The file commit.c got quite large, but it does not have to be: the
code concerning pretty printing is pretty well contained. In fact,
this commit just splits it off into pretty.c, leaving commit.c with
just 672 lines.
Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
I know, I suggested using "format-patch -C -C" for this case, but
the response was correct in that it seems funny.
AFAICT this is a verbatim move of two hunks from commit.c to
pretty.c, and the usual #include mantra in front of the latter to
make it compile.
Makefile | 2 +-
commit.c | 718 -------------------------------------------------------------
pretty.c | 723 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 724 insertions(+), 719 deletions(-)
create mode 100644 pretty.c
diff --git a/Makefile b/Makefile
index 19a48f5..4c5f864 100644
--- a/Makefile
+++ b/Makefile
@@ -299,7 +299,7 @@ DIFF_OBJS = \
LIB_OBJS = \
blob.o commit.o connect.o csum-file.o cache-tree.o base85.o \
date.o diff-delta.o entry.o exec_cmd.o ident.o \
- interpolate.o hash.o \
+ pretty.o interpolate.o hash.o \
lockfile.o \
patch-ids.o \
object.o pack-check.o pack-write.o patch-delta.o path.o pkt-line.o \
diff --git a/commit.c b/commit.c
index ab4eb8b..f074811 100644
--- a/commit.c
+++ b/commit.c
@@ -3,7 +3,6 @@
#include "commit.h"
#include "pkt-line.h"
#include "utf8.h"
-#include "interpolate.h"
#include "diff.h"
#include "revision.h"
@@ -11,46 +10,6 @@ int save_commit_buffer = 1;
const char *commit_type = "commit";
-static struct cmt_fmt_map {
- const char *n;
- size_t cmp_len;
- enum cmit_fmt v;
-} cmt_fmts[] = {
- { "raw", 1, CMIT_FMT_RAW },
- { "medium", 1, CMIT_FMT_MEDIUM },
- { "short", 1, CMIT_FMT_SHORT },
- { "email", 1, CMIT_FMT_EMAIL },
- { "full", 5, CMIT_FMT_FULL },
- { "fuller", 5, CMIT_FMT_FULLER },
- { "oneline", 1, CMIT_FMT_ONELINE },
- { "format:", 7, CMIT_FMT_USERFORMAT},
-};
-
-static char *user_format;
-
-enum cmit_fmt get_commit_format(const char *arg)
-{
- int i;
-
- if (!arg || !*arg)
- return CMIT_FMT_DEFAULT;
- if (*arg == '=')
- arg++;
- if (!prefixcmp(arg, "format:")) {
- if (user_format)
- free(user_format);
- user_format = xstrdup(arg + 7);
- return CMIT_FMT_USERFORMAT;
- }
- for (i = 0; i < ARRAY_SIZE(cmt_fmts); i++) {
- if (!strncmp(arg, cmt_fmts[i].n, cmt_fmts[i].cmp_len) &&
- !strncmp(arg, cmt_fmts[i].n, strlen(arg)))
- return cmt_fmts[i].v;
- }
-
- die("invalid --pretty format: %s", arg);
-}
-
static struct commit *check_commit(struct object *obj,
const unsigned char *sha1,
int quiet)
@@ -444,683 +403,6 @@ void clear_commit_marks(struct commit *commit, unsigned int mark)
}
}
-/*
- * Generic support for pretty-printing the header
- */
-static int get_one_line(const char *msg)
-{
- int ret = 0;
-
- for (;;) {
- char c = *msg++;
- if (!c)
- break;
- ret++;
- if (c == '\n')
- break;
- }
- return ret;
-}
-
-/* High bit set, or ISO-2022-INT */
-int non_ascii(int ch)
-{
- ch = (ch & 0xff);
- return ((ch & 0x80) || (ch == 0x1b));
-}
-
-static int is_rfc2047_special(char ch)
-{
- return (non_ascii(ch) || (ch == '=') || (ch == '?') || (ch == '_'));
-}
-
-static void add_rfc2047(struct strbuf *sb, const char *line, int len,
- const char *encoding)
-{
- int i, last;
-
- for (i = 0; i < len; i++) {
- int ch = line[i];
- if (non_ascii(ch))
- goto needquote;
- if ((i + 1 < len) && (ch == '=' && line[i+1] == '?'))
- goto needquote;
- }
- strbuf_add(sb, line, len);
- return;
-
-needquote:
- strbuf_grow(sb, len * 3 + strlen(encoding) + 100);
- strbuf_addf(sb, "=?%s?q?", encoding);
- for (i = last = 0; i < len; i++) {
- unsigned ch = line[i] & 0xFF;
- /*
- * We encode ' ' using '=20' even though rfc2047
- * allows using '_' for readability. Unfortunately,
- * many programs do not understand this and just
- * leave the underscore in place.
