diff options
Diffstat (limited to 'vendor/github.com/pmezard/go-difflib/difflib/difflib.go')
| -rw-r--r-- | vendor/github.com/pmezard/go-difflib/difflib/difflib.go | 54 |
1 files changed, 34 insertions, 20 deletions
diff --git a/vendor/github.com/pmezard/go-difflib/difflib/difflib.go b/vendor/github.com/pmezard/go-difflib/difflib/difflib.go index 64cc40f..003e99f 100644 --- a/vendor/github.com/pmezard/go-difflib/difflib/difflib.go +++ b/vendor/github.com/pmezard/go-difflib/difflib/difflib.go @@ -559,10 +559,14 @@ type UnifiedDiff struct { func WriteUnifiedDiff(writer io.Writer, diff UnifiedDiff) error { buf := bufio.NewWriter(writer) defer buf.Flush() - w := func(format string, args ...interface{}) error { + wf := func(format string, args ...interface{}) error { _, err := buf.WriteString(fmt.Sprintf(format, args...)) return err } + ws := func(s string) error { + _, err := buf.WriteString(s) + return err + } if len(diff.Eol) == 0 { diff.Eol = "\n" @@ -581,26 +585,28 @@ func WriteUnifiedDiff(writer io.Writer, diff UnifiedDiff) error { if len(diff.ToDate) > 0 { toDate = "\t" + diff.ToDate } - err := w("--- %s%s%s", diff.FromFile, fromDate, diff.Eol) - if err != nil { - return err - } - err = w("+++ %s%s%s", diff.ToFile, toDate, diff.Eol) - if err != nil { - return err + if diff.FromFile != "" || diff.ToFile != "" { + err := wf("--- %s%s%s", diff.FromFile, fromDate, diff.Eol) + if err != nil { + return err + } + err = wf("+++ %s%s%s", diff.ToFile, toDate, diff.Eol) + if err != nil { + return err + } } } first, last := g[0], g[len(g)-1] range1 := formatRangeUnified(first.I1, last.I2) range2 := formatRangeUnified(first.J1, last.J2) - if err := w("@@ -%s +%s @@%s", range1, range2, diff.Eol); err != nil { + if err := wf("@@ -%s +%s @@%s", range1, range2, diff.Eol); err != nil { return err } for _, c := range g { i1, i2, j1, j2 := c.I1, c.I2, c.J1, c.J2 if c.Tag == 'e' { for _, line := range diff.A[i1:i2] { - if err := w(" " + line); err != nil { + if err := ws(" " + line); err != nil { return err } } @@ -608,14 +614,14 @@ func WriteUnifiedDiff(writer io.Writer, diff UnifiedDiff) error { } if c.Tag == 'r' || c.Tag == 'd' { for _, line := range diff.A[i1:i2] { - if err := w("-" + line); err != nil { + if err := ws("-" + line); err != nil { return err } } } if c.Tag == 'r' || c.Tag == 'i' { for _, line := range diff.B[j1:j2] { - if err := w("+" + line); err != nil { + if err := ws("+" + line); err != nil { return err } } @@ -669,12 +675,18 @@ func WriteContextDiff(writer io.Writer, diff ContextDiff) error { buf := bufio.NewWriter(writer) defer buf.Flush() var diffErr error - w := func(format string, args ...interface{}) { + wf := func(format string, args ...interface{}) { _, err := buf.WriteString(fmt.Sprintf(format, args...)) if diffErr == nil && err != nil { diffErr = err } } + ws := func(s string) { + _, err := buf.WriteString(s) + if diffErr == nil && err != nil { + diffErr = err + } + } if len(diff.Eol) == 0 { diff.Eol = "\n" @@ -700,15 +712,17 @@ func WriteContextDiff(writer io.Writer, diff ContextDiff) error { if len(diff.ToDate) > 0 { toDate = "\t" + diff.ToDate } - w("*** %s%s%s", diff.FromFile, fromDate, diff.Eol) - w("--- %s%s%s", diff.ToFile, toDate, diff.Eol) + if diff.FromFile != "" || diff.ToFile != "" { + wf("*** %s%s%s", diff.FromFile, fromDate, diff.Eol) + wf("--- %s%s%s", diff.ToFile, toDate, diff.Eol) + } } first, last := g[0], g[len(g)-1] - w("***************" + diff.Eol) + ws("***************" + diff.Eol) range1 := formatRangeContext(first.I1, last.I2) - w("*** %s ****%s", range1, diff.Eol) + wf("*** %s ****%s", range1, diff.Eol) for _, c := range g { if c.Tag == 'r' || c.Tag == 'd' { for _, cc := range g { @@ -716,7 +730,7 @@ func WriteContextDiff(writer io.Writer, diff ContextDiff) error { continue } for _, line := range diff.A[cc.I1:cc.I2] { - w(prefix[cc.Tag] + line) + ws(prefix[cc.Tag] + line) } } break @@ -724,7 +738,7 @@ func WriteContextDiff(writer io.Writer, diff ContextDiff) error { } range2 := formatRangeContext(first.J1, last.J2) - w("--- %s ----%s", range2, diff.Eol) + wf("--- %s ----%s", range2, diff.Eol) for _, c := range g { if c.Tag == 'r' || c.Tag == 'i' { for _, cc := range g { @@ -732,7 +746,7 @@ func WriteContextDiff(writer io.Writer, diff ContextDiff) error { continue } for _, line := range diff.B[cc.J1:cc.J2] { - w(prefix[cc.Tag] + line) + ws(prefix[cc.Tag] + line) } } break |