#include "builtin.h"
#include "utf8.h"
#include "strbuf.h"
-
-static FILE *cmitmsg, *patchfile, *fin, *fout;
-
-static int keep_subject;
-static int keep_non_patch_brackets_in_subject;
-static const char *metainfo_charset;
-static struct strbuf line = STRBUF_INIT;
-static struct strbuf name = STRBUF_INIT;
-static struct strbuf email = STRBUF_INIT;
-static char *message_id;
-
-static enum {
- TE_DONTCARE, TE_QP, TE_BASE64
-} transfer_encoding;
-
-static struct strbuf charset = STRBUF_INIT;
-static int patch_lines;
-static struct strbuf **p_hdr_data, **s_hdr_data;
-static int use_scissors;
-static int add_message_id;
-static int use_inbody_headers = 1;
-
-#define MAX_HDR_PARSED 10
-#define MAX_BOUNDARIES 5
-
-static void cleanup_space(struct strbuf *sb);
-
-
-static void get_sane_name(struct strbuf *out, struct strbuf *name, struct strbuf *email)
-{
- struct strbuf *src = name;
- if (name->len < 3 || 60 < name->len || strchr(name->buf, '@') ||
- strchr(name->buf, '<') || strchr(name->buf, '>'))
- src = email;
- else if (name == out)
- return;
- strbuf_reset(out);
- strbuf_addbuf(out, src);
-}
-
-static void parse_bogus_from(const struct strbuf *line)
-{
- /* John Doe <johndoe> */
-
- char *bra, *ket;
- /* This is fallback, so do not bother if we already have an
- * e-mail address.
- */
- if (email.len)
- return;
-
- bra = strchr(line->buf, '<');
- if (!bra)
- return;
- ket = strchr(bra, '>');
- if (!ket)
- return;
-
- strbuf_reset(&email);
- strbuf_add(&email, bra + 1, ket - bra - 1);
-
- strbuf_reset(&name);
- strbuf_add(&name, line->buf, bra - line->buf);
- strbuf_trim(&name);
- get_sane_name(&name, &name, &email);
-}
-
-static void handle_from(const struct strbuf *from)
-{
- char *at;
- size_t el;
- struct strbuf f;
-
- strbuf_init(&f, from->len);
- strbuf_addbuf(&f, from);
-
- at = strchr(f.buf, '@');
- if (!at) {
- parse_bogus_from(from);
- return;
- }
-
- /*
- * If we already have one email, don't take any confusing lines
- */
- if (email.len && strchr(at + 1, '@')) {
- strbuf_release(&f);
- return;
- }
-
- /* Pick up the string around '@', possibly delimited with <>
- * pair; that is the email part.
- */
- while (at > f.buf) {
- char c = at[-1];
- if (isspace(c))
- break;
- if (c == '<') {
- at[-1] = ' ';
- break;
- }
- at--;
- }
- el = strcspn(at, " \n\t\r\v\f>");
- strbuf_reset(&email);
- strbuf_add(&email, at, el);
- strbuf_remove(&f, at - f.buf, el + (at[el] ? 1 : 0));
-
- /* The remainder is name. It could be
- *
- * - "John Doe <john.doe@xz>" (a), or
- * - "john.doe@xz (John Doe)" (b), or
- * - "John (zzz) Doe <john.doe@xz> (Comment)" (c)
- *
- * but we have removed the email part, so
- *
- * - remove extra spaces which could stay after email (case 'c'), and
- * - trim from both ends, possibly removing the () pair at the end
- * (cases 'a' and 'b').