- */
- if (is_rfc2047_special(ch) || ch == ' ') {
- strbuf_add(sb, line + last, i - last);
- strbuf_addf(sb, "=%02X", ch);
- last = i + 1;
- }
- }
- strbuf_add(sb, line + last, len - last);
- strbuf_addstr(sb, "?=");
-}
-
-static void add_user_info(const char *what, enum cmit_fmt fmt, struct strbuf *sb,
- const char *line, enum date_mode dmode,
- const char *encoding)
-{
- char *date;
- int namelen;
- unsigned long time;
- int tz;
- const char *filler = " ";
-
- if (fmt == CMIT_FMT_ONELINE)
- return;
- date = strchr(line, '>');
- if (!date)
- return;
- namelen = ++date - line;
- time = strtoul(date, &date, 10);
- tz = strtol(date, NULL, 10);
-
- if (fmt == CMIT_FMT_EMAIL) {
- char *name_tail = strchr(line, '<');
- int display_name_length;
- if (!name_tail)
- return;
- while (line < name_tail && isspace(name_tail[-1]))
- name_tail--;
- display_name_length = name_tail - line;
- filler = "";
- strbuf_addstr(sb, "From: ");
- add_rfc2047(sb, line, display_name_length, encoding);
- strbuf_add(sb, name_tail, namelen - display_name_length);
- strbuf_addch(sb, '\n');
- } else {
- strbuf_addf(sb, "%s: %.*s%.*s\n", what,
- (fmt == CMIT_FMT_FULLER) ? 4 : 0,
- filler, namelen, line);
- }
- switch (fmt) {
- case CMIT_FMT_MEDIUM:
- strbuf_addf(sb, "Date: %s\n", show_date(time, tz, dmode));
- break;
- case CMIT_FMT_EMAIL:
- strbuf_addf(sb, "Date: %s\n", show_date(time, tz, DATE_RFC2822));
- break;
- case CMIT_FMT_FULLER:
- strbuf_addf(sb, "%sDate: %s\n", what, show_date(time, tz, dmode));
- break;
- default:
- /* notin' */
- break;
- }
-}
-
-static int is_empty_line(const char *line, int *len_p)
-{
- int len = *len_p;
- while (len && isspace(line[len-1]))
- len--;
- *len_p = len;
- return !len;
-}
-
-static void add_merge_info(enum cmit_fmt fmt, struct strbuf *sb,
- const struct commit *commit, int abbrev)
-{
- struct commit_list *parent = commit->parents;
-
- if ((fmt == CMIT_FMT_ONELINE) || (fmt == CMIT_FMT_EMAIL) ||
- !parent || !parent->next)
- return;
-
- strbuf_addstr(sb, "Merge:");
-
- while (parent) {
- struct commit *p = parent->item;
- const char *hex = NULL;
- const char *dots;
- if (abbrev)
- hex = find_unique_abbrev(p->object.sha1, abbrev);
- if (!hex)
- hex = sha1_to_hex(p->object.sha1);
- dots = (abbrev && strlen(hex) != 40) ? "..." : "";
- parent = parent->next;
-
- strbuf_addf(sb, " %s%s", hex, dots);
- }
- strbuf_addch(sb, '\n');
-}
-
-static char *get_header(const struct commit *commit, const char *key)
-{
- int key_len = strlen(key);
- const char *line = commit->buffer;
-
- for (;;) {
- const char *eol = strchr(line, '\n'), *next;
-
- if (line == eol)
- return NULL;
- if (!eol) {
- eol = line + strlen(line);
- next = NULL;
- } else
- next = eol + 1;
- if (eol - line > key_len &&
- !strncmp(line, key, key_len) &&
- line[key_len] == ' ') {
- return xmemdupz(line + key_len + 1, eol - line - key_len - 1);
- }
- line = next;
- }
-}
-
-static char *replace_encoding_header(char *buf, const char *encoding)
-{
- struct strbuf tmp;
- size_t start, len;
- char *cp = buf;
-
- /* guess if there is an encoding header before a \n\n */
- while (strncmp(cp, "encoding ", strlen("encoding "))) {
- cp = strchr(cp, '\n');
- if (!cp || *++cp == '\n')
- return buf;
- }
- start = cp - buf;
- cp = strchr(cp, '\n');
- if (!cp)
- return buf; /* should not happen but be defensive */
- len = cp + 1 - (buf + start);
-
- strbuf_init(&tmp, 0);
- strbuf_attach(&tmp, buf, strlen(buf), strlen(buf) + 1);
- if (is_encoding_utf8(encoding)) {
- /* we have re-coded to UTF-8; drop the header */
- strbuf_remove(&tmp, start, len);
- } else {
- /* just replaces XXXX in 'encoding XXXX\n' */
- strbuf_splice(&tmp, start + strlen("encoding "),
- len - strlen("encoding \n"),
- encoding, strlen(encoding));
- }
- return strbuf_detach(&tmp, NULL);
-}
-
-static char *logmsg_reencode(const struct commit *commit,
- const char *output_encoding)
-{
- static const char *utf8 = "utf-8";
- const char *use_encoding;
- char *encoding;
- char *out;
-
- if (!*output_encoding)
- return NULL;
- encoding = get_header(commit, "encoding");
- use_encoding = encoding ? encoding : utf8;
- if (!strcmp(use_encoding, output_encoding))
- if (encoding) /* we'll strip encoding header later */
- out = xstrdup(commit->buffer);
- else
- return NULL; /* nothing to do */
- else
- out = reencode_string(commit->buffer,
- output_encoding, use_encoding);
- if (out)
- out = replace_encoding_header(out, output_encoding);
-
- free(encoding);
- return out;
-}
-
-static void fill_person(struct interp *table, const char *msg, int len)
-{
- int start, end, tz = 0;
- unsigned long date;
- char *ep;
-
- /* parse name */
- for (end = 0; end < len && msg[end] != '<'; end++)
- ; /* do nothing */
- start = end + 1;
- while (end > 0 && isspace(msg[end - 1]))
- end--;
- table[0].value = xmemdupz(msg, end);
-
- if (start >= len)
- return;
-
- /* parse email */
- for (end = start + 1; end < len && msg[end] != '>'; end++)
- ; /* do nothing */
-
- if (end >= len)
- return;
-
- table[1].value = xmemdupz(msg + start, end - start);
-
- /* parse date */
- for (start = end + 1; start < len && isspace(msg[start]); start++)
- ; /* do nothing */
- if (start >= len)
- return;
- date = strtoul(msg + start, &ep, 10);
- if (msg + start == ep)
- return;
-
- table[5].value = xmemdupz(msg + start, ep - (msg + start));
-
- /* parse tz */
- for (start = ep - msg + 1; start < len && isspace(msg[start]); start++)
- ; /* do nothing */
- if (start + 1 < len) {
- tz = strtoul(msg + start + 1, NULL, 10);
- if (msg[start] == '-')
- tz = -tz;
- }
-
