Impl

.benchspotter/.gitignore

@@ -0,0 +1 @@
+/recall/

.benchspotter/sessions/01a1208c-0b84-756b-ae17-41dad78c5d66/meta.json

@@ -0,0 +1,25 @@
+{
+	"name": "baseline",
+	"benchs": [
+		"BenchmarkConfig",
+		"BenchmarkEnv/Load",
+		"BenchmarkEnv/LoadProtected",
+		"BenchmarkEnv/UpdateFile",
+		"BenchmarkEnv/UpdateFileUnchanged",
+		"BenchmarkParse",
+		"BenchmarkFile"
+	],
+	"git_commit": "74c4f677f7d380f117dd4e27dccad1b7bc042184",
+	"machine": {
+		"goos": "linux",
+		"goarch": "amd64",
+		"num_cpu": 12,
+		"physical_cores": 6,
+		"threads_per_core": 2,
+		"cpu": "AMD Ryzen 5 3600 6-Core Processor",
+		"cache_l1d": 32768,
+		"cache_l2": 524288,
+		"cache_l3": 16777216
+	},
+	"go_version": "go1.27.1"
+}

.benchspotter/sessions/01a12097-6c1b-7531-9b08-41118f50760f/meta.json

@@ -0,0 +1,19 @@
+{
+	"name": "probes",
+	"benchs": [
+		"BenchmarkProbe"
+	],
+	"git_commit": "74c4f677f7d380f117dd4e27dccad1b7bc042184",
+	"machine": {
+		"goos": "linux",
+		"goarch": "amd64",
+		"num_cpu": 12,
+		"physical_cores": 6,
+		"threads_per_core": 2,
+		"cpu": "AMD Ryzen 5 3600 6-Core Processor",
+		"cache_l1d": 32768,
+		"cache_l2": 524288,
+		"cache_l3": 16777216
+	},
+	"go_version": "go1.27.1"
+}