- */
- cleanup_space(&f);
- strbuf_trim(&f);
- if (f.buf[0] == '(' && f.len && f.buf[f.len - 1] == ')') {
- strbuf_remove(&f, 0, 1);
- strbuf_setlen(&f, f.len - 1);
- }
-
- get_sane_name(&name, &f, &email);
- strbuf_release(&f);
-}
-
-static void handle_header(struct strbuf **out, const struct strbuf *line)
-{
- if (!*out) {
- *out = xmalloc(sizeof(struct strbuf));
- strbuf_init(*out, line->len);
- } else
- strbuf_reset(*out);
-
- strbuf_addbuf(*out, line);
-}
-
-/* NOTE NOTE NOTE. We do not claim we do full MIME. We just attempt
- * to have enough heuristics to grok MIME encoded patches often found
- * on our mailing lists. For example, we do not even treat header lines
- * case insensitively.
- */
-
-static int slurp_attr(const char *line, const char *name, struct strbuf *attr)
-{
- const char *ends, *ap = strcasestr(line, name);
- size_t sz;
-
- strbuf_setlen(attr, 0);
- if (!ap)
- return 0;
- ap += strlen(name);
- if (*ap == '"') {
- ap++;
- ends = "\"";
- }
- else
- ends = "; \t";
- sz = strcspn(ap, ends);
- strbuf_add(attr, ap, sz);
- return 1;
-}
-
-static struct strbuf *content[MAX_BOUNDARIES];
-
-static struct strbuf **content_top = content;
-
-static void handle_content_type(struct strbuf *line)
-{
- struct strbuf *boundary = xmalloc(sizeof(struct strbuf));
- strbuf_init(boundary, line->len);
-
- if (slurp_attr(line->buf, "boundary=", boundary)) {
- strbuf_insert(boundary, 0, "--", 2);
- if (++content_top > &content[MAX_BOUNDARIES]) {
- fprintf(stderr, "Too many boundaries to handle\n");
- exit(1);
- }
- *content_top = boundary;
- boundary = NULL;
- }
- slurp_attr(line->buf, "charset=", &charset);
-
- if (boundary) {
- strbuf_release(boundary);
- free(boundary);
- }
-}
-
-static void handle_message_id(const struct strbuf *line)
-{
- if (add_message_id)
- message_id = strdup(line->buf);
-}
-
-static void handle_content_transfer_encoding(const struct strbuf *line)
-{
- if (strcasestr(line->buf, "base64"))
- transfer_encoding = TE_BASE64;
- else if (strcasestr(line->buf, "quoted-printable"))
- transfer_encoding = TE_QP;
- else
- transfer_encoding = TE_DONTCARE;
-}
-
-static int is_multipart_boundary(const struct strbuf *line)
-{
- return (((*content_top)->len <= line->len) &&
- !memcmp(line->buf, (*content_top)->buf, (*content_top)->len));
-}
-
-static void cleanup_subject(struct strbuf *subject)
-{
- size_t at = 0;
-
- while (at < subject->len) {
- char *pos;
- size_t remove;
-
- switch (subject->buf[at]) {
- case 'r': case 'R':
- if (subject->len <= at + 3)
- break;
- if ((subject->buf[at + 1] == 'e' ||
- subject->buf[at + 1] == 'E') &&
- subject->buf[at + 2] == ':') {
- strbuf_remove(subject, at, 3);
- continue;
- }
- at++;
- break;
- case ' ': case '\t': case ':':
- strbuf_remove(subject, at, 1);
- continue;
- case '[':
- pos = strchr(subject->buf + at, ']');
- if (!pos)
- break;
- remove = pos - subject->buf + at + 1;
- if (!keep_non_patch_brackets_in_subject ||
- (7 <= remove &&
- memmem(subject->buf + at, remove, "PATCH", 5)))
- strbuf_remove(subject, at, remove);
- else {
- at += remove;
- /*
- * If the input had a space after the ], keep
- * it. We don't bother with finding the end of
- * the space, since we later normalize it
- * anyway.
