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index 8933e3092a47bc62860430f2fa920dce978eb4a5..f56547455c50dcf170dbdb0f8424915a9db2c40e 100644 (file)
--- a/tig.c
+++ b/tig.c
* GNU General Public License for more details.
*/
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#ifndef TIG_VERSION
-#define TIG_VERSION "unknown-version"
-#endif
-
-#ifndef DEBUG
-#define NDEBUG
-#endif
-
-#include <assert.h>
-#include <errno.h>
-#include <ctype.h>
-#include <signal.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <sys/stat.h>
-#include <sys/select.h>
-#include <unistd.h>
-#include <sys/time.h>
-#include <time.h>
-#include <fcntl.h>
-
-#include <regex.h>
-
-#include <locale.h>
-#include <langinfo.h>
-#include <iconv.h>
-
-/* ncurses(3): Must be defined to have extended wide-character functions. */
-#define _XOPEN_SOURCE_EXTENDED
-
-#ifdef HAVE_NCURSESW_H
-#include <ncursesw/ncurses.h>
-#else
-#include <ncurses.h>
-#endif
-
-#if __GNUC__ >= 3
-#define __NORETURN __attribute__((__noreturn__))
-#else
-#define __NORETURN
-#endif
+#include "tig.h"
+#include "io.h"
+#include "graph.h"
static void __NORETURN die(const char *err, ...);
static void warn(const char *msg, ...);
static void report(const char *msg, ...);
-#define ABS(x) ((x) >= 0 ? (x) : -(x))
-#define MIN(x, y) ((x) < (y) ? (x) : (y))
-#define MAX(x, y) ((x) > (y) ? (x) : (y))
-
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
-#define STRING_SIZE(x) (sizeof(x) - 1)
-
-#define SIZEOF_STR 1024 /* Default string size. */
-#define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
-#define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
-#define SIZEOF_ARG 32 /* Default argument array size. */
-
-/* Revision graph */
-
-#define REVGRAPH_INIT 'I'
-#define REVGRAPH_MERGE 'M'
-#define REVGRAPH_BRANCH '+'
-#define REVGRAPH_COMMIT '*'
-#define REVGRAPH_BOUND '^'
-
-#define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
-
-/* This color name can be used to refer to the default term colors. */
-#define COLOR_DEFAULT (-1)
-
-#define ICONV_NONE ((iconv_t) -1)
-#ifndef ICONV_CONST
-#define ICONV_CONST /* nothing */
-#endif
-
-/* The format and size of the date column in the main view. */
-#define DATE_FORMAT "%Y-%m-%d %H:%M"
-#define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
-#define DATE_SHORT_COLS STRING_SIZE("2006-04-29 ")
-
-#define ID_COLS 8
-#define AUTHOR_COLS 19
-
-#define MIN_VIEW_HEIGHT 4
-
-#define NULL_ID "0000000000000000000000000000000000000000"
-
-#define S_ISGITLINK(mode) (((mode) & S_IFMT) == 0160000)
-
-/* Some ASCII-shorthands fitted into the ncurses namespace. */
-#define KEY_CTL(x) ((x) & 0x1f) /* KEY_CTL(A) == ^A == \1 */
-#define KEY_TAB '\t'
-#define KEY_RETURN '\r'
-#define KEY_ESC 27
-
struct ref {
char id[SIZEOF_REV]; /* Commit SHA1 ID */
static bool prompt_menu(const char *prompt, const struct menu_item *items, int *selected);
-/*
- * Allocation helpers ... Entering macro hell to never be seen again.
- */
-
-#define DEFINE_ALLOCATOR(name, type, chunk_size) \
-static type * \
-name(type **mem, size_t size, size_t increase) \
-{ \
- size_t num_chunks = (size + chunk_size - 1) / chunk_size; \
- size_t num_chunks_new = (size + increase + chunk_size - 1) / chunk_size;\
- type *tmp = *mem; \
- \
- if (mem == NULL || num_chunks != num_chunks_new) { \
- tmp = realloc(tmp, num_chunks_new * chunk_size * sizeof(type)); \
- if (tmp) \
- *mem = tmp; \
- } \
- \
- return tmp; \
-}
-
-/*
- * String helpers
- */
-
-static inline void
-string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
-{
- if (srclen > dstlen - 1)
- srclen = dstlen - 1;
-
- strncpy(dst, src, srclen);
- dst[srclen] = 0;
-}
-
-/* Shorthands for safely copying into a fixed buffer. */
-
-#define string_copy(dst, src) \
- string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
-
-#define string_ncopy(dst, src, srclen) \
- string_ncopy_do(dst, sizeof(dst), src, srclen)
-
-#define string_copy_rev(dst, src) \
- string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
-
-#define string_add(dst, from, src) \
- string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
-
-static size_t
-string_expand(char *dst, size_t dstlen, const char *src, int tabsize)
-{
- size_t size, pos;
-
- for (size = pos = 0; size < dstlen - 1 && src[pos]; pos++) {
- if (src[pos] == '\t') {
- size_t expanded = tabsize - (size % tabsize);
-
- if (expanded + size >= dstlen - 1)
- expanded = dstlen - size - 1;
- memcpy(dst + size, " ", expanded);
- size += expanded;
- } else {
- dst[size++] = src[pos];
- }
- }
-
- dst[size] = 0;
- return pos;
-}
-
-static char *
-chomp_string(char *name)
-{
- int namelen;
-
- while (isspace(*name))
- name++;
-
- namelen = strlen(name) - 1;
- while (namelen > 0 && isspace(name[namelen]))
- name[namelen--] = 0;
-
- return name;
-}
-
-static bool
-string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
-{
- va_list args;
- size_t pos = bufpos ? *bufpos : 0;
-
- va_start(args, fmt);
- pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
- va_end(args);
-
- if (bufpos)
- *bufpos = pos;
-
- return pos >= bufsize ? FALSE : TRUE;
-}
-
-#define string_format(buf, fmt, args...) \
- string_nformat(buf, sizeof(buf), NULL, fmt, args)
-
-#define string_format_from(buf, from, fmt, args...) \
