git-commit-vandalism/t/t1430-bad-ref-name.sh

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#!/bin/sh
test_description='Test handling of ref names that check-ref-format rejects'
. ./test-lib.sh
test_expect_success setup '
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
test_commit one &&
test_commit two
'
test_expect_success 'fast-import: fail on invalid branch name ".badbranchname"' '
test_when_finished "rm -f .git/objects/pack_* .git/objects/index_*" &&
cat >input <<-INPUT_END &&
commit .badbranchname
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
corrupt
COMMIT
from refs/heads/master
INPUT_END
test_must_fail git fast-import <input
'
test_expect_success 'fast-import: fail on invalid branch name "bad[branch]name"' '
test_when_finished "rm -f .git/objects/pack_* .git/objects/index_*" &&
cat >input <<-INPUT_END &&
commit bad[branch]name
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
corrupt
COMMIT
from refs/heads/master
INPUT_END
test_must_fail git fast-import <input
'
test_expect_success 'git branch shows badly named ref as warning' '
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
git branch >output 2>error &&
test_i18ngrep -e "ignoring ref with broken name refs/heads/broken\.\.\.ref" error &&
! grep -e "broken\.\.\.ref" output
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
'
test_expect_success 'branch -d can delete badly named ref' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
git branch -d broken...ref &&
git branch >output 2>error &&
! grep -e "broken\.\.\.ref" error &&
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
! grep -e "broken\.\.\.ref" output
'
test_expect_success 'branch -D can delete badly named ref' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
git branch -D broken...ref &&
git branch >output 2>error &&
! grep -e "broken\.\.\.ref" error &&
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
! grep -e "broken\.\.\.ref" output
'
test_expect_success 'branch -D cannot delete non-ref in .git dir' '
echo precious >.git/my-private-file &&
echo precious >expect &&
test_must_fail git branch -D ../../my-private-file &&
test_cmp expect .git/my-private-file
'
test_expect_success 'branch -D cannot delete ref in .git dir' '
git rev-parse HEAD >.git/my-private-file &&
git rev-parse HEAD >expect &&
git branch foo/legit &&
test_must_fail git branch -D foo////./././../../../my-private-file &&
test_cmp expect .git/my-private-file
'
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
test_expect_success 'branch -D cannot delete absolute path' '
git branch -f extra &&
test_must_fail git branch -D "$(pwd)/.git/refs/heads/extra" &&
test_cmp_rev HEAD extra
'
test_expect_success 'git branch cannot create a badly named ref' '
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
test_must_fail git branch broken...ref &&
git branch >output 2>error &&
! grep -e "broken\.\.\.ref" error &&
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
! grep -e "broken\.\.\.ref" output
'
test_expect_success 'branch -m cannot rename to a bad ref name' '
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
test_might_fail git branch -D goodref &&
git branch goodref &&
test_must_fail git branch -m goodref broken...ref &&
test_cmp_rev master goodref &&
git branch >output 2>error &&
! grep -e "broken\.\.\.ref" error &&
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
! grep -e "broken\.\.\.ref" output
'
test_expect_failure 'branch -m can rename from a bad ref name' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
git branch -m broken...ref renamed &&
test_cmp_rev master renamed &&
git branch >output 2>error &&
! grep -e "broken\.\.\.ref" error &&
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
! grep -e "broken\.\.\.ref" output
'
test_expect_success 'push cannot create a badly named ref' '
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
test_must_fail git push "file://$(pwd)" HEAD:refs/heads/broken...ref &&
git branch >output 2>error &&
! grep -e "broken\.\.\.ref" error &&
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
! grep -e "broken\.\.\.ref" output
'
test_expect_failure C_LOCALE_OUTPUT 'push --mirror can delete badly named ref' '
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
top=$(pwd) &&
git init src &&
git init dest &&
(
cd src &&
test_commit one
) &&
(
cd dest &&
test_commit two &&
git checkout --detach &&
cp .git/refs/heads/master .git/refs/heads/broken...ref
) &&
git -C src push --mirror "file://$top/dest" &&
git -C dest branch >output 2>error &&