- interp_set_entry(table, 2, show_date(date, tz, DATE_NORMAL));
- interp_set_entry(table, 3, show_date(date, tz, DATE_RFC2822));
- interp_set_entry(table, 4, show_date(date, tz, DATE_RELATIVE));
- interp_set_entry(table, 6, show_date(date, tz, DATE_ISO8601));
-}
-
-void format_commit_message(const struct commit *commit,
- const void *format, struct strbuf *sb)
-{
- struct interp table[] = {
- { "%H" }, /* commit hash */
- { "%h" }, /* abbreviated commit hash */
- { "%T" }, /* tree hash */
- { "%t" }, /* abbreviated tree hash */
- { "%P" }, /* parent hashes */
- { "%p" }, /* abbreviated parent hashes */
- { "%an" }, /* author name */
- { "%ae" }, /* author email */
- { "%ad" }, /* author date */
- { "%aD" }, /* author date, RFC2822 style */
- { "%ar" }, /* author date, relative */
- { "%at" }, /* author date, UNIX timestamp */
- { "%ai" }, /* author date, ISO 8601 */
- { "%cn" }, /* committer name */
- { "%ce" }, /* committer email */
- { "%cd" }, /* committer date */
- { "%cD" }, /* committer date, RFC2822 style */
- { "%cr" }, /* committer date, relative */
- { "%ct" }, /* committer date, UNIX timestamp */
- { "%ci" }, /* committer date, ISO 8601 */
- { "%e" }, /* encoding */
- { "%s" }, /* subject */
- { "%b" }, /* body */
- { "%Cred" }, /* red */
- { "%Cgreen" }, /* green */
- { "%Cblue" }, /* blue */
- { "%Creset" }, /* reset color */
- { "%n" }, /* newline */
- { "%m" }, /* left/right/bottom */
- };
- enum interp_index {
- IHASH = 0, IHASH_ABBREV,
- ITREE, ITREE_ABBREV,
- IPARENTS, IPARENTS_ABBREV,
- IAUTHOR_NAME, IAUTHOR_EMAIL,
- IAUTHOR_DATE, IAUTHOR_DATE_RFC2822, IAUTHOR_DATE_RELATIVE,
- IAUTHOR_TIMESTAMP, IAUTHOR_ISO8601,
- ICOMMITTER_NAME, ICOMMITTER_EMAIL,
- ICOMMITTER_DATE, ICOMMITTER_DATE_RFC2822,
- ICOMMITTER_DATE_RELATIVE, ICOMMITTER_TIMESTAMP,
- ICOMMITTER_ISO8601,
- IENCODING,
- ISUBJECT,
- IBODY,
- IRED, IGREEN, IBLUE, IRESET_COLOR,
- INEWLINE,
- ILEFT_RIGHT,
- };
- struct commit_list *p;
- char parents[1024];
- unsigned long len;
- int i;
- enum { HEADER, SUBJECT, BODY } state;
- const char *msg = commit->buffer;
-
- if (ILEFT_RIGHT + 1 != ARRAY_SIZE(table))
- die("invalid interp table!");
-
- /* these are independent of the commit */
- interp_set_entry(table, IRED, "\033[31m");
- interp_set_entry(table, IGREEN, "\033[32m");
- interp_set_entry(table, IBLUE, "\033[34m");
- interp_set_entry(table, IRESET_COLOR, "\033[m");
- interp_set_entry(table, INEWLINE, "\n");
-
- /* these depend on the commit */
- if (!commit->object.parsed)
- parse_object(commit->object.sha1);
- interp_set_entry(table, IHASH, sha1_to_hex(commit->object.sha1));
- interp_set_entry(table, IHASH_ABBREV,
- find_unique_abbrev(commit->object.sha1,
- DEFAULT_ABBREV));
- interp_set_entry(table, ITREE, sha1_to_hex(commit->tree->object.sha1));
- interp_set_entry(table, ITREE_ABBREV,
- find_unique_abbrev(commit->tree->object.sha1,
- DEFAULT_ABBREV));
- interp_set_entry(table, ILEFT_RIGHT,
- (commit->object.flags & BOUNDARY)
- ? "-"
- : (commit->object.flags & SYMMETRIC_LEFT)
- ? "<"
- : ">");
-
- parents[1] = 0;
- for (i = 0, p = commit->parents;
- p && i < sizeof(parents) - 1;
- p = p->next)
- i += snprintf(parents + i, sizeof(parents) - i - 1, " %s",
- sha1_to_hex(p->item->object.sha1));
- interp_set_entry(table, IPARENTS, parents + 1);
-
- parents[1] = 0;
- for (i = 0, p = commit->parents;
- p && i < sizeof(parents) - 1;
- p = p->next)
- i += snprintf(parents + i, sizeof(parents) - i - 1, " %s",
- find_unique_abbrev(p->item->object.sha1,
- DEFAULT_ABBREV));
- interp_set_entry(table, IPARENTS_ABBREV, parents + 1);
-
- for (i = 0, state = HEADER; msg[i] && state < BODY; i++) {
- int eol;
- for (eol = i; msg[eol] && msg[eol] != '\n'; eol++)
- ; /* do nothing */
-
- if (state == SUBJECT) {
- table[ISUBJECT].value = xmemdupz(msg + i, eol - i);
- i = eol;
- }
- if (i == eol) {
- state++;
- /* strip empty lines */
- while (msg[eol + 1] == '\n')
- eol++;
- } else if (!prefixcmp(msg + i, "author "))
- fill_person(table + IAUTHOR_NAME,
- msg + i + 7, eol - i - 7);
- else if (!prefixcmp(msg + i, "committer "))
- fill_person(table + ICOMMITTER_NAME,
- msg + i + 10, eol - i - 10);
- else if (!prefixcmp(msg + i, "encoding "))
- table[IENCODING].value =
- xmemdupz(msg + i + 9, eol - i - 9);
- i = eol;
- }
- if (msg[i])
- table[IBODY].value = xstrdup(msg + i);
-
- len = interpolate(sb->buf + sb->len, strbuf_avail(sb),
- format, table, ARRAY_SIZE(table));
- if (len > strbuf_avail(sb)) {
- strbuf_grow(sb, len);
- interpolate(sb->buf + sb->len, strbuf_avail(sb) + 1,
- format, table, ARRAY_SIZE(table));
- }
- strbuf_setlen(sb, sb->len + len);
- interp_clear_table(table, ARRAY_SIZE(table));
-}
-
-static void pp_header(enum cmit_fmt fmt,
- int abbrev,
- enum date_mode dmode,
- const char *encoding,
- const struct commit *commit,
- const char **msg_p,
- struct strbuf *sb)
-{
- int parents_shown = 0;
-
- for (;;) {
- const char *line = *msg_p;
- int linelen = get_one_line(*msg_p);
-
- if (!linelen)
- return;
- *msg_p += linelen;
-
- if (linelen == 1)
- /* End of header */
- return;
-
- if (fmt == CMIT_FMT_RAW) {
- strbuf_add(sb, line, linelen);
- continue;
- }
-
- if (!memcmp(line, "parent ", 7)) {
- if (linelen != 48)
- die("bad parent line in commit");
- continue;
- }
-
- if (!parents_shown) {
- struct commit_list *parent;
- int num;
- for (parent = commit->parents, num = 0;
- parent;
- parent = parent->next, num++)
- ;
- /* with enough slop */
- strbuf_grow(sb, num * 50 + 20);
- add_merge_info(fmt, sb, commit, abbrev);
- parents_shown = 1;
- }
-
- /*
- * MEDIUM == DEFAULT shows only author with dates.
