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git/t/t3200-branch.sh
Jeff King d08565bf2d reflog-walk: stop using fake parents
The reflog-walk system works by putting a ref's tip into the
pending queue, and then "traversing" the reflog by
pretending that the parent of each commit is the previous
reflog entry.

This causes a number of user-visible oddities, as documented
in t1414 (and the commit message which introduced it). We
can fix all of them in one go by replacing the fake-reflog
system with a much simpler one: just keeping a list of
reflogs to show, and walking through them entry by entry.

The implementation is fairly straight-forward, but there are
a few items to note:

  1. We obviously must skip calling add_parents_to_list()
     when we are traversing reflogs, since we do not want to
     walk the original parents at all.  As a result, we must call
     try_to_simplify_commit() ourselves.

     There are other parts of add_parents_to_list() we skip,
     as well, but none of them should matter for a reflog
     traversal:

       -  We do not allow UNINTERESTING commits, nor
          symmetric ranges (and we bail when these are used
          with "-g").

       - Using --source makes no sense, since we aren't
         traversing. The reflog selector shows the same
         information with more detail.

       - Using --first-parent is still sensible, since you
         may want to see the first-parent diff for each
         entry. But since we're not traversing, we don't
         need to cull the parent list here.

  2. Since we now just walk the reflog entries themselves,
     rather than starting with the ref tip, we now look at
     the "new" field of each entry rather than the "old"
     (i.e., we are showing entries, not faking parents).
     This removes all of the tricky logic around skipping
     past root commits.

     But note that we have no way to show an entry with the
     null sha1 in its "new" field (because such a commit
     obviously does not exist). Normally this would not
     happen, since we delete reflogs along with refs, but
     there is one special case. When we rename the currently
     checked out branch, we write two reflog entries into
     the HEAD log: one where the commit goes away, and
     another where it comes back.

     Prior to this commit, we show both entries with
     identical reflog messages. After this commit, we show
     only the "comes back" entry. See the update in t3200
     which demonstrates this.

     Arguably either is fine, as the whole double-entry
     thing is a bit hacky in the first place. And until a
     recent fix, we truncated the traversal in such a case
     anyway, which was _definitely_ wrong.

  3. We show individual reflogs in order, but choose which
     reflog to show at each stage based on which has the
     most recent timestamp.  This interleaves the output
     from multiple reflogs based on date order, which is
     probably what you'd want with limiting like "-n 30".

     Note that the implementation aims for simplicity. It
     does a linear walk over the reflog queue for each
     commit it pulls, which may perform badly if you
     interleave an enormous number of reflogs. That seems
     like an unlikely use case; if we did want to handle it,
     we could probably keep a priority queue of reflogs,
     ordered by the timestamp of their current tip entry.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-09 10:00:48 -07:00

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#!/bin/sh
#
# Copyright (c) 2005 Amos Waterland
#
test_description='git branch assorted tests'
. ./test-lib.sh
test_expect_success 'prepare a trivial repository' '
echo Hello >A &&
git update-index --add A &&
git commit -m "Initial commit." &&
echo World >>A &&
git update-index --add A &&
git commit -m "Second commit." &&
HEAD=$(git rev-parse --verify HEAD)
'
test_expect_success 'git branch --help should not have created a bogus branch' '
test_might_fail git branch --man --help </dev/null >/dev/null 2>&1 &&
test_path_is_missing .git/refs/heads/--help
'
test_expect_success 'branch -h in broken repository' '
mkdir broken &&
(
cd broken &&
git init &&
>.git/refs/heads/master &&
test_expect_code 129 git branch -h >usage 2>&1
) &&
test_i18ngrep "[Uu]sage" broken/usage
'
test_expect_success 'git branch abc should create a branch' '
git branch abc && test_path_is_file .git/refs/heads/abc
'
