subsurface/core/load-git.c
Berthold Stoeger 9c70261c0e cleanup: move declaration of utc_mk* functions to new subsurface-time.h header
No point in slurping in all of dive.h for translation units that only
want to do some time manipulation without ever touching a dive.

Don't call the header "time.h", because we don't want to end up in a
confusion with the system header of the same name.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2020-05-01 09:42:31 -07:00

1763 lines
49 KiB
C

// SPDX-License-Identifier: GPL-2.0
#include "ssrf.h"
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <git2.h>
#include <libdivecomputer/parser.h>
#include "gettext.h"
#include "dive.h"
#include "divesite.h"
#include "errorhelper.h"
#include "trip.h"
#include "subsurface-string.h"
#include "device.h"
#include "membuffer.h"
#include "git-access.h"
#include "picture.h"
#include "qthelper.h"
#include "tag.h"
#include "subsurface-time.h"
const char *saved_git_id = NULL;
struct git_parser_state {
git_repository *repo;
struct divecomputer *active_dc;
struct dive *active_dive;
dive_trip_t *active_trip;
struct picture *active_pic;
struct dive_site *active_site;
struct dive_table *table;
struct trip_table *trips;
struct dive_site_table *sites;
int o2pressure_sensor;
};
struct keyword_action {
const char *keyword;
void (*fn)(char *, struct membuffer *, struct git_parser_state *);
};
#define ARRAY_SIZE(array) (sizeof(array)/sizeof(array[0]))
static git_blob *git_tree_entry_blob(git_repository *repo, const git_tree_entry *entry);
static temperature_t get_temperature(const char *line)
{
temperature_t t;
t.mkelvin = C_to_mkelvin(ascii_strtod(line, NULL));
return t;
}
static depth_t get_depth(const char *line)
{
depth_t d;
d.mm = lrint(1000 * ascii_strtod(line, NULL));
return d;
}
static volume_t get_volume(const char *line)
{
volume_t v;
v.mliter = lrint(1000 * ascii_strtod(line, NULL));
return v;
}
static weight_t get_weight(const char *line)
{
weight_t w;
w.grams = lrint(1000 * ascii_strtod(line, NULL));
return w;
}
static pressure_t get_airpressure(const char *line)
{
pressure_t p;
p.mbar = lrint(ascii_strtod(line, NULL));
return p;
}
static pressure_t get_pressure(const char *line)
{
pressure_t p;
p.mbar = lrint(1000 * ascii_strtod(line, NULL));
return p;
}
static int get_salinity(const char *line)
{
return lrint(10 * ascii_strtod(line, NULL));
}
static fraction_t get_fraction(const char *line)
{
fraction_t f;
f.permille = lrint(10 * ascii_strtod(line, NULL));
return f;
}
static void update_date(timestamp_t *when, const char *line)
{
unsigned yyyy, mm, dd;
struct tm tm;
if (sscanf(line, "%04u-%02u-%02u", &yyyy, &mm, &dd) != 3)
return;
utc_mkdate(*when, &tm);
tm.tm_year = yyyy;
tm.tm_mon = mm - 1;
tm.tm_mday = dd;
*when = utc_mktime(&tm);
}
static void update_time(timestamp_t *when, const char *line)
{
unsigned h, m, s = 0;
struct tm tm;
if (sscanf(line, "%02u:%02u:%02u", &h, &m, &s) < 2)
return;
utc_mkdate(*when, &tm);
tm.tm_hour = h;
tm.tm_min = m;
tm.tm_sec = s;
*when = utc_mktime(&tm);
}
static duration_t get_duration(const char *line)
{
int m = 0, s = 0;
duration_t d;
sscanf(line, "%d:%d", &m, &s);
d.seconds = m * 60 + s;
return d;
}
static enum divemode_t get_dctype(const char *line)
{
for (enum divemode_t i = 0; i < NUM_DIVEMODE; i++) {
if (strcmp(line, divemode_text[i]) == 0)
return i;
}
return 0;
}
static int get_index(const char *line)
{ return atoi(line); }
static int get_hex(const char *line)
{ return strtoul(line, NULL, 16); }
static void parse_dive_gps(char *line, struct membuffer *str, struct git_parser_state *state)
{
UNUSED(str);
location_t location;
struct dive_site *ds = get_dive_site_for_dive(state->active_dive);
parse_location(line, &location);
if (!ds) {
ds = get_dive_site_by_gps(&location, state->sites);
if (!ds)
ds = create_dive_site_with_gps("", &location, &dive_site_table);
add_dive_to_dive_site(state->active_dive, ds);
} else {
if (dive_site_has_gps_location(ds) && !same_location(&ds->location, &location)) {
char *coords = printGPSCoordsC(&location);
// we have a dive site that already has GPS coordinates
ds->notes = add_to_string(ds->notes, translate("gettextFromC", "multiple GPS locations for this dive site; also %s\n"), coords);
free(coords);
}
ds->location = location;
}
}
static void parse_dive_location(char *line, struct membuffer *str, struct git_parser_state *state)
{
UNUSED(line);
char *name = detach_cstring(str);
struct dive_site *ds = get_dive_site_for_dive(state->active_dive);
if (!ds) {
ds = get_dive_site_by_name(name, &dive_site_table);
if (!ds)
ds = create_dive_site(name, &dive_site_table);
add_dive_to_dive_site(state->active_dive, ds);
} else {
// we already had a dive site linked to the dive
if (empty_string(ds->name)) {
ds->name = strdup(name);
} else {
