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git/t/t1415-worktree-refs.sh

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Add a place for (not) sharing stuff between worktrees When multiple worktrees are used, we need rules to determine if something belongs to one worktree or all of them. Instead of keeping adding rules when new stuff comes (*), have a generic rule: - Inside $GIT_DIR, which is per-worktree by default, add $GIT_DIR/common which is always shared. New features that want to share stuff should put stuff under this directory. - Inside refs/, which is shared by default except refs/bisect, add refs/worktree/ which is per-worktree. We may eventually move refs/bisect to this new location and remove the exception in refs code. (*) And it may also include stuff from external commands which will have no way to modify common/per-worktree rules. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-09-29 19:10:23 +00:00
#!/bin/sh
test_description='per-worktree refs'
. ./test-lib.sh
test_expect_success 'setup' '
test_commit initial &&
test_commit wt1 &&
test_commit wt2 &&
git worktree add wt1 wt1 &&
git worktree add wt2 wt2 &&
git checkout initial &&
git update-ref refs/worktree/foo HEAD &&
git -C wt1 update-ref refs/worktree/foo HEAD &&
git -C wt2 update-ref refs/worktree/foo HEAD
'
t1415: set REFFILES for test specific to storage format Packing refs (and therefore checking that certain refs are not packed) is a property of the packed/loose ref storage. Add a comment to explain what the test checks. Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Reviewed-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-31 16:56:37 +00:00
# The 'packed-refs' file is stored directly in .git/. This means it is global
# to the repository, and can only contain refs that are shared across all
# worktrees.
test_expect_success REFFILES 'refs/worktree must not be packed' '
Add a place for (not) sharing stuff between worktrees When multiple worktrees are used, we need rules to determine if something belongs to one worktree or all of them. Instead of keeping adding rules when new stuff comes (*), have a generic rule: - Inside $GIT_DIR, which is per-worktree by default, add $GIT_DIR/common which is always shared. New features that want to share stuff should put stuff under this directory. - Inside refs/, which is shared by default except refs/bisect, add refs/worktree/ which is per-worktree. We may eventually move refs/bisect to this new location and remove the exception in refs code. (*) And it may also include stuff from external commands which will have no way to modify common/per-worktree rules. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-09-29 19:10:23 +00:00
git pack-refs --all &&
test_path_is_missing .git/refs/tags/wt1 &&
test_path_is_file .git/refs/worktree/foo &&
test_path_is_file .git/worktrees/wt1/refs/worktree/foo &&
test_path_is_file .git/worktrees/wt2/refs/worktree/foo
'
test_expect_success 'refs/worktree are per-worktree' '
test_cmp_rev worktree/foo initial &&
( cd wt1 && test_cmp_rev worktree/foo wt1 ) &&
( cd wt2 && test_cmp_rev worktree/foo wt2 )
'
refs: new ref types to make per-worktree refs visible to all worktrees One of the problems with multiple worktree is accessing per-worktree refs of one worktree from another worktree. This was sort of solved by multiple ref store, where the code can open the ref store of another worktree and has access to the ref space of that worktree. The problem with this is reporting. "HEAD" in another ref space is also called "HEAD" like in the current ref space. In order to differentiate them, all the code must somehow carry the ref store around and print something like "HEAD from this ref store". But that is not feasible (or possible with a _lot_ of work). With the current design, we pass a reference around as a string (so called "refname"). Extending this design to pass a string _and_ a ref store is a nightmare, especially when handling extended SHA-1 syntax. So we do it another way. Instead of entering a separate ref space, we make refs from other worktrees available in the current ref space. So "HEAD" is always HEAD of the current worktree, but then we can have "worktrees/blah/HEAD" to denote HEAD from a worktree named "blah". This syntax coincidentally matches the underlying directory structure which makes implementation a bit easier. The main worktree has to be treated specially because well... it's special from the beginning. So HEAD from the main worktree is acccessible via the name "main-worktree/HEAD" instead of "worktrees/main/HEAD" because "main" could be just another secondary worktree. This patch also makes it possible to specify refs from one worktree in another one, e.g. git log worktrees/foo/HEAD Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-21 08:08:54 +00:00
test_expect_success 'resolve main-worktree/HEAD' '
test_cmp_rev main-worktree/HEAD initial &&
( cd wt1 && test_cmp_rev main-worktree/HEAD initial ) &&
( cd wt2 && test_cmp_rev main-worktree/HEAD initial )
