Commit | Line | Data |
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34e49164 C |
1 | (* adjust as convenient *) |
2 | let prefix = "/tmp/" | |
3 | let prefix = "" | |
4 | ||
5 | (* The -grouped option means that all - and + code must appear in a | |
6 | single contiguous block of - + code. This option has no effect on the | |
7 | other kinds of patterns, ie Changelog (C) or Context (@) *) | |
8 | ||
9 | (* example: gitgrep -grouped -maxlen 25 - "[A-Z][A-Z]+" + "[A-Z][A-Z]+" | |
10 | usb_21_22 *) | |
11 | ||
12 | type dir = Minus | Plus | Context | ChangeLog | |
13 | ||
14 | type res = Git of string | Block of int * string | |
15 | ||
16 | let grouped = ref false | |
17 | let maxlen = ref None | |
18 | ||
19 | let space = Str.regexp " " | |
20 | ||
21 | let matches pattern line = | |
22 | try let _ = Str.search_forward pattern line 0 in true | |
23 | with Not_found -> false | |
24 | ||
25 | let res = ref [] | |
26 | ||
27 | let scan dir pattern i = | |
28 | let rec loop skipping cl git = | |
29 | let line = input_line i in | |
30 | match Str.split space line with | |
31 | ["commit";git] -> loop false true git | |
32 | | "diff"::_ -> loop skipping false git | |
33 | | _ -> | |
34 | if String.length line > 0 && not skipping && | |
35 | ((String.get line 0 = '-' && dir = Minus) or | |
36 | (String.get line 0 = '+' && dir = Plus) or | |
37 | (cl && dir = ChangeLog) or | |
38 | (not (String.get line 0 = '-') && not (String.get line 0 = '+') && | |
39 | dir = Context)) && | |
40 | matches pattern line | |
41 | then (res := Git(git)::!res; loop true cl git) | |
42 | else loop skipping cl git in | |
43 | loop false false "" | |
44 | ||
45 | (* for Minus and Plus directions only *) | |
46 | let scan_grouped dir pattern i = | |
47 | let block = ref 0 in | |
48 | (* mp = true in minus-plus region *) | |
49 | let rec loop mp git = | |
50 | let line = input_line i in | |
51 | match Str.split space line with | |
52 | ["commit";git] -> loop false git | |
53 | | "diff"::_ -> loop false git | |
54 | | _ -> | |
55 | if String.length line > 0 | |
56 | then | |
57 | let first_char = String.get line 0 in | |
58 | let new_mp = | |
59 | match first_char with | |
60 | '-' | '+' -> (if not mp then block := !block + 1; true) | |
61 | | _ -> false in | |
62 | match (first_char,dir) with | |
63 | ('-',Minus) | ('+',Plus) -> | |
64 | let info = Block(!block,git) in | |
65 | (if matches pattern line && not (List.mem info !res) | |
66 | then res := info::!res); | |
67 | loop new_mp git | |
68 | | _ -> loop new_mp git | |
69 | else loop mp git in | |
70 | loop false "" | |
71 | ||
72 | let scan_line max i = | |
73 | let rec loop skipping num git = | |
74 | let line = input_line i in | |
75 | match Str.split space line with | |
76 | ["commit";git1] -> | |
77 | loop false (-1) git1 | |
78 | | "diff"::_ -> | |
79 | if num > max && not skipping | |
80 | then (res:=Git(git)::!res;loop true (num+1) git) | |
81 | else loop skipping (if num = (-1) then 1 else num+1) git | |
82 | | _ -> | |
83 | if num > max && not skipping | |
84 | then (res:=Git(git)::!res;loop true (num+1) git) | |
85 | else loop skipping (if num = (-1) then num else num+1) git in | |
86 | loop false (-1) "" | |
87 | ||
88 | let dot = Str.regexp "\\." | |
89 | ||
90 | let open_git file = | |
91 | let tmp = prefix^file in | |
92 | if Sys.file_exists tmp | |
93 | then open_in tmp | |
94 | else | |
95 | match List.rev (Str.split dot file) with | |
96 | last::rest -> | |
