4 * Copyright (C) Linus Torvalds 2005
13 static int verbose = 0;
16 * This is a really stupid program that takes cvsps output, and
17 * generates a a long _shell_script_ that will create the GIT archive
20 * You've been warned. I told you it was stupid.
22 * NOTE NOTE NOTE! In order to do branches correctly, this needs
23 * the fixed cvsps that has the "Ancestor branch" tag output.
24 * Hopefully David Mansfield will update his distribution soon
25 * enough (he's the one who wrote the patch, so at least we don't
26 * have to figt maintainer issues ;)
31 * cvs2git --cvsroot=[root] --module=[module] > script
33 * Creates a shell script that will generate the .git archive of
34 * the names CVS repository.
36 * IMPORTANT NOTE ABOUT "cvsps"! This requires version 2.1 or better,
37 * and the "TZ=UTC" and the "-A" flag is required for sane results!
45 static const char *cvsroot;
46 static const char *cvsmodule;
48 static char date[100];
49 static char author[100];
50 static char branch[100];
51 static char ancestor[100];
53 static char log[32768];
54 static int loglen = 0;
55 static int initial_commit = 1;
57 static void lookup_author(char *n, char **name, char **email)
60 * FIXME!!! I'm lazy and stupid.
62 * This could be something like
64 * printf("lookup_author '%s'\n", n);
65 * *name = "$author_name";
66 * *email = "$author_email";
68 * and that would allow the script to do its own
69 * lookups at run-time.
75 static void prepare_commit(void)
77 char *author_name, *author_email;
80 lookup_author(author, &author_name, &author_email);
82 printf("export GIT_COMMITTER_NAME=%s\n", author_name);
83 printf("export GIT_COMMITTER_EMAIL=%s\n", author_email);
84 printf("export GIT_COMMITTER_DATE='+0000 %s'\n", date);
86 printf("export GIT_AUTHOR_NAME=%s\n", author_name);
87 printf("export GIT_AUTHOR_EMAIL=%s\n", author_email);
88 printf("export GIT_AUTHOR_DATE='+0000 %s'\n", date);
93 src_branch = *ancestor ? ancestor : branch;
94 if (!strcmp(src_branch, "HEAD"))
95 src_branch = "master";
96 printf("ln -sf refs/heads/'%s' .git/HEAD\n", src_branch);
99 * Even if cvsps claims an ancestor, we'll let the new
100 * branch name take precedence if it already exists
104 if (!strcmp(src_branch, "HEAD"))
105 src_branch = "master";
106 printf("[ -e .git/refs/heads/'%s' ] && ln -sf refs/heads/'%s' .git/HEAD\n",
107 src_branch, src_branch);
110 printf("git-read-tree -m HEAD || exit 1\n");
111 printf("git-checkout-cache -f -u -a\n");
114 static void commit(void)
116 const char *cmit_parent = initial_commit ? "" : "-p HEAD";
117 const char *dst_branch;
120 printf("tree=$(git-write-tree)\n");
121 printf("cat > .cmitmsg <<EOFMSG\n");
123 /* Escape $ characters, and remove control characters */
124 for (i = 0; i < loglen; i++) {
125 unsigned char c = log[i];
134 if (c == '\n' || c == '\t')
141 printf("\nEOFMSG\n");
142 printf("commit=$(cat .cmitmsg | git-commit-tree $tree %s)\n", cmit_parent);
145 if (!strcmp(dst_branch, "HEAD"))
146 dst_branch = "master";
148 printf("echo $commit > .git/refs/heads/'%s'\n", dst_branch);
150 printf("echo 'Committed (to %s):' ; cat .cmitmsg; echo\n", dst_branch);
162 static void update_file(char *line)
164 char *name, *version;
167 while (isspace(*line))
170 line = strchr(line, ':');
174 line = strchr(line, '>');
179 line = strchr(line, '(');
180 if (line) { /* "(DEAD)" */
181 printf("git-update-cache --force-remove '%s'\n", name);
185 dir = strrchr(name, '/');
187 printf("mkdir -p %.*s\n", (int)(dir - name), name);
189 printf("cvs -q -d %s checkout -r%s -p '%s/%s' > '%s'\n", cvsroot, version, cvsmodule, name, name);
190 printf("git-update-cache --add -- '%s'\n", name);
198 { "Author:", author },
199 { "Branch:", branch },
200 { "Ancestor branch:", ancestor },
206 int main(int argc, char **argv)
208 static char line[1000];
209 enum state state = Header;
212 for (i = 1; i < argc; i++) {
213 const char *arg = argv[i];
214 if (!memcmp(arg, "--cvsroot=", 10)) {
218 if (!memcmp(arg, "--module=", 9)) {
222 if (!strcmp(arg, "-v")) {
230 cvsroot = getenv("CVSROOT");
232 if (!cvsmodule || !cvsroot) {
233 fprintf(stderr, "I need a CVSROOT and module name\n");
237 printf("[ -d .git ] && exit 1\n");
238 printf("git-init-db\n");
239 printf("mkdir -p .git/refs/heads\n");
240 printf("mkdir -p .git/refs/tags\n");
241 printf("ln -sf refs/heads/master .git/HEAD\n");
243 while (fgets(line, sizeof(line), stdin) != NULL) {
244 int linelen = strlen(line);
246 while (linelen && isspace(line[linelen-1]))
250 struct hdrentry *entry;
254 printf("# H: %s\n", line);
255 for (entry = hdrs ; entry->name ; entry++) {
256 int len = strlen(entry->name);
259 if (memcmp(entry->name, line, len))
267 while (isspace(*val)) {
271 memcpy(entry->dest, val, linelen+1);
278 printf("# L: %s\n", line);
279 if (!strcmp(line, "Members:")) {
280 while (loglen && isspace(log[loglen-1]))
287 if (loglen + linelen + 5 > sizeof(log))
289 memcpy(log + loglen, line, linelen);
291 log[loglen++] = '\n';
296 printf("# M: %s\n", line);