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/*
* Builtin "git log" and related commands (show, whatchanged)
*
* (C) Copyright 2006 Linus Torvalds
* 2006 Junio Hamano
*/
#include "cache.h"
#include "commit.h"
#include "diff.h"
#include "revision.h"
#include "log-tree.h"
#include "builtin.h"
static int cmd_log_wc(int argc, const char **argv, char **envp,
struct rev_info *rev)
{
struct commit *commit;
rev->abbrev = DEFAULT_ABBREV;
rev->commit_format = CMIT_FMT_DEFAULT;
rev->verbose_header = 1;
argc = setup_revisions(argc, argv, rev, "HEAD");
if (argc > 1)
die("unrecognized argument: %s", argv[1]);
prepare_revision_walk(rev);
setup_pager();
while ((commit = get_revision(rev)) != NULL) {
log_tree_commit(rev, commit);
free(commit->buffer);
commit->buffer = NULL;
}
return 0;
}
int cmd_whatchanged(int argc, const char **argv, char **envp)
{
struct rev_info rev;
init_revisions(&rev);
rev.diff = 1;
rev.diffopt.recursive = 1;
return cmd_log_wc(argc, argv, envp, &rev);
}
int cmd_show(int argc, const char **argv, char **envp)
{
struct rev_info rev;
init_revisions(&rev);
rev.diff = 1;
rev.diffopt.recursive = 1;
rev.combine_merges = 1;
rev.dense_combined_merges = 1;
rev.always_show_header = 1;
rev.ignore_merges = 0;
rev.no_walk = 1;
return cmd_log_wc(argc, argv, envp, &rev);
}
int cmd_log(int argc, const char **argv, char **envp)
{
struct rev_info rev;
init_revisions(&rev);
rev.always_show_header = 1;
rev.diffopt.recursive = 1;
return cmd_log_wc(argc, argv, envp, &rev);
}
static int istitlechar(char c)
{
return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
(c >= '0' && c <= '9') || c == '.' || c == '_';
}
static FILE *realstdout = NULL;
static char *output_directory = NULL;
static void reopen_stdout(struct commit *commit, int nr, int keep_subject)
{
char filename[1024];
char *sol;
int len = 0;
if (output_directory) {
strncpy(filename, output_directory, 1010);
len = strlen(filename);
if (filename[len - 1] != '/')
filename[len++] = '/';
}
sprintf(filename + len, "%04d", nr);
len = strlen(filename);
sol = strstr(commit->buffer, "\n\n");
if (sol) {
int j, space = 1;
sol += 2;
/* strip [PATCH] or [PATCH blabla] */
if (!keep_subject && !strncmp(sol, "[PATCH", 6)) {
char *eos = strchr(sol + 6, ']');
if (eos) {
while (isspace(*eos))
eos++;
sol = eos;
}
}
for (j = 0; len < 1024 - 6 && sol[j] && sol[j] != '\n'; j++) {
if (istitlechar(sol[j])) {
if (space) {
filename[len++] = '-';
space = 0;
}
filename[len++] = sol[j];
if (sol[j] == '.')
while (sol[j + 1] == '.')
j++;
} else
space = 1;
}
while (filename[len - 1] == '.' || filename[len - 1] == '-')
len--;
}
strcpy(filename + len, ".txt");
fprintf(realstdout, "%s\n", filename);
freopen(filename, "w", stdout);
}
int cmd_format_patch(int argc, const char **argv, char **envp)
{
struct commit *commit;
struct commit **list = NULL;
struct rev_info rev;
int nr = 0, total, i, j;
int use_stdout = 0;
int numbered = 0;
int keep_subject = 0;
init_revisions(&rev);
rev.commit_format = CMIT_FMT_EMAIL;
rev.verbose_header = 1;
rev.diff = 1;
rev.diffopt.with_raw = 0;
rev.diffopt.with_stat = 1;
rev.combine_merges = 0;
rev.ignore_merges = 1;
rev.diffopt.output_format = DIFF_FORMAT_PATCH;
/*
* Parse the arguments before setup_revisions(), or something
* like "git fmt-patch -o a123 HEAD^.." may fail; a123 is
* possibly a valid SHA1.
*/
for (i = 1, j = 1; i < argc; i++) {
if (!strcmp(argv[i], "--stdout"))
use_stdout = 1;
else if (!strcmp(argv[i], "-n") ||
!strcmp(argv[i], "--numbered"))
numbered = 1;
else if (!strcmp(argv[i], "-k") ||
!strcmp(argv[i], "--keep-subject")) {
keep_subject = 1;
rev.total = -1;
} else if (!strcmp(argv[i], "-o")) {
if (argc < 3)
die ("Which directory?");
if (mkdir(argv[i + 1], 0777) < 0 && errno != EEXIST)
die("Could not create directory %s",
argv[i + 1]);
output_directory = strdup(argv[i + 1]);
i++;
} else
argv[j++] = argv[i];
}
argc = j;
if (numbered && keep_subject < 0)
die ("-n and -k are mutually exclusive.");
argc = setup_revisions(argc, argv, &rev, "HEAD");
if (argc > 1)
die ("unrecognized argument: %s", argv[1]);
if (!use_stdout)
realstdout = fdopen(dup(1), "w");
prepare_revision_walk(&rev);
while ((commit = get_revision(&rev)) != NULL) {
/* ignore merges */
if (commit->parents && commit->parents->next)
continue;
nr++;
list = realloc(list, nr * sizeof(list[0]));
list[nr - 1] = commit;
}
total = nr;
if (numbered)
rev.total = total;
while (0 <= --nr) {
int shown;
commit = list[nr];
rev.nr = total - nr;
if (!use_stdout)
reopen_stdout(commit, rev.nr, keep_subject);
shown = log_tree_commit(&rev, commit);
free(commit->buffer);
commit->buffer = NULL;
if (shown)
printf("-- \n%s\n\n", git_version_string);
if (!use_stdout)
fclose(stdout);
}
if (output_directory)
free(output_directory);
free(list);
return 0;
}
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