'
test_expect_success 'ambiguous main-worktree/HEAD' '
t1415: avoid direct filesystem access for writing refs Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-07-06 18:47:56 +00:00
test_when_finished git update-ref -d refs/heads/main-worktree/HEAD &&
git update-ref refs/heads/main-worktree/HEAD $(git rev-parse HEAD) &&
refs: new ref types to make per-worktree refs visible to all worktrees One of the problems with multiple worktree is accessing per-worktree refs of one worktree from another worktree. This was sort of solved by multiple ref store, where the code can open the ref store of another worktree and has access to the ref space of that worktree. The problem with this is reporting. "HEAD" in another ref space is also called "HEAD" like in the current ref space. In order to differentiate them, all the code must somehow carry the ref store around and print something like "HEAD from this ref store". But that is not feasible (or possible with a _lot_ of work). With the current design, we pass a reference around as a string (so called "refname"). Extending this design to pass a string _and_ a ref store is a nightmare, especially when handling extended SHA-1 syntax. So we do it another way. Instead of entering a separate ref space, we make refs from other worktrees available in the current ref space. So "HEAD" is always HEAD of the current worktree, but then we can have "worktrees/blah/HEAD" to denote HEAD from a worktree named "blah". This syntax coincidentally matches the underlying directory structure which makes implementation a bit easier. The main worktree has to be treated specially because well... it's special from the beginning. So HEAD from the main worktree is acccessible via the name "main-worktree/HEAD" instead of "worktrees/main/HEAD" because "main" could be just another secondary worktree. This patch also makes it possible to specify refs from one worktree in another one, e.g. git log worktrees/foo/HEAD Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-21 08:08:54 +00:00
git rev-parse main-worktree/HEAD 2>warn &&
grep "main-worktree/HEAD.*ambiguous" warn
'
test_expect_success 'resolve worktrees/xx/HEAD' '
test_cmp_rev worktrees/wt1/HEAD wt1 &&
( cd wt1 && test_cmp_rev worktrees/wt1/HEAD wt1 ) &&
( cd wt2 && test_cmp_rev worktrees/wt1/HEAD wt1 )
'
test_expect_success 'ambiguous worktrees/xx/HEAD' '
t1415: avoid direct filesystem access for writing refs Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-07-06 18:47:56 +00:00
git update-ref refs/heads/worktrees/wt1/HEAD $(git rev-parse HEAD) &&
test_when_finished git update-ref -d refs/heads/worktrees/wt1/HEAD &&
refs: new ref types to make per-worktree refs visible to all worktrees One of the problems with multiple worktree is accessing per-worktree refs of one worktree from another worktree. This was sort of solved by multiple ref store, where the code can open the ref store of another worktree and has access to the ref space of that worktree. The problem with this is reporting. "HEAD" in another ref space is also called "HEAD" like in the current ref space. In order to differentiate them, all the code must somehow carry the ref store around and print something like "HEAD from this ref store". But that is not feasible (or possible with a _lot_ of work). With the current design, we pass a reference around as a string (so called "refname"). Extending this design to pass a string _and_ a ref store is a nightmare, especially when handling extended SHA-1 syntax. So we do it another way. Instead of entering a separate ref space, we make refs from other worktrees available in the current ref space. So "HEAD" is always HEAD of the current worktree, but then we can have "worktrees/blah/HEAD" to denote HEAD from a worktree named "blah". This syntax coincidentally matches the underlying directory structure which makes implementation a bit easier. The main worktree has to be treated specially because well... it's special from the beginning. So HEAD from the main worktree is acccessible via the name "main-worktree/HEAD" instead of "worktrees/main/HEAD" because "main" could be just another secondary worktree. This patch also makes it possible to specify refs from one worktree in another one, e.g. git log worktrees/foo/HEAD Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-21 08:08:54 +00:00
git rev-parse worktrees/wt1/HEAD 2>warn &&
grep "worktrees/wt1/HEAD.*ambiguous" warn
'
test_expect_success 'reflog of main-worktree/HEAD' '
git reflog HEAD | sed "s/HEAD/main-worktree\/HEAD/" >expected &&
git reflog main-worktree/HEAD >actual &&
test_cmp expected actual &&
git -C wt1 reflog main-worktree/HEAD >actual.wt1 &&
test_cmp expected actual.wt1
'
test_expect_success 'reflog of worktrees/xx/HEAD' '
git -C wt2 reflog HEAD | sed "s/HEAD/worktrees\/wt2\/HEAD/" >expected &&
git reflog worktrees/wt2/HEAD >actual &&
test_cmp expected actual &&
git -C wt1 reflog worktrees/wt2/HEAD >actual.wt1 &&
test_cmp expected actual.wt1 &&