.benchspotter/sessions/01a12097-6c1b-7531-9b08-41118f50760f/results.bench

@@ -0,0 +1,59 @@
+goos: linux
+goarch: amd64
+pkg: github.com/git-bug/gitconfig
+cpu: AMD Ryzen 5 3600 6-Core Processor              
+
+BenchmarkProbe/UnsetAllSections/n=256-12 1214 986139 ns/op 222858 B/op 52 allocs/op
+BenchmarkProbe/UnsetAllSections/n=256-12 1204 990883 ns/op 222849 B/op 52 allocs/op
+BenchmarkProbe/UnsetAllSections/n=256-12 1213 1.010632e+06 ns/op 222849 B/op 52 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=256-12 2242 526884 ns/op 168832 B/op 52 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=256-12 2242 518990 ns/op 168832 B/op 52 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=256-12 2272 523023 ns/op 168832 B/op 52 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=256-12 19441 61817 ns/op 160481 B/op 57 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=256-12 19671 60646 ns/op 160480 B/op 57 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=256-12 19303 61461 ns/op 160480 B/op 57 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=256-12 17032 71112 ns/op 168393 B/op 303 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=256-12 16491 72511 ns/op 168393 B/op 303 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=256-12 16771 71676 ns/op 168393 B/op 303 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=256-12 15346 78806 ns/op 213305 B/op 48 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=256-12 15358 78362 ns/op 213304 B/op 48 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=256-12 15223 78671 ns/op 213304 B/op 48 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=256-12 738 1.632159e+06 ns/op 684595 B/op 5954 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=256-12 724 1.64687e+06 ns/op 684595 B/op 5954 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=256-12 730 1.642532e+06 ns/op 684594 B/op 5954 allocs/op
+BenchmarkProbe/UnsetAllSections/n=1024-12 76 1.573481e+07 ns/op 1.014829e+06 B/op 66 allocs/op
+BenchmarkProbe/UnsetAllSections/n=1024-12 75 1.5914246e+07 ns/op 1.01483e+06 B/op 66 allocs/op
+BenchmarkProbe/UnsetAllSections/n=1024-12 76 1.5651015e+07 ns/op 1.01483e+06 B/op 66 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=1024-12 140 8.511731e+06 ns/op 982063 B/op 67 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=1024-12 141 8.474946e+06 ns/op 982062 B/op 67 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=1024-12 138 8.596572e+06 ns/op 982061 B/op 67 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=1024-12 4036 288188 ns/op 946276 B/op 70 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=1024-12 4200 287403 ns/op 946275 B/op 70 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=1024-12 4214 290750 ns/op 946276 B/op 70 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=1024-12 2360 505646 ns/op 1.982294e+06 B/op 1079 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=1024-12 2403 486532 ns/op 1.982296e+06 B/op 1079 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=1024-12 2577 492874 ns/op 1.982295e+06 B/op 1079 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=1024-12 3654 340132 ns/op 977854 B/op 60 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=1024-12 3583 348576 ns/op 977853 B/op 60 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=1024-12 3486 345554 ns/op 977854 B/op 60 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=1024-12 180 6.586774e+06 ns/op 2.81671e+06 B/op 23631 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=1024-12 183 6.480406e+06 ns/op 2.816709e+06 B/op 23631 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=1024-12 183 6.524314e+06 ns/op 2.816715e+06 B/op 23631 allocs/op
+BenchmarkProbe/UnsetAllSections/n=4096-12 4 2.86652704e+08 ns/op 4.161488e+06 B/op 92 allocs/op
+BenchmarkProbe/UnsetAllSections/n=4096-12 4 2.96065105e+08 ns/op 4.161488e+06 B/op 92 allocs/op
+BenchmarkProbe/UnsetAllSections/n=4096-12 4 2.90395055e+08 ns/op 4.161544e+06 B/op 93 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=4096-12 8 1.39637449e+08 ns/op 3.92391e+06 B/op 93 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=4096-12 8 1.3865881e+08 ns/op 3.923896e+06 B/op 93 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=4096-12 8 1.38232921e+08 ns/op 3.923938e+06 B/op 93 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=4096-12 694 1.74319e+06 ns/op 3.777282e+06 B/op 84 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=4096-12 596 1.923503e+06 ns/op 3.777278e+06 B/op 84 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=4096-12 637 1.852339e+06 ns/op 3.777276e+06 B/op 84 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=4096-12 230 5.192618e+06 ns/op 2.8214256e+07 B/op 4164 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=4096-12 230 5.140154e+06 ns/op 2.8214258e+07 B/op 4164 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=4096-12 230 5.269271e+06 ns/op 2.8214286e+07 B/op 4164 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=4096-12 525 2.310713e+06 ns/op 4.01364e+06 B/op 74 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=4096-12 546 2.299224e+06 ns/op 4.013644e+06 B/op 74 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=4096-12 538 2.278819e+06 ns/op 4.013644e+06 B/op 74 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=4096-12 42 2.7449247e+07 ns/op 1.1423055e+07 B/op 94301 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=4096-12 42 2.7776282e+07 ns/op 1.1423061e+07 B/op 94301 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=4096-12 43 2.7625295e+07 ns/op 1.1423066e+07 B/op 94301 allocs/op

