mirror of
https://github.com/go-gitea/gitea
synced 2024-12-23 17:14:27 +00:00
3d8b5ad5f3
* CutDiffAroundLine makes the incorrect assumption that `---` and `+++` always represent part of the header of a diff. This PR adds a flag to its parsing to prevent this problem and adds a streaming parsing technique to CutDiffAroundLine using an io.pipe instead of just sending data to an unbounded buffer. Fix #14711 Signed-off-by: Andrew Thornton <art27@cantab.net> * Handle unquoted comment patch files When making comment patches unfortunately the patch does not always quote the filename This makes the diff --git header ambiguous again. This PR finally adds handling for ambiguity in to parse patch Fix #14812 Signed-off-by: Andrew Thornton <art27@cantab.net> * Add in testing for no error There is no way currently for CutDiffAroundLine in this test to cause an error however, it should still be tested. Signed-off-by: Andrew Thornton <art27@cantab.net>
135 lines
3.5 KiB
Go
135 lines
3.5 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package git
|
|
|
|
import (
|
|
"strings"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
const exampleDiff = `diff --git a/README.md b/README.md
|
|
--- a/README.md
|
|
+++ b/README.md
|
|
@@ -1,3 +1,6 @@
|
|
# gitea-github-migrator
|
|
+
|
|
+ Build Status
|
|
- Latest Release
|
|
Docker Pulls
|
|
+ cut off
|
|
+ cut off`
|
|
|
|
const breakingDiff = `diff --git a/aaa.sql b/aaa.sql
|
|
index d8e4c92..19dc8ad 100644
|
|
--- a/aaa.sql
|
|
+++ b/aaa.sql
|
|
@@ -1,9 +1,10 @@
|
|
--some comment
|
|
--- some comment 5
|
|
+--some coment 2
|
|
+-- some comment 3
|
|
create or replace procedure test(p1 varchar2)
|
|
is
|
|
begin
|
|
---new comment
|
|
dbms_output.put_line(p1);
|
|
+--some other comment
|
|
end;
|
|
/
|
|
`
|
|
|
|
func TestCutDiffAroundLine(t *testing.T) {
|
|
result, err := CutDiffAroundLine(strings.NewReader(exampleDiff), 4, false, 3)
|
|
assert.NoError(t, err)
|
|
resultByLine := strings.Split(result, "\n")
|
|
assert.Len(t, resultByLine, 7)
|
|
// Check if headers got transferred
|
|
assert.Equal(t, "diff --git a/README.md b/README.md", resultByLine[0])
|
|
assert.Equal(t, "--- a/README.md", resultByLine[1])
|
|
assert.Equal(t, "+++ b/README.md", resultByLine[2])
|
|
// Check if hunk header is calculated correctly
|
|
assert.Equal(t, "@@ -2,2 +3,2 @@", resultByLine[3])
|
|
// Check if line got transferred
|
|
assert.Equal(t, "+ Build Status", resultByLine[4])
|
|
|
|
// Must be same result as before since old line 3 == new line 5
|
|
newResult, err := CutDiffAroundLine(strings.NewReader(exampleDiff), 3, true, 3)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, result, newResult, "Must be same result as before since old line 3 == new line 5")
|
|
|
|
newResult, err = CutDiffAroundLine(strings.NewReader(exampleDiff), 6, false, 300)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, exampleDiff, newResult)
|
|
|
|
emptyResult, err := CutDiffAroundLine(strings.NewReader(exampleDiff), 6, false, 0)
|
|
assert.NoError(t, err)
|
|
assert.Empty(t, emptyResult)
|
|
|
|
// Line is out of scope
|
|
emptyResult, err = CutDiffAroundLine(strings.NewReader(exampleDiff), 434, false, 0)
|
|
assert.NoError(t, err)
|
|
assert.Empty(t, emptyResult)
|
|
|
|
// Handle minus diffs properly
|
|
minusDiff, err := CutDiffAroundLine(strings.NewReader(breakingDiff), 2, false, 4)
|
|
assert.NoError(t, err)
|
|
|
|
expected := `diff --git a/aaa.sql b/aaa.sql
|
|
--- a/aaa.sql
|
|
+++ b/aaa.sql
|
|
@@ -1,9 +1,10 @@
|
|
--some comment
|
|
--- some comment 5
|
|
+--some coment 2`
|
|
assert.Equal(t, expected, minusDiff)
|
|
|
|
// Handle minus diffs properly
|
|
minusDiff, err = CutDiffAroundLine(strings.NewReader(breakingDiff), 3, false, 4)
|
|
assert.NoError(t, err)
|
|
|
|
expected = `diff --git a/aaa.sql b/aaa.sql
|
|
--- a/aaa.sql
|
|
+++ b/aaa.sql
|
|
@@ -1,9 +1,10 @@
|
|
--some comment
|
|
--- some comment 5
|
|
+--some coment 2
|
|
+-- some comment 3`
|
|
|
|
assert.Equal(t, expected, minusDiff)
|
|
}
|
|
|
|
func BenchmarkCutDiffAroundLine(b *testing.B) {
|
|
for n := 0; n < b.N; n++ {
|
|
CutDiffAroundLine(strings.NewReader(exampleDiff), 3, true, 3)
|
|
}
|
|
}
|
|
|
|
func ExampleCutDiffAroundLine() {
|
|
const diff = `diff --git a/README.md b/README.md
|
|
--- a/README.md
|
|
+++ b/README.md
|
|
@@ -1,3 +1,6 @@
|
|
# gitea-github-migrator
|
|
+
|
|
+ Build Status
|
|
- Latest Release
|
|
Docker Pulls
|
|
+ cut off
|
|
+ cut off`
|
|
result, _ := CutDiffAroundLine(strings.NewReader(diff), 4, false, 3)
|
|
println(result)
|
|
}
|
|
|
|
func TestParseDiffHunkString(t *testing.T) {
|
|
leftLine, leftHunk, rightLine, rightHunk := ParseDiffHunkString("@@ -19,3 +19,5 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER")
|
|
assert.EqualValues(t, 19, leftLine)
|
|
assert.EqualValues(t, 3, leftHunk)
|
|
assert.EqualValues(t, 19, rightLine)
|
|
assert.EqualValues(t, 5, rightHunk)
|
|
}
|