e1b10391ea
This starts using the "user.name" and "user.email" config variables if they exist as the default name and email when committing. This means that you don't have to use the GIT_COMMITTER_EMAIL environment variable to override your email - you can just edit the config file instead. The patch looks bigger than it is because it makes the default name and email information non-static and renames it appropriately. And it moves the common git environment variables into a new library file, so that you can link against libgit.a and get the git environment without having to link in zlib and libcrypt. In short, most of it is renaming and moving, the real change core is just a few new lines in "git_default_config()" that copies the user config values to the new base. It also changes "git-var -l" to list the config variables. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
134 lines
3.1 KiB
C
134 lines
3.1 KiB
C
/*
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* GIT - The information manager from hell
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*
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* Copyright (C) Linus Torvalds, 2005
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*/
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#include "cache.h"
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#include <pwd.h>
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#include <time.h>
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#include <ctype.h>
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#define BLOCKING (1ul << 14)
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/*
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* FIXME! Share the code with "write-tree.c"
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*/
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static void init_buffer(char **bufp, unsigned int *sizep)
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{
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char *buf = xmalloc(BLOCKING);
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*sizep = 0;
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*bufp = buf;
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}
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static void add_buffer(char **bufp, unsigned int *sizep, const char *fmt, ...)
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{
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char one_line[2048];
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va_list args;
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int len;
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unsigned long alloc, size, newsize;
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char *buf;
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va_start(args, fmt);
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len = vsnprintf(one_line, sizeof(one_line), fmt, args);
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va_end(args);
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size = *sizep;
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newsize = size + len;
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alloc = (size + 32767) & ~32767;
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buf = *bufp;
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if (newsize > alloc) {
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alloc = (newsize + 32767) & ~32767;
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buf = xrealloc(buf, alloc);
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*bufp = buf;
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}
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*sizep = newsize;
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memcpy(buf + size, one_line, len);
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}
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static void check_valid(unsigned char *sha1, const char *expect)
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{
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void *buf;
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char type[20];
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unsigned long size;
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buf = read_sha1_file(sha1, type, &size);
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if (!buf || strcmp(type, expect))
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die("%s is not a valid '%s' object", sha1_to_hex(sha1), expect);
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free(buf);
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}
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/*
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* Having more than two parents is not strange at all, and this is
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* how multi-way merges are represented.
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*/
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#define MAXPARENT (16)
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static unsigned char parent_sha1[MAXPARENT][20];
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static const char commit_tree_usage[] = "git-commit-tree <sha1> [-p <sha1>]* < changelog";
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static int new_parent(int idx)
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{
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int i;
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unsigned char *sha1 = parent_sha1[idx];
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for (i = 0; i < idx; i++) {
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if (!memcmp(parent_sha1[i], sha1, 20)) {
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error("duplicate parent %s ignored", sha1_to_hex(sha1));
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return 0;
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}
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}
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return 1;
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}
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int main(int argc, char **argv)
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{
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int i;
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int parents = 0;
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unsigned char tree_sha1[20];
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unsigned char commit_sha1[20];
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char comment[1000];
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char *buffer;
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unsigned int size;
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setup_ident();
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git_config(git_default_config);
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if (argc < 2 || get_sha1_hex(argv[1], tree_sha1) < 0)
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usage(commit_tree_usage);
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check_valid(tree_sha1, "tree");
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for (i = 2; i < argc; i += 2) {
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char *a, *b;
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a = argv[i]; b = argv[i+1];
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if (!b || strcmp(a, "-p") || get_sha1(b, parent_sha1[parents]))
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usage(commit_tree_usage);
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check_valid(parent_sha1[parents], "commit");
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if (new_parent(parents))
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parents++;
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}
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if (!parents)
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fprintf(stderr, "Committing initial tree %s\n", argv[1]);
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init_buffer(&buffer, &size);
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add_buffer(&buffer, &size, "tree %s\n", sha1_to_hex(tree_sha1));
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/*
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* NOTE! This ordering means that the same exact tree merged with a
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* different order of parents will be a _different_ changeset even
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* if everything else stays the same.
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*/
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for (i = 0; i < parents; i++)
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add_buffer(&buffer, &size, "parent %s\n", sha1_to_hex(parent_sha1[i]));
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/* Person/date information */
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add_buffer(&buffer, &size, "author %s\n", git_author_info());
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add_buffer(&buffer, &size, "committer %s\n\n", git_committer_info());
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/* And add the comment */
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while (fgets(comment, sizeof(comment), stdin) != NULL)
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add_buffer(&buffer, &size, "%s", comment);
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write_sha1_file(buffer, size, "commit", commit_sha1);
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printf("%s\n", sha1_to_hex(commit_sha1));
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return 0;
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}
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