- string_nformat(buf, sizeof(buf), from, fmt, args)
-
-static int
-string_enum_compare(const char *str1, const char *str2, int len)
-{
- size_t i;
-
-#define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
-
- /* Diff-Header == DIFF_HEADER */
- for (i = 0; i < len; i++) {
- if (toupper(str1[i]) == toupper(str2[i]))
- continue;
-
- if (string_enum_sep(str1[i]) &&
- string_enum_sep(str2[i]))
- continue;
-
- return str1[i] - str2[i];
- }
-
- return 0;
-}
-
-#define enum_equals(entry, str, len) \
- ((entry).namelen == (len) && !string_enum_compare((entry).name, str, len))
-
-struct enum_map {
- const char *name;
- int namelen;
- int value;
+enum graphic {
+ GRAPHIC_ASCII = 0,
+ GRAPHIC_DEFAULT,
+ GRAPHIC_UTF8
};
-#define ENUM_MAP(name, value) { name, STRING_SIZE(name), value }
-
-static char *
-enum_map_name(const char *name, size_t namelen)
-{
- static char buf[SIZEOF_STR];
- int bufpos;
-
- for (bufpos = 0; bufpos <= namelen; bufpos++) {
- buf[bufpos] = tolower(name[bufpos]);
- if (buf[bufpos] == '_')
- buf[bufpos] = '-';
- }
-
- buf[bufpos] = 0;
- return buf;
-}
-
-#define enum_name(entry) enum_map_name((entry).name, (entry).namelen)
-
-static bool
-map_enum_do(const struct enum_map *map, size_t map_size, int *value, const char *name)
-{
- size_t namelen = strlen(name);
- int i;
-
- for (i = 0; i < map_size; i++)
- if (enum_equals(map[i], name, namelen)) {
- *value = map[i].value;
- return TRUE;
- }
-
- return FALSE;
-}
-
-#define map_enum(attr, map, name) \
- map_enum_do(map, ARRAY_SIZE(map), attr, name)
-
-#define prefixcmp(str1, str2) \
- strncmp(str1, str2, STRING_SIZE(str2))
-
-static inline int
-suffixcmp(const char *str, int slen, const char *suffix)
-{
- size_t len = slen >= 0 ? slen : strlen(str);
- size_t suffixlen = strlen(suffix);
-
- return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
-}
-
-
-/*
- * Unicode / UTF-8 handling
- *
- * NOTE: Much of the following code for dealing with Unicode is derived from
- * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
- * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
- */
-
-static inline int
-unicode_width(unsigned long c, int tab_size)
-{
- if (c >= 0x1100 &&
- (c <= 0x115f /* Hangul Jamo */
- || c == 0x2329
- || c == 0x232a
- || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
- /* CJK ... Yi */
- || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
- || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
- || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
- || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
- || (c >= 0xffe0 && c <= 0xffe6)
- || (c >= 0x20000 && c <= 0x2fffd)
- || (c >= 0x30000 && c <= 0x3fffd)))
- return 2;
-
- if (c == '\t')
- return tab_size;
-
- return 1;
-}
-
-/* Number of bytes used for encoding a UTF-8 character indexed by first byte.
- * Illegal bytes are set one. */
-static const unsigned char utf8_bytes[256] = {
- 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
- 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
- 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
- 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
- 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
- 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
- 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,
- 3,3,3,3,3,3,3,3, 3,3,3,3,3,3,3,3, 4,4,4,4,4,4,4,4, 5,5,5,5,6,6,1,1,
+static const struct enum_map graphic_map[] = {
+#define GRAPHIC_(name) ENUM_MAP(#name, GRAPHIC_##name)
+ GRAPHIC_(ASCII),
+ GRAPHIC_(DEFAULT),
+ GRAPHIC_(UTF8)
+#undef GRAPHIC_
};
-static inline unsigned char
-utf8_char_length(const char *string, const char *end)
-{
- int c = *(unsigned char *) string;
-
- return utf8_bytes[c];
-}
-
-/* Decode UTF-8 multi-byte representation into a Unicode character. */
-static inline unsigned long
-utf8_to_unicode(const char *string, size_t length)
-{
- unsigned long unicode;
-
- switch (length) {
- case 1:
- unicode = string[0];
- break;
- case 2:
- unicode = (string[0] & 0x1f) << 6;
- unicode += (string[1] & 0x3f);
- break;
- case 3:
- unicode = (string[0] & 0x0f) << 12;
- unicode += ((string[1] & 0x3f) << 6);
- unicode += (string[2] & 0x3f);
- break;
- case 4:
- unicode = (string[0] & 0x0f) << 18;
- unicode += ((string[1] & 0x3f) << 12);
- unicode += ((string[2] & 0x3f) << 6);
- unicode += (string[3] & 0x3f);
- break;
- case 5:
- unicode = (string[0] & 0x0f) << 24;
- unicode += ((string[1] & 0x3f) << 18);
- unicode += ((string[2] & 0x3f) << 12);
- unicode += ((string[3] & 0x3f) << 6);
- unicode += (string[4] & 0x3f);
- break;
- case 6:
- unicode = (string[0] & 0x01) << 30;
- unicode += ((string[1] & 0x3f) << 24);
- unicode += ((string[2] & 0x3f) << 18);
- unicode += ((string[3] & 0x3f) << 12);
- unicode += ((string[4] & 0x3f) << 6);
- unicode += (string[5] & 0x3f);
- break;
- default:
- return 0;
- }
-
- /* Invalid characters could return the special 0xfffd value but NUL
- * should be just as good. */
- return unicode > 0xffff ? 0 : unicode;
-}
-
-/* Calculates how much of string can be shown within the given maximum width
- * and sets trimmed parameter to non-zero value if all of string could not be
- * shown. If the reserve flag is TRUE, it will reserve at least one
- * trailing character, which can be useful when drawing a delimiter.
