Support range select removing files from a commit

pkg/integration/tests/commit/discard_old_file_change.go

@@ -43,7 +43,7 @@ var DiscardOldFileChange = NewIntegrationTest(NewIntegrationTestArgs{
 
 		t.ExpectPopup().Confirmation().
 			Title(Equals("Discard file changes")).
-			Content(Equals("Are you sure you want to discard this commit's changes to this file? The file was added in this commit, so it will be deleted again.")).
+			Content(Equals("Are you sure you want to remove changes to the selected file(s) from this commit?\n\nThis action will start a rebase, reverting these file changes. Be aware that if subsequent commits depend on these changes, you may need to resolve conflicts.\nNote: This will also reset any active custom patches.")).
 			Confirm()
 
 		t.Views().CommitFiles().

pkg/integration/tests/commit/discard_range_select.go

@@ -0,0 +1,131 @@
+package commit
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var DiscardRangeSelect = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Discarding a range of files from an old commit.",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	SetupConfig:  func(config *config.AppConfig) {},
+	SetupRepo: func(shell *Shell) {
+		shell.CreateFileAndAdd("dir1/file0", "file0\n")
+		shell.CreateFileAndAdd("dir1/dir2/file1", "file1\n")
+		shell.CreateFileAndAdd("dir3/file1", "d3f1 content\n")
+		shell.CreateFileAndAdd("dir3/file4", "d3f4 content\n")
+		shell.Commit("first commit")
+
+		shell.UpdateFileAndAdd("dir3/file1", "d3f1 content\nsecond line\n")
+		shell.CreateFileAndAdd("dir3/file2", "d3f2 content\n")
+		shell.CreateFileAndAdd("dir3/file3", "d3f3 content\n")
+		shell.DeleteFileAndAdd("dir3/file4")
+		shell.Commit("first commit to change")
+
+		shell.CreateFileAndAdd("dir1/fileToRemove", "file to remove content\n")
+		shell.CreateFileAndAdd("dir1/multiLineFile", "this file has\ncontent on\nthree lines\n")
+		shell.CreateFileAndAdd("dir1/dir2/file2ToRemove", "file2 to remove content\n")
+		shell.Commit("second commit to change")
+
+		shell.CreateFileAndAdd("file3", "file3")
+		shell.Commit("third commit")
+	},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		t.Views().Commits().
+			Focus().
+			Lines(
+				Contains("third commit").IsSelected(),
+				Contains("second commit to change"),
+				Contains("first commit to change"),
+				Contains("first commit"),
+			).
+			NavigateToLine(Contains("first commit to change")).
+			PressEnter()
+
+		t.Views().CommitFiles().
+			IsFocused().
+			Lines(
+				Contains("dir3").IsSelected(),
+				Contains("file1"),
+				Contains("file2"),
+				Contains("file3"),
+				Contains("file4"),
+			).
+			NavigateToLine(Contains("file1")).
+			Press(keys.Universal.ToggleRangeSelect).
+			NavigateToLine(Contains("file4")).
+			Press(keys.Universal.Remove)
+
+		t.ExpectPopup().Confirmation().
+			Title(Equals("Discard file changes")).
+			Content(Equals("Are you sure you want to remove changes to the selected file(s) from this commit?\n\nThis action will start a rebase, reverting these file changes. Be aware that if subsequent commits depend on these changes, you may need to resolve conflicts.\nNote: This will also reset any active custom patches.")).
+			Confirm()
+
+		t.Views().CommitFiles().
+			IsFocused().
+			Lines(
+				Contains("(none)"),
+			).
+			// for some reason I need to press escape twice. Seems like it happens every time
+			// more than one file is removed from a commit
+			PressEscape().
+			PressEscape()
+
+		t.Views().Commits().
+			IsFocused().
+			Lines(
+				Contains("third commit"),
+				Contains("second commit to change"),
+				Contains("first commit to change").IsSelected(),
+				Contains("first commit"),
+			).
+			NavigateToLine(Contains("second commit to change")).
+			PressEnter()
+
+		t.Views().CommitFiles().
+			IsFocused().
+			Lines(
+				Contains("dir1").IsSelected(),
+				Contains("dir2"),
+				Contains("file2ToRemove"),
+				Contains("fileToRemove"),
+				Contains("multiLineFile"),
+			).
+			NavigateToLine(Contains("multiLineFile")).
+			PressEnter()
+
+		t.Views().PatchBuilding().
+			IsFocused().
+			SelectedLine(
+				Contains("+this file has"),
+			).
+			PressPrimaryAction().
+			PressEscape()
+
+		t.Views().CommitFiles().
+			IsFocused().
+			Lines(
+				Contains("dir1"),
+				Contains("dir2"),
+				Contains("file2ToRemove"),
+				Contains("fileToRemove"),
+				Contains("multiLineFile").IsSelected(),
+			).
+			NavigateToLine(Contains("dir1")).
+			Press(keys.Universal.ToggleRangeSelect).
+			NavigateToLine(Contains("dir2")).
+			Press(keys.Universal.Remove)
+
+		t.ExpectPopup().Confirmation().
+			Title(Equals("Discard file changes")).
+			Content(Equals("Are you sure you want to remove changes to the selected file(s) from this commit?\n\nThis action will start a rebase, reverting these file changes. Be aware that if subsequent commits depend on these changes, you may need to resolve conflicts.\nNote: This will also reset any active custom patches.")).
+			Confirm()
+
+		t.Views().CommitFiles().
+			IsFocused().
+			Lines(
+				Contains("(none)"),
+			)
+	},
+})