#include "diff.h"
#include "revision.h"
#include "log-tree.h"
+#include "builtin.h"
+
+/* this is in builtin-diff.c */
+void add_head(struct rev_info *revs);
static int cmd_log_wc(int argc, const char **argv, char **envp,
struct rev_info *rev)
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 (rev.pending_objects && rev.pending_objects->next == NULL) {
+ rev.pending_objects->item->flags |= UNINTERESTING;
+ add_head(&rev);
+ }
+
+ 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;
+}
+