test_expect_success 'git branch a/b/c should create a branch' '
git branch a/b/c && test_path_is_file .git/refs/heads/a/b/c
'
test_expect_success 'git branch HEAD should fail' '
test_must_fail git branch HEAD
'
cat >expect <<EOF
$_z40 $HEAD $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150200 +0000 branch: Created from master
EOF
test_expect_success 'git branch -l d/e/f should create a branch and a log' '
GIT_COMMITTER_DATE="2005-05-26 23:30" \
git branch -l d/e/f &&
test_path_is_file .git/refs/heads/d/e/f &&
test_path_is_file .git/logs/refs/heads/d/e/f &&
test_cmp expect .git/logs/refs/heads/d/e/f
'
test_expect_success 'git branch -d d/e/f should delete a branch and a log' '
git branch -d d/e/f &&
test_path_is_missing .git/refs/heads/d/e/f &&
test_must_fail git reflog exists refs/heads/d/e/f
'
test_expect_success 'git branch j/k should work after branch j has been deleted' '
git branch j &&
git branch -d j &&
git branch j/k
'
test_expect_success 'git branch l should work after branch l/m has been deleted' '
git branch l/m &&
git branch -d l/m &&
git branch l
'
test_expect_success 'git branch -m dumps usage' '
test_expect_code 128 git branch -m 2>err &&
test_i18ngrep "branch name required" err
'
test_expect_success 'git branch -m m broken_symref should work' '
test_when_finished "git branch -D broken_symref" &&
git branch -l m &&
git symbolic-ref refs/heads/broken_symref refs/heads/i_am_broken &&
git branch -m m broken_symref &&
git reflog exists refs/heads/broken_symref &&
test_must_fail git reflog exists refs/heads/i_am_broken
'
test_expect_success 'git branch -m m m/m should work' '
git branch -l m &&
git branch -m m m/m &&
git reflog exists refs/heads/m/m
'
test_expect_success 'git branch -m n/n n should work' '
git branch -l n/n &&
git branch -m n/n n &&
git reflog exists refs/heads/n
'
# The topmost entry in reflog for branch bbb is about branch creation.
# Hence, we compare bbb@{1} (instead of bbb@{0}) with aaa@{0}.
test_expect_success 'git branch -m bbb should rename checked out branch' '
test_when_finished git branch -D bbb &&
test_when_finished git checkout master &&
git checkout -b aaa &&
git commit --allow-empty -m "a new commit" &&
git rev-parse aaa@{0} >expect &&
git branch -m bbb &&
git rev-parse bbb@{1} >actual &&
test_cmp expect actual &&
git symbolic-ref HEAD >actual &&
echo refs/heads/bbb >expect &&
test_cmp expect actual
'
test_expect_success 'git branch -m o/o o should fail when o/p exists' '
git branch o/o &&
git branch o/p &&
test_must_fail git branch -m o/o o
'
test_expect_success 'git branch -m o/q o/p should fail when o/p exists' '
git branch o/q &&
test_must_fail git branch -m o/q o/p
'
test_expect_success 'git branch -M o/q o/p should work when o/p exists' '
git branch -M o/q o/p
'
test_expect_success 'git branch -m -f o/q o/p should work when o/p exists' '
git branch o/q &&
git branch -m -f o/q o/p
'
test_expect_success 'git branch -m q r/q should fail when r exists' '
git branch q &&
git branch r &&
test_must_fail git branch -m q r/q
'
test_expect_success 'git branch -M foo bar should fail when bar is checked out' '
git branch bar &&
git checkout -b foo &&
test_must_fail git branch -M bar foo
'
test_expect_success 'git branch -M baz bam should succeed when baz is checked out' '
git checkout -b baz &&
git branch bam &&
git branch -M baz bam &&
test $(git rev-parse --abbrev-ref HEAD) = bam
'
test_expect_success 'git branch -M baz bam should add entries to .git/logs/HEAD' '
msg="Branch: renamed refs/heads/baz to refs/heads/bam" &&
grep " 0\{40\}.*$msg$" .git/logs/HEAD &&
grep "^0\{40\}.*$msg$" .git/logs/HEAD
'
test_expect_success 'resulting reflog can be shown by log -g' '
oid=$(git rev-parse HEAD) &&
cat >expect <<-EOF &&
HEAD@{0} $oid $msg
HEAD@{2} $oid checkout: moving from foo to baz
EOF
git log -g --format="%gd %H %gs" -2 HEAD >actual &&
test_cmp expect actual
'
test_expect_success 'git branch -M baz bam should succeed when baz is checked out as linked working tree' '
git checkout master &&
git worktree add -b baz bazdir &&
git worktree add -f bazdir2 baz &&
git branch -M baz bam &&
test $(git -C bazdir rev-parse --abbrev-ref HEAD) = bam &&
test $(git -C bazdir2 rev-parse --abbrev-ref HEAD) = bam
'
test_expect_success 'git branch -M baz bam should succeed within a worktree in which baz is checked out' '
git checkout -b baz &&
git worktree add -f bazdir3 baz &&
(
cd bazdir3 &&
git branch -M baz bam &&
test $(git rev-parse --abbrev-ref HEAD) = bam