- *
- * Returns the number of bytes to output from string to satisfy max_width. */
-static size_t
-utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve, int tab_size)
-{
- const char *string = *start;
- const char *end = strchr(string, '\0');
- unsigned char last_bytes = 0;
- size_t last_ucwidth = 0;
-
- *width = 0;
- *trimmed = 0;
-
- while (string < end) {
- unsigned char bytes = utf8_char_length(string, end);
- size_t ucwidth;
- unsigned long unicode;
-
- if (string + bytes > end)
- break;
-
- /* Change representation to figure out whether
- * it is a single- or double-width character. */
-
- unicode = utf8_to_unicode(string, bytes);
- /* FIXME: Graceful handling of invalid Unicode character. */
- if (!unicode)
- break;
-
- ucwidth = unicode_width(unicode, tab_size);
- if (skip > 0) {
- skip -= ucwidth <= skip ? ucwidth : skip;
- *start += bytes;
- }
- *width += ucwidth;
- if (*width > max_width) {
- *trimmed = 1;
- *width -= ucwidth;
- if (reserve && *width == max_width) {
- string -= last_bytes;
- *width -= last_ucwidth;
- }
- break;
- }
-
- string += bytes;
- last_bytes = ucwidth ? bytes : 0;
- last_ucwidth = ucwidth;
- }
-
- return string - *start;
-}
-
-
#define DATE_INFO \
DATE_(NO), \
DATE_(DEFAULT), \
}
-static bool
-argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
-{
- int valuelen;
-
- while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
- bool advance = cmd[valuelen] != 0;
-
- cmd[valuelen] = 0;
- argv[(*argc)++] = chomp_string(cmd);
- cmd = chomp_string(cmd + valuelen + advance);
- }
-
- if (*argc < SIZEOF_ARG)
- argv[*argc] = NULL;
- return *argc < SIZEOF_ARG;
-}
-
-static bool
-argv_from_env(const char **argv, const char *name)
-{
- char *env = argv ? getenv(name) : NULL;
- int argc = 0;
-
- if (env && *env)
- env = strdup(env);
- return !env || argv_from_string(argv, &argc, env);
-}
-
-static void
-argv_free(const char *argv[])
-{
- int argc;
-
- if (!argv)
- return;
- for (argc = 0; argv[argc]; argc++)
- free((void *) argv[argc]);
- argv[0] = NULL;
-}
-
-static size_t
-argv_size(const char **argv)
-{
- int argc = 0;
-
- while (argv && argv[argc])
- argc++;
-
- return argc;
-}
-
-DEFINE_ALLOCATOR(argv_realloc, const char *, SIZEOF_ARG)
-
-static bool
-argv_append(const char ***argv, const char *arg)
-{
- size_t argc = argv_size(*argv);
-
- if (!argv_realloc(argv, argc, 2))
- return FALSE;
-
- (*argv)[argc++] = strdup(arg);
- (*argv)[argc] = NULL;
- return TRUE;
-}
-
-static bool
-argv_append_array(const char ***dst_argv, const char *src_argv[])
-{
- int i;
-
- for (i = 0; src_argv && src_argv[i]; i++)
- if (!argv_append(dst_argv, src_argv[i]))
- return FALSE;
- return TRUE;
-}
-
-static bool
-argv_copy(const char ***dst, const char *src[])
-{
- int argc;
-
- for (argc = 0; src[argc]; argc++)
- if (!argv_append(dst, src[argc]))
- return FALSE;
- return TRUE;
-}
-
-
-/*
- * Executing external commands.
- */
-
-enum io_type {
- IO_FD, /* File descriptor based IO. */
- IO_BG, /* Execute command in the background. */
- IO_FG, /* Execute command with same std{in,out,err}. */
- IO_RD, /* Read only fork+exec IO. */
- IO_WR, /* Write only fork+exec IO. */
- IO_AP, /* Append fork+exec output to file. */
-};
-
-struct io {
- int pipe; /* Pipe end for reading or writing. */
- pid_t pid; /* PID of spawned process. */
- int error; /* Error status. */
- char *buf; /* Read buffer. */
- size_t bufalloc; /* Allocated buffer size. */
- size_t bufsize; /* Buffer content size. */
- char *bufpos; /* Current buffer position. */
- unsigned int eof:1; /* Has end of file been reached. */
-};
-
-static void
-io_init(struct io *io)
-{
- memset(io, 0, sizeof(*io));
- io->pipe = -1;
-}
-
-static bool
-io_open(struct io *io, const char *fmt, ...)
