1 /* cmd-delta.c:
2 *
3 ****************************************************************
4 * Copyright (C) 2003 Tom Lord
5 *
6 * See the file "COPYING" for further information about
7 * the copyright and warranty status of this work.
8 */
9
10
11
12
13 #include "config-options.h"
14 #include "hackerlab/cmd/main.h"
15 #include "hackerlab/fs/file-names.h"
16 #include "hackerlab/fs/cwd.h"
17 #include "tla/libfsutils/tmp-files.h"
18 #include "tla/libfsutils/rmrf.h"
19 #include "tla/libfsutils/dir-as-cwd.h"
20 #include "tla/libarch/namespace.h"
21 #include "tla/libarch/project-tree.h"
22 #include "tla/libarch/my.h"
23 #include "tla/libarch/archive.h"
24 #include "tla/libarch/pristines.h"
25 #include "tla/libarch/local-cache.h"
26 #include "tla/libarch/make-changeset.h"
27 #include "tla/libarch/changeset-report.h"
28 #include "tla/libarch/inode-sig.h"
29 #include "tla/libarch/cmdutils.h"
30 #include "tla/libarch/cmd.h"
31 #include "tla/libarch/cmd-delta.h"
32
33
34 /* __STDC__ prototypes for static functions */
35 static t_uchar * interpret_delta_path (t_uchar ** arch, t_uchar ** rev, t_uchar * scratch_dir, t_uchar * default_archive, t_uchar * spec, t_uchar * cache_dir);
36 static void delta_callback (void * vfd, const char * fmt, va_list ap);
37
38
39
40 static t_uchar * usage = "[options] (REVISION|TREE)-A (REVISION|TREE)-B [DESTDIR]";
41 static t_uchar * version_string = (cfg__std__package " from regexps.com\n"
42 "\n"
43 "Copyright 2003 Tom Lord\n"
44 "\n"
45 "This is free software; see the source for copying conditions.\n"
46 "There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n"
47 "PARTICULAR PURPOSE.\n"
48 "\n"
49 "Report bugs to " cfg__tla_bug_mail ".\n"
50 "\n"
51 cfg__std__release_id_string
52 "\n");
53
54 #define OPTS(OP) \
55 OP (opt_help_msg, "h", "help", 0, \
56 "Display a help message and exit.") \
57 OP (opt_long_help, "H", 0, 0, \
58 "Display a verbose help message and exit.") \
59 OP (opt_version, "V", "version", 0, \
60 "Display a release identifier string\n" \
61 "and exit.") \
62 OP (opt_archive, "A", "archive", 1, \
63 "Override `my-default-archive'") \
64 OP (opt_cache, 0, "cache DIR", 1, \
65 "specify a cache root for pristine copies") \
66 OP (opt_no_changeset, "n" , "no-changeset", 0, \
67 "do not generate a changeset") \
68 OP (opt_diff, 0, "diffs", 0, \
69 "print changeset report with diffs (implies -n)") \
70 OP (opt_unescaped, 0, "unescaped", 0, \
71 "show filenames in unescaped form")
72
73
74 t_uchar arch_cmd_delta_help[] = ("compute a changeset (or diff) between any two trees or revisions\n"
75 "\n"
76 "Given (REVISION|TREE)-A and (REVISION|TREE)-B, tla will build a changeset\n"
77 "that comprises the changes between REVISION-A and REVISION-B\n"
78 "\n"
79 "Example:\n"
80 " tla delta tla--devo--1.1--patch-6 \\\n"
81 " tla--devo--1.1--patch-8 ,,changes\n"
82 "\n"
83 " Will pull patch-6 and patch-8 from tla--devo--1.1 and compute\n"
84 " a changeset, which will be saved in a newly created ,,changes\n"
85 " directory. If you would like a report instead,\n"
86 " append the --diffs option");
87
88 enum options
89 {
90 OPTS (OPT_ENUM)
91 };
92
93 static struct opt_desc opts[] =
94 {
95 OPTS (OPT_DESC)
96 {-1, 0, 0, 0, 0}
97 };
98
99
100
101 int
arch_cmd_delta(t_uchar * program_name,int argc,char * argv[])102 arch_cmd_delta (t_uchar * program_name, int argc, char * argv[])