) &&
test $(git rev-parse --abbrev-ref HEAD) = bam
'
test_expect_success 'git branch -M master should work when master is checked out' '
git checkout master &&
git branch -M master
'
test_expect_success 'git branch -M master master should work when master is checked out' '
git checkout master &&
git branch -M master master
'
test_expect_success 'git branch -M master2 master2 should work when master is checked out' '
git checkout master &&
git branch master2 &&
git branch -M master2 master2
'
test_expect_success 'git branch -v -d t should work' '
git branch t &&
test_path_is_file .git/refs/heads/t &&
git branch -v -d t &&
test_path_is_missing .git/refs/heads/t
'
test_expect_success 'git branch -v -m t s should work' '
git branch t &&
test_path_is_file .git/refs/heads/t &&
git branch -v -m t s &&
test_path_is_missing .git/refs/heads/t &&
test_path_is_file .git/refs/heads/s &&
git branch -d s
'
test_expect_success 'git branch -m -d t s should fail' '
git branch t &&
test_path_is_file .git/refs/heads/t &&
test_must_fail git branch -m -d t s &&
git branch -d t &&
test_path_is_missing .git/refs/heads/t
'
test_expect_success 'git branch --list -d t should fail' '
git branch t &&
test_path_is_file .git/refs/heads/t &&
test_must_fail git branch --list -d t &&
git branch -d t &&
test_path_is_missing .git/refs/heads/t
'
test_expect_success 'git branch --list -v with --abbrev' '
test_when_finished "git branch -D t" &&
git branch t &&
git branch -v --list t >actual.default &&
git branch -v --list --abbrev t >actual.abbrev &&
test_cmp actual.default actual.abbrev &&
git branch -v --list --no-abbrev t >actual.noabbrev &&
git branch -v --list --abbrev=0 t >actual.0abbrev &&
test_cmp actual.noabbrev actual.0abbrev &&
git branch -v --list --abbrev=36 t >actual.36abbrev &&
# how many hexdigits are used?
read name objdefault rest <actual.abbrev &&
read name obj36 rest <actual.36abbrev &&
objfull=$(git rev-parse --verify t) &&
# are we really getting abbreviations?
test "$obj36" != "$objdefault" &&
expr "$obj36" : "$objdefault" >/dev/null &&
test "$objfull" != "$obj36" &&
expr "$objfull" : "$obj36" >/dev/null
'
test_expect_success 'git branch --column' '
COLUMNS=81 git branch --column=column >actual &&
cat >expected <<\EOF &&
a/b/c bam foo l * master n o/p r
abc bar j/k m/m master2 o/o q
EOF
test_cmp expected actual
'
test_expect_success 'git branch --column with an extremely long branch name' '
long=this/is/a/part/of/long/branch/name &&
long=z$long/$long/$long/$long &&
test_when_finished "git branch -d $long" &&
git branch $long &&
COLUMNS=80 git branch --column=column >actual &&
cat >expected <<EOF &&
a/b/c
abc
bam
bar
foo
j/k
l
m/m
* master
master2
n
o/o
o/p
q
r
$long
EOF
test_cmp expected actual
'
test_expect_success 'git branch with column.*' '
git config column.ui column &&
git config column.branch "dense" &&
COLUMNS=80 git branch >actual &&
git config --unset column.branch &&
git config --unset column.ui &&
cat >expected <<\EOF &&
a/b/c bam foo l * master n o/p r
abc bar j/k m/m master2 o/o q
EOF
test_cmp expected actual
'
test_expect_success 'git branch --column -v should fail' '
test_must_fail git branch --column -v
'
test_expect_success 'git branch -v with column.ui ignored' '
git config column.ui column &&
COLUMNS=80 git branch -v | cut -c -10 | sed "s/ *$//" >actual &&
git config --unset column.ui &&
cat >expected <<\EOF &&
a/b/c
abc
bam
bar
foo
j/k
l
m/m
* master
master2
n
o/o
o/p
q
r
EOF
test_cmp expected actual
'
mv .git/config .git/config-saved
test_expect_success 'git branch -m q q2 without config should succeed' '
git branch -m q q2 &&
git branch -m q2 q
'
mv .git/config-saved .git/config
git config branch.s/s.dummy Hello
test_expect_success 'git branch -m s/s s should work when s/t is deleted' '
git branch -l s/s &&
git reflog exists refs/heads/s/s &&
git branch -l s/t &&
git reflog exists refs/heads/s/t &&
git branch -d s/t &&
git branch -m s/s s &&
git reflog exists refs/heads/s
'
test_expect_success 'config information was renamed, too' '
test $(git config branch.s.dummy) = Hello &&
test_must_fail git config branch.s/s.dummy
'
test_expect_success 'deleting a symref' '
git branch target &&
git symbolic-ref refs/heads/symref refs/heads/target &&
echo "Deleted branch symref (was refs/heads/target)." >expect &&
git branch -d symref >actual &&
test_path_is_file .git/refs/heads/target &&
test_path_is_missing .git/refs/heads/symref &&
