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-rw-r--r--plumbing/object/commit_test.go2
-rw-r--r--plumbing/object/patch.go95
-rw-r--r--plumbing/object/patch_test.go110
3 files changed, 152 insertions, 55 deletions
diff --git a/plumbing/object/commit_test.go b/plumbing/object/commit_test.go
index 6651ef8..a048926 100644
--- a/plumbing/object/commit_test.go
+++ b/plumbing/object/commit_test.go
@@ -455,7 +455,7 @@ func (s *SuiteCommit) TestStat(c *C) {
c.Assert(fileStats[1].Name, Equals, "php/crappy.php")
c.Assert(fileStats[1].Addition, Equals, 259)
c.Assert(fileStats[1].Deletion, Equals, 0)
- c.Assert(fileStats[1].String(), Equals, " php/crappy.php | 259 ++++++++++++++++++++++++++++++++++++++++++++++++++++\n")
+ c.Assert(fileStats[1].String(), Equals, " php/crappy.php | 259 +++++++++++++++++++++++++++++++++++++++++++++++++++++\n")
}
func (s *SuiteCommit) TestVerify(c *C) {
diff --git a/plumbing/object/patch.go b/plumbing/object/patch.go
index dd8fef4..3c61f62 100644
--- a/plumbing/object/patch.go
+++ b/plumbing/object/patch.go
@@ -6,7 +6,7 @@ import (
"errors"
"fmt"
"io"
- "math"
+ "strconv"
"strings"
"github.com/go-git/go-git/v5/plumbing"
@@ -234,69 +234,56 @@ func (fileStats FileStats) String() string {
return printStat(fileStats)
}
+// printStat prints the stats of changes in content of files.
+// Original implementation: https://github.com/git/git/blob/1a87c842ece327d03d08096395969aca5e0a6996/diff.c#L2615
+// Parts of the output:
+// <pad><filename><pad>|<pad><changeNumber><pad><+++/---><newline>
+// example: " main.go | 10 +++++++--- "
func printStat(fileStats []FileStat) string {
- padLength := float64(len(" "))
- newlineLength := float64(len("\n"))
- separatorLength := float64(len("|"))
- // Soft line length limit. The text length calculation below excludes
- // length of the change number. Adding that would take it closer to 80,
- // but probably not more than 80, until it's a huge number.
- lineLength := 72.0
-
- // Get the longest filename and longest total change.
- var longestLength float64
- var longestTotalChange float64
- for _, fs := range fileStats {
- if int(longestLength) < len(fs.Name) {
- longestLength = float64(len(fs.Name))
- }
- totalChange := fs.Addition + fs.Deletion
- if int(longestTotalChange) < totalChange {
- longestTotalChange = float64(totalChange)
- }
- }
-
- // Parts of the output:
- // <pad><filename><pad>|<pad><changeNumber><pad><+++/---><newline>
- // example: " main.go | 10 +++++++--- "
-
- // <pad><filename><pad>
- leftTextLength := padLength + longestLength + padLength
-
- // <pad><number><pad><+++++/-----><newline>
- // Excluding number length here.
- rightTextLength := padLength + padLength + newlineLength
+ maxGraphWidth := uint(53)
+ maxNameLen := 0
+ maxChangeLen := 0
- totalTextArea := leftTextLength + separatorLength + rightTextLength
- heightOfHistogram := lineLength - totalTextArea
+ scaleLinear := func(it, width, max uint) uint {
+ if it == 0 || max == 0 {
+ return 0
+ }
- // Scale the histogram.
- var scaleFactor float64
- if longestTotalChange > heightOfHistogram {
- // Scale down to heightOfHistogram.