.benchspotter/sessions/01a120a2-f2e8-7ce8-a8ac-b6a8bebf1cbb/git.diff

@@ -0,0 +1,144 @@
+diff --git a/edit.go b/edit.go
+index 75c1521..3862ece 100644
+--- a/edit.go
++++ b/edit.go
+@@ -311,10 +311,6 @@ func (f *File) entryLineEnd(i int) int {
+ // after the previous header or a BOM (the rest of its line becomes a
+ // newline), and ends at the next header, its indentation included.
+ func (f *File) unsetEntries(idx []int) []splice {
+-	removed := make(map[int]bool, len(idx))
+-	for _, i := range idx {
+-		removed[i] = true
+-	}
+ 	// Comments at the end of a removed entry's line play no part.
+ 	trailing := make(map[int]bool)
+ 	for _, i := range idx {
+@@ -324,10 +320,21 @@ func (f *File) unsetEntries(idx []int) []splice {
+ 			}
+ 		}
+ 	}
++	// comments[j] counts the comments of items[:j] that play a part.
++	comments := make([]int, len(f.items)+1)
++	for j, it := range f.items {
++		comments[j+1] = comments[j]
++		if it.kind == itemComment && !trailing[j] {
++			comments[j+1]++
++		}
++	}
+
+-	var splices []splice
+-	for _, i := range idx {
+-		splices = append(splices, f.unsetEntry(i, removed, trailing))
++	// From the last entry back, so that a forward scan reaching a removed
++	// entry can stop where that entry's own scan did.
++	forward := make(map[int]int, len(idx))
++	splices := make([]splice, len(idx))
++	for n := len(idx) - 1; n >= 0; n-- {
++		splices[n] = f.unsetEntry(idx[n], forward, comments)
+ 	}
+
+ 	// Merge the regions that overlap: a region may hold other entries.
+@@ -343,7 +350,11 @@ func (f *File) unsetEntries(idx []int) []splice {
+ 	return merged
+ }
+
+-func (f *File) unsetEntry(i int, removed, trailing map[int]bool) splice {
++// unsetEntry returns the splice that removes the entry at i. forward holds
++// where the forward scan of each removed entry after i stopped; the scan of
++// i is added to it. comments counts the comments that play a part, as
++// unsetEntries computes it.
++func (f *File) unsetEntry(i int, forward map[int]int, comments []int) splice {
+ 	sec := f.items[i].sec
+ 	sameHeader := func(it item) bool { return it.kind == itemHeader && f.secOf(it) == f.secs[sec] }
+
+@@ -360,11 +371,17 @@ func (f *File) unsetEntry(i int, removed, trailing map[int]bool) splice {
+ 	}
+ 	fw := i + 1
+ 	for ; fw < len(f.items); fw++ {
++		if end, ok := forward[fw]; ok {
++			// A removed entry: the scan goes on as its own did.
++			fw = end
++			break
++		}
+ 		it := f.items[fw]
+-		if it.kind == itemEntry && !removed[fw] || it.kind == itemHeader && !sameHeader(it) {
++		if it.kind == itemEntry || it.kind == itemHeader && !sameHeader(it) {