test_i18ncmp expect actual
'
test_expect_success 'deleting a dangling symref' '
git symbolic-ref refs/heads/dangling-symref nowhere &&
test_path_is_file .git/refs/heads/dangling-symref &&
echo "Deleted branch dangling-symref (was nowhere)." >expect &&
git branch -d dangling-symref >actual &&
test_path_is_missing .git/refs/heads/dangling-symref &&
test_i18ncmp expect actual
'
test_expect_success 'deleting a self-referential symref' '
git symbolic-ref refs/heads/self-reference refs/heads/self-reference &&
test_path_is_file .git/refs/heads/self-reference &&
echo "Deleted branch self-reference (was refs/heads/self-reference)." >expect &&
git branch -d self-reference >actual &&
test_path_is_missing .git/refs/heads/self-reference &&
test_i18ncmp expect actual
'
test_expect_success 'renaming a symref is not allowed' '
git symbolic-ref refs/heads/master2 refs/heads/master &&
test_must_fail git branch -m master2 master3 &&
git symbolic-ref refs/heads/master2 &&
test_path_is_file .git/refs/heads/master &&
test_path_is_missing .git/refs/heads/master3
'
test_expect_success SYMLINKS 'git branch -m u v should fail when the reflog for u is a symlink' '
git branch -l u &&
mv .git/logs/refs/heads/u real-u &&
ln -s real-u .git/logs/refs/heads/u &&
test_must_fail git branch -m u v
'
test_expect_success 'test tracking setup via --track' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --track my1 local/master &&
test $(git config branch.my1.remote) = local &&
test $(git config branch.my1.merge) = refs/heads/master
'
test_expect_success 'test tracking setup (non-wildcard, matching)' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/master:refs/remotes/local/master &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --track my4 local/master &&
test $(git config branch.my4.remote) = local &&
test $(git config branch.my4.merge) = refs/heads/master
'
test_expect_success 'tracking setup fails on non-matching refspec' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git config remote.local.fetch refs/heads/s:refs/remotes/local/s &&
test_must_fail git branch --track my5 local/master &&
test_must_fail git config branch.my5.remote &&
test_must_fail git config branch.my5.merge
'
test_expect_success 'test tracking setup via config' '
git config branch.autosetupmerge true &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch my3 local/master &&
test $(git config branch.my3.remote) = local &&
test $(git config branch.my3.merge) = refs/heads/master
'
test_expect_success 'test overriding tracking setup via --no-track' '
git config branch.autosetupmerge true &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --no-track my2 local/master &&
git config branch.autosetupmerge false &&
! test "$(git config branch.my2.remote)" = local &&
! test "$(git config branch.my2.merge)" = refs/heads/master
'
test_expect_success 'no tracking without .fetch entries' '
git config branch.autosetupmerge true &&
git branch my6 s &&
git config branch.autosetupmerge false &&
test -z "$(git config branch.my6.remote)" &&
test -z "$(git config branch.my6.merge)"
'
test_expect_success 'test tracking setup via --track but deeper' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/o/o || git fetch local) &&
git branch --track my7 local/o/o &&
test "$(git config branch.my7.remote)" = local &&
test "$(git config branch.my7.merge)" = refs/heads/o/o
'
test_expect_success 'test deleting branch deletes branch config' '
git branch -d my7 &&
test -z "$(git config branch.my7.remote)" &&
test -z "$(git config branch.my7.merge)"
'
test_expect_success 'test deleting branch without config' '
git branch my7 s &&
sha1=$(git rev-parse my7 | cut -c 1-7) &&
echo "Deleted branch my7 (was $sha1)." >expect &&
git branch -d my7 >actual 2>&1 &&
test_i18ncmp expect actual
'
test_expect_success 'deleting currently checked out branch fails' '
git worktree add -b my7 my7 &&
test_must_fail git -C my7 branch -d my7 &&
test_must_fail git branch -d my7
'
test_expect_success 'test --track without .fetch entries' '
git branch --track my8 &&
test "$(git config branch.my8.remote)" &&
test "$(git config branch.my8.merge)"
'
test_expect_success 'branch from non-branch HEAD w/autosetupmerge=always' '
git config branch.autosetupmerge always &&
git branch my9 HEAD^ &&
git config branch.autosetupmerge false
'
test_expect_success 'branch from non-branch HEAD w/--track causes failure' '
test_must_fail git branch --track my10 HEAD^
'
test_expect_success 'branch from tag w/--track causes failure' '