- */
- if (isspace(subject->buf[at]))
- at += 1;
- }
- continue;
- }
- break;
- }
- strbuf_trim(subject);
-}
-
-static void cleanup_space(struct strbuf *sb)
-{
- size_t pos, cnt;
- for (pos = 0; pos < sb->len; pos++) {
- if (isspace(sb->buf[pos])) {
- sb->buf[pos] = ' ';
- for (cnt = 0; isspace(sb->buf[pos + cnt + 1]); cnt++);
- strbuf_remove(sb, pos + 1, cnt);
- }
- }
-}
-
-static void decode_header(struct strbuf *line);
-static const char *header[MAX_HDR_PARSED] = {
- "From","Subject","Date",
-};
-
-static inline int cmp_header(const struct strbuf *line, const char *hdr)
-{
- int len = strlen(hdr);
- return !strncasecmp(line->buf, hdr, len) && line->len > len &&
- line->buf[len] == ':' && isspace(line->buf[len + 1]);
-}
-
-static int is_format_patch_separator(const char *line, int len)
-{
- static const char SAMPLE[] =
- "From e6807f3efca28b30decfecb1732a56c7db1137ee Mon Sep 17 00:00:00 2001\n";
- const char *cp;
-
- if (len != strlen(SAMPLE))
- return 0;
- if (!skip_prefix(line, "From ", &cp))
- return 0;
- if (strspn(cp, "0123456789abcdef") != 40)
- return 0;
- cp += 40;
- return !memcmp(SAMPLE + (cp - line), cp, strlen(SAMPLE) - (cp - line));
-}
-
-static int check_header(const struct strbuf *line,
- struct strbuf *hdr_data[], int overwrite)
-{
- int i, ret = 0, len;
- struct strbuf sb = STRBUF_INIT;
- /* search for the interesting parts */
- for (i = 0; header[i]; i++) {
- int len = strlen(header[i]);
- if ((!hdr_data[i] || overwrite) && cmp_header(line, header[i])) {
- /* Unwrap inline B and Q encoding, and optionally
- * normalize the meta information to utf8.
- */
- strbuf_add(&sb, line->buf + len + 2, line->len - len - 2);
- decode_header(&sb);
- handle_header(&hdr_data[i], &sb);
- ret = 1;
- goto check_header_out;
- }
- }
-
- /* Content stuff */
- if (cmp_header(line, "Content-Type")) {
- len = strlen("Content-Type: ");
- strbuf_add(&sb, line->buf + len, line->len - len);
- decode_header(&sb);
- strbuf_insert(&sb, 0, "Content-Type: ", len);
- handle_content_type(&sb);
- ret = 1;
- goto check_header_out;
- }
- if (cmp_header(line, "Content-Transfer-Encoding")) {
- len = strlen("Content-Transfer-Encoding: ");
- strbuf_add(&sb, line->buf + len, line->len - len);
- decode_header(&sb);
- handle_content_transfer_encoding(&sb);
- ret = 1;
- goto check_header_out;
- }
- if (cmp_header(line, "Message-Id")) {
- len = strlen("Message-Id: ");
- strbuf_add(&sb, line->buf + len, line->len - len);
- decode_header(&sb);
- handle_message_id(&sb);
- ret = 1;
- goto check_header_out;
- }
-
- /* for inbody stuff */
- if (starts_with(line->buf, ">From") && isspace(line->buf[5])) {
- ret = is_format_patch_separator(line->buf + 1, line->len - 1);
- goto check_header_out;
- }
- if (starts_with(line->buf, "[PATCH]") && isspace(line->buf[7])) {
- for (i = 0; header[i]; i++) {
- if (!strcmp("Subject", header[i])) {
- handle_header(&hdr_data[i], line);
- ret = 1;
- goto check_header_out;
- }
- }
- }
-
-check_header_out:
- strbuf_release(&sb);
- return ret;
-}
-
-static int is_rfc2822_header(const struct strbuf *line)
-{
- /*
- * The section that defines the loosest possible
- * field name is "3.6.8 Optional fields".
