' '
+       (
+       cd newdir &&
+       git init --separate-git-dir ../surrealgitdir
+       ) &&
+       echo "gitdir: `pwd`/surrealgitdir" >expected &&
+       test_cmp expected newdir/.git &&
+       test -d surrealgitdir/refs &&
+       ! test -d realgitdir/refs
+'
+
+test_expect_success 're-init to move gitdir' '
+       rm -rf newdir realgitdir surrealgitdir &&
+       git init newdir &&
+       (
+       cd newdir &&
+       git init --separate-git-dir ../realgitdir
+       ) &&
+       echo "gitdir: `pwd`/realgitdir" >expected &&
+       test_cmp expected newdir/.git &&
+       test -d realgitdir/refs
+'
+
+test_expect_success 're-init to move gitdir symlink' '
+       rm -rf newdir realgitdir &&
+       git init newdir &&
+       (
+       cd newdir &&
+       mv .git here &&
+       ln -s here .git &&
+       git init -L ../realgitdir
+       ) &&
+       echo "gitdir: `pwd`/realgitdir" >expected &&
+       test_cmp expected newdir/.git &&
+       test -d realgitdir/refs &&
+       ! test -d newdir/here
+'
+
 test_done