! grep -e "broken\.\.\.ref" error &&
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
! grep -e "broken\.\.\.ref" output
'
test_expect_success 'rev-parse skips symref pointing to broken name' '
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
git branch shadow one &&
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
printf "ref: refs/heads/broken...ref\n" >.git/refs/tags/shadow &&
test_when_finished "rm -f .git/refs/tags/shadow" &&
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
git rev-parse --verify one >expect &&
git rev-parse --verify shadow >actual 2>err &&
test_cmp expect actual &&
test_i18ngrep "ignoring dangling symref refs/tags/shadow" err
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
'
test_expect_success 'for-each-ref emits warnings for broken names' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname &&
test_when_finished "rm -f .git/refs/heads/badname" &&
printf "ref: refs/heads/master\n" >.git/refs/heads/broken...symref &&
test_when_finished "rm -f .git/refs/heads/broken...symref" &&
git for-each-ref >output 2>error &&
! grep -e "broken\.\.\.ref" output &&
! grep -e "badname" output &&
! grep -e "broken\.\.\.symref" output &&
test_i18ngrep "ignoring ref with broken name refs/heads/broken\.\.\.ref" error &&
test_i18ngrep "ignoring broken ref refs/heads/badname" error &&
test_i18ngrep "ignoring ref with broken name refs/heads/broken\.\.\.symref" error
'
test_expect_success 'update-ref -d can delete broken name' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
git update-ref -d refs/heads/broken...ref >output 2>error &&
test_must_be_empty output &&
test_must_be_empty error &&
git branch >output 2>error &&
! grep -e "broken\.\.\.ref" error &&
! grep -e "broken\.\.\.ref" output
'
test_expect_success 'branch -d can delete broken name' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
git branch -d broken...ref >output 2>error &&
test_i18ngrep "Deleted branch broken...ref (was broken)" output &&
test_must_be_empty error &&
git branch >output 2>error &&
! grep -e "broken\.\.\.ref" error &&
! grep -e "broken\.\.\.ref" output
'
test_expect_success 'update-ref --no-deref -d can delete symref to broken name' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname &&
test_when_finished "rm -f .git/refs/heads/badname" &&
git update-ref --no-deref -d refs/heads/badname >output 2>error &&
test_path_is_missing .git/refs/heads/badname &&
test_must_be_empty output &&
test_must_be_empty error
'
test_expect_success 'branch -d can delete symref to broken name' '
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname &&
test_when_finished "rm -f .git/refs/heads/badname" &&
git branch -d badname >output 2>error &&
test_path_is_missing .git/refs/heads/badname &&
test_i18ngrep "Deleted branch badname (was refs/heads/broken\.\.\.ref)" output &&
test_must_be_empty error
'
test_expect_success 'update-ref --no-deref -d can delete dangling symref to broken name' '
printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname &&
test_when_finished "rm -f .git/refs/heads/badname" &&
git update-ref --no-deref -d refs/heads/badname >output 2>error &&
test_path_is_missing .git/refs/heads/badname &&
test_must_be_empty output &&
test_must_be_empty error
'
test_expect_success 'branch -d can delete dangling symref to broken name' '
printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname &&
test_when_finished "rm -f .git/refs/heads/badname" &&
git branch -d badname >output 2>error &&
test_path_is_missing .git/refs/heads/badname &&
test_i18ngrep "Deleted branch badname (was refs/heads/broken\.\.\.ref)" output &&
test_must_be_empty error
'
test_expect_success 'update-ref -d can delete broken name through symref' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname &&
test_when_finished "rm -f .git/refs/heads/badname" &&
git update-ref -d refs/heads/badname >output 2>error &&
test_path_is_missing .git/refs/heads/broken...ref &&
test_must_be_empty output &&
test_must_be_empty error
'
test_expect_success 'update-ref --no-deref -d can delete symref with broken name' '
printf "ref: refs/heads/master\n" >.git/refs/heads/broken...symref &&
test_when_finished "rm -f .git/refs/heads/broken...symref" &&
git update-ref --no-deref -d refs/heads/broken...symref >output 2>error &&
test_path_is_missing .git/refs/heads/broken...symref &&
test_must_be_empty output &&
test_must_be_empty error
'
test_expect_success 'branch -d can delete symref with broken name' '
