+++ /dev/null
-/*
- * cvs2git
- *
- * Copyright (C) Linus Torvalds 2005
- */
-
-#include <stdio.h>
-#include <ctype.h>
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-static int verbose = 0;
-
-/*
- * This is a really stupid program that takes cvsps output, and
- * generates a a long _shell_script_ that will create the GIT archive
- * from it.
- *
- * You've been warned. I told you it was stupid.
- *
- * NOTE NOTE NOTE! In order to do branches correctly, this needs
- * the fixed cvsps that has the "Ancestor branch" tag output.
- * Hopefully David Mansfield will update his distribution soon
- * enough (he's the one who wrote the patch, so at least we don't
- * have to figt maintainer issues ;)
- *
- * Usage:
- *
- * TZ=UTC cvsps -A |
- * cvs2git --cvsroot=[root] --module=[module] > script
- *
- * Creates a shell script that will generate the .git archive of
- * the names CVS repository.
- *
- * IMPORTANT NOTE ABOUT "cvsps"! This requires version 2.1 or better,
- * and the "TZ=UTC" and the "-A" flag is required for sane results!
- */
-enum state {
- Header,
- Log,
- Members
-};
-
-static const char *cvsroot;
-static const char *cvsmodule;
-
-static char date[100];
-static char author[100];
-static char branch[100];
-static char ancestor[100];
-static char tag[100];
-static char log[32768];
-static int loglen = 0;
-static int initial_commit = 1;
-
-static void lookup_author(char *n, char **name, char **email)
-{
- /*
- * FIXME!!! I'm lazy and stupid.
- *
- * This could be something like
- *
- * printf("lookup_author '%s'\n", n);
- * *name = "$author_name";
- * *email = "$author_email";
- *
- * and that would allow the script to do its own
- * lookups at run-time.
- */
- *name = n;
- *email = n;
-}
-
-static void prepare_commit(void)
-{
- char *author_name, *author_email;
- char *src_branch;
-
- lookup_author(author, &author_name, &author_email);
-
- printf("export GIT_COMMITTER_NAME=%s\n", author_name);
- printf("export GIT_COMMITTER_EMAIL=%s\n", author_email);
- printf("export GIT_COMMITTER_DATE='+0000 %s'\n", date);
-
- printf("export GIT_AUTHOR_NAME=%s\n", author_name);
- printf("export GIT_AUTHOR_EMAIL=%s\n", author_email);
- printf("export GIT_AUTHOR_DATE='+0000 %s'\n", date);
-
- if (initial_commit)
- return;
-
- src_branch = *ancestor ? ancestor : branch;
- if (!strcmp(src_branch, "HEAD"))
- src_branch = "master";
- printf("ln -sf refs/heads/'%s' .git/HEAD\n", src_branch);
-
- /*
- * Even if cvsps claims an ancestor, we'll let the new
- * branch name take precedence if it already exists
- */
- if (*ancestor) {
- src_branch = branch;
- if (!strcmp(src_branch, "HEAD"))
- src_branch = "master";
- printf("[ -e .git/refs/heads/'%s' ] && ln -sf refs/heads/'%s' .git/HEAD\n",
- src_branch, src_branch);
- }
-
- printf("git-read-tree -m HEAD || exit 1\n");
- printf("git-checkout-cache -f -u -a\n");
-}
-
-static void commit(void)
-{
- const char *cmit_parent = initial_commit ? "" : "-p HEAD";
- const char *dst_branch;
- int i;
-
- printf("tree=$(git-write-tree)\n");
- printf("cat > .cmitmsg <<EOFMSG\n");
-
- /* Escape $ characters, and remove control characters */
- for (i = 0; i < loglen; i++) {
- unsigned char c = log[i];
-
- switch (c) {
- case '$':
- case '\\':
- case '`':
- putchar('\\');
- break;
- case 0 ... 31:
- if (c == '\n' || c == '\t')
- break;
