768 lines
21 KiB
Bash
Executable File
768 lines
21 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
test_description="remember regular & dir renames in sequence of merges"
|
|
|
|
. ./test-lib.sh
|
|
|
|
#
|
|
# NOTE 1: this testfile tends to not only rename files, but modify on both
|
|
# sides; without modifying on both sides, optimizations can kick in
|
|
# which make rename detection irrelevant or trivial. We want to make
|
|
# sure that we are triggering rename caching rather than rename
|
|
# bypassing.
|
|
#
|
|
# NOTE 2: this testfile uses 'test-tool fast-rebase' instead of either
|
|
# cherry-pick or rebase. sequencer.c is only superficially
|
|
# integrated with merge-ort; it calls merge_switch_to_result()
|
|
# after EACH merge, which updates the index and working copy AND
|
|
# throws away the cached results (because merge_switch_to_result()
|
|
# is only supposed to be called at the end of the sequence).
|
|
# Integrating them more deeply is a big task, so for now the tests
|
|
# use 'test-tool fast-rebase'.
|
|
#
|
|
|
|
|
|
#
|
|
# In the following simple testcase:
|
|
# Base: numbers_1, values_1
|
|
# Upstream: numbers_2, values_2
|
|
# Topic_1: sequence_3
|
|
# Topic_2: scruples_3
|
|
# or, in english, rename numbers -> sequence in the first commit, and rename
|
|
# values -> scruples in the second commit.
|
|
#
|
|
# This shouldn't be a challenge, it's just verifying that cached renames isn't
|
|
# preventing us from finding new renames.
|
|
#
|
|
test_expect_success 'caching renames does not preclude finding new ones' '
|
|
test_create_repo caching-renames-and-new-renames &&
|
|
(
|
|
cd caching-renames-and-new-renames &&
|
|
|
|
test_seq 2 10 >numbers &&
|
|
test_seq 2 10 >values &&
|
|
git add numbers values &&
|
|
git commit -m orig &&
|
|
|
|
git branch upstream &&
|
|
git branch topic &&
|
|
|
|
git switch upstream &&
|
|
test_seq 1 10 >numbers &&
|
|
test_seq 1 10 >values &&
|
|
git add numbers values &&
|
|
git commit -m "Tweaked both files" &&
|
|
|
|
git switch topic &&
|
|
|
|
test_seq 2 12 >numbers &&
|
|
git add numbers &&
|
|
git mv numbers sequence &&
|
|
git commit -m A &&
|
|
|
|
test_seq 2 12 >values &&
|
|
git add values &&
|
|
git mv values scruples &&
|
|
git commit -m B &&
|
|
|
|
#
|
|
# Actual testing
|
|
#
|
|
|
|
git switch upstream &&
|
|
|
|
test-tool fast-rebase --onto HEAD upstream~1 topic &&
|
|
#git cherry-pick upstream~1..topic
|
|
|
|
git ls-files >tracked-files &&
|
|
test_line_count = 2 tracked-files &&
|
|
test_seq 1 12 >expect &&
|
|
test_cmp expect sequence &&
|
|
test_cmp expect scruples
|
|
)
|
|
'