printf "ref: refs/heads/master\n" >.git/refs/heads/broken...symref &&
test_when_finished "rm -f .git/refs/heads/broken...symref" &&
git branch -d broken...symref >output 2>error &&
test_path_is_missing .git/refs/heads/broken...symref &&
test_i18ngrep "Deleted branch broken...symref (was refs/heads/master)" output &&
test_must_be_empty error
'
test_expect_success 'update-ref --no-deref -d can delete dangling symref with broken name' '
printf "ref: refs/heads/idonotexist\n" >.git/refs/heads/broken...symref &&
test_when_finished "rm -f .git/refs/heads/broken...symref" &&
git update-ref --no-deref -d refs/heads/broken...symref >output 2>error &&
test_path_is_missing .git/refs/heads/broken...symref &&
test_must_be_empty output &&
test_must_be_empty error
'
test_expect_success 'branch -d can delete dangling symref with broken name' '
printf "ref: refs/heads/idonotexist\n" >.git/refs/heads/broken...symref &&
test_when_finished "rm -f .git/refs/heads/broken...symref" &&
git branch -d broken...symref >output 2>error &&
test_path_is_missing .git/refs/heads/broken...symref &&
test_i18ngrep "Deleted branch broken...symref (was refs/heads/idonotexist)" output &&
test_must_be_empty error
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
'
test_expect_success 'update-ref -d cannot delete non-ref in .git dir' '
echo precious >.git/my-private-file &&
echo precious >expect &&
test_must_fail git update-ref -d my-private-file >output 2>error &&
test_must_be_empty output &&
test_i18ngrep -e "refusing to update ref with bad name" error &&
refs.c: allow listing and deleting badly named refs We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 20:45:43 +02:00
test_cmp expect .git/my-private-file
'
test_expect_success 'update-ref -d cannot delete absolute path' '
git branch -f extra &&
test_must_fail git update-ref -d "$(pwd)/.git/refs/heads/extra" &&
test_cmp_rev HEAD extra
'
test_expect_success 'update-ref --stdin fails create with bad ref name' '
echo "create ~a refs/heads/master" >stdin &&
test_must_fail git update-ref --stdin <stdin 2>err &&
grep "fatal: invalid ref format: ~a" err
'
test_expect_success 'update-ref --stdin fails update with bad ref name' '
echo "update ~a refs/heads/master" >stdin &&
test_must_fail git update-ref --stdin <stdin 2>err &&
grep "fatal: invalid ref format: ~a" err
'
test_expect_success 'update-ref --stdin fails delete with bad ref name' '
echo "delete ~a refs/heads/master" >stdin &&
test_must_fail git update-ref --stdin <stdin 2>err &&
grep "fatal: invalid ref format: ~a" err
'
test_expect_success 'update-ref --stdin -z fails create with bad ref name' '
printf "%s\0" "create ~a " refs/heads/master >stdin &&
test_must_fail git update-ref -z --stdin <stdin 2>err &&
grep "fatal: invalid ref format: ~a " err
'
test_expect_success 'update-ref --stdin -z fails update with bad ref name' '
printf "%s\0" "update ~a" refs/heads/master "" >stdin &&
test_must_fail git update-ref -z --stdin <stdin 2>err &&
grep "fatal: invalid ref format: ~a" err
'
test_expect_success 'update-ref --stdin -z fails delete with bad ref name' '
printf "%s\0" "delete ~a" refs/heads/master >stdin &&
test_must_fail git update-ref -z --stdin <stdin 2>err &&
grep "fatal: invalid ref format: ~a" err
'
test_expect_success 'branch rejects HEAD as a branch name' '
test_must_fail git branch HEAD HEAD^ &&
test_must_fail git show-ref refs/heads/HEAD
'
test_expect_success 'checkout -b rejects HEAD as a branch name' '
test_must_fail git checkout -B HEAD HEAD^ &&
test_must_fail git show-ref refs/heads/HEAD
'
test_expect_success 'update-ref can operate on refs/heads/HEAD' '
git update-ref refs/heads/HEAD HEAD^ &&
git show-ref refs/heads/HEAD &&
git update-ref -d refs/heads/HEAD &&
test_must_fail git show-ref refs/heads/HEAD
'
test_expect_success 'branch -d can remove refs/heads/HEAD' '
git update-ref refs/heads/HEAD HEAD^ &&
git branch -d HEAD &&
test_must_fail git show-ref refs/heads/HEAD
'
test_expect_success 'branch -m can rename refs/heads/HEAD' '
git update-ref refs/heads/HEAD HEAD^ &&
git branch -m HEAD tail &&
test_must_fail git show-ref refs/heads/HEAD &&
git show-ref refs/heads/tail
'
test_expect_success 'branch -d can remove refs/heads/-dash' '
git update-ref refs/heads/-dash HEAD^ &&
git branch -d -- -dash &&
test_must_fail git show-ref refs/heads/-dash
'
test_expect_success 'branch -m can rename refs/heads/-dash' '
git update-ref refs/heads/-dash HEAD^ &&
git branch -m -- -dash dash &&
test_must_fail git show-ref refs/heads/-dash &&
git show-ref refs/heads/dash
'
test_done