From c998b381477953361c8bf180871ecd6b57ff94ea Mon Sep 17 00:00:00 2001 From: Paul Tan Date: Mon, 18 May 2015 21:32:51 +0800 Subject: [PATCH 1/8] t5520: prevent field splitting in content comparisons Many tests in t5520 used the following to test the contents of files: test `cat file` = expected or test $(cat file) = expected These 2 forms, however, will be affected by field splitting and, depending on the value of $IFS, may be split into multiple arguments, making the test fail in mysterious ways. Replace the above 2 forms with: test "$(cat file)" = expected as quoting the command substitution will prevent field splitting. Signed-off-by: Paul Tan Signed-off-by: Junio C Hamano --- t/t5520-pull.sh | 70 ++++++++++++++++++++++++------------------------- 1 file changed, 35 insertions(+), 35 deletions(-) diff --git a/t/t5520-pull.sh b/t/t5520-pull.sh index 7efd45bc27..5e4db67b01 100755 --- a/t/t5520-pull.sh +++ b/t/t5520-pull.sh @@ -93,9 +93,9 @@ test_expect_success 'test . as a remote' ' echo updated >file && git commit -a -m updated && git checkout copy && - test `cat file` = file && + test "$(cat file)" = file && git pull && - test `cat file` = updated + test "$(cat file)" = updated ' test_expect_success 'the default remote . should not break explicit pull' ' @@ -104,9 +104,9 @@ test_expect_success 'the default remote . should not break explicit pull' ' git commit -a -m modified && git checkout copy && git reset --hard HEAD^ && - test `cat file` = file && + test "$(cat file)" = file && git pull . second && - test `cat file` = modified + test "$(cat file)" = modified ' test_expect_success '--rebase' ' @@ -119,23 +119,23 @@ test_expect_success '--rebase' ' git commit -m "new file" && git tag before-rebase && git pull --rebase . copy && - test $(git rev-parse HEAD^) = $(git rev-parse copy) && - test new = $(git show HEAD:file2) + test "$(git rev-parse HEAD^)" = "$(git rev-parse copy)" && + test new = "$(git show HEAD:file2)" ' test_expect_success 'pull.rebase' ' git reset --hard before-rebase && test_config pull.rebase true && git pull . copy && - test $(git rev-parse HEAD^) = $(git rev-parse copy) && - test new = $(git show HEAD:file2) + test "$(git rev-parse HEAD^)" = "$(git rev-parse copy)" && + test new = "$(git show HEAD:file2)" ' test_expect_success 'branch.to-rebase.rebase' ' git reset --hard before-rebase && test_config branch.to-rebase.rebase true && git pull . copy && - test $(git rev-parse HEAD^) = $(git rev-parse copy) && - test new = $(git show HEAD:file2) + test "$(git rev-parse HEAD^)" = "$(git rev-parse copy)" && + test new = "$(git show HEAD:file2)" ' test_expect_success 'branch.to-rebase.rebase should override pull.rebase' ' @@ -143,8 +143,8 @@ test_expect_success 'branch.to-rebase.rebase should override pull.rebase' ' test_config pull.rebase true && test_config branch.to-rebase.rebase false && git pull . copy && - test $(git rev-parse HEAD^) != $(git rev-parse copy) && - test new = $(git show HEAD:file2) + test "$(git rev-parse HEAD^)" != "$(git rev-parse copy)" && + test new = "$(git show HEAD:file2)" ' # add a feature branch, keep-merge, that is merged into master, so the @@ -163,33 +163,33 @@ test_expect_success 'pull.rebase=false create a new merge commit' ' git reset --hard before-preserve-rebase && test_config pull.rebase false && git pull . copy && - test $(git rev-parse HEAD^1) = $(git rev-parse before-preserve-rebase) && - test $(git rev-parse HEAD^2) = $(git rev-parse copy) && - test file3 = $(git show HEAD:file3.t) + test "$(git rev-parse HEAD^1)" = "$(git rev-parse