-{
- char name[SIZEOF_STR] = "";
- bool fits;
- va_list args;
-
- io_init(io);
-
- va_start(args, fmt);
- fits = vsnprintf(name, sizeof(name), fmt, args) < sizeof(name);
- va_end(args);
-
- if (!fits) {
- io->error = ENAMETOOLONG;
- return FALSE;
- }
- io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
- if (io->pipe == -1)
- io->error = errno;
- return io->pipe != -1;
-}
-
-static bool
-io_kill(struct io *io)
-{
- return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
-}
-
-static bool
-io_done(struct io *io)
-{
- pid_t pid = io->pid;
-
- if (io->pipe != -1)
- close(io->pipe);
- free(io->buf);
- io_init(io);
-
- while (pid > 0) {
- int status;
- pid_t waiting = waitpid(pid, &status, 0);
-
- if (waiting < 0) {
- if (errno == EINTR)
- continue;
- io->error = errno;
- return FALSE;
- }
-
- return waiting == pid &&
- !WIFSIGNALED(status) &&
- WIFEXITED(status) &&
- !WEXITSTATUS(status);
- }
-
- return TRUE;
-}
-
-static bool
-io_run(struct io *io, enum io_type type, const char *dir, const char *argv[], ...)
-{
- int pipefds[2] = { -1, -1 };
- va_list args;
-
- io_init(io);
-
- if ((type == IO_RD || type == IO_WR) && pipe(pipefds) < 0) {
- io->error = errno;
- return FALSE;
- } else if (type == IO_AP) {
- va_start(args, argv);
- pipefds[1] = va_arg(args, int);
- va_end(args);
- }
-
- if ((io->pid = fork())) {
- if (io->pid == -1)
- io->error = errno;
- if (pipefds[!(type == IO_WR)] != -1)
- close(pipefds[!(type == IO_WR)]);
- if (io->pid != -1) {
- io->pipe = pipefds[!!(type == IO_WR)];
- return TRUE;
- }
-
- } else {
- if (type != IO_FG) {
- int devnull = open("/dev/null", O_RDWR);
- int readfd = type == IO_WR ? pipefds[0] : devnull;
- int writefd = (type == IO_RD || type == IO_AP)
- ? pipefds[1] : devnull;
-
- dup2(readfd, STDIN_FILENO);
- dup2(writefd, STDOUT_FILENO);
- dup2(devnull, STDERR_FILENO);
-
- close(devnull);
- if (pipefds[0] != -1)
- close(pipefds[0]);
- if (pipefds[1] != -1)
- close(pipefds[1]);
- }
-
- if (dir && *dir && chdir(dir) == -1)
- exit(errno);
-
- execvp(argv[0], (char *const*) argv);
- exit(errno);
- }
-
- if (pipefds[!!(type == IO_WR)] != -1)
- close(pipefds[!!(type == IO_WR)]);
- return FALSE;
-}
-
-static bool
-io_complete(enum io_type type, const char **argv, const char *dir, int fd)
-{
- struct io io;
-
- return io_run(&io, type, dir, argv, fd) && io_done(&io);
-}
-
-static bool
-io_run_bg(const char **argv)
-{
- return io_complete(IO_BG, argv, NULL, -1);
-}
-
-static bool
-io_run_fg(const char **argv, const char *dir)
-{
- return io_complete(IO_FG, argv, dir, -1);
-}
-
-static bool
-io_run_append(const char **argv, int fd)
-{
- return io_complete(IO_AP, argv, NULL, fd);
-}
-
-static bool
-io_eof(struct io *io)
-{
- return io->eof;
-}
-
-static int
-io_error(struct io *io)
-{
- return io->error;
-}
-
-static char *
-io_strerror(struct io *io)
-{
- return strerror(io->error);
-}
-
-static bool
-io_can_read(struct io *io)
-{
- struct timeval tv = { 0, 500 };
- fd_set fds;
-
- FD_ZERO(&fds);
- FD_SET(io->pipe, &fds);
-
- return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
-}
-
-static ssize_t
-io_read(struct io *io, void *buf, size_t bufsize)
-{
- do {
- ssize_t readsize = read(io->pipe, buf, bufsize);
-
- if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
- continue;
- else if (readsize == -1)
- io->error = errno;
- else if (readsize == 0)
- io->eof = 1;
- return readsize;
- } while (1);
-}
-
-DEFINE_ALLOCATOR(io_realloc_buf, char, BUFSIZ)
-
-static char *
-io_get(struct io *io, int c, bool can_read)
-{
- char *eol;
- ssize_t readsize;
-
- while (TRUE) {
- if (io->bufsize > 0) {
- eol = memchr(io->bufpos, c, io->bufsize);
- if (eol) {
- char *line = io->bufpos;
-
- *eol = 0;
- io->bufpos = eol + 1;
- io->bufsize -= io->bufpos - line;
- return line;
- }
- }
-
- if (io_eof(io)) {
- if (io->bufsize) {
- io->bufpos[io->bufsize] = 0;
- io->bufsize = 0;
- return io->bufpos;
- }
- return NULL;
- }
-
- if (!can_read)
- return NULL;
-
- if (io->bufsize > 0 && io->bufpos > io->buf)
- memmove(io->buf, io->bufpos, io->bufsize);
-
- if (io->bufalloc == io->bufsize) {
- if (!io_realloc_buf(&io->buf, io->bufalloc, BUFSIZ))
- return NULL;
- io->bufalloc += BUFSIZ;
- }
-
- io->bufpos = io->buf;
- readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
- if (io_error(io))
- return NULL;
- io->bufsize += readsize;
- }
-}
-
-static bool
-io_write(struct io *io, const void *buf, size_t bufsize)
-{
- size_t written = 0;
-
- while (!io_error(io) && written < bufsize) {
- ssize_t size;
-
- size = write(io->pipe, buf + written, bufsize - written);
- if (size < 0 && (errno == EAGAIN || errno == EINTR))
- continue;
- else if (size == -1)
- io->error = errno;
- else
- written += size;
- }
-