- *
- * optional-field = field-name ":" unstructured CRLF
- * field-name = 1*ftext
- * ftext = %d33-57 / %59-126
- */
- int ch;
- char *cp = line->buf;
-
- /* Count mbox From headers as headers */
- if (starts_with(cp, "From ") || starts_with(cp, ">From "))
- return 1;
-
- while ((ch = *cp++)) {
- if (ch == ':')
- return 1;
- if ((33 <= ch && ch <= 57) ||
- (59 <= ch && ch <= 126))
- continue;
- break;
- }
- return 0;
-}
-
-static int read_one_header_line(struct strbuf *line, FILE *in)
-{
- /* Get the first part of the line. */
- if (strbuf_getline(line, in, '\n'))
- return 0;
-
- /*
- * Is it an empty line or not a valid rfc2822 header?
- * If so, stop here, and return false ("not a header")
- */
- strbuf_rtrim(line);
- if (!line->len || !is_rfc2822_header(line)) {
- /* Re-add the newline */
- strbuf_addch(line, '\n');
- return 0;
- }
-
- /*
- * Now we need to eat all the continuation lines..
- * Yuck, 2822 header "folding"
- */
- for (;;) {
- int peek;
- struct strbuf continuation = STRBUF_INIT;
-
- peek = fgetc(in); ungetc(peek, in);
- if (peek != ' ' && peek != '\t')
- break;
- if (strbuf_getline(&continuation, in, '\n'))
- break;
- continuation.buf[0] = ' ';
- strbuf_rtrim(&continuation);
- strbuf_addbuf(line, &continuation);
- }
-
- return 1;
-}
-
-static struct strbuf *decode_q_segment(const struct strbuf *q_seg, int rfc2047)
-{
- const char *in = q_seg->buf;
- int c;
- struct strbuf *out = xmalloc(sizeof(struct strbuf));
- strbuf_init(out, q_seg->len);
-
- while ((c = *in++) != 0) {
- if (c == '=') {
- int d = *in++;
- if (d == '\n' || !d)
- break; /* drop trailing newline */
- strbuf_addch(out, (hexval(d) << 4) | hexval(*in++));
- continue;
- }
- if (rfc2047 && c == '_') /* rfc2047 4.2 (2) */
- c = 0x20;
- strbuf_addch(out, c);
- }
- return out;
-}
-
-static struct strbuf *decode_b_segment(const struct strbuf *b_seg)
-{
- /* Decode in..ep, possibly in-place to ot */
- int c, pos = 0, acc = 0;
- const char *in = b_seg->buf;
- struct strbuf *out = xmalloc(sizeof(struct strbuf));
- strbuf_init(out, b_seg->len);
-
- while ((c = *in++) != 0) {
- if (c == '+')
- c = 62;
- else if (c == '/')
- c = 63;
- else if ('A' <= c && c <= 'Z')
- c -= 'A';
- else if ('a' <= c && c <= 'z')
- c -= 'a' - 26;
- else if ('0' <= c && c <= '9')
- c -= '0' - 52;
- else
- continue; /* garbage */
- switch (pos++) {
- case 0:
- acc = (c << 2);
- break;
- case 1:
- strbuf_addch(out, (acc | (c >> 4)));
- acc = (c & 15) << 4;
- break;
- case 2:
- strbuf_addch(out, (acc | (c >> 2)));
- acc = (c & 3) << 6;
- break;
- case 3:
- strbuf_addch(out, (acc | c));
- acc = pos = 0;
- break;
- }
- }
- return out;
-}
-
-static void convert_to_utf8(struct strbuf *line, const char *charset)
-{
- char *out;
-
- if (!charset || !*charset)
- return;
-
- if (same_encoding(metainfo_charset, charset))
- return;
- out = reencode_string(line->buf, metainfo_charset, charset);
- if (!out)
- die("cannot convert from %s to %s",
- charset, metainfo_charset);
- strbuf_attach(line, out, strlen(out), strlen(out));
-}
-
-static void decode_header(struct strbuf *it)
-{
- char *in, *ep, *cp;
- struct strbuf outbuf = STRBUF_INIT, *dec;
- struct strbuf charset_q = STRBUF_INIT, piecebuf = STRBUF_INIT;
-
- in = it->buf;
- while (in - it->buf <= it->len && (ep = strstr(in, "=?")) != NULL) {
- int encoding;
- strbuf_reset(&charset_q);
- strbuf_reset(&piecebuf);
-
- if (in != ep) {
- /*
- * We are about to process an encoded-word
- * that begins at ep, but there is something
- * before the encoded word.