before-preserve-rebase)" && + test "$(git rev-parse HEAD^2)" = "$(git rev-parse copy)" && + test file3 = "$(git show HEAD:file3.t)" ' test_expect_success 'pull.rebase=true flattens keep-merge' ' git reset --hard before-preserve-rebase && test_config pull.rebase true && git pull . copy && - test $(git rev-parse HEAD^^) = $(git rev-parse copy) && - test file3 = $(git show HEAD:file3.t) + test "$(git rev-parse HEAD^^)" = "$(git rev-parse copy)" && + test file3 = "$(git show HEAD:file3.t)" ' test_expect_success 'pull.rebase=1 is treated as true and flattens keep-merge' ' git reset --hard before-preserve-rebase && test_config pull.rebase 1 && git pull . copy && - test $(git rev-parse HEAD^^) = $(git rev-parse copy) && - test file3 = $(git show HEAD:file3.t) + test "$(git rev-parse HEAD^^)" = "$(git rev-parse copy)" && + test file3 = "$(git show HEAD:file3.t)" ' test_expect_success 'pull.rebase=preserve rebases and merges keep-merge' ' git reset --hard before-preserve-rebase && test_config pull.rebase preserve && git pull . copy && - test $(git rev-parse HEAD^^) = $(git rev-parse copy) && - test $(git rev-parse HEAD^2) = $(git rev-parse keep-merge) + test "$(git rev-parse HEAD^^)" = "$(git rev-parse copy)" && + test "$(git rev-parse HEAD^2)" = "$(git rev-parse keep-merge)" ' test_expect_success 'pull.rebase=invalid fails' ' @@ -202,25 +202,25 @@ test_expect_success '--rebase=false create a new merge commit' ' git reset --hard before-preserve-rebase && test_config pull.rebase true && git pull --rebase=false . copy && - test $(git rev-parse HEAD^1) = $(git rev-parse before-preserve-rebase) && - test $(git rev-parse HEAD^2) = $(git rev-parse copy) && - test file3 = $(git show HEAD:file3.t) + test "$(git rev-parse HEAD^1)" = "$(git rev-parse before-preserve-rebase)" && + test "$(git rev-parse HEAD^2)" = "$(git rev-parse copy)" && + test file3 = "$(git show HEAD:file3.t)" ' test_expect_success '--rebase=true rebases and flattens keep-merge' ' git reset --hard before-preserve-rebase && test_config pull.rebase preserve && git pull --rebase=true . copy && - test $(git rev-parse HEAD^^) = $(git rev-parse copy) && - test file3 = $(git show HEAD:file3.t) + test "$(git rev-parse HEAD^^)" = "$(git rev-parse copy)" && + test file3 = "$(git show HEAD:file3.t)" ' test_expect_success '--rebase=preserve rebases and merges keep-merge' ' git reset --hard before-preserve-rebase && test_config pull.rebase true && git pull --rebase=preserve . copy && - test $(git rev-parse HEAD^^) = $(git rev-parse copy) && - test $(git rev-parse HEAD^2) = $(git rev-parse keep-merge) + test "$(git rev-parse HEAD^^)" = "$(git rev-parse copy)" && + test "$(git rev-parse HEAD^2)" = "$(git rev-parse keep-merge)" ' test_expect_success '--rebase=invalid fails' ' @@ -232,8 +232,8 @@ test_expect_success '--rebase overrides pull.rebase=preserve and flattens keep-m git reset --hard before-preserve-rebase && test_config pull.rebase preserve && git pull --rebase . copy && - test $(git rev-parse HEAD^^) = $(git rev-parse copy) && - test file3 = $(git show HEAD:file3.t) + test "$(git rev-parse HEAD^^)" = "$(git rev-parse copy)" && + test file3 = "$(git show HEAD:file3.t)" ' test_expect_success '--rebase with rebased upstream' ' @@ -250,7 +250,7 @@ test_expect_success '--rebase with rebased upstream' ' git tag to-rebase-orig && git pull --rebase me copy && test "conflicting modification" = "$(cat file)" && - test file = $(cat file2) + test file = "$(cat file2)" ' @@ -261,7 +261,7 @@ test_expect_success '--rebase with rebased default upstream' ' git reset --hard to-rebase-orig && git pull --rebase && test "conflicting modification" = "$(cat file)" && - test file = $(cat file2) + test file = "$(cat file2)" ' @@ -282,7 +282,7 @@ test_expect_success 'pull --rebase dies early with dirty working directory' ' git checkout to-rebase && git update-ref refs/remotes/me/copy copy^ && - COPY=$(git rev-parse --verify me/copy) && + COPY="$(git rev-parse --verify me/copy)" && git rebase --onto $COPY copy && test_config branch.to-rebase.remote me && test_config branch.to-rebase.merge refs/heads/copy && @@ -290,10 +290,10 @@ test_expect_success 'pull --rebase dies early with dirty working directory' ' echo dirty >> file && git add file && test_must_fail git pull && - test $COPY = $(git rev-parse --verify me/copy) && + test "$COPY" = "$(git rev-parse --verify me/copy)" && git checkout HEAD -- file && git pull && - test $COPY != $(git rev-parse --verify me/copy) + test "$COPY" != "$(git rev-parse --verify me/copy)" ' From d12f455e44bc3c90bf06b7123cebe0c82a039c63 Mon Sep 17 00:00:00 2001 From: Paul Tan Date: Mon, 18 May 2015 21:32:52 +0800 Subject: [PATCH 2/8] t5520: test no merge candidates cases a8c9bef (pull: improve advice for unconfigured error case, 2009-10-05) fully established the current advices given by git-pull for the different cases where git-fetch will not have anything marked for merge: 1. We fetched from a specific remote, and a refspec was given, but it ended up not fetching anything. This is usually because the user provided a wildcard refspec which had no matches on the remote end. 2. We fetched from a non-default remote, but didn't specify a branch to merge. We can't use the configured one because it applies to the default remote, and thus the user must specify the branches to merge. 3. We fetched from the branch's or repo's default remote, but: a. We are not on a branch, so there will never be a configured branch to merge with. b. We are on a branch, but there is no configured branch to merge with. 4. We fetched from the branch's or repo's default remote, but the configured branch to merge didn't get fetched (either it doesn't exist, or wasn't part of the configured fetch refspec) Implement tests for the above 5 cases to ensure that the correct code paths are triggered for each of these cases. Signed-off-by: Paul Tan Signed-off-by: Junio C Hamano --- t/t5520-pull.sh | 55 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) diff --git a/t/t5520-pull.sh b/t/t5520-pull.sh index 5e4db67b01..4a2c0a1f26 100755 --- a/t/t5520-pull.sh +++ b/t/t5520-pull.sh @@ -109,6 +109,61 @@ test_expect_success 'the default remote . should not break explicit pull' ' test "$(cat file)" = modified ' +test_expect_success 'fail if wildcard spec does not match any refs' ' + git checkout -b test copy^ && + test_when_finished "git checkout -f copy && git branch -D test" && + test "$(cat file)" = file && + test_must_fail git pull . "refs/nonexisting1/*:refs/nonexisting2/*" 2>err && + test_i18ngrep "no candidates for merging" err && + test "$(cat file)" = file +' + +test_expect_success 'fail if no branches specified with non-default remote' ' + git remote add test_remote . && + test_when_finished "git remote remove test_remote" && + git checkout -b test copy^ && + test_when_finished "git checkout -f copy && git branch -D test" && + test "$(cat file)" = file && + test_config branch.test.remote origin && + test_must_fail git pull test_remote 2>err && + test_i18ngrep "specify a branch on the command line" err && + test "$(cat file)" = file +' + +test_expect_success 'fail if not on a branch' ' + git remote add