git -C wt2 reflog worktrees/wt2/HEAD >actual.wt2 &&
test_cmp expected actual.wt2
'
t1415: avoid using `main` as ref name In preparation for a patch series that will change the fall-back for `init.defaultBranch` to `main`, let's not use `main` as ref name in this test script. Otherwise, the `git for-each-ref ... | grep main` which wants to catch those refs would also unexpectedly catch `refs/heads/main`. Since the refs in question are worktree-local ones (i.e. each worktree has their own, just like `HEAD`), and since the test case already uses a secondary worktree called "second", let's use the name "first" for those refs instead. While at it, adjust the test titles that talk about a "repo" when they meant a "worktree" instead. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-08 10:13:46 +00:00
test_expect_success 'for-each-ref from main worktree' '
Make sure refs/rewritten/ is per-worktree a9be29c981 (sequencer: make refs generated by the `label` command worktree-local, 2018-04-25) adds refs/rewritten/ as per-worktree reference space. Unfortunately (my bad) there are a couple places that need update to make sure it's really per-worktree. - add_per_worktree_entries_to_dir() is updated to make sure ref listing look at per-worktree refs/rewritten/ instead of per-repo one [1] - common_list[] is updated so that git_path() returns the correct location. This includes "rev-parse --git-path". This mess is created by me. I started trying to fix it with the introduction of refs/worktree, where all refs will be per-worktree without special treatments. Unfortunate refs/rewritten came before refs/worktree so this is all we can do. This also fixes logs/refs/worktree not being per-worktree. [1] note that ref listing still works sometimes. For example, if you have .git/worktrees/foo/refs/rewritten/bar AND the directory .git/worktrees/refs/rewritten, refs/rewritten/bar will show up. add_per_worktree_entries_to_dir() is only needed when the directory .git/worktrees/refs/rewritten is missing. Reported-by: Phillip Wood <phillip.wood123@gmail.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-07 12:29:17 +00:00
mkdir fer1 &&
git -C fer1 init repo &&
test_commit -C fer1/repo initial &&
git -C fer1/repo worktree add ../second &&
t1415: avoid using `main` as ref name In preparation for a patch series that will change the fall-back for `init.defaultBranch` to `main`, let's not use `main` as ref name in this test script. Otherwise, the `git for-each-ref ... | grep main` which wants to catch those refs would also unexpectedly catch `refs/heads/main`. Since the refs in question are worktree-local ones (i.e. each worktree has their own, just like `HEAD`), and since the test case already uses a secondary worktree called "second", let's use the name "first" for those refs instead. While at it, adjust the test titles that talk about a "repo" when they meant a "worktree" instead. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-08 10:13:46 +00:00
git -C fer1/repo update-ref refs/bisect/first HEAD &&
git -C fer1/repo update-ref refs/rewritten/first HEAD &&
git -C fer1/repo update-ref refs/worktree/first HEAD &&
git -C fer1/repo for-each-ref --format="%(refname)" | grep first >actual &&
Make sure refs/rewritten/ is per-worktree a9be29c981 (sequencer: make refs generated by the `label` command worktree-local, 2018-04-25) adds refs/rewritten/ as per-worktree reference space. Unfortunately (my bad) there are a couple places that need update to make sure it's really per-worktree. - add_per_worktree_entries_to_dir() is updated to make sure ref listing look at per-worktree refs/rewritten/ instead of per-repo one [1] - common_list[] is updated so that git_path() returns the correct location. This includes "rev-parse --git-path". This mess is created by me. I started trying to fix it with the introduction of refs/worktree, where all refs will be per-worktree without special treatments. Unfortunate refs/rewritten came before refs/worktree so this is all we can do. This also fixes logs/refs/worktree not being per-worktree. [1] note that ref listing still works sometimes. For example, if you have .git/worktrees/foo/refs/rewritten/bar AND the directory .git/worktrees/refs/rewritten, refs/rewritten/bar will show up. add_per_worktree_entries_to_dir() is only needed when the directory .git/worktrees/refs/rewritten is missing. Reported-by: Phillip Wood <phillip.wood123@gmail.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-07 12:29:17 +00:00
cat >expected <<-\EOF &&
t1415: avoid using `main` as ref name In preparation for a patch series that will change the fall-back for `init.defaultBranch` to `main`, let's not use `main` as ref name in this test script. Otherwise, the `git for-each-ref ... | grep main` which wants to catch those refs would also unexpectedly catch `refs/heads/main`. Since the refs in question are worktree-local ones (i.e. each worktree has their own, just like `HEAD`), and since the test case already uses a secondary worktree called "second", let's use the name "first" for those refs instead. While at it, adjust the test titles that talk about a "repo" when they meant a "worktree" instead. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-08 10:13:46 +00:00