- */
- char *scan;
- for (scan = in; scan < ep; scan++)
- if (!isspace(*scan))
- break;
-
- if (scan != ep || in == it->buf) {
- /*
- * We should not lose that "something",
- * unless we have just processed an
- * encoded-word, and there is only LWS
- * before the one we are about to process.
- */
- strbuf_add(&outbuf, in, ep - in);
- }
- }
- /* E.g.
- * ep : "=?iso-2022-jp?B?GyR...?= foo"
- * ep : "=?ISO-8859-1?Q?Foo=FCbar?= baz"
- */
- ep += 2;
-
- if (ep - it->buf >= it->len || !(cp = strchr(ep, '?')))
- goto release_return;
-
- if (cp + 3 - it->buf > it->len)
- goto release_return;
- strbuf_add(&charset_q, ep, cp - ep);
-
- encoding = cp[1];
- if (!encoding || cp[2] != '?')
- goto release_return;
- ep = strstr(cp + 3, "?=");
- if (!ep)
- goto release_return;
- strbuf_add(&piecebuf, cp + 3, ep - cp - 3);
- switch (tolower(encoding)) {
- default:
- goto release_return;
- case 'b':
- dec = decode_b_segment(&piecebuf);
- break;
- case 'q':
- dec = decode_q_segment(&piecebuf, 1);
- break;
- }
- if (metainfo_charset)
- convert_to_utf8(dec, charset_q.buf);
-
- strbuf_addbuf(&outbuf, dec);
- strbuf_release(dec);
- free(dec);
- in = ep + 2;
- }
- strbuf_addstr(&outbuf, in);
- strbuf_reset(it);
- strbuf_addbuf(it, &outbuf);
-release_return:
- strbuf_release(&outbuf);
- strbuf_release(&charset_q);
- strbuf_release(&piecebuf);
-}
-
-static void decode_transfer_encoding(struct strbuf *line)
-{
- struct strbuf *ret;
-
- switch (transfer_encoding) {
- case TE_QP:
- ret = decode_q_segment(line, 0);
- break;
- case TE_BASE64:
- ret = decode_b_segment(line);
- break;
- case TE_DONTCARE:
- default:
- return;
- }
- strbuf_reset(line);
- strbuf_addbuf(line, ret);
- strbuf_release(ret);
- free(ret);
-}
-
-static void handle_filter(struct strbuf *line);
-
-static int find_boundary(void)
-{
- while (!strbuf_getline(&line, fin, '\n')) {
- if (*content_top && is_multipart_boundary(&line))
- return 1;
- }
- return 0;
-}
-
-static int handle_boundary(void)
-{
- struct strbuf newline = STRBUF_INIT;
-
- strbuf_addch(&newline, '\n');
-again:
- if (line.len >= (*content_top)->len + 2 &&
- !memcmp(line.buf + (*content_top)->len, "--", 2)) {
- /* we hit an end boundary */
- /* pop the current boundary off the stack */
- strbuf_release(*content_top);
- free(*content_top);
- *content_top = NULL;
-
- /* technically won't happen as is_multipart_boundary()
- will fail first. But just in case..