|
|
|
|
#
|
|
# In the following testcase:
|
|
# Base: numbers_1
|
|
# Upstream: rename numbers_1 -> sequence_2
|
|
# Topic_1: numbers_3
|
|
# Topic_2: numbers_1
|
|
# or, in english, the first commit on the topic branch modifies numbers by
|
|
# shrinking it (dramatically) and the second commit on topic reverts its
|
|
# parent.
|
|
#
|
|
# Can git apply both patches?
|
|
#
|
|
# Traditional cherry-pick/rebase will fail to apply the second commit, the
|
|
# one that reverted its parent, because despite detecting the rename from
|
|
# 'numbers' to 'sequence' for the first commit, it fails to detect that
|
|
# rename when picking the second commit. That's "reasonable" given the
|
|
# dramatic change in size of the file, but remembering the rename and
|
|
# reusing it is reasonable too.
|
|
#
|
|
# We do test here that we expect rename detection to only be run once total
|
|
# (the topic side of history doesn't need renames, and with caching we
|
|
# should be able to only run rename detection on the upstream side one
|
|
# time.)
|
|
test_expect_success 'cherry-pick both a commit and its immediate revert' '
|
|
test_create_repo pick-commit-and-its-immediate-revert &&
|
|
(
|
|
cd pick-commit-and-its-immediate-revert &&
|
|
|
|
test_seq 11 30 >numbers &&
|
|
git add numbers &&
|
|
git commit -m orig &&
|
|
|
|
git branch upstream &&
|
|
git branch topic &&
|
|
|
|
git switch upstream &&
|
|
test_seq 1 30 >numbers &&
|
|
git add numbers &&
|
|
git mv numbers sequence &&
|
|
git commit -m "Renamed (and modified) numbers -> sequence" &&
|
|
|
|
git switch topic &&
|
|
|
|
test_seq 11 13 >numbers &&
|
|
git add numbers &&
|
|
git commit -m A &&
|
|
|
|
git revert HEAD &&
|
|
|
|
#
|
|
# Actual testing
|
|
#
|
|
|
|
git switch upstream &&
|
|
|
|
GIT_TRACE2_PERF="$(pwd)/trace.output" &&
|
|
export GIT_TRACE2_PERF &&
|
|
|
|
test-tool fast-rebase --onto HEAD upstream~1 topic &&
|
|
#git cherry-pick upstream~1..topic &&
|
|
|
|
grep region_enter.*diffcore_rename trace.output >calls &&
|
|
test_line_count = 1 calls
|
|
)
|
|
'
|
|
|
|
#
|
|
# In the following testcase:
|
|
# Base: sequence_1
|
|
# Upstream: rename sequence_1 -> values_2
|
|
# Topic_1: rename sequence_1 -> values_3
|
|
# Topic_2: add unrelated sequence_4
|
|
# or, in english, both sides rename sequence -> values, and then the second
|
|
# commit on the topic branch adds an unrelated file called sequence.
|
|
#
|
|
# This testcase presents no problems for git traditionally, but having both
|
|
# sides do the same rename in effect "uses it up" and if it remains cached,
|
|
# could cause a spurious rename/add conflict.
|
|
#
|
|
test_expect_success 'rename same file identically, then reintroduce it' '
|
|
test_create_repo rename-rename-1to1-then-add-old-filename &&
|
|
(
|
|
cd rename-rename-1to1-then-add-old-filename &&
|
|
|
|
test_seq 3 8 >sequence &&
|
|
git add sequence &&
|
|
git commit -m orig &&
|
|
|
|
git branch upstream &&
|
|
git branch topic &&
|
|
|
|
git switch upstream &&
|
|
test_seq 1 8 >sequence &&
|
|
git add sequence &&
|
|
git mv sequence values &&
|
|
git commit -m "Renamed (and modified) sequence -> values" &&
|
|
|
|
git switch topic &&
|
|
|
|
test_seq 3 10 >sequence &&
|
|
git add sequence &&
|
|
git mv sequence values &&
|
|
git commit -m A &&
|
|
|
|
test_write_lines A B C D E F G H I J >sequence &&
|
|
git add sequence &&
|
|
git commit -m B &&
|
|
|
|
#
|
|
# Actual testing
|
|
#
|
|
|
|
git switch upstream &&
|
|
|
|
GIT_TRACE2_PERF="$(pwd)/trace.output" &&
|
|
export GIT_TRACE2_PERF &&
|
|
|
|
test-tool fast-rebase --onto HEAD upstream~1 topic &&
|
|
#git cherry-pick upstream~1..topic &&
|
|
|
|
git ls-files >tracked &&
|
|
test_line_count = 2 tracked &&
|
|
test_path_is_file values &&
|
|
test_path_is_file sequence &&
|
|
|
|
grep region_enter.*diffcore_rename trace.output >calls &&
|
|
test_line_count = 2 calls
|
|
)
|
|
'
