2 * Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen
3 * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix
4 * This file is part of Coccinelle.
6 * Coccinelle is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, according to version 2 of the License.
10 * Coccinelle is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with Coccinelle. If not, see <http://www.gnu.org/licenses/>.
18 * The authors reserve the right to distribute this or future versions of
19 * Coccinelle under other licenses.
23 (* adjust as convenient *)
27 (* The -grouped option means that all - and + code must appear in a
28 single contiguous block of - + code. This option has no effect on the
29 other kinds of patterns, ie Changelog (C) or Context (@) *)
31 (* example: gitgrep -grouped -maxlen 25 - "[A-Z][A-Z]+" + "[A-Z][A-Z]+"
34 type dir
= Minus
| Plus
| Context
| ChangeLog
36 type res
= Git
of string | Block
of int * string
38 let grouped = ref false
41 let space = Str.regexp
" "
43 let matches pattern line
=
44 try let _ = Str.search_forward pattern line
0 in true
45 with Not_found
-> false
49 let scan dir pattern i
=
50 let rec loop skipping cl git
=
51 let line = input_line i
in
52 match Str.split
space line with
53 ["commit";git
] -> loop false true git
54 | "diff"::_ -> loop skipping
false git
56 if String.length
line > 0 && not skipping
&&
57 ((String.get
line 0 = '
-'
&& dir
= Minus
) or
58 (String.get
line 0 = '
+'
&& dir
= Plus
) or
59 (cl
&& dir
= ChangeLog
) or
60 (not
(String.get
line 0 = '
-'
) && not
(String.get
line 0 = '
+'
) &&
63 then (res := Git
(git
)::!res; loop true cl git
)
64 else loop skipping cl git
in
67 (* for Minus and Plus directions only *)
68 let scan_grouped dir pattern i
=
70 (* mp = true in minus-plus region *)
72 let line = input_line i
in
73 match Str.split
space line with
74 ["commit";git
] -> loop false git
75 | "diff"::_ -> loop false git
77 if String.length
line > 0
79 let first_char = String.get
line 0 in
82 '
-'
| '
+'
-> (if not mp
then block := !block + 1; true)
84 match (first_char,dir
) with
85 ('
-'
,Minus
) | ('
+'
,Plus
) ->
86 let info = Block
(!block,git
) in
87 (if matches pattern
line && not
(List.mem
info !res)
88 then res := info::!res);
90 | _ -> loop new_mp git
95 let rec loop skipping num git
=
96 let line = input_line i
in
97 match Str.split
space line with
101 if num
> max
&& not skipping
102 then (res:=Git
(git
)::!res;loop true (num
+1) git
)
103 else loop skipping
(if num
= (-1) then 1 else num
+1) git
105 if num
> max
&& not skipping
106 then (res:=Git
(git
)::!res;loop true (num
+1) git
)
107 else loop skipping
(if num
= (-1) then num
else num
+1) git
in
110 let dot = Str.regexp
"\\."
113 let tmp = prefix^file
in
114 if Sys.file_exists
tmp
117 match List.rev
(Str.split
dot file
) with
119 let last_int = int_of_string last
in
123 "can't go back one version from 0; make the log file by hand";
125 String.concat
"." (List.rev
((string_of_int
(last_int-1))::rest
)) in
128 (Printf.sprintf
"git log -p v%s..v%s > %s" prev file
tmp) in
132 let rec split_args = function
134 | "-grouped"::rest
-> grouped := true; split_args rest
135 | "-maxlen"::len
::rest
-> maxlen := Some
(int_of_string len
); split_args rest
136 | "-"::pattern
::rest
-> (Minus
,Str.regexp pattern
) :: split_args rest
137 | "+"::pattern
::rest
-> (Plus
,Str.regexp pattern
) :: split_args rest
138 | "@"::pattern
::rest
-> (Context
,Str.regexp pattern
) :: split_args rest
139 | "C"::pattern
::rest
-> (ChangeLog
,Str.regexp pattern
) :: split_args rest
140 | _ -> failwith
"bad argument list"
142 let process_one (dir
,pattern
) version
=
144 let i = open_git version
in
146 if !grouped && (dir
= Minus
or dir
= Plus
)
147 then scan_grouped dir pattern
i
148 else scan dir pattern
i
149 with End_of_file
-> (close_in
i; List.rev
!res)
151 let process_len max version
=
153 let i = open_git version
in
155 with End_of_file
-> (close_in
i; List.rev
!res)
163 let rec loop = function
165 | Git
(git1
)::rest
when git
= git1
-> x
::prev
166 | Block
(b1
,git1
)::rest
when git
= git1
-> Block
(b1
,git1
)::prev
167 | _::rest
-> loop rest
in
169 | (Block
(block,git
)) as x
->
170 let rec loop = function
172 | Git
(git1
)::rest
when git
= git1
-> x
::prev
173 | Block
(b1
,git1
)::rest
when block = b1
&& git
= git1
->
175 | _::rest
-> loop rest
in
180 if Array.length
Sys.argv
< 4
181 then failwith
"arguments: -/+/@/C pattern -/+/@/C pattern ... version";
182 let args = List.tl
(Array.to_list
Sys.argv
) in
183 let version = List.hd
(List.rev
args) in
184 let pairs = List.rev
(List.tl
(List.rev
args)) in
185 let requirements = split_args pairs in
187 List.map
(function Git x
-> x
| Block
(_,x
) -> x
)
191 inter (process_one pattern
version) all
)
192 (process_one (List.hd
requirements) version)
193 (List.tl
requirements)) in
200 function x
-> if List.mem x
prev then prev else x
::prev)
207 let badgits = process_len max
version in
208 List.filter
(function x
-> not
(List.mem
(Git
(x
)) badgits)) res in
209 List.iter
(function name
-> Printf.printf
"%s\n" name
) res