| rev |
line source |
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bsw@2
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1 slot.put_into("title", _"Diff")
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bsw@2
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2
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bsw@2
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3 local old_draft_id = param.get("old_draft_id", atom.integer)
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bsw@2
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4 local new_draft_id = param.get("new_draft_id", atom.integer)
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bsw@2
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5
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bsw@10
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6 if not old_draft_id or not new_draft_id then
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bsw@10
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7 slot.put( _"Please choose two versions of the draft to compare")
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bsw@10
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8 return
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bsw@10
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9 end
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bsw@10
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10
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bsw@10
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11 if old_draft_id == new_draft_id then
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bsw@10
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12 slot.put( _"Please choose two different versions of the draft to compare")
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bsw@10
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13 return
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bsw@10
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14 end
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bsw@10
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15
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bsw@2
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16 if old_draft_id > new_draft_id then
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bsw@2
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17 local tmp = old_draft_id
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bsw@2
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18 old_draft_id = new_draft_id
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bsw@2
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19 new_draft_id = tmp
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bsw@2
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20 end
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bsw@2
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21
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bsw@2
|
22 local old_draft = Draft:by_id(old_draft_id)
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bsw@2
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23 local new_draft = Draft:by_id(new_draft_id)
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bsw@2
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24
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bsw@2
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25 local key = multirand.string(26, "123456789bcdfghjklmnpqrstvwxyz");
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bsw@2
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26
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bsw@2
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27 local old_draft_filename = encode.file_path(request.get_app_basepath(), 'tmp', "diff-" .. key .. "-old.tmp")
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bsw@2
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28 local new_draft_filename = encode.file_path(request.get_app_basepath(), 'tmp', "diff-" .. key .. "-new.tmp")
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bsw@2
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29
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bsw@2
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30 local old_draft_file = assert(io.open(old_draft_filename, "w"))
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bsw@2
|
31 old_draft_file:write(old_draft.content)
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bsw@2
|
32 old_draft_file:write("\n")
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bsw@2
|
33 old_draft_file:close()
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bsw@2
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34
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bsw@2
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35 local new_draft_file = assert(io.open(new_draft_filename, "w"))
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bsw@2
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36 new_draft_file:write(new_draft.content)
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bsw@2
|
37 new_draft_file:write("\n")
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bsw@2
|
38 new_draft_file:close()
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bsw@2
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39
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bsw@2
|
40 local output, err, status = os.pfilter(nil, "sh", "-c", "diff -U 100000 '" .. old_draft_filename .. "' '" .. new_draft_filename .. "' | grep -v ^--- | grep -v ^+++ | grep -v ^@")
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bsw@2
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41
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bsw@2
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42 os.remove(old_draft_filename)
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bsw@2
|
43 os.remove(new_draft_filename)
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bsw@2
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44
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bsw@2
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45 if not status then
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bsw@2
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46 ui.field.text{ value = _"The drafts do not differ" }
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bsw@2
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47 else
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bsw@2
|
48 slot.put('<table class="diff">')
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bsw@2
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49 slot.put('<tr><th width="50%">' .. _"Old draft revision" .. '</th><th width="50%">' .. _"New draft revision" .. '</th></tr>')
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bsw@39
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50
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bsw@2
|
51 local last_state = "unchanged"
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bsw@2
|
52 local lines = {}
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bsw@2
|
53 local removed_lines = nil
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bsw@39
|
54
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bsw@39
|
55 local function process_line(line)
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bsw@2
|
56 local state = "unchanged"
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bsw@2
|
57 local char = line:sub(1,1)
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bsw@2
|
58 line = line:sub(2)
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bsw@2
|
59 state = "unchanged"
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bsw@2
|
60 if char == "-" then
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bsw@2
|
61 state = "-"
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bsw@2
|
62 elseif char == "+" then
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bsw@2
|
63 state = "+"
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bsw@39
|
64 elseif char == "!" then
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bsw@39
|
65 state = "eof"
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bsw@2
|
66 end
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bsw@2
|
67 if last_state == "unchanged" then
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bsw@2
|
68 if state == "unchanged" then
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bsw@2
|
69 lines[#lines+1] = line
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bsw@39
|
70 elseif (state == "-") or (state == "+") or (state == "eof") then
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bsw@39
|
71 local text = table.concat(lines, "\n")
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bsw@40
|
72 slot.put("<tr><td>", encode.html_newlines(encode.html(text)), "</td><td>", encode.html_newlines(encode.html(text)), "</td></tr>")
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bsw@2
|
73 lines = { line }
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bsw@2
|
74 end
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bsw@2
|
75 elseif last_state == "-" then
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bsw@2
|
76 if state == "-" then
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bsw@2
|
77 lines[#lines+1] = line
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bsw@2
|
78 elseif state == "+" then
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bsw@2
|
79 removed_lines = lines
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bsw@2
|
80 lines = { line }
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bsw@39
|
81 elseif (state == "unchanged") or (state == "eof") then
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bsw@39
|
82 local text = table.concat(lines,"\n")
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bsw@39
|
83 slot.put('<tr><td class="removed">', encode.html_newlines(encode.html(text)), "</td><td></td></tr>")
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bsw@2
|
84 lines = { line }
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bsw@2
|
85 end
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bsw@2
|
86 elseif last_state == "+" then
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bsw@2
|
87 if state == "+" then
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bsw@2
|
88 lines[#lines+1] = line
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bsw@39
|
89 elseif (state == "-") or (state == "unchanged") or (state == "eof") then
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bsw@2
|
90 if removed_lines then
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bsw@39
|
91 local text = table.concat(lines, "\n")
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bsw@39
|
92 local removed_text = table.concat(removed_lines, "\n")
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bsw@39
|
93 slot.put('<tr><td class="removed">', encode.html_newlines(encode.html(removed_text)), '</td><td class="added">', encode.html_newlines(encode.html(text)), "</td></tr>")
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bsw@2
|
94 else
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bsw@39
|
95 local text = table.concat(lines, "\n")
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bsw@39
|
96 slot.put('<tr><td></td><td class="added">', encode.html_newlines(encode.html(text)), "</td></tr>")
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bsw@2
|
97 end
|
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bsw@2
|
98 removed_lines = nil
|
|
bsw@2
|
99 lines = { line }
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bsw@2
|
100 end
|
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bsw@2
|
101 end
|
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bsw@2
|
102 last_state = state
|
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bsw@39
|
103 end
|
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bsw@39
|
104
|
|
bsw@39
|
105 output = output .. " "
|
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bsw@39
|
106 output = output:gsub("[^\n\r]+", function(line)
|
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bsw@39
|
107 process_line(line)
|
|
bsw@2
|
108 end)
|
|
bsw@39
|
109 process_line("!")
|
|
bsw@39
|
110
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|
bsw@2
|
111 slot.put("</table>")
|
|
bsw@2
|
112 end
|
|
bsw@2
|
113
|