- */
- if (--content_top < content) {
- fprintf(stderr, "Detected mismatched boundaries, "
- "can't recover\n");
- exit(1);
- }
- handle_filter(&newline);
- strbuf_release(&newline);
-
- /* skip to the next boundary */
- if (!find_boundary())
- return 0;
- goto again;
- }
-
- /* set some defaults */
- transfer_encoding = TE_DONTCARE;
- strbuf_reset(&charset);
-
- /* slurp in this section's info */
- while (read_one_header_line(&line, fin))
- check_header(&line, p_hdr_data, 0);
-
- strbuf_release(&newline);
- /* replenish line */
- if (strbuf_getline(&line, fin, '\n'))
- return 0;
- strbuf_addch(&line, '\n');
- return 1;
-}
-
-static inline int patchbreak(const struct strbuf *line)
-{
- size_t i;
-
- /* Beginning of a "diff -" header? */
- if (starts_with(line->buf, "diff -"))
- return 1;
-
- /* CVS "Index: " line? */
- if (starts_with(line->buf, "Index: "))
- return 1;
-
- /*
- * "--- <filename>" starts patches without headers
- * "---<sp>*" is a manual separator
- */
- if (line->len < 4)
- return 0;
-
- if (starts_with(line->buf, "---")) {
- /* space followed by a filename? */
- if (line->buf[3] == ' ' && !isspace(line->buf[4]))
- return 1;
- /* Just whitespace? */
- for (i = 3; i < line->len; i++) {
- unsigned char c = line->buf[i];
- if (c == '\n')
- return 1;
- if (!isspace(c))
- break;
- }
- return 0;
- }
- return 0;
-}
-
-static int is_scissors_line(const struct strbuf *line)
-{
- size_t i, len = line->len;
- int scissors = 0, gap = 0;
- int first_nonblank = -1;
- int last_nonblank = 0, visible, perforation = 0, in_perforation = 0;
- const char *buf = line->buf;
-
- for (i = 0; i < len; i++) {
- if (isspace(buf[i])) {
- if (in_perforation) {
- perforation++;
- gap++;
- }
- continue;
- }
- last_nonblank = i;
- if (first_nonblank < 0)
- first_nonblank = i;
- if (buf[i] == '-') {
- in_perforation = 1;
- perforation++;
- continue;
- }
- if (i + 1 < len &&
- (!memcmp(buf + i, ">8", 2) || !memcmp(buf + i, "8<", 2) ||
- !memcmp(buf + i, ">%", 2) || !memcmp(buf + i, "%<", 2))) {
- in_perforation = 1;
- perforation += 2;
- scissors += 2;
- i++;
- continue;
- }
- in_perforation = 0;
- }
-
- /*
- * The mark must be at least 8 bytes long (e.g. "-- >8 --").
- * Even though there can be arbitrary cruft on the same line
- * (e.g. "cut here"), in order to avoid misidentification, the
- * perforation must occupy more than a third of the visible
- * width of the line, and dashes and scissors must occupy more
- * than half of the perforation.
- */
-
- visible = last_nonblank - first_nonblank + 1;
- return (scissors && 8 <= visible &&
- visible < perforation * 3 &&
- gap * 2 < perforation);
-}
-
-static int handle_commit_msg(struct strbuf *line)
-{
- static int still_looking = 1;
-
- if (!cmitmsg)
- return 0;
-
- if (still_looking) {
- if (!line->len || (line->len == 1 && line->buf[0] == '\n'))
- return 0;
- }
-
- if (use_inbody_headers && still_looking) {
- still_looking = check_header(line, s_hdr_data, 0);
- if (still_looking)
- return 0;
- } else
- /* Only trim the first (blank) line of the commit message
- * when ignoring in-body headers.
- */
- still_looking = 0;
-
- /* normalize the log message to UTF-8. */
- if (metainfo_charset)
- convert_to_utf8(line, charset.buf);
-
- if (use_scissors && is_scissors_line(line)) {
- int i;
- if (fseek(cmitmsg, 0L, SEEK_SET))
- die_errno("Could not rewind output message file");
- if (ftruncate(fileno(cmitmsg), 0))
- die_errno("Could not truncate output message file at scissors");
- still_looking = 1;
-
- /*
- * We may have already read "secondary headers"; purge
- * them to give ourselves a clean restart.