+ 			break
+ 		}
+ 	}
++	forward[i] = fw
+ 	if !headers || fw < len(f.items) && f.items[fw].kind == itemEntry {
+ 		return f.removeEntry(i)
+ 	}
+@@ -385,10 +402,10 @@ func (f *File) unsetEntry(i int, removed, trailing map[int]bool) splice {
+ 	if fw < len(f.items) {
+ 		end = f.items[fw].start
+ 	}
+-	for j, it := range f.items {
+-		if it.kind == itemComment && it.start >= start && it.end <= end && !trailing[j] {
+-			return f.removeEntry(i)
+-		}
++	// The region is items[from:fw]: start and end are item boundaries.
++	from, _ := slices.BinarySearchFunc(f.items, start, func(it item, start int) int { return it.start - start })
++	if comments[fw]-comments[from] > 0 {
++		return f.removeEntry(i)
+ 	}
+ 	return splice{start, end, text}
+ }
+@@ -505,18 +522,19 @@ func (f *File) renameSection(name string, sk, to sectionKey, header string) erro
+ 		if n := f.newlineAfter(h); n >= 0 {
+ 			end = n + 1
+ 		}
+-		text := header + "\n"
++		var text strings.Builder
++		text.WriteString(header + "\n")
+ 		if rest < end && f.items[rest].kind != itemNewline {
+-			text += "\t"
++			text.WriteByte('\t')
+ 			for _, it := range f.items[rest:end] {
+ 				if it.kind == itemHeader && f.secOf(it) == sk {
+-					text += header
++					text.WriteString(header)
+ 				} else {
+-					text += string(f.data[it.start:it.end])
++					text.Write(f.data[it.start:it.end])
+ 				}
+ 			}
+ 		}
+-		splices = append(splices, splice{f.ownStart(h), f.lineEnd(h), text})
++		splices = append(splices, splice{f.ownStart(h), f.lineEnd(h), text.String()})
+ 		done = end - 1
+ 	}
+ 	return f.apply(name, splices, func(before, after []flatEntry) bool {
+diff --git a/load.go b/load.go
+index ac7a002..0d2b65e 100644
+--- a/load.go
++++ b/load.go
+@@ -175,6 +175,9 @@ type loader struct {
+
+ 	branch     string
+ 	branchRead bool
++
++	realGitDir  string // with '/', "" if it cannot be resolved
++	realDirRead bool
+ }
+
+ func (e Env) newLoader() (*loader, error) {
+@@ -353,10 +356,14 @@ func (l *loader) gitdir(pattern, from string, fold bool) (bool, error) {
+ 	if globMatch(pattern, dir, fold) {
+ 		return true, nil
+ 	}
+-	if real, err := filepath.EvalSymlinks(l.repo.gitDir); err == nil {
+-		if real := filepath.ToSlash(real); real != dir {
+-			return globMatch(pattern, real, fold), nil
++	if !l.realDirRead {
++		if real, err := filepath.EvalSymlinks(l.repo.gitDir); err == nil {
++			l.realGitDir = filepath.ToSlash(real)
+ 		}
++		l.realDirRead = true
++	}
++	if l.realGitDir != "" && l.realGitDir != dir {
++		return globMatch(pattern, l.realGitDir, fold), nil
+ 	}
+ 	return false, nil
+ }