git tag foobar &&
test_must_fail git branch --track my11 foobar
'
test_expect_success '--set-upstream-to fails on multiple branches' '
test_must_fail git branch --set-upstream-to master a b c
'
test_expect_success '--set-upstream-to fails on detached HEAD' '
git checkout HEAD^{} &&
test_must_fail git branch --set-upstream-to master &&
git checkout -
'
test_expect_success '--set-upstream-to fails on a missing dst branch' '
test_must_fail git branch --set-upstream-to master does-not-exist
'
test_expect_success '--set-upstream-to fails on a missing src branch' '
test_must_fail git branch --set-upstream-to does-not-exist master
'
test_expect_success '--set-upstream-to fails on a non-ref' '
test_must_fail git branch --set-upstream-to HEAD^{}
'
test_expect_success '--set-upstream-to fails on locked config' '
test_when_finished "rm -f .git/config.lock" &&
>.git/config.lock &&
git branch locked &&
test_must_fail git branch --set-upstream-to locked
'
test_expect_success 'use --set-upstream-to modify HEAD' '
test_config branch.master.remote foo &&
test_config branch.master.merge foo &&
git branch my12 &&
git branch --set-upstream-to my12 &&
test "$(git config branch.master.remote)" = "." &&
test "$(git config branch.master.merge)" = "refs/heads/my12"
'
test_expect_success 'use --set-upstream-to modify a particular branch' '
git branch my13 &&
git branch --set-upstream-to master my13 &&
test "$(git config branch.my13.remote)" = "." &&
test "$(git config branch.my13.merge)" = "refs/heads/master"
'
test_expect_success '--unset-upstream should fail if given a non-existent branch' '
test_must_fail git branch --unset-upstream i-dont-exist
'
test_expect_success '--unset-upstream should fail if config is locked' '
test_when_finished "rm -f .git/config.lock" &&
git branch --set-upstream-to locked &&
>.git/config.lock &&
test_must_fail git branch --unset-upstream
'
test_expect_success 'test --unset-upstream on HEAD' '
git branch my14 &&
test_config branch.master.remote foo &&
test_config branch.master.merge foo &&
git branch --set-upstream-to my14 &&
git branch --unset-upstream &&
test_must_fail git config branch.master.remote &&
test_must_fail git config branch.master.merge &&
# fail for a branch without upstream set
test_must_fail git branch --unset-upstream
'
test_expect_success '--unset-upstream should fail on multiple branches' '
test_must_fail git branch --unset-upstream a b c
'
test_expect_success '--unset-upstream should fail on detached HEAD' '
git checkout HEAD^{} &&
test_must_fail git branch --unset-upstream &&
git checkout -
'
test_expect_success 'test --unset-upstream on a particular branch' '
git branch my15 &&
git branch --set-upstream-to master my14 &&
git branch --unset-upstream my14 &&
test_must_fail git config branch.my14.remote &&
test_must_fail git config branch.my14.merge
'
test_expect_success '--set-upstream shows message when creating a new branch that exists as remote-tracking' '
git update-ref refs/remotes/origin/master HEAD &&
git branch --set-upstream origin/master 2>actual &&
test_when_finished git update-ref -d refs/remotes/origin/master &&
test_when_finished git branch -d origin/master &&
cat >expected <<EOF &&
The --set-upstream flag is deprecated and will be removed. Consider using --track or --set-upstream-to
If you wanted to make '"'master'"' track '"'origin/master'"', do this:
git branch -d origin/master
git branch --set-upstream-to origin/master
EOF
test_i18ncmp expected actual
'
test_expect_success '--set-upstream with two args only shows the deprecation message' '
git branch --set-upstream master my13 2>actual &&
test_when_finished git branch --unset-upstream master &&
cat >expected <<EOF &&
The --set-upstream flag is deprecated and will be removed. Consider using --track or --set-upstream-to
EOF
test_i18ncmp expected actual
'
test_expect_success '--set-upstream with one arg only shows the deprecation message if the branch existed' '
git branch --set-upstream my13 2>actual &&
test_when_finished git branch --unset-upstream my13 &&
cat >expected <<EOF &&
The --set-upstream flag is deprecated and will be removed. Consider using --track or --set-upstream-to
EOF
test_i18ncmp expected actual
'
test_expect_success '--set-upstream-to notices an error to set branch as own upstream' '
git branch --set-upstream-to refs/heads/my13 my13 2>actual &&
cat >expected <<-\EOF &&
warning: Not setting branch my13 as its own upstream.