- */
- for (i = 0; header[i]; i++) {
- if (s_hdr_data[i])
- strbuf_release(s_hdr_data[i]);
- s_hdr_data[i] = NULL;
- }
- return 0;
- }
-
- if (patchbreak(line)) {
- if (message_id)
- fprintf(cmitmsg, "Message-Id: %s\n", message_id);
- fclose(cmitmsg);
- cmitmsg = NULL;
- return 1;
- }
-
- fputs(line->buf, cmitmsg);
- return 0;
-}
-
-static void handle_patch(const struct strbuf *line)
-{
- fwrite(line->buf, 1, line->len, patchfile);
- patch_lines++;
-}
-
-static void handle_filter(struct strbuf *line)
-{
- static int filter = 0;
-
- /* filter tells us which part we left off on */
- switch (filter) {
- case 0:
- if (!handle_commit_msg(line))
- break;
- filter++;
- case 1:
- handle_patch(line);
- break;
- }
-}
-
-static void handle_body(void)
-{
- struct strbuf prev = STRBUF_INIT;
-
- /* Skip up to the first boundary */
- if (*content_top) {
- if (!find_boundary())
- goto handle_body_out;
- }
-
- do {
- /* process any boundary lines */
- if (*content_top && is_multipart_boundary(&line)) {
- /* flush any leftover */
- if (prev.len) {
- handle_filter(&prev);
- strbuf_reset(&prev);
- }
- if (!handle_boundary())
- goto handle_body_out;
- }
-
- /* Unwrap transfer encoding */
- decode_transfer_encoding(&line);
-
- switch (transfer_encoding) {
- case TE_BASE64:
- case TE_QP:
- {
- struct strbuf **lines, **it, *sb;
-
- /* Prepend any previous partial lines */
- strbuf_insert(&line, 0, prev.buf, prev.len);
- strbuf_reset(&prev);
-
- /*
- * This is a decoded line that may contain
- * multiple new lines. Pass only one chunk
- * at a time to handle_filter()
- */
- lines = strbuf_split(&line, '\n');
- for (it = lines; (sb = *it); it++) {
- if (*(it + 1) == NULL) /* The last line */
- if (sb->buf[sb->len - 1] != '\n') {
- /* Partial line, save it for later. */
- strbuf_addbuf(&prev, sb);
- break;
- }
- handle_filter(sb);
- }
- /*
- * The partial chunk is saved in "prev" and will be
- * appended by the next iteration of read_line_with_nul().
- */
- strbuf_list_free(lines);
- break;
- }
- default:
- handle_filter(&line);
- }
-
- } while (!strbuf_getwholeline(&line, fin, '\n'));
-
-handle_body_out:
- strbuf_release(&prev);
-}
-
-static void output_header_lines(FILE *fout, const char *hdr, const struct strbuf *data)
-{
- const char *sp = data->buf;
- while (1) {
- char *ep = strchr(sp, '\n');
- int len;
- if (!ep)
- len = strlen(sp);
- else
- len = ep - sp;
- fprintf(fout, "%s: %.*s\n", hdr, len, sp);
- if (!ep)
- break;
- sp = ep + 1;
- }
-}
-
-static void handle_info(void)
-{
- struct strbuf *hdr;
- int i;
-
- for (i = 0; header[i]; i++) {
- /* only print inbody headers if we output a patch file */
- if (patch_lines && s_hdr_data[i])
- hdr = s_hdr_data[i];
- else if (p_hdr_data[i])
- hdr = p_hdr_data[i];
- else
- continue;
-
- if (!strcmp(header[i], "Subject")) {
- if (!keep_subject) {
- cleanup_subject(hdr);
- cleanup_space(hdr);
- }
- output_header_lines(fout, "Subject", hdr);
- } else if (!strcmp(header[i], "From")) {
- cleanup_space(hdr);
- handle_from(hdr);