- return written == bufsize;
-}
-
-static bool
-io_read_buf(struct io *io, char buf[], size_t bufsize)
-{
- char *result = io_get(io, '\n', TRUE);
-
- if (result) {
- result = chomp_string(result);
- string_ncopy_do(buf, bufsize, result, strlen(result));
- }
-
- return io_done(io) && result;
-}
-
-static bool
-io_run_buf(const char **argv, char buf[], size_t bufsize)
-{
- struct io io;
-
- return io_run(&io, IO_RD, NULL, argv) && io_read_buf(&io, buf, bufsize);
-}
-
-typedef int (*io_read_fn)(char *, size_t, char *, size_t, void *data);
-
-static int
-io_load(struct io *io, const char *separators,
- io_read_fn read_property, void *data)
-{
- char *name;
- int state = OK;
-
- while (state == OK && (name = io_get(io, '\n', TRUE))) {
- char *value;
- size_t namelen;
- size_t valuelen;
-
- name = chomp_string(name);
- namelen = strcspn(name, separators);
-
- if (name[namelen]) {
- name[namelen] = 0;
- value = chomp_string(name + namelen + 1);
- valuelen = strlen(value);
-
- } else {
- value = "";
- valuelen = 0;
- }
-
- state = read_property(name, namelen, value, valuelen, data);
- }
-
- if (state != ERR && io_error(io))
- state = ERR;
- io_done(io);
-
- return state;
-}
-
-static int
-io_run_load(const char **argv, const char *separators,
- io_read_fn read_property, void *data)
-{
- struct io io;
-
- if (!io_run(&io, IO_RD, NULL, argv))
- return ERR;
- return io_load(&io, separators, read_property, data);
-}
-
-
/*
* User requests
*/
REQ_(TOGGLE_DATE, "Toggle date display"), \
REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
+ REQ_(TOGGLE_GRAPHIC, "Toggle (line) graphics mode"), \
REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
REQ_(TOGGLE_SORT_ORDER, "Toggle ascending/descending sort order"), \
REQ_(TOGGLE_SORT_FIELD, "Toggle field to sort by"), \
*/
/* Option and state variables. */
+static enum graphic opt_line_graphics = GRAPHIC_DEFAULT;
static enum date opt_date = DATE_DEFAULT;
static enum author opt_author = AUTHOR_DEFAULT;
+static bool opt_rev_graph = TRUE;
static bool opt_line_number = FALSE;
-static bool opt_line_graphics = TRUE;
-static bool opt_rev_graph = FALSE;
static bool opt_show_refs = TRUE;
static bool opt_untracked_dirs_content = TRUE;
static int opt_num_interval = 5;
static const char **opt_diff_argv = NULL;
static const char **opt_rev_argv = NULL;
static const char **opt_file_argv = NULL;
+static const char **opt_blame_argv = NULL;
#define is_initial_commit() (!get_ref_head())
#define is_head_commit(rev) (!strcmp((rev), "HEAD") || (get_ref_head() && !strcmp(rev, get_ref_head()->id)))
LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(HELP_KEYMAP, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
LINE(HELP_GROUP, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
-LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
+LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
+LINE(GRAPH_LINE_0, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
+LINE(GRAPH_LINE_1, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
+LINE(GRAPH_LINE_2, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
+LINE(GRAPH_LINE_3, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
+LINE(GRAPH_LINE_4, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
+LINE(GRAPH_LINE_5, "", COLOR_WHITE, COLOR_DEFAULT, 0), \
+LINE(GRAPH_LINE_6, "", COLOR_RED, COLOR_DEFAULT, 0), \
+LINE(GRAPH_COMMIT, "", COLOR_BLUE, COLOR_DEFAULT, 0)
enum line_type {
#define LINE(type, line, fg, bg, attr) \
{ 'D', REQ_TOGGLE_DATE },
{ 'A', REQ_TOGGLE_AUTHOR },
{ 'g', REQ_TOGGLE_REV_GRAPH },
+ { '~', REQ_TOGGLE_GRAPHIC },
{ 'F', REQ_TOGGLE_REFS },
{ 'I', REQ_TOGGLE_SORT_ORDER },
{ 'i', REQ_TOGGLE_SORT_FIELD },
OPT_ERR_(NO_OPTION_VALUE, "No option value"), \
OPT_ERR_(NO_VALUE_ASSIGNED, "No value assigned"), \
OPT_ERR_(OBSOLETE_REQUEST_NAME, "Obsolete request name"), \
+ OPT_ERR_(OUT_OF_MEMORY, "Out of memory"), \
OPT_ERR_(TOO_MANY_OPTION_ARGUMENTS, "Too many option arguments"), \
OPT_ERR_(UNKNOWN_ATTRIBUTE, "Unknown attribute"), \
OPT_ERR_(UNKNOWN_COLOR, "Unknown color"), \
}
}
+static enum option_code
+parse_args(const char ***args, const char *argv[])
+{
+ if (*args == NULL && !argv_copy(args, argv))
+ return OPT_ERR_OUT_OF_MEMORY;
+ return OPT_OK;
+}
+
/* Wants: name = value */
static enum option_code
option_set_command(int argc, const char *argv[])
{
- if (argc != 3)
+ if (argc < 3)
return OPT_ERR_WRONG_NUMBER_OF_ARGUMENTS;
if (strcmp(argv[1], "="))
return OPT_ERR_NO_VALUE_ASSIGNED;
+ if (!strcmp(argv[0], "blame-options"))
+ return parse_args(&opt_blame_argv, argv + 2);
+
+ if (argc != 3)
+ return OPT_ERR_WRONG_NUMBER_OF_ARGUMENTS;
+
if (!strcmp(argv[0], "show-author"))
return parse_enum(&opt_author, argv[2], author_map);
return parse_bool(&opt_line_number, argv[2]);