103 {
104 int o;
105 struct opt_parsed * option;
106 t_uchar * default_archive = 0;
107 t_uchar * cache_dir = 0;
108 int no_changeset = 0;
109 int report = 0;
110 int escape_classes = arch_escape_classes;
111
112 safe_buffer_fd (1, 0, O_WRONLY, 0);
113
114 option = 0;
115
116 while (1)
117 {
118 o = opt_standard (lim_use_must_malloc, &option, opts, &argc, argv, program_name, usage, version_string, arch_cmd_delta_help, opt_help_msg, opt_long_help, opt_version);
119 if (o == opt_none)
120 break;
121 switch (o)
122 {
123 default:
124 safe_printfmt (2, "unhandled option `%s'\n", option->opt_string);
125 panic ("internal error parsing arguments");
126
127 usage_error:
128 opt_usage (2, argv[0], program_name, usage, 1);
129 exit (1);
130
131 /* bogus_arg: */
132 safe_printfmt (2, "ill-formed argument for `%s' (`%s')\n", option->opt_string, option->arg_string);
133 goto usage_error;
134
135 case opt_archive:
136 {
137 lim_free (0, default_archive);
138 default_archive = str_save (0, option->arg_string);
139 break;
140 }
141
142 case opt_cache:
143 {
144 lim_free (0, cache_dir);
145 cache_dir = str_save (0, option->arg_string);
146 break;
147 }
148
149 case opt_diff:
150 {
151 report = 1;
152 no_changeset = 1;
153 break;
154 }
155
156 case opt_no_changeset:
157 {
158 no_changeset = 1;
159 break;
160 }
161
162 case opt_unescaped:
163 {
164 escape_classes = 0;
165 break;
166 }
167 }
168 }
169
170 if (argc < 3 || argc > 4)
171 goto usage_error;
172
173 if (default_archive && !arch_valid_archive_name (default_archive))
174 {
175 safe_printfmt (2, "%s: invalid archive name (%s)\n",
176 argv[0], default_archive);
177 exit (1);
178 }
179
180 default_archive = arch_my_default_archive (default_archive);
181
182 {
183 t_uchar * a_spec;
184 t_uchar * b_spec;
185 t_uchar * dest = 0;
186 t_uchar * scratch_dir = 0;
187 t_uchar * orig = 0;
188 t_uchar * mod = 0;
189 struct arch_make_changeset_report make_report = {0, };
190 t_uchar * orig_archive = 0;
191 t_uchar * orig_revision = 0;
192 assoc_table inode_shortcut = 0;
193
194 a_spec = argv[1];
195 b_spec = argv[2];
196
197 if (argc == 4)
198 {
199 dest = str_save (0, argv[3]);
200 }
201 else
202 {
203 dest = tmp_file_name (".", ",,delta");
204 rmrf_file (dest);
205 }
206
207 scratch_dir = tmp_file_name (".", ",,delta-scratch");
208
209 orig = interpret_delta_path (&orig_archive, &orig_revision, scratch_dir, default_archive, a_spec, cache_dir);
210 mod = interpret_delta_path (0, 0, scratch_dir, default_archive, b_spec, cache_dir);
211
212 safe_printfmt (1, "* computing changeset\n");
213
214 make_report.callback = delta_callback;
215 make_report.thunk = (void *)1;
216
217 if (orig_archive)
218 {
219 arch_read_inode_sig (0, &inode_shortcut, mod, orig_archive, orig_revision);
220 }
221
222 arch_make_changeset (&make_report, orig, mod, dest, arch_unspecified_id_tagging, arch_inventory_unrecognized, rel_table_nil, inode_shortcut, 0, escape_classes);
223
224 if (report)
225 {
226 struct arch_changeset_report r = {rel_table_nil, };
227
228 safe_printfmt (1, "* changeset report\n");
229 arch_evaluate_changeset (&r, dest);
230 arch_print_changeset (1, &r, 1, escape_classes);
231
232 arch_free_changeset_report_data (&r);
233 }
234
235 rmrf_file (scratch_dir);
236