- * FULL shows both authors but not dates.
- * FULLER shows both authors and dates.
- */
- if (!memcmp(line, "author ", 7)) {
- strbuf_grow(sb, linelen + 80);
- add_user_info("Author", fmt, sb, line + 7, dmode, encoding);
- }
- if (!memcmp(line, "committer ", 10) &&
- (fmt == CMIT_FMT_FULL || fmt == CMIT_FMT_FULLER)) {
- strbuf_grow(sb, linelen + 80);
- add_user_info("Commit", fmt, sb, line + 10, dmode, encoding);
- }
- }
-}
-
-static void pp_title_line(enum cmit_fmt fmt,
- const char **msg_p,
- struct strbuf *sb,
- const char *subject,
- const char *after_subject,
- const char *encoding,
- int plain_non_ascii)
-{
- struct strbuf title;
-
- strbuf_init(&title, 80);
-
- for (;;) {
- const char *line = *msg_p;
- int linelen = get_one_line(line);
-
- *msg_p += linelen;
- if (!linelen || is_empty_line(line, &linelen))
- break;
-
- strbuf_grow(&title, linelen + 2);
- if (title.len) {
- if (fmt == CMIT_FMT_EMAIL) {
- strbuf_addch(&title, '\n');
- }
- strbuf_addch(&title, ' ');
- }
- strbuf_add(&title, line, linelen);
- }
-
- strbuf_grow(sb, title.len + 1024);
- if (subject) {
- strbuf_addstr(sb, subject);
- add_rfc2047(sb, title.buf, title.len, encoding);
- } else {
- strbuf_addbuf(sb, &title);
- }
- strbuf_addch(sb, '\n');
-
- if (plain_non_ascii) {
- const char *header_fmt =
- "MIME-Version: 1.0\n"
- "Content-Type: text/plain; charset=%s\n"
- "Content-Transfer-Encoding: 8bit\n";
- strbuf_addf(sb, header_fmt, encoding);
- }
- if (after_subject) {
- strbuf_addstr(sb, after_subject);
- }
- if (fmt == CMIT_FMT_EMAIL) {
- strbuf_addch(sb, '\n');
- }
- strbuf_release(&title);
-}
-
-static void pp_remainder(enum cmit_fmt fmt,
- const char **msg_p,
- struct strbuf *sb,
- int indent)
-{
- int first = 1;
- for (;;) {
- const char *line = *msg_p;
- int linelen = get_one_line(line);
- *msg_p += linelen;
-
- if (!linelen)
- break;
-
- if (is_empty_line(line, &linelen)) {
- if (first)
- continue;
- if (fmt == CMIT_FMT_SHORT)
- break;
- }
- first = 0;
-
- strbuf_grow(sb, linelen + indent + 20);
- if (indent) {
- memset(sb->buf + sb->len, ' ', indent);
- strbuf_setlen(sb, sb->len + indent);
- }
- strbuf_add(sb, line, linelen);
- strbuf_addch(sb, '\n');
- }
-}
-
-void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit,
- struct strbuf *sb, int abbrev,
- const char *subject, const char *after_subject,
- enum date_mode dmode, int plain_non_ascii)
-{
- unsigned long beginning_of_body;
- int indent = 4;
- const char *msg = commit->buffer;
- char *reencoded;
- const char *encoding;
-
- if (fmt == CMIT_FMT_USERFORMAT) {
- format_commit_message(commit, user_format, sb);
- return;
- }
-
- encoding = (git_log_output_encoding
- ? git_log_output_encoding
- : git_commit_encoding);
- if (!encoding)
- encoding = "utf-8";
- reencoded = logmsg_reencode(commit, encoding);
- if (reencoded) {
- msg = reencoded;
- }
-
- if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
- indent = 0;
-
- /* After-subject is used to pass in Content-Type: multipart
- * MIME header; in that case we do not have to do the
- * plaintext content type even if the commit message has
- * non 7-bit ASCII character. Otherwise, check if we need
- * to say this is not a 7-bit ASCII.
- */
- if (fmt == CMIT_FMT_EMAIL && !after_subject) {
- int i, ch, in_body;
-
- for (in_body = i = 0; (ch = msg[i]); i++) {
- if (!in_body) {
- /* author could be non 7-bit ASCII but
- * the log may be so; skip over the
- * header part first.
- */
- if (ch == '\n' && msg[i+1] == '\n')
- in_body = 1;
- }
- else if (non_ascii(ch)) {
- plain_non_ascii = 1;
- break;
- }
- }
- }
-
- pp_header(fmt, abbrev, dmode, encoding, commit, &msg, sb);
- if (fmt != CMIT_FMT_ONELINE && !subject) {
- strbuf_addch(sb, '\n');
- }
-
- /* Skip excess blank lines at the beginning of body, if any... */
- for (;;) {
- int linelen = get_one_line(msg);
- int ll = linelen;
- if (!linelen)
- break;
- if (!is_empty_line(msg, &ll))
- break;
- msg += linelen;
- }
-
- /* These formats treat the title line specially. */
- if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
- pp_title_line(fmt, &msg, sb, subject,
- after_subject, encoding, plain_non_ascii);
-
- beginning_of_body = sb->len;
- if (fmt != CMIT_FMT_ONELINE)
- pp_remainder(fmt, &msg, sb, indent);
- strbuf_rtrim(sb);
-
- /* Make sure there is an EOLN for the non-oneline case */
- if (fmt != CMIT_FMT_ONELINE)
- strbuf_addch(sb, '\n');
-
- /*
- * The caller may append additional body text in e-mail
- * format. Make sure we did not strip the blank line
- * between the header and the body.