97 | let last_int = int_of_string last in | |
98 | if last_int = 0 | |
99 | then | |
100 | failwith | |
101 | "can't go back one version from 0; make the log file by hand"; | |
102 | let prev = | |
103 | String.concat "." (List.rev ((string_of_int (last_int-1))::rest)) in | |
104 | let _ = | |
105 | Sys.command | |
106 | (Printf.sprintf "git log -p v%s..v%s > %s" prev file tmp) in | |
107 | open_in tmp | |
108 | | _ -> open_in file | |
109 | ||
110 | let rec split_args = function | |
111 | [] -> [] | |
112 | | "-grouped"::rest -> grouped := true; split_args rest | |
113 | | "-maxlen"::len::rest -> maxlen := Some (int_of_string len); split_args rest | |
114 | | "-"::pattern::rest -> (Minus,Str.regexp pattern) :: split_args rest | |
115 | | "+"::pattern::rest -> (Plus,Str.regexp pattern) :: split_args rest | |
116 | | "@"::pattern::rest -> (Context,Str.regexp pattern) :: split_args rest | |
117 | | "C"::pattern::rest -> (ChangeLog,Str.regexp pattern) :: split_args rest | |
118 | | _ -> failwith "bad argument list" | |
119 | ||
120 | let process_one (dir,pattern) version = | |
121 | res := []; | |
122 | let i = open_git version in | |
123 | try | |
124 | if !grouped && (dir = Minus or dir = Plus) | |
125 | then scan_grouped dir pattern i | |
126 | else scan dir pattern i | |
127 | with End_of_file -> (close_in i; List.rev !res) | |
128 | ||
129 | let process_len max version = | |
130 | res := []; | |
131 | let i = open_git version in | |
132 | try scan_line max i | |
133 | with End_of_file -> (close_in i; List.rev !res) | |
134 | ||
135 | let inter l1 l2 = | |
136 | List.rev | |
137 | (List.fold_left | |
138 | (function prev -> | |
139 | function | |
140 | (Git(git)) as x -> | |
141 | let rec loop = function | |
142 | [] -> prev | |
143 | | Git(git1)::rest when git = git1 -> x::prev | |
144 | | Block(b1,git1)::rest when git = git1 -> Block(b1,git1)::prev | |
145 | | _::rest -> loop rest in | |
146 | loop l2 | |
147 | | (Block(block,git)) as x -> | |
148 | let rec loop = function | |
149 | [] -> prev | |
150 | | Git(git1)::rest when git = git1 -> x::prev | |
151 | | Block(b1,git1)::rest when block = b1 && git = git1 -> | |
152 | Block(b1,git1)::prev | |
153 | | _::rest -> loop rest in | |
154 | loop l2) | |
155 | [] l1) | |
156 | ||
157 | let _ = | |
158 | if Array.length Sys.argv < 4 | |
159 | then failwith "arguments: -/+/@/C pattern -/+/@/C pattern ... version"; | |
160 | let args = List.tl(Array.to_list Sys.argv) in | |
161 | let version = List.hd(List.rev args) in | |
162 | let pairs = List.rev(List.tl(List.rev args)) in | |
163 | let requirements = split_args pairs in | |
164 | let res = | |
165 | List.map (function Git x -> x | Block (_,x) -> x) | |
166 | (List.fold_left | |
167 | (function all -> | |
168 | function pattern -> | |
169 | inter (process_one pattern version) all) | |
170 | (process_one (List.hd requirements) version) | |
171 | (List.tl requirements)) in | |
172 | let res = | |
173 | if !grouped | |
174 | then | |
175 | List.rev | |
176 | (List.fold_left | |
177 | (function prev -> | |
178 | function x -> if List.mem x prev then prev else x::prev) | |
179 | [] res) | |
180 | else res in | |
181 | let res = | |
182 | match !maxlen with | |
183 | None -> res | |
184 | | Some max -> | |
185 | let badgits = process_len max version in | |
186 | List.filter (function x -> not(List.mem (Git(x)) badgits)) res in | |
187 | List.iter (function name -> Printf.printf "%s\n" name) res |