origin . && + test_when_finished "git remote remove origin" && + git checkout HEAD^ && + test_when_finished "git checkout -f copy" && + test "$(cat file)" = file && + test_must_fail git pull 2>err && + test_i18ngrep "not currently on a branch" err && + test "$(cat file)" = file +' + +test_expect_success 'fail if no configuration for current branch' ' + git remote add test_remote . && + test_when_finished "git remote remove test_remote" && + git checkout -b test copy^ && + test_when_finished "git checkout -f copy && git branch -D test" && + test_config branch.test.remote test_remote && + test "$(cat file)" = file && + test_must_fail git pull 2>err && + test_i18ngrep "no tracking information" err && + test "$(cat file)" = file +' + +test_expect_success 'fail if upstream branch does not exist' ' + git checkout -b test copy^ && + test_when_finished "git checkout -f copy && git branch -D test" && + test_config branch.test.remote . && + test_config branch.test.merge refs/heads/nonexisting && + test "$(cat file)" = file && + test_must_fail git pull 2>err && + test_i18ngrep "no such ref was fetched" err && + test "$(cat file)" = file +' + test_expect_success '--rebase' ' git branch to-rebase && echo modified again > file && From 05438afca79176f77aff274a624675bb3b9e231e Mon Sep 17 00:00:00 2001 From: Paul Tan Date: Fri, 29 May 2015 19:44:40 +0800 Subject: [PATCH 3/8] t5520: test for failure if index has unresolved entries Commit d38a30d (Be more user-friendly when refusing to do something because of conflict., 2010-01-12) introduced code paths to git-pull which will error out with user-friendly advices if the user is in the middle of a merge or has unmerged files. Implement tests to ensure that git-pull will not run, and will print these advices, if the user is in the middle of a merge or has unmerged files in the index. Signed-off-by: Paul Tan Signed-off-by: Junio C Hamano --- t/t5520-pull.sh | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/t/t5520-pull.sh b/t/t5520-pull.sh index 4a2c0a1f26..265c693b51 100755 --- a/t/t5520-pull.sh +++ b/t/t5520-pull.sh @@ -164,6 +164,25 @@ test_expect_success 'fail if upstream branch does not exist' ' test "$(cat file)" = file ' +test_expect_success 'fail if the index has unresolved entries' ' + git checkout -b third second^ && + test_when_finished "git checkout -f copy && git branch -D third" && + test "$(cat file)" = file && + test_commit modified2 file && + test -z "$(git ls-files -u)" && + test_must_fail git pull . second && + test -n "$(git ls-files -u)" && + cp file expected && + test_must_fail git pull . second 2>err && + test_i18ngrep "Pull is not possible because you have unmerged files" err && + test_cmp expected file && + git add file && + test -z "$(git ls-files -u)" && + test_must_fail git pull . second 2>err && + test_i18ngrep "You have not concluded your merge" err && + test_cmp expected file +' + test_expect_success '--rebase' ' git branch to-rebase && echo modified again > file && From 9f992262fb8fdbac94f3a86f6bdf7182aab7feb6 Mon Sep 17 00:00:00 2001 From: Paul Tan Date: Fri, 29 May 2015 19:44:41 +0800 Subject: [PATCH 4/8] t5520: test work tree fast-forward when fetch updates head Since b10ac50 (Fix pulling into the same branch., 2005-08-25), git-pull, upon detecting that git-fetch updated the current head, will fast-forward the working tree to the updated head commit. Implement tests to ensure that the fast-forward occurs in such a case, as well as to ensure that the user-friendly advice is printed upon failure. Signed-off-by: Paul Tan Signed-off-by: Junio C