if (!strcmp(argv[0], "line-graphics"))
- return parse_bool(&opt_line_graphics, argv[2]);
+ return parse_enum(&opt_line_graphics, argv[2], graphic_map);
if (!strcmp(argv[0], "line-number-interval"))
return parse_int(&opt_num_interval, argv[2], 1, 1024);
}
static bool
-draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
+draw_graphic(struct view *view, enum line_type type, const chtype graphic[], size_t size, bool separator)
{
size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
int max = view->width + view->yoffset - view->col;
@@ -2464,9 +1609,11 @@ draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t si
waddch(view->win, graphic[i]);
view->col += size;
- if (size < max && skip <= size)
- waddch(view->win, ' ');
- view->col++;
+ if (separator) {
+ if (size < max && skip <= size)
+ waddch(view->win, ' ');
+ view->col++;
+ }
return view->width + view->yoffset <= view->col;
}
view->col += draw_chars(view, LINE_LINE_NUMBER, text, max, TRUE);
else
view->col += draw_space(view, LINE_LINE_NUMBER, max, digits3);
- return draw_graphic(view, LINE_DEFAULT, &separator, 1);
+ return draw_graphic(view, LINE_DEFAULT, &separator, 1, TRUE);
}
static bool
foreach_displayed_view (view, i) {
if (!display_win[i]) {
- display_win[i] = newwin(view->height, 0, offset, 0);
+ display_win[i] = newwin(view->height, view->width, offset, 0);
if (!display_win[i])
die("Failed to create %s view", view->name);
scrollok(display_win[i], FALSE);
- display_title[i] = newwin(1, 0, offset + view->height, 0);
+ display_title[i] = newwin(1, view->width, offset + view->height, 0);
if (!display_title[i])
die("Failed to create title window");
TOGGLE_(LINENO, '.', "line numbers", &opt_line_number, NULL) \
TOGGLE_(DATE, 'D', "dates", &opt_date, date_map) \
TOGGLE_(AUTHOR, 'A', "author names", &opt_author, author_map) \
+ TOGGLE_(GRAPHIC, '~', "graphics", &opt_line_graphics, graphic_map) \
TOGGLE_(REV_GRAPH, 'g', "revision graph", &opt_rev_graph, NULL) \
TOGGLE_(REFS, 'F', "reference display", &opt_show_refs, NULL)
} vars[] = {
#define FORMAT_VAR(name, value, value_if_empty) \
{ name, STRING_SIZE(name), value, value_if_empty }
- FORMAT_VAR("%(directory)", opt_path, ""),
+ FORMAT_VAR("%(directory)", opt_path, "."),
FORMAT_VAR("%(file)", opt_file, ""),
FORMAT_VAR("%(ref)", opt_ref, "HEAD"),
FORMAT_VAR("%(head)", ref_head, ""),
@@ -3251,6 +2399,11 @@ format_argv(const char ***dst_argv, const char *src_argv[], bool replace, bool f
break;
continue;
+ } else if (!strcmp(arg, "%(blameargs)")) {
+ if (!argv_append_array(dst_argv, opt_blame_argv))
+ break;
+ continue;
+
} else if (!strcmp(arg, "%(revargs)") ||
(first && !strcmp(arg, "%(commit)"))) {
if (!argv_append_array(dst_argv, opt_rev_argv))
if (!view->pipe)
return TRUE;
- if (!io_can_read(view->pipe)) {
+ if (!io_can_read(view->pipe, FALSE)) {
if (view->lines == 0 && view_is_displayed(view)) {
time_t secs = time(NULL) - view->start_time;
case REQ_TOGGLE_LINENO:
case REQ_TOGGLE_DATE:
case REQ_TOGGLE_AUTHOR:
+ case REQ_TOGGLE_GRAPHIC:
case REQ_TOGGLE_REV_GRAPH:
case REQ_TOGGLE_REFS:
toggle_option(request);
{
if (!line) {
const char *blame_argv[] = {
- "git", "blame", "--incremental",
+ "git", "blame", "%(blameargs)", "--incremental",
*opt_ref ? opt_ref : "--incremental", "--", opt_file, NULL
};
* Revision graph
*/
-struct commit {
- char id[SIZEOF_REV]; /* SHA1 ID. */
- char title[128]; /* First line of the commit message. */
- const char *author; /* Author of the commit. */
- struct time time; /* Date from the author ident. */
- struct ref_list *refs; /* Repository references. */
- chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
- size_t graph_size; /* The width of the graph array. */
- bool has_parents; /* Rewritten --parents seen. */
-};
-
-/* Size of rev graph with no "padding" columns */
-#define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
-
-struct rev_graph {
- struct rev_graph *prev, *next, *parents;
- char rev[SIZEOF_REVITEMS][SIZEOF_REV];
- size_t size;
- struct commit *commit;
- size_t pos;
- unsigned int boundary:1;
+static const enum line_type graph_colors[] = {
+ LINE_GRAPH_LINE_0,
+ LINE_GRAPH_LINE_1,
+ LINE_GRAPH_LINE_2,
+ LINE_GRAPH_LINE_3,
+ LINE_GRAPH_LINE_4,
+ LINE_GRAPH_LINE_5,
+ LINE_GRAPH_LINE_6,
};
-/* Parents of the commit being visualized. */
-static struct rev_graph graph_parents[4];
-
-/* The current stack of revisions on the graph. */
-static struct rev_graph graph_stacks[4] = {
- { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
- { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
- { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
- { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
-};
-
-static inline bool