- case 128 ... 159:
- continue;
- }
- putchar(c);
- }
- printf("\nEOFMSG\n");
- printf("commit=$(cat .cmitmsg | git-commit-tree $tree %s)\n", cmit_parent);
-
- dst_branch = branch;
- if (!strcmp(dst_branch, "HEAD"))
- dst_branch = "master";
-
- printf("echo $commit > .git/refs/heads/'%s'\n", dst_branch);
-
- printf("echo 'Committed (to %s):' ; cat .cmitmsg; echo\n", dst_branch);
-
- *date = 0;
- *author = 0;
- *branch = 0;
- *ancestor = 0;
- *tag = 0;
- loglen = 0;
-
- initial_commit = 0;
-}
-
-static void update_file(char *line)
-{
- char *name, *version;
- char *dir;
-
- while (isspace(*line))
- line++;
- name = line;
- line = strchr(line, ':');
- if (!line)
- return;
- *line++ = 0;
- line = strchr(line, '>');
- if (!line)
- return;
- *line++ = 0;
- version = line;
- line = strchr(line, '(');
- if (line) { /* "(DEAD)" */
- printf("git-update-cache --force-remove '%s'\n", name);
- return;
- }
-
- dir = strrchr(name, '/');
- if (dir)
- printf("mkdir -p %.*s\n", (int)(dir - name), name);
-
- printf("cvs -q -d %s checkout -r%s -p '%s/%s' > '%s'\n", cvsroot, version, cvsmodule, name, name);
- printf("git-update-cache --add -- '%s'\n", name);
-}
-
-struct hdrentry {
- const char *name;
- char *dest;
-} hdrs[] = {
- { "Date:", date },
- { "Author:", author },
- { "Branch:", branch },
- { "Ancestor branch:", ancestor },
- { "Tag:", tag },
- { "Log:", NULL },
- { NULL, NULL }
-};
-
-int main(int argc, char **argv)
-{
- static char line[1000];
- enum state state = Header;
- int i;
-
- for (i = 1; i < argc; i++) {
- const char *arg = argv[i];
- if (!memcmp(arg, "--cvsroot=", 10)) {
- cvsroot = arg + 10;
- continue;
- }
- if (!memcmp(arg, "--module=", 9)) {
- cvsmodule = arg+9;
- continue;
- }
- if (!strcmp(arg, "-v")) {
- verbose = 1;
- continue;
- }
- }
-
-
- if (!cvsroot)
- cvsroot = getenv("CVSROOT");
-
- if (!cvsmodule || !cvsroot) {
- fprintf(stderr, "I need a CVSROOT and module name\n");
- exit(1);
- }
-
- printf("[ -d .git ] && exit 1\n");
- printf("git-init-db\n");
- printf("mkdir -p .git/refs/heads\n");
- printf("mkdir -p .git/refs/tags\n");
- printf("ln -sf refs/heads/master .git/HEAD\n");
-
- while (fgets(line, sizeof(line), stdin) != NULL) {
- int linelen = strlen(line);
-
- while (linelen && isspace(line[linelen-1]))
- line[--linelen] = 0;
-
- switch (state) {
- struct hdrentry *entry;
-
- case Header:
- if (verbose)
- printf("# H: %s\n", line);
- for (entry = hdrs ; entry->name ; entry++) {
- int len = strlen(entry->name);
- char *val;
-
- if (memcmp(entry->name, line, len))
- continue;
- if (!entry->dest) {
- state = Log;
- break;
- }
- val = line + len;
- linelen -= len;
- while (isspace(*val)) {
- val++;
- linelen--;
- }
- memcpy(entry->dest, val, linelen+1);
- break;
- }
- continue;
-
- case Log:
- if (verbose)
- printf("# L: %s\n", line);
- if (!strcmp(line, "Members:")) {
- while (loglen && isspace(log[loglen-1]))
- log[--loglen] = 0;
- prepare_commit();
- state = Members;
- continue;
- }
-
- if (loglen + linelen + 5 > sizeof(log))
- continue;
- memcpy(log + loglen, line, linelen);
- loglen += linelen;
- log[loglen++] = '\n';
- continue;
-
- case Members:
- if (verbose)
- printf("# M: %s\n", line);
- if (!linelen) {
- commit();
- state = Header;
- continue;
- }
- update_file(line);
- continue;
- }
- }
- return 0;
-}
projects / thirdparty / git.git / commitdiff
