From cd2ef591c8e753fe5295ac3c6f1dee481f00a185 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Sun, 22 Mar 2009 19:14:03 -0700 Subject: [PATCH] format-patch: pass a commit to reopen_stdout() We use the commit to generate the patch filename in reopen_stdout() before we redirect stdout. The cover letter codepath creates a dummy commit with the desired subject line 'cover letter'. Signed-off-by: Stephen Boyd Signed-off-by: Junio C Hamano --- builtin-log.c | 67 ++++++++++++++++++++++++++++++--------------------- 1 file changed, 39 insertions(+), 28 deletions(-) diff --git a/builtin-log.c b/builtin-log.c index 193de3ff2..6a27ce695 100644 --- a/builtin-log.c +++ b/builtin-log.c @@ -539,30 +539,29 @@ static FILE *realstdout = NULL; static const char *output_directory = NULL; static int outdir_offset; -static int reopen_stdout(const char *oneline, struct rev_info *rev) +static int reopen_stdout(struct commit *commit, struct rev_info *rev) { - char filename[PATH_MAX]; - int len = 0; + struct strbuf filename = STRBUF_INIT; int suffix_len = strlen(fmt_patch_suffix) + 1; if (output_directory) { - len = snprintf(filename, sizeof(filename), "%s", - output_directory); - if (len >= - sizeof(filename) - FORMAT_PATCH_NAME_MAX - suffix_len) + strbuf_addstr(&filename, output_directory); + if (filename.len >= + PATH_MAX - FORMAT_PATCH_NAME_MAX - suffix_len) return error("name of output directory is too long"); - if (filename[len - 1] != '/') - filename[len++] = '/'; + if (filename.buf[filename.len - 1] != '/') + strbuf_addch(&filename, '/'); } - strncpy(filename + len, oneline, PATH_MAX - len); + get_patch_filename(commit, rev->nr, fmt_patch_suffix, &filename); if (!DIFF_OPT_TST(&rev->diffopt, QUIET)) - fprintf(realstdout, "%s\n", filename + outdir_offset); + fprintf(realstdout, "%s\n", filename.buf + outdir_offset); - if (freopen(filename, "w", stdout) == NULL) - return error("Cannot open patch file %s",filename); + if (freopen(filename.buf, "w", stdout) == NULL) + return error("Cannot open patch file %s", filename.buf); + strbuf_release(&filename); return 0; } @@ -643,26 +642,42 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout, const char *encoding = "utf-8"; struct diff_options opts; int need_8bit_cte = 0; - char filename[PATH_MAX]; + struct commit *commit = NULL; if (rev->commit_format != CMIT_FMT_EMAIL) die("Cover letter needs email format"); - if (numbered_files) - sprintf(filename, "0"); - else - sprintf(filename, "%04d-cover-letter%s", 0, fmt_patch_suffix); + committer = git_committer_info(0); + head_sha1 = sha1_to_hex(head->object.sha1); - if (!use_stdout && reopen_stdout(filename, rev)) + if (!numbered_files) { + /* + * We fake a commit for the cover letter so we get the filename + * desired. + */ + commit = xcalloc(1, sizeof(*commit)); + commit->buffer = xmalloc(400); + snprintf(commit->buffer, 400, + "tree 0000000000000000000000000000000000000000\n" + "parent %s\n" + "author %s\n" + "committer %s\n\n" + "cover letter\n", + head_sha1, committer, committer); + } + + if (!use_stdout && reopen_stdout(commit, rev)) return; - head_sha1 = sha1_to_hex(head->object.sha1); + if (commit) { + + free(commit->buffer); + free(commit); + } log_write_email_headers(rev, head_sha1, &subject_start, &extra_headers, &need_8bit_cte); - committer = git_committer_info(0); - msg = body; pp_user_info(NULL, CMIT_FMT_EMAIL, &sb, committer, DATE_RFC2822, encoding); @@ -766,7 +781,6 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) struct patch_ids ids; char *add_signoff = NULL; struct strbuf buf = STRBUF_INIT; - struct strbuf patch_filename = STRBUF_INIT; git_config(git_format_config, NULL); init_revisions(&rev, prefix); @@ -1070,11 +1084,9 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) gen_message_id(&rev, sha1_to_hex(commit->object.sha1)); } - get_patch_filename(numbered_files ? NULL : commit, rev.nr, - fmt_patch_suffix, &patch_filename); - if (!use_stdout && reopen_stdout(patch_filename.buf, &rev)) + if (!use_stdout && reopen_stdout(numbered_files ? NULL : commit, + &rev)) die("Failed to create output files"); - strbuf_setlen(&patch_filename, 0); shown = log_tree_commit(&rev, commit); free(commit->buffer); commit->buffer = NULL; @@ -1098,7 +1110,6 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) if (!use_stdout) fclose(stdout); } - strbuf_release(&patch_filename); free(list); if (ignore_if_in_upstream) free_patch_ids(&ids); -- 2.26.2