-graph_parent_is_merge(struct rev_graph *graph)
+static enum line_type get_graph_color(struct graph_symbol *symbol)
{
- return graph->parents->size > 1;
+ if (symbol->commit)
+ return LINE_GRAPH_COMMIT;
+ assert(symbol->color < ARRAY_SIZE(graph_colors));
+ return graph_colors[symbol->color];
}
-static inline void
-append_to_rev_graph(struct rev_graph *graph, chtype symbol)
+static bool
+draw_graph_utf8(struct view *view, struct graph_symbol *symbol, enum line_type color, bool first)
{
- struct commit *commit = graph->commit;
+ const char *chars = graph_symbol_to_utf8(symbol);
- if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
- commit->graph[commit->graph_size++] = symbol;
+ return draw_text(view, color, chars + !!first);
}
-static void
-clear_rev_graph(struct rev_graph *graph)
-{
- graph->boundary = 0;
- graph->size = graph->pos = 0;
- graph->commit = NULL;
- memset(graph->parents, 0, sizeof(*graph->parents));
-}
-
-static void
-done_rev_graph(struct rev_graph *graph)
+static bool
+draw_graph_ascii(struct view *view, struct graph_symbol *symbol, enum line_type color, bool first)
{
- if (graph_parent_is_merge(graph) &&
- graph->pos < graph->size - 1 &&
- graph->next->size == graph->size + graph->parents->size - 1) {
- size_t i = graph->pos + graph->parents->size - 1;
-
- graph->commit->graph_size = i * 2;
- while (i < graph->next->size - 1) {
- append_to_rev_graph(graph, ' ');
- append_to_rev_graph(graph, '\\');
- i++;
- }
- }
+ const char *chars = graph_symbol_to_ascii(symbol);
- clear_rev_graph(graph);
+ return draw_text(view, color, chars + !!first);
}
-static void
-push_rev_graph(struct rev_graph *graph, const char *parent)
+static bool
+draw_graph_chtype(struct view *view, struct graph_symbol *symbol, enum line_type color, bool first)
{
- int i;
-
- /* "Collapse" duplicate parents lines.
- *
- * FIXME: This needs to also update update the drawn graph but
- * for now it just serves as a method for pruning graph lines. */
- for (i = 0; i < graph->size; i++)
- if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
- return;
+ const chtype *chars = graph_symbol_to_chtype(symbol);
- if (graph->size < SIZEOF_REVITEMS) {
- string_copy_rev(graph->rev[graph->size++], parent);
- }
+ return draw_graphic(view, color, chars + !!first, 2 - !!first, FALSE);
}
-static chtype
-get_rev_graph_symbol(struct rev_graph *graph)
-{
- chtype symbol;
-
- if (graph->boundary)
- symbol = REVGRAPH_BOUND;
- else if (graph->parents->size == 0)
- symbol = REVGRAPH_INIT;
- else if (graph_parent_is_merge(graph))
- symbol = REVGRAPH_MERGE;
- else if (graph->pos >= graph->size)
- symbol = REVGRAPH_BRANCH;
- else
- symbol = REVGRAPH_COMMIT;
-
- return symbol;
-}
+typedef bool (*draw_graph_fn)(struct view *, struct graph_symbol *, enum line_type, bool);
-static void
-draw_rev_graph(struct rev_graph *graph)
+static bool draw_graph(struct view *view, struct graph_canvas *canvas)
{
- struct rev_filler {
- chtype separator, line;
+ static const draw_graph_fn fns[] = {
+ draw_graph_ascii,
+ draw_graph_chtype,
+ draw_graph_utf8
};
- enum { DEFAULT, RSHARP, RDIAG, LDIAG };
- static struct rev_filler fillers[] = {
- { ' ', '|' },
- { '`', '.' },
- { '\'', ' ' },
- { '/', ' ' },
- };
- chtype symbol = get_rev_graph_symbol(graph);
- struct rev_filler *filler;
- size_t i;
-
- fillers[DEFAULT].line = opt_line_graphics ? ACS_VLINE : '|';
- filler = &fillers[DEFAULT];
-
- for (i = 0; i < graph->pos; i++) {
- append_to_rev_graph(graph, filler->line);
- if (graph_parent_is_merge(graph->prev) &&
- graph->prev->pos == i)
- filler = &fillers[RSHARP];
-
- append_to_rev_graph(graph, filler->separator);
- }
-
- /* Place the symbol for this revision. */
- append_to_rev_graph(graph, symbol);
-
- if (graph->prev->size > graph->size)
- filler = &fillers[RDIAG];
- else
- filler = &fillers[DEFAULT];
-
- i++;
-
- for (; i < graph->size; i++) {
- append_to_rev_graph(graph, filler->separator);
- append_to_rev_graph(graph, filler->line);
- if (graph_parent_is_merge(graph->prev) &&
- i < graph->prev->pos + graph->parents->size)
- filler = &fillers[RSHARP];
- if (graph->prev->size > graph->size)
- filler = &fillers[LDIAG];
- }
-
- if (graph->prev->size > graph->size) {
- append_to_rev_graph(graph, filler->separator);
- if (filler->line != ' ')
- append_to_rev_graph(graph, filler->line);
- }
-}
-
-/* Prepare the next rev graph */
-static void
-prepare_rev_graph(struct rev_graph *graph)
-{
- size_t i;
+ draw_graph_fn fn = fns[opt_line_graphics];
+ int i;
- /* First, traverse all lines of revisions up to the active one. */
- for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
- if (!strcmp(graph->rev[graph->pos], graph->commit->id))
- break;
+ for (i = 0; i < canvas->size; i++) {