- */
- if (fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body)
- strbuf_addch(sb, '\n');
- free(reencoded);
-}
-
struct commit *pop_commit(struct commit_list **stack)
{
struct commit_list *top = *stack;
diff --git a/pretty.c b/pretty.c
new file mode 100644
index 0000000..490cede
--- /dev/null
+++ b/pretty.c
@@ -0,0 +1,723 @@
+#include "cache.h"
+#include "commit.h"
+#include "interpolate.h"
+#include "utf8.h"
+#include "diff.h"
+#include "revision.h"
+
+static struct cmt_fmt_map {
+ const char *n;
+ size_t cmp_len;
+ enum cmit_fmt v;
+} cmt_fmts[] = {
+ { "raw", 1, CMIT_FMT_RAW },
+ { "medium", 1, CMIT_FMT_MEDIUM },
+ { "short", 1, CMIT_FMT_SHORT },
+ { "email", 1, CMIT_FMT_EMAIL },
+ { "full", 5, CMIT_FMT_FULL },
+ { "fuller", 5, CMIT_FMT_FULLER },
+ { "oneline", 1, CMIT_FMT_ONELINE },
+ { "format:", 7, CMIT_FMT_USERFORMAT},
+};
+
+static char *user_format;
+
+enum cmit_fmt get_commit_format(const char *arg)
+{
+ int i;
+
+ if (!arg || !*arg)
+ return CMIT_FMT_DEFAULT;
+ if (*arg == '=')
+ arg++;
+ if (!prefixcmp(arg, "format:")) {
+ if (user_format)
+ free(user_format);
+ user_format = xstrdup(arg + 7);
+ return CMIT_FMT_USERFORMAT;
+ }
+ for (i = 0; i < ARRAY_SIZE(cmt_fmts); i++) {
+ if (!strncmp(arg, cmt_fmts[i].n, cmt_fmts[i].cmp_len) &&
+ !strncmp(arg, cmt_fmts[i].n, strlen(arg)))
+ return cmt_fmts[i].v;
+ }
+
+ die("invalid --pretty format: %s", arg);
+}
+
+/*
+ * Generic support for pretty-printing the header
+ */
+static int get_one_line(const char *msg)
+{
+ int ret = 0;
+
+ for (;;) {
+ char c = *msg++;
+ if (!c)
+ break;
+ ret++;
+ if (c == '\n')
+ break;
+ }
+ return ret;
+}
+
+/* High bit set, or ISO-2022-INT */
+int non_ascii(int ch)
+{
+ ch = (ch & 0xff);
+ return ((ch & 0x80) || (ch == 0x1b));
+}
+
+static int is_rfc2047_special(char ch)
+{
+ return (non_ascii(ch) || (ch == '=') || (ch == '?') || (ch == '_'));
+}
+
+static void add_rfc2047(struct strbuf *sb, const char *line, int len,
+ const char *encoding)
+{
+ int i, last;
+
+ for (i = 0; i < len; i++) {
+ int ch = line[i];
+ if (non_ascii(ch))
+ goto needquote;
+ if ((i + 1 < len) && (ch == '=' && line[i+1] == '?'))
+ goto needquote;
+ }
+ strbuf_add(sb, line, len);
+ return;
+
+needquote:
+ strbuf_grow(sb, len * 3 + strlen(encoding) + 100);
+ strbuf_addf(sb, "=?%s?q?", encoding);
+ for (i = last = 0; i < len; i++) {
+ unsigned ch = line[i] & 0xFF;
+ /*
+ * We encode ' ' using '=20' even though rfc2047
+ * allows using '_' for readability. Unfortunately,
+ * many programs do not understand this and just
+ * leave the underscore in place.
+ */
+ if (is_rfc2047_special(ch) || ch == ' ') {
+ strbuf_add(sb, line + last, i - last);
+ strbuf_addf(sb, "=%02X", ch);
+ last = i + 1;
+ }
+ }
+ strbuf_add(sb, line + last, len - last);
+ strbuf_addstr(sb, "?=");
+}
+
+static void add_user_info(const char *what, enum cmit_fmt fmt, struct strbuf *sb,
+ const char *line, enum date_mode dmode,
+ const char *encoding)
+{
+ char *date;
+ int namelen;
+ unsigned long time;
+ int tz;
+ const char *filler = " ";
+
+ if (fmt == CMIT_FMT_ONELINE)
+ return;
+ date = strchr(line, '>');
+ if (!date)
+ return;
+ namelen = ++date - line;
+ time = strtoul(date, &date, 10);
+ tz = strtol(date, NULL, 10);
+
+ if (fmt == CMIT_FMT_EMAIL) {
+ char *name_tail = strchr(line, '<');
+ int display_name_length;
+ if (!name_tail)
+ return;
+ while (line < name_tail && isspace(name_tail[-1]))
+ name_tail--;
+ display_name_length = name_tail - line;
+ filler = "";
+ strbuf_addstr(sb, "From: ");
+ add_rfc2047(sb, line, display_name_length, encoding);
+ strbuf_add(sb, name_tail, namelen - display_name_length);
+ strbuf_addch(sb, '\n');
+ } else {
+ strbuf_addf(sb, "%s: %.*s%.*s\n", what,
+ (fmt == CMIT_FMT_FULLER) ? 4 : 0,
+ filler, namelen, line);
+ }
+ switch (fmt) {
+ case CMIT_FMT_MEDIUM:
+ strbuf_addf(sb, "Date: %s\n", show_date(time, tz, dmode));
+ break;
+ case CMIT_FMT_EMAIL:
+ strbuf_addf(sb, "Date: %s\n", show_date(time, tz, DATE_RFC2822));
+ break;
+ case CMIT_FMT_FULLER:
+ strbuf_addf(sb, "%sDate: %s\n", what, show_date(time, tz, dmode));
+ break;
+ default:
+ /* notin' */
+ break;
+ }
+}
+
+static int is_empty_line(const char *line, int *len_p)
+{
+ int len = *len_p;
+ while (len && isspace(line[len-1]))
+ len--;
+ *len_p = len;
+ return !len;
+}
+
+static void add_merge_info(enum cmit_fmt fmt, struct strbuf *sb,
+ const struct commit *commit, int abbrev)
+{
+ struct commit_list *parent = commit->parents;
+
+ if ((fmt == CMIT_FMT_ONELINE) || (fmt == CMIT_FMT_EMAIL) ||
+ !parent || !parent->next)
+ return;
+