EOF
test_expect_code 1 git config branch.my13.remote &&
test_expect_code 1 git config branch.my13.merge &&
test_i18ncmp expected actual
'
# Keep this test last, as it changes the current branch
cat >expect <<EOF
$_z40 $HEAD $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150200 +0000 branch: Created from master
EOF
test_expect_success 'git checkout -b g/h/i -l should create a branch and a log' '
GIT_COMMITTER_DATE="2005-05-26 23:30" \
git checkout -b g/h/i -l master &&
test_path_is_file .git/refs/heads/g/h/i &&
test_path_is_file .git/logs/refs/heads/g/h/i &&
test_cmp expect .git/logs/refs/heads/g/h/i
'
test_expect_success 'checkout -b makes reflog by default' '
git checkout master &&
git config --unset core.logAllRefUpdates &&
git checkout -b alpha &&
git rev-parse --verify alpha@{0}
'
test_expect_success 'checkout -b does not make reflog when core.logAllRefUpdates = false' '
git checkout master &&
git config core.logAllRefUpdates false &&
git checkout -b beta &&
test_must_fail git rev-parse --verify beta@{0}
'
test_expect_success 'checkout -b with -l makes reflog when core.logAllRefUpdates = false' '
git checkout master &&
git checkout -lb gamma &&
git config --unset core.logAllRefUpdates &&
git rev-parse --verify gamma@{0}
'
test_expect_success 'avoid ambiguous track' '
git config branch.autosetupmerge true &&
git config remote.ambi1.url lalala &&
git config remote.ambi1.fetch refs/heads/lalala:refs/heads/master &&
git config remote.ambi2.url lilili &&
git config remote.ambi2.fetch refs/heads/lilili:refs/heads/master &&
test_must_fail git branch all1 master &&
test -z "$(git config branch.all1.merge)"
'
test_expect_success 'autosetuprebase local on a tracked local branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase local &&
(git show-ref -q refs/remotes/local/o || git fetch local) &&
git branch mybase &&
git branch --track myr1 mybase &&
test "$(git config branch.myr1.remote)" = . &&
test "$(git config branch.myr1.merge)" = refs/heads/mybase &&
test "$(git config branch.myr1.rebase)" = true
'
test_expect_success 'autosetuprebase always on a tracked local branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase always &&
(git show-ref -q refs/remotes/local/o || git fetch local) &&
git branch mybase2 &&
git branch --track myr2 mybase &&
test "$(git config branch.myr2.remote)" = . &&
test "$(git config branch.myr2.merge)" = refs/heads/mybase &&
test "$(git config branch.myr2.rebase)" = true
'
test_expect_success 'autosetuprebase remote on a tracked local branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase remote &&
(git show-ref -q refs/remotes/local/o || git fetch local) &&
git branch mybase3 &&
git branch --track myr3 mybase2 &&
test "$(git config branch.myr3.remote)" = . &&
test "$(git config branch.myr3.merge)" = refs/heads/mybase2 &&
! test "$(git config branch.myr3.rebase)" = true
'
test_expect_success 'autosetuprebase never on a tracked local branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase never &&
(git show-ref -q refs/remotes/local/o || git fetch local) &&
git branch mybase4 &&
git branch --track myr4 mybase2 &&
test "$(git config branch.myr4.remote)" = . &&
test "$(git config branch.myr4.merge)" = refs/heads/mybase2 &&
! test "$(git config branch.myr4.rebase)" = true
'
test_expect_success 'autosetuprebase local on a tracked remote branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase local &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --track myr5 local/master &&
test "$(git config branch.myr5.remote)" = local &&
test "$(git config branch.myr5.merge)" = refs/heads/master &&
! test "$(git config branch.myr5.rebase)" = true
'
test_expect_success 'autosetuprebase never on a tracked remote branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase never &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --track myr6 local/master &&
test "$(git config branch.myr6.remote)" = local &&
test "$(git config branch.myr6.merge)" = refs/heads/master &&
! test "$(git config branch.myr6.rebase)" = true
'
test_expect_success 'autosetuprebase remote on a tracked remote branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase remote &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --track myr7 local/master &&