237 if (no_changeset)
238 rmrf_file (dest);
239 else
240 safe_printfmt (1, "* changeset: %s\n", dest);
241
242 lim_free (0, dest);
243 lim_free (0, scratch_dir);
244 lim_free (0, orig);
245 lim_free (0, mod);
246 lim_free (0, orig_archive);
247 lim_free (0, orig_revision);
248 free_assoc_table (inode_shortcut);
249 arch_free_make_changeset_report_data (&make_report);
250 }
251
252 lim_free (0, default_archive);
253
254 return 0;
255 }
256
257
258
259
260 static t_uchar *
interpret_delta_path(t_uchar ** arch,t_uchar ** rev,t_uchar * scratch_dir,t_uchar * default_archive,t_uchar * spec,t_uchar * cache_dir)261 interpret_delta_path (t_uchar ** arch, t_uchar ** rev, t_uchar * scratch_dir, t_uchar * default_archive, t_uchar * spec, t_uchar * cache_dir)
262 {
263 t_uchar * answer = 0;
264
265 if (arch_valid_package_name (spec, arch_maybe_archive, arch_req_patch_level, 0))
266 {
267 t_uchar * archive = 0;
268 t_uchar * revision = 0;
269 struct arch_archive *arch_struct = 0;
270
271 archive = arch_parse_package_name (arch_ret_archive, default_archive, spec);
272 revision = arch_parse_package_name (arch_ret_non_archive, 0, spec);
273
274 arch_struct = arch_archive_connect (archive, 0);
275 arch_check_for (arch_struct, arch_req_patch_level, revision);
276
277 safe_printfmt (1, "* finding or making %s\n", spec);
278
279 answer = arch_find_or_make_tmp_local_copy (1, scratch_dir, 0, cache_dir, arch_struct, archive, revision);
280 arch_archive_close (arch_struct);
281
282 if (arch)
283 *arch = archive;
284 else
285 lim_free (0, archive);
286
287 if (rev)
288 *rev = revision;
289 else
290 lim_free (0, revision);
291 }
292 else if (arch_valid_patch_level_name (spec))
293 {
294 t_uchar * archive = 0;
295 t_uchar * revision = 0;
296 t_uchar * fqvsn = 0;
297 t_uchar * tree_version = 0;
298 t_uchar * tree_root = 0;
299
300 tree_root = arch_tree_root (0, ".", 0);
301
302 if (!tree_root)
303 {
304 safe_printfmt (2, "tla delta: not in a project tree\n dir: %s\n", directory_as_cwd ("."));
305 exit (2);
306 }
307
308 fqvsn = arch_tree_version (tree_root);
309 if (!fqvsn)
310 {
311 safe_printfmt (2, "tla delta: no tree-version set\n tree: %s\n", tree_root);
312 exit (2);
313 }
314
315 archive = arch_parse_package_name (arch_ret_archive, 0, fqvsn);
316 tree_version = arch_parse_package_name (arch_ret_non_archive, 0, fqvsn);
317 revision = str_alloc_cat_many (0, tree_version, "--", spec, str_end);
318
319 safe_printfmt (1, "* finding or making %s\n", spec);
320 safe_flush (1);
321
322 answer = arch_find_or_make_tmp_local_copy (1, scratch_dir, 0, cache_dir, 0, archive, revision);
323
324 if (arch)
325 *arch = archive;
326 else
327 lim_free (0, archive);
328
329 if (rev)
330 *rev = revision;
331 else
332 lim_free (0, revision);
333
334 lim_free (0, fqvsn);
335 lim_free (0, tree_version);
336 lim_free (0, tree_root);
337 }
338 else
339 {
340 arch_check_directory (spec, 0);
341 answer = directory_as_cwd (spec);
342 }
343
344 return answer;
345 }
346
347
348 static void
delta_callback(void * vfd,const char * fmt,va_list ap)349 delta_callback (void * vfd, const char * fmt, va_list ap)
350 {
351 int fd;
352
353 fd = (int)(t_ulong)vfd;
354 safe_printfmt_va_list (fd, fmt, ap);
355 safe_flush (fd);
356 }
357
358
359
360
361
362 /* tag: Tom Lord Wed Jun 4 13:44:58 2003 (cmd-revdelta.c)
363 */
364