|
|
|
|
#
|
|
# In the following testcase:
|
|
# Base: olddir/{valuesZ_1, valuesY_1, valuesX_1}
|
|
# Upstream: rename olddir/valuesZ_1 -> dirA/valuesZ_2
|
|
# rename olddir/valuesY_1 -> dirA/valuesY_2
|
|
# rename olddir/valuesX_1 -> dirB/valuesX_2
|
|
# Topic_1: rename olddir/valuesZ_1 -> dirA/valuesZ_3
|
|
# rename olddir/valuesY_1 -> dirA/valuesY_3
|
|
# Topic_2: add olddir/newfile
|
|
# Expected Pick1: dirA/{valuesZ, valuesY}, dirB/valuesX
|
|
# Expected Pick2: dirA/{valuesZ, valuesY}, dirB/{valuesX, newfile}
|
|
#
|
|
# This testcase presents no problems for git traditionally, but having both
|
|
# sides do the same renames in effect "use it up" but if the renames remain
|
|
# cached, the directory rename could put newfile in the wrong directory.
|
|
#
|
|
test_expect_success 'rename same file identically, then add file to old dir' '
|
|
test_create_repo rename-rename-1to1-then-add-file-to-old-dir &&
|
|
(
|
|
cd rename-rename-1to1-then-add-file-to-old-dir &&
|
|
|
|
mkdir olddir/ &&
|
|
test_seq 3 8 >olddir/valuesZ &&
|
|
test_seq 3 8 >olddir/valuesY &&
|
|
test_seq 3 8 >olddir/valuesX &&
|
|
git add olddir &&
|
|
git commit -m orig &&
|
|
|
|
git branch upstream &&
|
|
git branch topic &&
|
|
|
|
git switch upstream &&
|
|
test_seq 1 8 >olddir/valuesZ &&
|
|
test_seq 1 8 >olddir/valuesY &&
|
|
test_seq 1 8 >olddir/valuesX &&
|
|
git add olddir &&
|
|
mkdir dirA &&
|
|
git mv olddir/valuesZ olddir/valuesY dirA &&
|
|
git mv olddir/ dirB/ &&
|
|
git commit -m "Renamed (and modified) values*" &&
|
|
|
|
git switch topic &&
|
|
|
|
test_seq 3 10 >olddir/valuesZ &&
|
|
test_seq 3 10 >olddir/valuesY &&
|
|
git add olddir &&
|
|
mkdir dirA &&
|
|
git mv olddir/valuesZ olddir/valuesY dirA &&
|
|
git commit -m A &&
|
|
|
|
>olddir/newfile &&
|
|
git add olddir/newfile &&
|
|
git commit -m B &&
|
|
|
|
#
|
|
# Actual testing
|
|
#
|
|
|
|
git switch upstream &&
|
|
git config merge.directoryRenames true &&
|
|
|
|
GIT_TRACE2_PERF="$(pwd)/trace.output" &&
|
|
export GIT_TRACE2_PERF &&
|
|
|
|
test-tool fast-rebase --onto HEAD upstream~1 topic &&
|
|
#git cherry-pick upstream~1..topic &&
|
|
|
|
git ls-files >tracked &&
|
|
test_line_count = 4 tracked &&
|
|
test_path_is_file dirA/valuesZ &&
|
|
test_path_is_file dirA/valuesY &&
|
|
test_path_is_file dirB/valuesX &&
|
|
test_path_is_file dirB/newfile &&
|
|
|
|
grep region_enter.*diffcore_rename trace.output >calls &&
|
|
test_line_count = 3 calls
|
|
)
|
|
'
