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