+ struct graph_symbol *symbol = &canvas->symbols[i];
+ enum line_type color = get_graph_color(symbol);
- push_rev_graph(graph->next, graph->rev[graph->pos]);
+ if (fn(view, symbol, color, i == 0))
+ return TRUE;
}
- /* Interleave the new revision parent(s). */
- for (i = 0; !graph->boundary && i < graph->parents->size; i++)
- push_rev_graph(graph->next, graph->parents->rev[i]);
-
- /* Lastly, put any remaining revisions. */
- for (i = graph->pos + 1; i < graph->size; i++)
- push_rev_graph(graph->next, graph->rev[i]);
+ return draw_text(view, LINE_MAIN_REVGRAPH, " ");
}
-static void
-update_rev_graph(struct view *view, struct rev_graph *graph)
-{
- /* If this is the finalizing update ... */
- if (graph->commit)
- prepare_rev_graph(graph);
-
- /* Graph visualization needs a one rev look-ahead,
- * so the first update doesn't visualize anything. */
- if (!graph->prev->commit)
- return;
-
- if (view->lines > 2)
- view->line[view->lines - 3].dirty = 1;
- if (view->lines > 1)
- view->line[view->lines - 2].dirty = 1;
- draw_rev_graph(graph->prev);
- done_rev_graph(graph->prev->prev);
-}
-
-
/*
* Main view backend
*/
+struct commit {
+ char id[SIZEOF_REV]; /* SHA1 ID. */
+ char title[128]; /* First line of the commit message. */
+ const char *author; /* Author of the commit. */
+ struct time time; /* Date from the author ident. */
+ struct ref_list *refs; /* Repository references. */
+ struct graph_canvas graph; /* Ancestry chain graphics. */
+};
+
static const char *main_argv[SIZEOF_ARG] = {
"git", "log", "--no-color", "--pretty=raw", "--parents",
"--topo-order", "%(diffargs)", "%(revargs)",
if (opt_author && draw_author(view, commit->author))
return TRUE;
- if (opt_rev_graph && commit->graph_size &&
- draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
+ if (opt_rev_graph && draw_graph(view, &commit->graph))
return TRUE;
if (opt_show_refs && commit->refs) {
static bool
main_read(struct view *view, char *line)
{
- static struct rev_graph *graph = graph_stacks;
+ static struct graph graph;
enum line_type type;
struct commit *commit;
if (!line) {
- int i;
-
if (!view->lines && !view->prev)
die("No revisions match the given arguments.");
if (view->lines > 0) {
if (!commit->author) {
view->lines--;
free(commit);
- graph->commit = NULL;
}
}
- update_rev_graph(view, graph);
- for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
- clear_rev_graph(&graph_stacks[i]);
+ done_graph(&graph);
return TRUE;
}
type = get_line_type(line);
if (type == LINE_COMMIT) {
+ bool is_boundary;
+
commit = calloc(1, sizeof(struct commit));
if (!commit)
return FALSE;
line += STRING_SIZE("commit ");
- if (*line == '-') {
- graph->boundary = 1;
+ is_boundary = *line == '-';
+ if (is_boundary)
line++;
- }
string_copy_rev(commit->id, line);
commit->refs = get_ref_list(commit->id);
- graph->commit = commit;
add_line_data(view, commit, LINE_MAIN_COMMIT);
-
- while ((line = strchr(line, ' '))) {
- line++;
- push_rev_graph(graph->parents, line);
- commit->has_parents = TRUE;
- }
+ graph_add_commit(&graph, &commit->graph, commit->id, line, is_boundary);
return TRUE;
}
switch (type) {
case LINE_PARENT:
- if (commit->has_parents)
- break;
- push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
+ if (!graph.has_parents)
+ graph_add_parent(&graph, line + STRING_SIZE("parent "));
break;
case LINE_AUTHOR:
parse_author_line(line + STRING_SIZE("author "),
&commit->author, &commit->time);
- update_rev_graph(view, graph);
- graph = graph->next;
+ graph_render_parents(&graph);
break;
default:
init_colors();
getmaxyx(stdscr, y, x);
- status_win = newwin(1, 0, y - 1, 0);
+ status_win = newwin(1, x, y - 1, 0);
if (!status_win)
die("Failed to create status window");
"\n"
"Usage: tig [options] [revs] [--] [paths]\n"
" or: tig show [options] [revs] [--] [paths]\n"
-" or: tig blame [rev] path\n"
+" or: tig blame [options] [rev] [--] path\n"
" or: tig status\n"
" or: tig < [git command output]\n"
"\n"
return REQ_VIEW_STATUS;
} else if (!strcmp(subcommand, "blame")) {
- if (argc <= 2 || argc > 4)
+ filter_rev_parse(&opt_file_argv, "--no-revs", "--no-flags", argv + 2);
+ filter_rev_parse(&opt_blame_argv, "--no-revs", "--flags", argv + 2);
+ filter_rev_parse(&opt_rev_argv, "--symbolic", "--revs-only", argv + 2);
+
+ if (!opt_file_argv || opt_file_argv[1] || (opt_rev_argv && opt_rev_argv[1]))
die("invalid number of options to blame\n\n%s", usage);
- i = 2;
- if (argc == 4) {
- string_ncopy(opt_ref, argv[i], strlen(argv[i]));
- i++;
+ if (opt_rev_argv) {
+ string_ncopy(opt_ref, opt_rev_argv[0], strlen(opt_rev_argv[0]));
}
- string_ncopy(opt_file, argv[i], strlen(argv[i]));
+ string_ncopy(opt_file, opt_file_argv[0], strlen(opt_file_argv[0]));
return REQ_VIEW_BLAME;
} else if (!strcmp(subcommand, "show")) {