refs/bisect/first
refs/rewritten/first
refs/worktree/first
Make sure refs/rewritten/ is per-worktree a9be29c981 (sequencer: make refs generated by the `label` command worktree-local, 2018-04-25) adds refs/rewritten/ as per-worktree reference space. Unfortunately (my bad) there are a couple places that need update to make sure it's really per-worktree. - add_per_worktree_entries_to_dir() is updated to make sure ref listing look at per-worktree refs/rewritten/ instead of per-repo one [1] - common_list[] is updated so that git_path() returns the correct location. This includes "rev-parse --git-path". This mess is created by me. I started trying to fix it with the introduction of refs/worktree, where all refs will be per-worktree without special treatments. Unfortunate refs/rewritten came before refs/worktree so this is all we can do. This also fixes logs/refs/worktree not being per-worktree. [1] note that ref listing still works sometimes. For example, if you have .git/worktrees/foo/refs/rewritten/bar AND the directory .git/worktrees/refs/rewritten, refs/rewritten/bar will show up. add_per_worktree_entries_to_dir() is only needed when the directory .git/worktrees/refs/rewritten is missing. Reported-by: Phillip Wood <phillip.wood123@gmail.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-07 12:29:17 +00:00
EOF
test_cmp expected actual
'
t1415: avoid using `main` as ref name In preparation for a patch series that will change the fall-back for `init.defaultBranch` to `main`, let's not use `main` as ref name in this test script. Otherwise, the `git for-each-ref ... | grep main` which wants to catch those refs would also unexpectedly catch `refs/heads/main`. Since the refs in question are worktree-local ones (i.e. each worktree has their own, just like `HEAD`), and since the test case already uses a secondary worktree called "second", let's use the name "first" for those refs instead. While at it, adjust the test titles that talk about a "repo" when they meant a "worktree" instead. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-08 10:13:46 +00:00
test_expect_success 'for-each-ref from linked worktree' '
Make sure refs/rewritten/ is per-worktree a9be29c981 (sequencer: make refs generated by the `label` command worktree-local, 2018-04-25) adds refs/rewritten/ as per-worktree reference space. Unfortunately (my bad) there are a couple places that need update to make sure it's really per-worktree. - add_per_worktree_entries_to_dir() is updated to make sure ref listing look at per-worktree refs/rewritten/ instead of per-repo one [1] - common_list[] is updated so that git_path() returns the correct location. This includes "rev-parse --git-path". This mess is created by me. I started trying to fix it with the introduction of refs/worktree, where all refs will be per-worktree without special treatments. Unfortunate refs/rewritten came before refs/worktree so this is all we can do. This also fixes logs/refs/worktree not being per-worktree. [1] note that ref listing still works sometimes. For example, if you have .git/worktrees/foo/refs/rewritten/bar AND the directory .git/worktrees/refs/rewritten, refs/rewritten/bar will show up. add_per_worktree_entries_to_dir() is only needed when the directory .git/worktrees/refs/rewritten is missing. Reported-by: Phillip Wood <phillip.wood123@gmail.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-07 12:29:17 +00:00
mkdir fer2 &&
git -C fer2 init repo &&
test_commit -C fer2/repo initial &&
git -C fer2/repo worktree add ../second &&
git -C fer2/second update-ref refs/bisect/second HEAD &&
git -C fer2/second update-ref refs/rewritten/second HEAD &&
git -C fer2/second update-ref refs/worktree/second HEAD &&
git -C fer2/second for-each-ref --format="%(refname)" | grep second >actual &&
cat >expected <<-\EOF &&
refs/bisect/second
refs/heads/second
refs/rewritten/second
refs/worktree/second
EOF
test_cmp expected actual
'
Add a place for (not) sharing stuff between worktrees When multiple worktrees are used, we need rules to determine if something belongs to one worktree or all of them. Instead of keeping adding rules when new stuff comes (*), have a generic rule: - Inside $GIT_DIR, which is per-worktree by default, add $GIT_DIR/common which is always shared. New features that want to share stuff should put stuff under this directory. - Inside refs/, which is shared by default except refs/bisect, add refs/worktree/ which is per-worktree. We may eventually move refs/bisect to this new location and remove the exception in refs code. (*) And it may also include stuff from external commands which will have no way to modify common/per-worktree rules. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-09-29 19:10:23 +00:00
test_done
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