test "$(git config branch.myr7.remote)" = local &&
test "$(git config branch.myr7.merge)" = refs/heads/master &&
test "$(git config branch.myr7.rebase)" = true
'
test_expect_success 'autosetuprebase always on a tracked remote branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase remote &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --track myr8 local/master &&
test "$(git config branch.myr8.remote)" = local &&
test "$(git config branch.myr8.merge)" = refs/heads/master &&
test "$(git config branch.myr8.rebase)" = true
'
test_expect_success 'autosetuprebase unconfigured on a tracked remote branch' '
git config --unset branch.autosetuprebase &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --track myr9 local/master &&
test "$(git config branch.myr9.remote)" = local &&
test "$(git config branch.myr9.merge)" = refs/heads/master &&
test "z$(git config branch.myr9.rebase)" = z
'
test_expect_success 'autosetuprebase unconfigured on a tracked local branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/o || git fetch local) &&
git branch mybase10 &&
git branch --track myr10 mybase2 &&
test "$(git config branch.myr10.remote)" = . &&
test "$(git config branch.myr10.merge)" = refs/heads/mybase2 &&
test "z$(git config branch.myr10.rebase)" = z
'
test_expect_success 'autosetuprebase unconfigured on untracked local branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --no-track myr11 mybase2 &&
test "z$(git config branch.myr11.remote)" = z &&
test "z$(git config branch.myr11.merge)" = z &&
test "z$(git config branch.myr11.rebase)" = z
'
test_expect_success 'autosetuprebase unconfigured on untracked remote branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --no-track myr12 local/master &&
test "z$(git config branch.myr12.remote)" = z &&
test "z$(git config branch.myr12.merge)" = z &&
test "z$(git config branch.myr12.rebase)" = z
'
test_expect_success 'autosetuprebase never on an untracked local branch' '
git config branch.autosetuprebase never &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --no-track myr13 mybase2 &&
test "z$(git config branch.myr13.remote)" = z &&
test "z$(git config branch.myr13.merge)" = z &&
test "z$(git config branch.myr13.rebase)" = z
'
test_expect_success 'autosetuprebase local on an untracked local branch' '
git config branch.autosetuprebase local &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --no-track myr14 mybase2 &&
test "z$(git config branch.myr14.remote)" = z &&
test "z$(git config branch.myr14.merge)" = z &&
test "z$(git config branch.myr14.rebase)" = z
'
test_expect_success 'autosetuprebase remote on an untracked local branch' '
git config branch.autosetuprebase remote &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --no-track myr15 mybase2 &&
test "z$(git config branch.myr15.remote)" = z &&
test "z$(git config branch.myr15.merge)" = z &&
test "z$(git config branch.myr15.rebase)" = z
'
test_expect_success 'autosetuprebase always on an untracked local branch' '
git config branch.autosetuprebase always &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --no-track myr16 mybase2 &&
test "z$(git config branch.myr16.remote)" = z &&
test "z$(git config branch.myr16.merge)" = z &&
test "z$(git config branch.myr16.rebase)" = z
'
test_expect_success 'autosetuprebase never on an untracked remote branch' '
git config branch.autosetuprebase never &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --no-track myr17 local/master &&
test "z$(git config branch.myr17.remote)" = z &&
test "z$(git config branch.myr17.merge)" = z &&
test "z$(git config branch.myr17.rebase)" = z
'
test_expect_success 'autosetuprebase local on an untracked remote branch' '
git config branch.autosetuprebase local &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --no-track myr18 local/master &&
test "z$(git config branch.myr18.remote)" = z &&
test "z$(git config branch.myr18.merge)" = z &&
test "z$(git config branch.myr18.rebase)" = z
'
test_expect_success 'autosetuprebase remote on an untracked remote branch' '
git config branch.autosetuprebase remote &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --no-track myr19 local/master &&
test "z$(git config branch.myr19.remote)" = z &&