.benchspotter/sessions/01a120a2-f2e8-7ce8-a8ac-b6a8bebf1cbb/meta.json

@@ -0,0 +1,19 @@
+{
+	"name": "probes-fixed",
+	"benchs": [
+		"BenchmarkProbe"
+	],
+	"git_commit": "74c4f677f7d380f117dd4e27dccad1b7bc042184",
+	"machine": {
+		"goos": "linux",
+		"goarch": "amd64",
+		"num_cpu": 12,
+		"physical_cores": 6,
+		"threads_per_core": 2,
+		"cpu": "AMD Ryzen 5 3600 6-Core Processor",
+		"cache_l1d": 32768,
+		"cache_l2": 524288,
+		"cache_l3": 16777216
+	},
+	"go_version": "go1.27.1"
+}

.benchspotter/sessions/01a120a2-f2e8-7ce8-a8ac-b6a8bebf1cbb/results.bench

@@ -0,0 +1,59 @@
+goos: linux
+goarch: amd64
+pkg: github.com/git-bug/gitconfig
+cpu: AMD Ryzen 5 3600 6-Core Processor              
+
+BenchmarkProbe/UnsetAllSections/n=256-12 8848 126797 ns/op 224195 B/op 46 allocs/op
+BenchmarkProbe/UnsetAllSections/n=256-12 9118 128210 ns/op 224192 B/op 46 allocs/op
+BenchmarkProbe/UnsetAllSections/n=256-12 9129 128586 ns/op 224192 B/op 46 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=256-12 15631 76657 ns/op 165824 B/op 46 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=256-12 15644 77720 ns/op 165824 B/op 46 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=256-12 15744 75660 ns/op 165824 B/op 46 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=256-12 19417 62517 ns/op 160480 B/op 57 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=256-12 19240 61979 ns/op 160480 B/op 57 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=256-12 19669 61454 ns/op 160480 B/op 57 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=256-12 24957 46795 ns/op 63696 B/op 50 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=256-12 25459 46907 ns/op 63696 B/op 50 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=256-12 26306 45686 ns/op 63696 B/op 50 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=256-12 15030 80256 ns/op 213304 B/op 48 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=256-12 14792 80997 ns/op 213304 B/op 48 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=256-12 15039 80380 ns/op 213304 B/op 48 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=256-12 3999 292125 ns/op 470418 B/op 3149 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=256-12 4120 291655 ns/op 470418 B/op 3149 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=256-12 4045 299015 ns/op 470417 B/op 3149 allocs/op
+BenchmarkProbe/UnsetAllSections/n=1024-12 2222 533993 ns/op 977389 B/op 57 allocs/op
+BenchmarkProbe/UnsetAllSections/n=1024-12 2323 541567 ns/op 977390 B/op 57 allocs/op
+BenchmarkProbe/UnsetAllSections/n=1024-12 2140 561709 ns/op 977391 B/op 57 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=1024-12 3334 341217 ns/op 922733 B/op 58 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=1024-12 3610 342554 ns/op 922732 B/op 58 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=1024-12 3540 346555 ns/op 922733 B/op 58 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=1024-12 4158 307842 ns/op 946276 B/op 70 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=1024-12 4003 318898 ns/op 946276 B/op 70 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=1024-12 4124 309992 ns/op 946278 B/op 70 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=1024-12 6123 179341 ns/op 306129 B/op 62 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=1024-12 6516 179272 ns/op 306129 B/op 62 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=1024-12 6736 179813 ns/op 306129 B/op 62 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=1024-12 3250 377700 ns/op 977854 B/op 60 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=1024-12 3145 374978 ns/op 977855 B/op 60 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=1024-12 3189 366536 ns/op 977853 B/op 60 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=1024-12 1074 1.136291e+06 ns/op 1.957399e+06 B/op 12378 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=1024-12 1044 1.174265e+06 ns/op 1.9574e+06 B/op 12378 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=1024-12 1011 1.195348e+06 ns/op 1.9574e+06 B/op 12378 allocs/op
+BenchmarkProbe/UnsetAllSections/n=4096-12 416 2.928603e+06 ns/op 4.042093e+06 B/op 80 allocs/op
+BenchmarkProbe/UnsetAllSections/n=4096-12 394 3.150212e+06 ns/op 4.042095e+06 B/op 80 allocs/op
+BenchmarkProbe/UnsetAllSections/n=4096-12 382 3.067227e+06 ns/op 4.042092e+06 B/op 80 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=4096-12 618 1.86093e+06 ns/op 3.73899e+06 B/op 81 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=4096-12 662 1.841739e+06 ns/op 3.73899e+06 B/op 81 allocs/op
+BenchmarkProbe/UnsetAllFlat/n=4096-12 650 1.870803e+06 ns/op 3.73899e+06 B/op 81 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=4096-12 736 1.624229e+06 ns/op 3.777274e+06 B/op 84 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=4096-12 722 1.625224e+06 ns/op 3.777273e+06 B/op 84 allocs/op
+BenchmarkProbe/ReplaceAllFlat/n=4096-12 733 1.625364e+06 ns/op 3.777274e+06 B/op 84 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=4096-12 1546 779117 ns/op 1.594459e+06 B/op 79 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=4096-12 1620 756191 ns/op 1.594459e+06 B/op 79 allocs/op
+BenchmarkProbe/RenameSectionOneLine/n=4096-12 1562 757840 ns/op 1.594459e+06 B/op 79 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=4096-12 549 2.265801e+06 ns/op 4.013646e+06 B/op 74 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=4096-12 516 2.31401e+06 ns/op 4.013645e+06 B/op 74 allocs/op
+BenchmarkProbe/RemoveSectionSections/n=4096-12 534 2.275376e+06 ns/op 4.013646e+06 B/op 74 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=4096-12 206 5.824772e+06 ns/op 7.983289e+06 B/op 49256 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=4096-12 200 5.966529e+06 ns/op 7.983288e+06 B/op 49256 allocs/op
+BenchmarkProbe/LoadIncludeIfGitdir/n=4096-12 200 5.946946e+06 ns/op 7.983294e+06 B/op 49256 allocs/op