Hamano --- t/t5520-pull.sh | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/t/t5520-pull.sh b/t/t5520-pull.sh index 265c693b51..872d765b5c 100755 --- a/t/t5520-pull.sh +++ b/t/t5520-pull.sh @@ -183,6 +183,27 @@ test_expect_success 'fail if the index has unresolved entries' ' test_cmp expected file ' +test_expect_success 'fast-forwards working tree if branch head is updated' ' + git checkout -b third second^ && + test_when_finished "git checkout -f copy && git branch -D third" && + test "$(cat file)" = file && + git pull . second:third 2>err && + test_i18ngrep "fetch updated the current branch head" err && + test "$(cat file)" = modified && + test "$(git rev-parse third)" = "$(git rev-parse second)" +' + +test_expect_success 'fast-forward fails with conflicting work tree' ' + git checkout -b third second^ && + test_when_finished "git checkout -f copy && git branch -D third" && + test "$(cat file)" = file && + echo conflict >file && + test_must_fail git pull . second:third 2>err && + test_i18ngrep "Cannot fast-forward your working tree" err && + test "$(cat file)" = conflict && + test "$(git rev-parse third)" = "$(git rev-parse second)" +' + test_expect_success '--rebase' ' git branch to-rebase && echo modified again > file && From 9570d67c00d6f2994e540aab3abee8f989c350ea Mon Sep 17 00:00:00 2001 From: Paul Tan Date: Fri, 29 May 2015 19:44:42 +0800 Subject: [PATCH 5/8] t5520: test --rebase with multiple branches Since rebasing on top of multiple upstream branches does not make sense, since 51b2ead (disallow providing multiple upstream branches to rebase, pull --rebase, 2009-02-18), git-pull explicitly disallowed specifying multiple branches in the rebase case. Implement tests to ensure that git-pull fails and prints out the user-friendly error message in such a case. Signed-off-by: Paul Tan Signed-off-by: Junio C Hamano --- t/t5520-pull.sh | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/t/t5520-pull.sh b/t/t5520-pull.sh index 872d765b5c..90728e0094 100755 --- a/t/t5520-pull.sh +++ b/t/t5520-pull.sh @@ -217,6 +217,15 @@ test_expect_success '--rebase' ' test "$(git rev-parse HEAD^)" = "$(git rev-parse copy)" && test new = "$(git show HEAD:file2)" ' + +test_expect_success '--rebase fails with multiple branches' ' + git reset --hard before-rebase && + test_must_fail git pull --rebase . copy master 2>err && + test "$(git rev-parse HEAD)" = "$(git rev-parse before-rebase)" && + test_i18ngrep "Cannot rebase onto multiple branches" err && + test modified = "$(git show HEAD:file)" +' + test_expect_success 'pull.rebase' ' git reset --hard before-rebase && test_config pull.rebase true && From fa14ee77ac7b0e4d16ede822015cad32f34b6c7f Mon Sep 17 00:00:00 2001 From: Paul Tan Date: Fri, 29 May 2015 19:44:43 +0800 Subject: [PATCH 6/8] t5520: test --rebase failure on unborn branch with index Commit 19a7fcb (allow pull --rebase on branch yet to be born, 2009-08-11) special cases git-pull on an unborn branch in a different code path such that git-pull --rebase is still valid even though there is no HEAD yet. This code path still ensures that there is no index in order not to lose any staged changes. Implement a test to ensure that this check is triggered. Signed-off-by: Paul Tan Signed-off-by: Junio C Hamano --- t/t5520-pull.sh | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/t/t5520-pull.sh b/t/t5520-pull.sh index 90728e0094..a04f55c40a 100755 --- a/t/t5520-pull.sh +++ b/t/t5520-pull.sh @@ -412,6 +412,21 @@ test_expect_success 'pull --rebase works on branch yet to be born' ' test_cmp expect actual ' +test_expect_success 'pull --rebase fails on unborn branch with staged changes' ' + test_when_finished "rm -rf empty_repo2" && + git init empty_repo2 && + ( + cd empty_repo2 && + echo staged-file >staged-file && + git add staged-file && + test "$(git ls-files)" = staged-file && + test_must_fail git pull --rebase .. master 2>err && + test "$(git ls-files)" = staged-file && + test "$(git show :staged-file)" = staged-file && + test_i18ngrep "unborn branch with changes added to the index" err + ) +' + test_expect_success 'setup for detecting upstreamed changes' ' mkdir src && (cd src && From 5504f13a7c1e0a0ed486aecfdcc45b150528693e Mon Sep 17 00:00:00 2001 From: Paul Tan Date: Fri, 29 May 2015 19:44:44 +0800 Subject: [PATCH 7/8] t5521: test --dry-run does not make any changes Test that when --dry-run is provided to git-pull, it does not make any changes, namely: * --dry-run gets passed to git-fetch, so no FETCH_HEAD will be created and no refs will be fetched. * The index and work tree will not be modified. Signed-off-by: Paul Tan Signed-off-by: Junio C Hamano --- t/t5521-pull-options.sh | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/t/t5521-pull-options.sh b/t/t5521-pull-options.sh index 453aba53f4..56e7377189 100755 --- a/t/t5521-pull-options.sh +++ b/t/t5521-pull-options.sh @@ -117,4 +117,17 @@ test_expect_success 'git pull --all' ' ) ' +test_expect_success 'git pull --dry-run' ' + test_when_finished "rm -rf clonedry" && + git init clonedry && + ( + cd clonedry && + git pull --dry-run ../parent && + test_path_is_missing .git/FETCH_HEAD && + test_path_is_missing .git/refs/heads/master && + test_path_is_missing .git/index && + test_path_is_missing file + ) +' + test_done From 80ea984da6c585ca4d63de0d8a2ce2873448e228 Mon Sep 17 00:00:00 2001 From: Paul Tan Date: Fri, 29 May 2015 19:44:45 +0800 Subject: [PATCH 8/8] t5520: check reflog action in fast-forward merge When testing a fast-forward merge with git-pull, check to see if the reflog action is "pull" with the arguments passed to git-pull. While we are in the vicinity, remove the empty line as well. Signed-off-by: Paul Tan Signed-off-by: Junio C Hamano --- t/t5520-pull.sh | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/t/t5520-pull.sh b/t/t5520-pull.sh index a04f55c40a..af31f04c28 100755 --- a/t/t5520-pull.sh +++ b/t/t5520-pull.sh @@ -86,7 +86,6 @@ test_expect_success 'pulling into void must not create an octopus' ' ' test_expect_success 'test . as a remote' ' - git branch copy master && git config branch.copy.remote . && git config branch.copy.merge refs/heads/master && @@ -95,7 +94,11 @@ test_expect_success 'test . as a remote' ' git checkout copy && test "$(cat file)" = file && git pull && - test "$(cat file)" = updated + test "$(cat file)" = updated && + git reflog -1 >reflog.actual && + sed "s/^[0-9a-f][0-9a-f]*/OBJID/" reflog.actual >reflog.fuzzy && + echo "OBJID HEAD@{0}: pull: Fast-forward" >reflog.expected && + test_cmp reflog.expected reflog.fuzzy ' test_expect_success 'the default remote . should not break explicit pull' ' @@ -106,7 +109,11 @@ test_expect_success 'the default remote . should not break explicit pull' ' git reset --hard HEAD^ && test "$(cat file)" = file && git pull . second && - test "$(cat file)" = modified + test "$(cat file)" = modified && + git reflog -1 >reflog.actual && + sed "s/^[0-9a-f][0-9a-f]*/OBJID/" reflog.actual >reflog.fuzzy && + echo "OBJID HEAD@{0}: pull . second: Fast-forward" >reflog.expected && + test_cmp reflog.expected reflog.fuzzy ' test_expect_success 'fail if wildcard spec does not match any refs' '