test "z$(git config branch.myr19.merge)" = z &&
test "z$(git config branch.myr19.rebase)" = z
'
test_expect_success 'autosetuprebase always on an untracked remote branch' '
git config branch.autosetuprebase always &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git fetch local) &&
git branch --no-track myr20 local/master &&
test "z$(git config branch.myr20.remote)" = z &&
test "z$(git config branch.myr20.merge)" = z &&
test "z$(git config branch.myr20.rebase)" = z
'
test_expect_success 'autosetuprebase always on detached HEAD' '
git config branch.autosetupmerge always &&
test_when_finished git checkout master &&
git checkout HEAD^0 &&
git branch my11 &&
test -z "$(git config branch.my11.remote)" &&
test -z "$(git config branch.my11.merge)"
'
test_expect_success 'detect misconfigured autosetuprebase (bad value)' '
git config branch.autosetuprebase garbage &&
test_must_fail git branch
'
test_expect_success 'detect misconfigured autosetuprebase (no value)' '
git config --unset branch.autosetuprebase &&
echo "[branch] autosetuprebase" >>.git/config &&
test_must_fail git branch &&
git config --unset branch.autosetuprebase
'
test_expect_success 'attempt to delete a branch without base and unmerged to HEAD' '
git checkout my9 &&
git config --unset branch.my8.merge &&
test_must_fail git branch -d my8
'
test_expect_success 'attempt to delete a branch merged to its base' '
# we are on my9 which is the initial commit; traditionally
# we would not have allowed deleting my8 that is not merged
# to my9, but it is set to track master that already has my8
git config branch.my8.merge refs/heads/master &&
git branch -d my8
'
test_expect_success 'attempt to delete a branch merged to its base' '
git checkout master &&
echo Third >>A &&
git commit -m "Third commit" A &&
git branch -t my10 my9 &&
git branch -f my10 HEAD^ &&
# we are on master which is at the third commit, and my10
# is behind us, so traditionally we would have allowed deleting
# it; but my10 is set to track my9 that is further behind.
test_must_fail git branch -d my10
'
test_expect_success 'use set-upstream on the current branch' '
git checkout master &&
git --bare init myupstream.git &&
git push myupstream.git master:refs/heads/frotz &&
git remote add origin myupstream.git &&
git fetch &&
git branch --set-upstream master origin/frotz &&
test "z$(git config branch.master.remote)" = "zorigin" &&
test "z$(git config branch.master.merge)" = "zrefs/heads/frotz"
'
test_expect_success 'use --edit-description' '
write_script editor <<-\EOF &&
echo "New contents" >"$1"
EOF
EDITOR=./editor git branch --edit-description &&
write_script editor <<-\EOF &&
git stripspace -s <"$1" >"EDITOR_OUTPUT"
EOF
EDITOR=./editor git branch --edit-description &&
echo "New contents" >expect &&
test_cmp EDITOR_OUTPUT expect
'
test_expect_success 'detect typo in branch name when using --edit-description' '
write_script editor <<-\EOF &&
echo "New contents" >"$1"
EOF
test_must_fail env EDITOR=./editor git branch --edit-description no-such-branch
'
test_expect_success 'refuse --edit-description on unborn branch for now' '
write_script editor <<-\EOF &&
echo "New contents" >"$1"
EOF
git checkout --orphan unborn &&
test_must_fail env EDITOR=./editor git branch --edit-description
'
test_expect_success '--merged catches invalid object names' '
test_must_fail git branch --merged 0000000000000000000000000000000000000000
'
test_expect_success '--merged is incompatible with --no-merged' '
test_must_fail git branch --merged HEAD --no-merged HEAD
'
test_expect_success 'tracking with unexpected .fetch refspec' '
rm -rf a b c d &&
git init a &&
(
cd a &&
test_commit a
) &&
git init b &&
(
cd b &&
test_commit b
) &&
git init c &&
(
cd c &&
test_commit c &&
git remote add a ../a &&
git remote add b ../b &&
git fetch --all
) &&
git init d &&
(
cd d &&
git remote add c ../c &&
git config remote.c.fetch "+refs/remotes/*:refs/remotes/*" &&
git fetch c &&
git branch --track local/a/master remotes/a/master &&
test "$(git config branch.local/a/master.remote)" = "c" &&
test "$(git config branch.local/a/master.merge)" = "refs/remotes/a/master" &&
git rev-parse --verify a >expect &&
git rev-parse --verify local/a/master >actual &&
test_cmp expect actual
)
'
test_done