|
|
|
|
#
|
|
# In the following testcase, upstream renames a directory, and the topic branch
|
|
# first adds a file to the directory, then later renames the directory
|
|
# differently:
|
|
# Base: olddir/a
|
|
# olddir/b
|
|
# Upstream: rename olddir/ -> newdir/
|
|
# Topic_1: add olddir/newfile
|
|
# Topic_2: rename olddir/ -> otherdir/
|
|
#
|
|
# Here we are just concerned that cached renames might prevent us from seeing
|
|
# the rename conflict, and we want to ensure that we do get a conflict.
|
|
#
|
|
# While at it, though, we do test that we only try to detect renames 2
|
|
# times and not three. (The first merge needs to detect renames on the
|
|
# upstream side. Traditionally, the second merge would need to detect
|
|
# renames on both sides of history, but our caching of upstream renames
|
|
# should avoid the need to re-detect upstream renames.)
|
|
#
|
|
test_expect_success 'cached dir rename does not prevent noticing later conflict' '
|
|
test_create_repo dir-rename-cache-not-occluding-later-conflict &&
|
|
(
|
|
cd dir-rename-cache-not-occluding-later-conflict &&
|
|
|
|
mkdir olddir &&
|
|
test_seq 3 10 >olddir/a &&
|
|
test_seq 3 10 >olddir/b &&
|
|
git add olddir &&
|
|
git commit -m orig &&
|
|
|
|
git branch upstream &&
|
|
git branch topic &&
|
|
|
|
git switch upstream &&
|
|
test_seq 3 10 >olddir/a &&
|
|
test_seq 3 10 >olddir/b &&
|
|
git add olddir &&
|
|
git mv olddir newdir &&
|
|
git commit -m "Dir renamed" &&
|
|
|
|
git switch topic &&
|
|
|
|
>olddir/newfile &&
|
|
git add olddir/newfile &&
|
|
git commit -m A &&
|
|
|
|
test_seq 1 8 >olddir/a &&
|
|
test_seq 1 8 >olddir/b &&
|
|
git add olddir &&
|
|
git mv olddir otherdir &&
|
|
git commit -m B &&
|
|
|
|
#
|
|
# Actual testing
|
|
#
|
|
|
|
git switch upstream &&
|
|
git config merge.directoryRenames true &&
|
|
|
|
GIT_TRACE2_PERF="$(pwd)/trace.output" &&
|
|
export GIT_TRACE2_PERF &&
|
|
|
|
test_must_fail test-tool fast-rebase --onto HEAD upstream~1 topic >output &&
|
|
#git cherry-pick upstream..topic &&
|
|
|
|
grep CONFLICT..rename/rename output &&
|
|
|
|
grep region_enter.*diffcore_rename trace.output >calls &&
|
|
test_line_count = 2 calls
|
|
)
|
|
'
|
|
|
|
# Helper for the next two tests
|
|
test_setup_upstream_rename () {
|
|
test_create_repo $1 &&
|
|
(
|
|
cd $1 &&
|
|
|
|
test_seq 3 8 >somefile &&
|
|
test_seq 3 8 >relevant-rename &&
|
|
git add somefile relevant-rename &&
|
|
mkdir olddir &&
|
|
test_write_lines a b c d e f g >olddir/a &&
|
|
test_write_lines z y x w v u t >olddir/b &&
|
|
git add olddir &&
|
|
git commit -m orig &&
|
|
|
|
git branch upstream &&
|
|
git branch topic &&
|
|
|
|
git switch upstream &&
|
|
test_seq 1 8 >somefile &&
|
|
test_seq 1 8 >relevant-rename &&
|
|
git add somefile relevant-rename &&
|
|
git mv relevant-rename renamed &&
|
|
echo h >>olddir/a &&
|
|
echo s >>olddir/b &&
|
|
git add olddir &&
|
|
git mv olddir newdir &&
|
|
git commit -m "Dir renamed"
|
|
)