+ strbuf_addstr(sb, "Merge:");
+
+ while (parent) {
+ struct commit *p = parent->item;
+ const char *hex = NULL;
+ const char *dots;
+ if (abbrev)
+ hex = find_unique_abbrev(p->object.sha1, abbrev);
+ if (!hex)
+ hex = sha1_to_hex(p->object.sha1);
+ dots = (abbrev && strlen(hex) != 40) ? "..." : "";
+ parent = parent->next;
+
+ strbuf_addf(sb, " %s%s", hex, dots);
+ }
+ strbuf_addch(sb, '\n');
+}
+
+static char *get_header(const struct commit *commit, const char *key)
+{
+ int key_len = strlen(key);
+ const char *line = commit->buffer;
+
+ for (;;) {
+ const char *eol = strchr(line, '\n'), *next;
+
+ if (line == eol)
+ return NULL;
+ if (!eol) {
+ eol = line + strlen(line);
+ next = NULL;
+ } else
+ next = eol + 1;
+ if (eol - line > key_len &&
+ !strncmp(line, key, key_len) &&
+ line[key_len] == ' ') {
+ return xmemdupz(line + key_len + 1, eol - line - key_len - 1);
+ }
+ line = next;
+ }
+}
+
+static char *replace_encoding_header(char *buf, const char *encoding)
+{
+ struct strbuf tmp;
+ size_t start, len;
+ char *cp = buf;
+
+ /* guess if there is an encoding header before a \n\n */
+ while (strncmp(cp, "encoding ", strlen("encoding "))) {
+ cp = strchr(cp, '\n');
+ if (!cp || *++cp == '\n')
+ return buf;
+ }
+ start = cp - buf;
+ cp = strchr(cp, '\n');
+ if (!cp)
+ return buf; /* should not happen but be defensive */
+ len = cp + 1 - (buf + start);
+
+ strbuf_init(&tmp, 0);
+ strbuf_attach(&tmp, buf, strlen(buf), strlen(buf) + 1);
+ if (is_encoding_utf8(encoding)) {
+ /* we have re-coded to UTF-8; drop the header */
+ strbuf_remove(&tmp, start, len);
+ } else {
+ /* just replaces XXXX in 'encoding XXXX\n' */
+ strbuf_splice(&tmp, start + strlen("encoding "),
+ len - strlen("encoding \n"),
+ encoding, strlen(encoding));
+ }
+ return strbuf_detach(&tmp, NULL);
+}
+
+static char *logmsg_reencode(const struct commit *commit,
+ const char *output_encoding)
+{
+ static const char *utf8 = "utf-8";
+ const char *use_encoding;
+ char *encoding;
+ char *out;
+
+ if (!*output_encoding)
+ return NULL;
+ encoding = get_header(commit, "encoding");
+ use_encoding = encoding ? encoding : utf8;
+ if (!strcmp(use_encoding, output_encoding))
+ if (encoding) /* we'll strip encoding header later */
+ out = xstrdup(commit->buffer);
+ else
+ return NULL; /* nothing to do */
+ else
+ out = reencode_string(commit->buffer,
+ output_encoding, use_encoding);
+ if (out)
+ out = replace_encoding_header(out, output_encoding);
+
+ free(encoding);
+ return out;
+}
+
+static void fill_person(struct interp *table, const char *msg, int len)
+{
+ int start, end, tz = 0;
+ unsigned long date;
+ char *ep;
+
+ /* parse name */
+ for (end = 0; end < len && msg[end] != '<'; end++)
+ ; /* do nothing */
+ start = end + 1;
+ while (end > 0 && isspace(msg[end - 1]))
+ end--;
+ table[0].value = xmemdupz(msg, end);
+
+ if (start >= len)
+ return;
+
+ /* parse email */
+ for (end = start + 1; end < len && msg[end] != '>'; end++)
+ ; /* do nothing */
+
+ if (end >= len)
+ return;
+
+ table[1].value = xmemdupz(msg + start, end - start);
+
+ /* parse date */
+ for (start = end + 1; start < len && isspace(msg[start]); start++)
+ ; /* do nothing */
+ if (start >= len)
+ return;
+ date = strtoul(msg + start, &ep, 10);
+ if (msg + start == ep)
+ return;
+
+ table[5].value = xmemdupz(msg + start, ep - (msg + start));
+
+ /* parse tz */
+ for (start = ep - msg + 1; start < len && isspace(msg[start]); start++)
+ ; /* do nothing */
+ if (start + 1 < len) {
+ tz = strtoul(msg + start + 1, NULL, 10);
+ if (msg[start] == '-')
+ tz = -tz;
+ }
+
+ interp_set_entry(table, 2, show_date(date, tz, DATE_NORMAL));
+ interp_set_entry(table, 3, show_date(date, tz, DATE_RFC2822));
+ interp_set_entry(table, 4, show_date(date, tz, DATE_RELATIVE));
+ interp_set_entry(table, 6, show_date(date, tz, DATE_ISO8601));
+}
+
+void format_commit_message(const struct commit *commit,
+ const void *format, struct strbuf *sb)
+{
+ struct interp table[] = {
+ { "%H" }, /* commit hash */
+ { "%h" }, /* abbreviated commit hash */
+ { "%T" }, /* tree hash */
+ { "%t" }, /* abbreviated tree hash */
+ { "%P" }, /* parent hashes */
+ { "%p" }, /* abbreviated parent hashes */
+ { "%an" }, /* author name */
+ { "%ae" }, /* author email */
+ { "%ad" }, /* author date */
+ { "%aD" }, /* author date, RFC2822 style */
+ { "%ar" }, /* author date, relative */
+ { "%at" }, /* author date, UNIX timestamp */
+ { "%ai" }, /* author date, ISO 8601 */
+ { "%cn" }, /* committer name */
+ { "%ce" }, /* committer email */
+ { "%cd" }, /* committer date */
+ { "%cD" }, /* committer date, RFC2822 style */
