summaryrefslogtreecommitdiffstats
path: root/pkg/gui/staging_panel.go
blob: a6eecb8b0643407b49f82bddb04becb0ee224d5b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
package gui

import (
	"strings"

	"github.com/jesseduffield/gocui"
	"github.com/jesseduffield/lazygit/pkg/commands"
)

func (gui *Gui) refreshStagingPanel(forceSecondaryFocused bool, selectedLineIdx int) error {
	gui.State.SplitMainPanel = true

	state := gui.State.Panels.LineByLine

	// We need to force focus here because the confirmation panel for safely staging lines does not return focus automatically.
	// This is because if we tell it to return focus it will unconditionally return it to the main panel which may not be what we want
	// e.g. in the event that there's nothing left to stage.
	if err := gui.switchFocus(gui.g, nil, gui.getMainView()); err != nil {
		return err
	}

	file, err := gui.getSelectedFile(gui.g)
	if err != nil {
		if err != gui.Errors.ErrNoFiles {
			return err
		}
		return gui.handleStagingEscape(gui.g, nil)
	}

	if !file.HasUnstagedChanges && !file.HasStagedChanges {
		return gui.handleStagingEscape(gui.g, nil)
	}

	secondaryFocused := false
	if forceSecondaryFocused {
		secondaryFocused = true
	} else {
		if state != nil {
			secondaryFocused = state.SecondaryFocused
		}
	}

	if (secondaryFocused && !file.HasStagedChanges) || (!secondaryFocused && !file.HasUnstagedChanges) {
		secondaryFocused = !secondaryFocused
	}

	if secondaryFocused {
		gui.getMainView().Title = gui.Tr.SLocalize("StagedChanges")
		gui.getSecondaryView().Title = gui.Tr.SLocalize("UnstagedChanges")
	} else {
		gui.getMainView().Title = gui.Tr.SLocalize("UnstagedChanges")
		gui.getSecondaryView().Title = gui.Tr.SLocalize("StagedChanges")
	}

	// note for custom diffs, we'll need to send a flag here saying not to use the custom diff
	diff := gui.GitCommand.Diff(file, true, secondaryFocused)
	secondaryDiff := gui.GitCommand.Diff(file, true, !secondaryFocused)

	// if we have e.g. a deleted file with nothing else to the diff will have only
	// 4-5 lines in which case we'll swap panels
	if len(strings.Split(diff, "\n")) < 5 {
		if len(strings.Split(secondaryDiff, "\n")) < 5 {
			return gui.handleStagingEscape(gui.g, nil)
		}
		secondaryFocused = !secondaryFocused
		diff, secondaryDiff = secondaryDiff, diff
	}

	empty, err := gui.refreshLineByLinePanel(diff, secondaryDiff, secondaryFocused, selectedLineIdx)
	if err != nil {
		return err
	}

	if empty {
		return gui.handleStagingEscape(gui.g, nil)
	}

	return nil
}

func (gui *Gui) handleTogglePanelClick(g *gocui.Gui, v *gocui.View) error {
	state := gui.State.Panels.LineByLine

	state.SecondaryFocused = !state.SecondaryFocused

	return gui.refreshStagingPanel(false, v.SelectedLineIdx())
}

func (gui *Gui) handleTogglePanel(g *gocui.Gui, v *gocui.View) error {
	state := gui.State.Panels.LineByLine

	state.SecondaryFocused = !state.SecondaryFocused
	return gui.refreshStagingPanel(false, -1)
}

func (gui *Gui) handleStagingEscape(g *gocui.Gui, v *gocui.View) error {
	gui.State.Panels.LineByLine = nil

	return gui.switchFocus(gui.g, nil, gui.getFilesView())
}

func (gui *Gui) handleStageSelection(g *gocui.Gui, v *gocui.View) error {
	return gui.applySelectionWithPrompt(false)
}

func (gui *Gui) handleResetSelection(g *gocui.Gui, v *gocui.View) error {
	return gui.applySelectionWithPrompt(true)
}

func (gui *Gui) applySelectionWithPrompt(reverse bool) error {
	state := gui.State.Panels.LineByLine

	if !reverse && state.SecondaryFocused {
		return gui.createErrorPanel(gui.g, gui.Tr.SLocalize("CantStageStaged"))
	} else if reverse && !state.SecondaryFocused && !gui.Config.GetUserConfig().GetBool("gui.skipUnstageLineWarning") {
		return gui.createConfirmationPanel(gui.g, gui.getMainView(), false, "unstage lines", "Are you sure you want to unstage these lines? It is irreversible.\nTo disable this dialogue set the config key of 'gui.skipUnstageLineWarning' to true", func(*gocui.Gui, *gocui.View) error {
			return gui.applySelection(reverse)
		}, nil)
	}

	return gui.applySelection(reverse)
}

func (gui *Gui) applySelection(reverse bool) error {
	state := gui.State.Panels.LineByLine

	file, err := gui.getSelectedFile(gui.g)
	if err != nil {
		return err
	}

	patch := commands.ModifiedPatchForRange(gui.Log, file.Name, state.Diff, state.FirstLineIdx, state.LastLineIdx, reverse, false)

	if patch == "" {
		return nil
	}

	// apply the patch then refresh this panel
	// create a new temp file with the patch, then call git apply with that patch
	applyFlags := []string{}
	if !reverse || state.SecondaryFocused {
		applyFlags = append(applyFlags, "cached")
	}
	err = gui.GitCommand.ApplyPatch(patch, applyFlags...)
	if err != nil {
		return gui.createErrorPanel(gui.g, err.Error())
	}

	if state.SelectMode == RANGE {
		state.SelectMode = LINE
	}

	if err := gui.refreshFiles(); err != nil {
		return err
	}
	if err := gui.refreshStagingPanel(false, -1); err != nil {
		return err
	}
	return nil
}

func (gui *Gui) handleMouseDownSecondaryWhileStaging(g *gocui.Gui, v *gocui.View) error {
	state := gui.State.Panels.LineByLine

	state.SecondaryFocused = !state.SecondaryFocused

	return gui.refreshStagingPanel(false, -1)
}