|
|
}
|
|
|
|
#
|
|
# In the following testcase, upstream renames a file in the toplevel directory
|
|
# as well as its only directory:
|
|
# Base: relevant-rename_1
|
|
# somefile
|
|
# olddir/a
|
|
# olddir/b
|
|
# Upstream: rename relevant-rename_1 -> renamed_2
|
|
# rename olddir/ -> newdir/
|
|
# Topic_1: relevant-rename_3
|
|
# Topic_2: olddir/newfile_1
|
|
# Topic_3: olddir/newfile_2
|
|
#
|
|
# In this testcase, since the first commit being picked only modifies a
|
|
# file in the toplevel directory, the directory rename is irrelevant for
|
|
# that first merge. However, we need to notice the directory rename for
|
|
# the merge that picks the second commit, and we don't want the third
|
|
# commit to mess up its location either. We want to make sure that
|
|
# olddir/newfile doesn't exist in the result and that newdir/newfile does.
|
|
#
|
|
# We also test that we only do rename detection twice. We never need
|
|
# rename detection on the topic side of history, but we do need it twice on
|
|
# the upstream side of history. For the first topic commit, we only need
|
|
# the
|
|
# relevant-rename -> renamed
|
|
# rename, because olddir is unmodified by Topic_1. For Topic_2, however,
|
|
# the new file being added to olddir means files that were previously
|
|
# irrelevant for rename detection are now relevant, forcing us to repeat
|
|
# rename detection for the paths we don't already have cached. Topic_3 also
|
|
# tweaks olddir/newfile, but the renames in olddir/ will have been cached
|
|
# from the second rename detection run.
|
|
#
|
|
test_expect_success 'dir rename unneeded, then add new file to old dir' '
|
|
test_setup_upstream_rename dir-rename-unneeded-until-new-file &&
|
|
(
|
|
cd dir-rename-unneeded-until-new-file &&
|
|
|
|
git switch topic &&
|
|
|
|
test_seq 3 10 >relevant-rename &&
|
|
git add relevant-rename &&
|
|
git commit -m A &&
|
|
|
|
echo foo >olddir/newfile &&
|
|
git add olddir/newfile &&
|
|
git commit -m B &&
|
|
|
|
echo bar >>olddir/newfile &&
|
|
git add olddir/newfile &&
|
|
git commit -m C &&
|
|
|
|
#
|
|
# Actual testing
|
|
#
|
|
|
|
git switch upstream &&
|
|
git config merge.directoryRenames true &&
|
|
|
|
GIT_TRACE2_PERF="$(pwd)/trace.output" &&
|
|
export GIT_TRACE2_PERF &&
|
|
|
|
test-tool fast-rebase --onto HEAD upstream~1 topic &&
|
|
#git cherry-pick upstream..topic &&
|
|
|
|
grep region_enter.*diffcore_rename trace.output >calls &&
|
|
test_line_count = 2 calls &&
|
|
|
|
git ls-files >tracked &&
|
|
test_line_count = 5 tracked &&
|
|
test_path_is_missing olddir/newfile &&
|
|
test_path_is_file newdir/newfile
|
|
)
|
|
'
|
|
|
|
#
|
|
# The following testcase is *very* similar to the last one, but instead of
|
|
# adding a new olddir/newfile, it renames somefile -> olddir/newfile:
|
|
# Base: relevant-rename_1
|
|
# somefile_1
|
|
# olddir/a
|
|
# olddir/b
|
|
# Upstream: rename relevant-rename_1 -> renamed_2
|
|
# rename olddir/ -> newdir/
|
|
# Topic_1: relevant-rename_3
|
|
# Topic_2: rename somefile -> olddir/newfile_2
|
|
# Topic_3: modify olddir/newfile_3
|
|
#
|
|
# In this testcase, since the first commit being picked only modifies a
|
|
# file in the toplevel directory, the directory rename is irrelevant for
|
|
# that first merge. However, we need to notice the directory rename for
|
|
# the merge that picks the second commit, and we don't want the third
|
|
# commit to mess up its location either. We want to make sure that
|
|
# neither somefile or olddir/newfile exists in the result and that
|
|
# newdir/newfile does.
|
|
#
|
|
# This testcase needs one more call to rename detection than the last
|
|
# testcase, because of the somefile -> olddir/newfile rename in Topic_2.
|
|
test_expect_success 'dir rename unneeded, then rename existing file into old dir' '
|
|
test_setup_upstream_rename dir-rename-unneeded-until-file-moved-inside &&
|
|
(
|
|
cd dir-rename-unneeded-until-file-moved-inside &&
|
|
|
|
git switch topic &&