- fprintf(fout, "Author: %s\n", name.buf);
- fprintf(fout, "Email: %s\n", email.buf);
- } else {
- cleanup_space(hdr);
- fprintf(fout, "%s: %s\n", header[i], hdr->buf);
- }
- }
- fprintf(fout, "\n");
-}
-
-static int mailinfo(FILE *in, FILE *out, const char *msg, const char *patch)
-{
- int peek;
- fin = in;
- fout = out;
-
- cmitmsg = fopen(msg, "w");
- if (!cmitmsg) {
- perror(msg);
- return -1;
- }
- patchfile = fopen(patch, "w");
- if (!patchfile) {
- perror(patch);
- fclose(cmitmsg);
- return -1;
- }
-
- p_hdr_data = xcalloc(MAX_HDR_PARSED, sizeof(*p_hdr_data));
- s_hdr_data = xcalloc(MAX_HDR_PARSED, sizeof(*s_hdr_data));
-
- do {
- peek = fgetc(in);
- } while (isspace(peek));
- ungetc(peek, in);
-
- /* process the email header */
- while (read_one_header_line(&line, fin))
- check_header(&line, p_hdr_data, 1);
-
- handle_body();
- handle_info();
-
- return 0;
-}
-
-static int git_mailinfo_config(const char *var, const char *value, void *unused)
-{
- if (!starts_with(var, "mailinfo."))
- return git_default_config(var, value, unused);
- if (!strcmp(var, "mailinfo.scissors")) {
- use_scissors = git_config_bool(var, value);
- return 0;
- }
- /* perhaps others here */
- return 0;
-}
+#include "mailinfo.h"
static const char mailinfo_usage[] =
"git mailinfo [-k | -b] [-m | --message-id] [-u | --encoding=<encoding> | -n] [--scissors | --no-scissors] <msg> <patch> < mail >info";
int cmd_mailinfo(int argc, const char **argv, const char *prefix)
{
const char *def_charset;
+ struct mailinfo mi;
+ int status;
/* NEEDSWORK: might want to do the optional .git/ directory
* discovery
*/
- git_config(git_mailinfo_config, NULL);
+ setup_mailinfo(&mi);
def_charset = get_commit_output_encoding();
- metainfo_charset = def_charset;
+ mi.metainfo_charset = def_charset;
while (1 < argc && argv[1][0] == '-') {
if (!strcmp(argv[1], "-k"))
- keep_subject = 1;
+ mi.keep_subject = 1;
else if (!strcmp(argv[1], "-b"))
- keep_non_patch_brackets_in_subject = 1;
+ mi.keep_non_patch_brackets_in_subject = 1;
else if (!strcmp(argv[1], "-m") || !strcmp(argv[1], "--message-id"))
- add_message_id = 1;
+ mi.add_message_id = 1;
else if (!strcmp(argv[1], "-u"))
- metainfo_charset = def_charset;
+ mi.metainfo_charset = def_charset;
else if (!strcmp(argv[1], "-n"))
- metainfo_charset = NULL;
+ mi.metainfo_charset = NULL;
else if (starts_with(argv[1], "--encoding="))
- metainfo_charset = argv[1] + 11;
+ mi.metainfo_charset = argv[1] + 11;
else if (!strcmp(argv[1], "--scissors"))
- use_scissors = 1;
+ mi.use_scissors = 1;
else if (!strcmp(argv[1], "--no-scissors"))
- use_scissors = 0;
+ mi.use_scissors = 0;
else if (!strcmp(argv[1], "--no-inbody-headers"))
- use_inbody_headers = 0;
+ mi.use_inbody_headers = 0;
else
usage(mailinfo_usage);
argc--; argv++;
if (argc != 3)
usage(mailinfo_usage);
- return !!mailinfo(stdin, stdout, argv[1], argv[2]);
+ mi.input = stdin;
+ mi.output = stdout;
+ status = !!mailinfo(&mi, argv[1], argv[2]);
+ clear_mailinfo(&mi);
+
+ return status;
}