- scaleFactor = longestTotalChange / heightOfHistogram
- } else {
- scaleFactor = 1.0
+ return 1 + (it * (width - 1) / max)
}
- finalOutput := ""
for _, fs := range fileStats {
- addn := float64(fs.Addition)
- deln := float64(fs.Deletion)
- addc := int(math.Floor(addn/scaleFactor))
- delc := int(math.Floor(deln/scaleFactor))
- if addc < 0 {
- addc = 0
+ if len(fs.Name) > maxNameLen {
+ maxNameLen = len(fs.Name)
}
- if delc < 0 {
- delc = 0
+
+ changes := strconv.Itoa(fs.Addition + fs.Deletion)
+ if len(changes) > maxChangeLen {
+ maxChangeLen = len(changes)
}
- adds := strings.Repeat("+", addc)
- dels := strings.Repeat("-", delc)
- finalOutput += fmt.Sprintf(" %s | %d %s%s\n", fs.Name, (fs.Addition + fs.Deletion), adds, dels)
}
- return finalOutput
+ result := ""
+ for _, fs := range fileStats {
+ add := uint(fs.Addition)
+ del := uint(fs.Deletion)
+ np := maxNameLen - len(fs.Name)
+ cp := maxChangeLen - len(strconv.Itoa(fs.Addition+fs.Deletion))
+
+ total := add + del
+ if total > maxGraphWidth {
+ add = scaleLinear(add, maxGraphWidth, total)
+ del = scaleLinear(del, maxGraphWidth, total)
+ }
+
+ adds := strings.Repeat("+", int(add))
+ dels := strings.Repeat("-", int(del))
+ namePad := strings.Repeat(" ", np)
+ changePad := strings.Repeat(" ", cp)
+
+ result += fmt.Sprintf(" %s%s | %s%d %s%s\n", fs.Name, namePad, changePad, total, adds, dels)
+ }
+ return result
}
func getFileStatsFromFilePatches(filePatches []fdiff.FilePatch) FileStats {
diff --git a/plumbing/object/patch_test.go b/plumbing/object/patch_test.go
index 2cff795..e0e63a5 100644
--- a/plumbing/object/patch_test.go
+++ b/plumbing/object/patch_test.go
@@ -45,3 +45,113 @@ func (s *PatchSuite) TestStatsWithSubmodules(c *C) {
c.Assert(err, IsNil)
c.Assert(p, NotNil)
}
+
+func (s *PatchSuite) TestFileStatsString(c *C) {
+ testCases := []struct {
+ description string
+ input FileStats
+ expected string
+ }{
+
+ {
+ description: "no files changed",
+ input: []FileStat{},
+ expected: "",
+ },
+ {
+ description: "one file touched - no changes",
+ input: []FileStat{
+ {
+ Name: "file1",
+ },
+ },
+ expected: " file1 | 0 \n",
+ },
+ {
+ description: "one file changed",
+ input: []FileStat{
+ {
+ Name: "file1",
+ Addition: 1,
+ },
+ },
+ expected: " file1 | 1 +\n",
+ },
+ {
+ description: "one file changed with one addition and one deletion",
+ input: []FileStat{
+ {
+ Name: ".github/workflows/git.yml",
+ Addition: 1,
+ Deletion: 1,
+ },
+ },
+ expected: " .github/workflows/git.yml | 2 +-\n",
+ },
+ {
+ description: "two files changed",
+ input: []FileStat{
+ {
+ Name: ".github/workflows/git.yml",
+ Addition: 1,
+ Deletion: 1,
+ },
+ {
+ Name: "cli/go-git/go.mod",
+ Addition: 4,
+ Deletion: 4,
+ },
+ },
+ expected: " .github/workflows/git.yml | 2 +-\n cli/go-git/go.mod | 8 ++++----\n",
+ },
+ {
+ description: "three files changed",
+ input: []FileStat{
+ {
+ Name: ".github/workflows/git.yml",
+ Addition: 3,
+ Deletion: 3,
+ },
+ {
+ Name: "worktree.go",
+ Addition: 107,
+ },
+ {
+ Name: "worktree_test.go",
+ Addition: 75,
+ },
+ },
+ expected: " .github/workflows/git.yml | 6 +++---\n" +
+ " worktree.go | 107 +++++++++++++++++++++++++++++++++++++++++++++++++++++\n" +
+ " worktree_test.go | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++++\n",
+ },
+ {
+ description: "three files changed with deletions and additions",
+ input: []FileStat{
+ {
+ Name: ".github/workflows/git.yml",
+ Addition: 3,
+ Deletion: 3,
+ },
+ {
+ Name: "worktree.go",
+ Addition: 107,
+ Deletion: 217,
+ },
+ {
+ Name: "worktree_test.go",
+ Addition: 75,
+ Deletion: 275,
+ },
+ },
+ expected: " .github/workflows/git.yml | 6 +++---\n" +
+ " worktree.go | 324 ++++++++++++++++++-----------------------------------\n" +
+ " worktree_test.go | 350 ++++++++++++-----------------------------------------\n",
+ },
+ }
+
+ for _, tc := range testCases {
+ c.Log("Executing test cases:", tc.description)
+ c.Assert(printStat(tc.input), Equals, tc.expected)
+ }
+}
generated by cgit (git 2.34.1) at 2024-11-14 11:52:46 +0000