|
|
|
|
test_seq 3 10 >relevant-rename &&
|
|
git add relevant-rename &&
|
|
git commit -m A &&
|
|
|
|
test_seq 1 10 >somefile &&
|
|
git add somefile &&
|
|
git mv somefile olddir/newfile &&
|
|
git commit -m B &&
|
|
|
|
test_seq 1 12 >olddir/newfile &&
|
|
git add olddir/newfile &&
|
|
git commit -m C &&
|
|
|
|
#
|
|
# Actual testing
|
|
#
|
|
|
|
git switch upstream &&
|
|
git config merge.directoryRenames true &&
|
|
|
|
GIT_TRACE2_PERF="$(pwd)/trace.output" &&
|
|
export GIT_TRACE2_PERF &&
|
|
|
|
test-tool fast-rebase --onto HEAD upstream~1 topic &&
|
|
#git cherry-pick upstream..topic &&
|
|
|
|
grep region_enter.*diffcore_rename trace.output >calls &&
|
|
test_line_count = 3 calls &&
|
|
|
|
test_path_is_missing somefile &&
|
|
test_path_is_missing olddir/newfile &&
|
|
test_path_is_file newdir/newfile &&
|
|
git ls-files >tracked &&
|
|
test_line_count = 4 tracked
|
|
)
|
|
'
|
|
|
|
# Helper for the next two tests
|
|
test_setup_topic_rename () {
|
|
test_create_repo $1 &&
|
|
(
|
|
cd $1 &&
|
|
|
|
test_seq 3 8 >somefile &&
|
|
mkdir olddir &&
|
|
test_seq 3 8 >olddir/a &&
|
|
echo b >olddir/b &&
|
|
git add olddir somefile &&
|
|
git commit -m orig &&
|
|
|
|
git branch upstream &&
|
|
git branch topic &&
|
|
|
|
git switch topic &&
|
|
test_seq 1 8 >somefile &&
|
|
test_seq 1 8 >olddir/a &&
|
|
git add somefile olddir/a &&
|
|
git mv olddir newdir &&
|
|
git commit -m "Dir renamed" &&
|
|
|
|
test_seq 1 10 >somefile &&
|
|
git add somefile &&
|
|
mkdir olddir &&
|
|
>olddir/unrelated-file &&
|
|
git add olddir &&
|
|
git commit -m "Unrelated file in recreated old dir"
|
|
)
|
|
}
|
|
|
|
#
|
|
# In the following testcase, the first commit on the topic branch renames
|
|
# a directory, while the second recreates the old directory and places a
|
|
# file into it:
|
|
# Base: somefile
|
|
# olddir/a
|
|
# olddir/b
|
|
# Upstream: olddir/newfile
|
|
# Topic_1: somefile_2
|
|
# rename olddir/ -> newdir/
|
|
# Topic_2: olddir/unrelated-file
|
|
#
|
|
# Note that the first pick should merge:
|
|
# Base: somefile
|
|
# olddir/{a,b}
|
|
# Upstream: olddir/newfile
|
|
# Topic_1: rename olddir/ -> newdir/
|
|
# For which the expected result (assuming merge.directoryRenames=true) is
|
|
# clearly:
|
|
# Result: somefile
|
|
# newdir/{a, b, newfile}
|
|
#
|
|
# While the second pick does the following three-way merge:
|
|
# Base (Topic_1): somefile
|
|
# newdir/{a,b}
|
|
# Upstream (Result from 1): same files as base, but adds newdir/newfile
|
|
# Topic_2: same files as base, but adds olddir/unrelated-file
|
|
#
|
|
# The second merge is pretty trivial; upstream adds newdir/newfile, and
|
|
# topic_2 adds olddir/unrelated-file. We're just testing that we don't
|
|
# accidentally cache directory renames somehow and rename
|
|
# olddir/unrelated-file to newdir/unrelated-file.
|
|
#
|
|
# This testcase should only need one call to diffcore_rename_extended().
|
|
test_expect_success 'caching renames only on upstream side, part 1' '
|
|
test_setup_topic_rename cache-renames-only-upstream-add-file &&
|
|
(
|
|
cd cache-renames-only-upstream-add-file &&
|
|
|
|
git switch upstream &&
|
|
|
|
>olddir/newfile &&
|
|
git add olddir/newfile &&
|
|
git commit -m "Add newfile" &&
|
|
|
|
#
|
|
# Actual testing
|
|
#
|
|
|
|
git switch upstream &&
|
|
|
|
git config merge.directoryRenames true &&
|
|
|
|
GIT_TRACE2_PERF="$(pwd)/trace.output" &&
|
|
export GIT_TRACE2_PERF &&
|
|
|
|
test-tool fast-rebase --onto HEAD upstream~1 topic &&
|
|
#git cherry-pick upstream..topic &&
|
|
|
|
grep region_enter.*diffcore_rename trace.output >calls &&
|
|
test_line_count = 1 calls &&
|
|
|
|
git ls-files >tracked &&
|
|
test_line_count = 5 tracked &&
|
|
test_path_is_missing newdir/unrelated-file &&
|
|
test_path_is_file olddir/unrelated-file &&
|
|
test_path_is_file newdir/newfile &&
|
|
test_path_is_file newdir/b &&
|
|
test_path_is_file newdir/a &&
|
|
test_path_is_file somefile
|
|
)
|
|
'