+ { "%cr" }, /* committer date, relative */
+ { "%ct" }, /* committer date, UNIX timestamp */
+ { "%ci" }, /* committer date, ISO 8601 */
+ { "%e" }, /* encoding */
+ { "%s" }, /* subject */
+ { "%b" }, /* body */
+ { "%Cred" }, /* red */
+ { "%Cgreen" }, /* green */
+ { "%Cblue" }, /* blue */
+ { "%Creset" }, /* reset color */
+ { "%n" }, /* newline */
+ { "%m" }, /* left/right/bottom */
+ };
+ enum interp_index {
+ IHASH = 0, IHASH_ABBREV,
+ ITREE, ITREE_ABBREV,
+ IPARENTS, IPARENTS_ABBREV,
+ IAUTHOR_NAME, IAUTHOR_EMAIL,
+ IAUTHOR_DATE, IAUTHOR_DATE_RFC2822, IAUTHOR_DATE_RELATIVE,
+ IAUTHOR_TIMESTAMP, IAUTHOR_ISO8601,
+ ICOMMITTER_NAME, ICOMMITTER_EMAIL,
+ ICOMMITTER_DATE, ICOMMITTER_DATE_RFC2822,
+ ICOMMITTER_DATE_RELATIVE, ICOMMITTER_TIMESTAMP,
+ ICOMMITTER_ISO8601,
+ IENCODING,
+ ISUBJECT,
+ IBODY,
+ IRED, IGREEN, IBLUE, IRESET_COLOR,
+ INEWLINE,
+ ILEFT_RIGHT,
+ };
+ struct commit_list *p;
+ char parents[1024];
+ unsigned long len;
+ int i;
+ enum { HEADER, SUBJECT, BODY } state;
+ const char *msg = commit->buffer;
+
+ if (ILEFT_RIGHT + 1 != ARRAY_SIZE(table))
+ die("invalid interp table!");
+
+ /* these are independent of the commit */
+ interp_set_entry(table, IRED, "\033[31m");
+ interp_set_entry(table, IGREEN, "\033[32m");
+ interp_set_entry(table, IBLUE, "\033[34m");
+ interp_set_entry(table, IRESET_COLOR, "\033[m");
+ interp_set_entry(table, INEWLINE, "\n");
+
+ /* these depend on the commit */
+ if (!commit->object.parsed)
+ parse_object(commit->object.sha1);
+ interp_set_entry(table, IHASH, sha1_to_hex(commit->object.sha1));
+ interp_set_entry(table, IHASH_ABBREV,
+ find_unique_abbrev(commit->object.sha1,
+ DEFAULT_ABBREV));
+ interp_set_entry(table, ITREE, sha1_to_hex(commit->tree->object.sha1));
+ interp_set_entry(table, ITREE_ABBREV,
+ find_unique_abbrev(commit->tree->object.sha1,
+ DEFAULT_ABBREV));
+ interp_set_entry(table, ILEFT_RIGHT,
+ (commit->object.flags & BOUNDARY)
+ ? "-"
+ : (commit->object.flags & SYMMETRIC_LEFT)
+ ? "<"
+ : ">");
+
+ parents[1] = 0;
+ for (i = 0, p = commit->parents;
+ p && i < sizeof(parents) - 1;
+ p = p->next)
+ i += snprintf(parents + i, sizeof(parents) - i - 1, " %s",
+ sha1_to_hex(p->item->object.sha1));
+ interp_set_entry(table, IPARENTS, parents + 1);
+
+ parents[1] = 0;
+ for (i = 0, p = commit->parents;
+ p && i < sizeof(parents) - 1;
+ p = p->next)
+ i += snprintf(parents + i, sizeof(parents) - i - 1, " %s",
+ find_unique_abbrev(p->item->object.sha1,
+ DEFAULT_ABBREV));
+ interp_set_entry(table, IPARENTS_ABBREV, parents + 1);
+
+ for (i = 0, state = HEADER; msg[i] && state < BODY; i++) {
+ int eol;
+ for (eol = i; msg[eol] && msg[eol] != '\n'; eol++)
+ ; /* do nothing */
+
+ if (state == SUBJECT) {
+ table[ISUBJECT].value = xmemdupz(msg + i, eol - i);
+ i = eol;
+ }
+ if (i == eol) {
+ state++;
+ /* strip empty lines */
+ while (msg[eol + 1] == '\n')
+ eol++;
+ } else if (!prefixcmp(msg + i, "author "))
+ fill_person(table + IAUTHOR_NAME,
+ msg + i + 7, eol - i - 7);
+ else if (!prefixcmp(msg + i, "committer "))
+ fill_person(table + ICOMMITTER_NAME,
+ msg + i + 10, eol - i - 10);
+ else if (!prefixcmp(msg + i, "encoding "))
+ table[IENCODING].value =
+ xmemdupz(msg + i + 9, eol - i - 9);
+ i = eol;
+ }
+ if (msg[i])
+ table[IBODY].value = xstrdup(msg + i);
+
+ len = interpolate(sb->buf + sb->len, strbuf_avail(sb),
+ format, table, ARRAY_SIZE(table));
+ if (len > strbuf_avail(sb)) {
+ strbuf_grow(sb, len);
+ interpolate(sb->buf + sb->len, strbuf_avail(sb) + 1,
+ format, table, ARRAY_SIZE(table));
+ }
+ strbuf_setlen(sb, sb->len + len);
+ interp_clear_table(table, ARRAY_SIZE(table));
+}
+
+static void pp_header(enum cmit_fmt fmt,
+ int abbrev,
+ enum date_mode dmode,
+ const char *encoding,
+ const struct commit *commit,
+ const char **msg_p,
+ struct strbuf *sb)
+{
+ int parents_shown = 0;
+
+ for (;;) {
+ const char *line = *msg_p;
+ int linelen = get_one_line(*msg_p);
+
+ if (!linelen)
+ return;
+ *msg_p += linelen;
+
+ if (linelen == 1)
+ /* End of header */
+ return;
+
+ if (fmt == CMIT_FMT_RAW) {
+ strbuf_add(sb, line, linelen);
+ continue;
+ }
+
+ if (!memcmp(line, "parent ", 7)) {
+ if (linelen != 48)
+ die("bad parent line in commit");
+ continue;
+ }
+
+ if (!parents_shown) {
+ struct commit_list *parent;
+ int num;
+ for (parent = commit->parents, num = 0;
+ parent;
+ parent = parent->next, num++)
+ ;
+ /* with enough slop */
+ strbuf_grow(sb, num * 50 + 20);
+ add_merge_info(fmt, sb, commit, abbrev);
+ parents_shown = 1;
+ }
+
+ /*
+ * MEDIUM == DEFAULT shows only author with dates.