|
|
|
|
#
|
|
# The following testcase is *very* similar to the last one, but instead of
|
|
# adding a new olddir/newfile, it renames somefile -> olddir/newfile:
|
|
# Base: somefile
|
|
# olddir/a
|
|
# olddir/b
|
|
# Upstream: somefile_1 -> olddir/newfile
|
|
# Topic_1: rename olddir/ -> newdir/
|
|
# somefile_2
|
|
# Topic_2: olddir/unrelated-file
|
|
# somefile_3
|
|
#
|
|
# Much like the previous test, this case is actually trivial and we are just
|
|
# making sure there isn't some spurious directory rename caching going on
|
|
# for the wrong side of history.
|
|
#
|
|
#
|
|
# This testcase should only need two calls to diffcore_rename_extended(),
|
|
# both for the first merge, one for each side of history.
|
|
#
|
|
test_expect_success 'caching renames only on upstream side, part 2' '
|
|
test_setup_topic_rename cache-renames-only-upstream-rename-file &&
|
|
(
|
|
cd cache-renames-only-upstream-rename-file &&
|
|
|
|
git switch upstream &&
|
|
|
|
git mv somefile olddir/newfile &&
|
|
git commit -m "Add newfile" &&
|
|
|
|
#
|
|
# Actual testing
|
|
#
|
|
|
|
git switch upstream &&
|
|
|
|
git config merge.directoryRenames true &&
|
|
|
|
GIT_TRACE2_PERF="$(pwd)/trace.output" &&
|
|
export GIT_TRACE2_PERF &&
|
|
|
|
test-tool fast-rebase --onto HEAD upstream~1 topic &&
|
|
#git cherry-pick upstream..topic &&
|
|
|
|
grep region_enter.*diffcore_rename trace.output >calls &&
|
|
test_line_count = 2 calls &&
|
|
|
|
git ls-files >tracked &&
|
|
test_line_count = 4 tracked &&
|
|
test_path_is_missing newdir/unrelated-file &&
|
|
test_path_is_file olddir/unrelated-file &&
|
|
test_path_is_file newdir/newfile &&
|
|
test_path_is_file newdir/b &&
|
|
test_path_is_file newdir/a
|
|
)
|
|
'
|
|
|
|
#
|
|
# The following testcase just creates two simple renames (slightly modified
|
|
# on both sides but without conflicting changes), and a directory full of
|
|
# files that are otherwise uninteresting. The setup is as follows:
|
|
#
|
|
# base: unrelated/<BUNCH OF FILES>
|
|
# numbers
|
|
# values
|
|
# upstream: modify: numbers
|
|
# modify: values
|
|
# topic: add: unrelated/foo
|
|
# modify: numbers
|
|
# modify: values
|
|
# rename: numbers -> sequence
|
|
# rename: values -> progression
|
|
#
|
|
# This is a trivial rename case, but we're curious what happens with a very
|
|
# low renameLimit interacting with the restart optimization trying to notice
|
|
# that unrelated/ looks like a trivial merge candidate.
|
|
#
|
|
test_expect_success 'avoid assuming we detected renames' '
|
|
git init redo-weirdness &&
|
|
(
|
|
cd redo-weirdness &&
|
|
|
|
mkdir unrelated &&
|
|
for i in $(test_seq 1 10)
|
|
do
|
|
>unrelated/$i
|
|
done &&
|
|
test_seq 2 10 >numbers &&
|
|
test_seq 12 20 >values &&
|
|
git add numbers values unrelated/ &&
|
|
git commit -m orig &&
|
|
|
|
git branch upstream &&
|
|
git branch topic &&
|
|
|
|
git switch upstream &&
|
|
test_seq 1 10 >numbers &&
|
|
test_seq 11 20 >values &&
|
|
git add numbers &&
|
|
git commit -m "Some tweaks" &&
|
|
|
|
git switch topic &&
|
|
|
|
>unrelated/foo &&
|
|
test_seq 2 12 >numbers &&
|
|
test_seq 12 22 >values &&
|
|
git add numbers values unrelated/ &&
|
|
git mv numbers sequence &&
|
|
git mv values progression &&
|
|
git commit -m A &&
|
|
|
|
#
|
|
# Actual testing
|
|
#
|
|
|
|
git switch --detach topic^0 &&
|
|
|
|
test_must_fail git -c merge.renameLimit=1 rebase upstream &&
|
|
|
|
git ls-files -u >actual &&
|
|
! test_file_is_empty actual
|
|
)
|
|
'
|
|
|
|
test_done
|