+ * FULL shows both authors but not dates.
+ * FULLER shows both authors and dates.
+ */
+ if (!memcmp(line, "author ", 7)) {
+ strbuf_grow(sb, linelen + 80);
+ add_user_info("Author", fmt, sb, line + 7, dmode, encoding);
+ }
+ if (!memcmp(line, "committer ", 10) &&
+ (fmt == CMIT_FMT_FULL || fmt == CMIT_FMT_FULLER)) {
+ strbuf_grow(sb, linelen + 80);
+ add_user_info("Commit", fmt, sb, line + 10, dmode, encoding);
+ }
+ }
+}
+
+static void pp_title_line(enum cmit_fmt fmt,
+ const char **msg_p,
+ struct strbuf *sb,
+ const char *subject,
+ const char *after_subject,
+ const char *encoding,
+ int plain_non_ascii)
+{
+ struct strbuf title;
+
+ strbuf_init(&title, 80);
+
+ for (;;) {
+ const char *line = *msg_p;
+ int linelen = get_one_line(line);
+
+ *msg_p += linelen;
+ if (!linelen || is_empty_line(line, &linelen))
+ break;
+
+ strbuf_grow(&title, linelen + 2);
+ if (title.len) {
+ if (fmt == CMIT_FMT_EMAIL) {
+ strbuf_addch(&title, '\n');
+ }
+ strbuf_addch(&title, ' ');
+ }
+ strbuf_add(&title, line, linelen);
+ }
+
+ strbuf_grow(sb, title.len + 1024);
+ if (subject) {
+ strbuf_addstr(sb, subject);
+ add_rfc2047(sb, title.buf, title.len, encoding);
+ } else {
+ strbuf_addbuf(sb, &title);
+ }
+ strbuf_addch(sb, '\n');
+
+ if (plain_non_ascii) {
+ const char *header_fmt =
+ "MIME-Version: 1.0\n"
+ "Content-Type: text/plain; charset=%s\n"
+ "Content-Transfer-Encoding: 8bit\n";
+ strbuf_addf(sb, header_fmt, encoding);
+ }
+ if (after_subject) {
+ strbuf_addstr(sb, after_subject);
+ }
+ if (fmt == CMIT_FMT_EMAIL) {
+ strbuf_addch(sb, '\n');
+ }
+ strbuf_release(&title);
+}
+
+static void pp_remainder(enum cmit_fmt fmt,
+ const char **msg_p,
+ struct strbuf *sb,
+ int indent)
+{
+ int first = 1;
+ for (;;) {
+ const char *line = *msg_p;
+ int linelen = get_one_line(line);
+ *msg_p += linelen;
+
+ if (!linelen)
+ break;
+
+ if (is_empty_line(line, &linelen)) {
+ if (first)
+ continue;
+ if (fmt == CMIT_FMT_SHORT)
+ break;
+ }
+ first = 0;
+
+ strbuf_grow(sb, linelen + indent + 20);
+ if (indent) {
+ memset(sb->buf + sb->len, ' ', indent);
+ strbuf_setlen(sb, sb->len + indent);
+ }
+ strbuf_add(sb, line, linelen);
+ strbuf_addch(sb, '\n');
+ }
+}
+
+void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit,
+ struct strbuf *sb, int abbrev,
+ const char *subject, const char *after_subject,
+ enum date_mode dmode, int plain_non_ascii)
+{
+ unsigned long beginning_of_body;
+ int indent = 4;
+ const char *msg = commit->buffer;
+ char *reencoded;
+ const char *encoding;
+
+ if (fmt == CMIT_FMT_USERFORMAT) {
+ format_commit_message(commit, user_format, sb);
+ return;
+ }
+
+ encoding = (git_log_output_encoding
+ ? git_log_output_encoding
+ : git_commit_encoding);
+ if (!encoding)
+ encoding = "utf-8";
+ reencoded = logmsg_reencode(commit, encoding);
+ if (reencoded) {
+ msg = reencoded;
+ }
+
+ if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
+ indent = 0;
+
+ /* After-subject is used to pass in Content-Type: multipart
+ * MIME header; in that case we do not have to do the
+ * plaintext content type even if the commit message has
+ * non 7-bit ASCII character. Otherwise, check if we need
+ * to say this is not a 7-bit ASCII.
+ */
+ if (fmt == CMIT_FMT_EMAIL && !after_subject) {
+ int i, ch, in_body;
+
+ for (in_body = i = 0; (ch = msg[i]); i++) {
+ if (!in_body) {
+ /* author could be non 7-bit ASCII but
+ * the log may be so; skip over the
+ * header part first.
+ */
+ if (ch == '\n' && msg[i+1] == '\n')
+ in_body = 1;
+ }
+ else if (non_ascii(ch)) {
+ plain_non_ascii = 1;
+ break;
+ }
+ }
+ }
+
+ pp_header(fmt, abbrev, dmode, encoding, commit, &msg, sb);
+ if (fmt != CMIT_FMT_ONELINE && !subject) {
+ strbuf_addch(sb, '\n');
+ }
+
+ /* Skip excess blank lines at the beginning of body, if any... */
+ for (;;) {
+ int linelen = get_one_line(msg);
+ int ll = linelen;
+ if (!linelen)
+ break;
+ if (!is_empty_line(msg, &ll))
+ break;
+ msg += linelen;
+ }
+
+ /* These formats treat the title line specially. */
+ if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
+ pp_title_line(fmt, &msg, sb, subject,
+ after_subject, encoding, plain_non_ascii);
+
+ beginning_of_body = sb->len;
+ if (fmt != CMIT_FMT_ONELINE)
+ pp_remainder(fmt, &msg, sb, indent);
+ strbuf_rtrim(sb);
+
+ /* Make sure there is an EOLN for the non-oneline case */
+ if (fmt != CMIT_FMT_ONELINE)
+ strbuf_addch(sb, '\n');
+
+ /*
+ * The caller may append additional body text in e-mail
+ * format. Make sure we did not strip the blank line
+ * between the header and the body.
+ */
+ if (fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body)
+ strbuf_addch(sb, '\n');
+ free(reencoded);
+}
--
1.5.3.5.1549.g91a3
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