// and that dive site had a name. that's weird - if our name is different, add it to the notes
if (!same_string(ds->name, name))
ds->notes = add_to_string(ds->notes, translate("gettextFromC", "additional name for site: %s\n"), name);
}
}
free(name);
}
static void parse_dive_divemaster(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(line); state->active_dive->divemaster = detach_cstring(str); }
static void parse_dive_buddy(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(line); state->active_dive->buddy = detach_cstring(str); }
static void parse_dive_suit(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(line); state->active_dive->suit = detach_cstring(str); }
static void parse_dive_notes(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(line); state->active_dive->notes = detach_cstring(str); }
static void parse_dive_divesiteid(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); add_dive_to_dive_site(state->active_dive, get_dive_site_by_uuid(get_hex(line), &dive_site_table)); }
/*
* We can have multiple tags in the membuffer. They are separated by
* NUL bytes.
*/
static void parse_dive_tags(char *line, struct membuffer *str, struct git_parser_state *state)
{
UNUSED(line);
const char *tag;
int len = str->len;
if (!len)
return;
/* Make sure there is a NUL at the end too */
tag = mb_cstring(str);
for (;;) {
int taglen = strlen(tag);
if (taglen)
taglist_add_tag(&state->active_dive->tag_list, tag);
len -= taglen;
if (!len)
return;
tag += taglen + 1;
len--;
}
}
static void parse_dive_airtemp(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dive->airtemp = get_temperature(line); }
static void parse_dive_watertemp(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dive->watertemp = get_temperature(line); }
static void parse_dive_airpressure(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dive->surface_pressure = get_airpressure(line); }
static void parse_dive_duration(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dive->duration = get_duration(line); }
static void parse_dive_rating(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dive->rating = get_index(line); }
static void parse_dive_visibility(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dive->visibility = get_index(line); }
static void parse_dive_wavesize(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dive->wavesize = get_index(line); }
static void parse_dive_current(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dive->current = get_index(line); }
static void parse_dive_surge(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dive->surge = get_index(line); }
static void parse_dive_chill(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dive->chill = get_index(line); }
static void parse_dive_watersalinity(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dive->user_salinity = get_salinity(line); }
static void parse_dive_notrip(char *line, struct membuffer *str, struct git_parser_state *state)
{
UNUSED(str);
UNUSED(line);
state->active_dive->notrip = true;
}
static void parse_dive_invalid(char *line, struct membuffer *str, struct git_parser_state *state)
{
UNUSED(str);
UNUSED(line);
state->active_dive->invalid = true;
}
static void parse_site_description(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(line); state->active_site->description = detach_cstring(str); }
static void parse_site_name(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(line); state->active_site->name = detach_cstring(str); }
static void parse_site_notes(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(line); state->active_site->notes = detach_cstring(str); }
static void parse_site_gps(char *line, struct membuffer *str, struct git_parser_state *state)
{
UNUSED(str);
parse_location(line, &state->active_site->location);
}
static void parse_site_geo(char *line, struct membuffer *str, struct git_parser_state *state)
{
if (state->active_site->taxonomy.category == NULL)
state->active_site->taxonomy.category = alloc_taxonomy();
int nr = state->active_site->taxonomy.nr;
if (nr < TC_NR_CATEGORIES) {
struct taxonomy *t = &state->active_site->taxonomy.category[nr];
t->value = detach_cstring(str);
sscanf(line, "cat %d origin %d \"", &t->category, (int *)&t->origin);
state->active_site->taxonomy.nr++;
}
}
static char *remove_from_front(struct membuffer *str, int len)
{
char *prefix;
if (len >= str->len)
return detach_cstring(str);
/* memdup() - oh well */
prefix = malloc(len);
if (!prefix) {
report_error("git-load: out of memory");
return NULL;
}
memcpy(prefix, str->buffer, len);
str->len -= len;
memmove(str->buffer, str->buffer+len, str->len);
return prefix;
}
static char *pop_cstring(struct membuffer *str, const char *err)
{
int len;
if (!str) {
report_error("git-load: string marker without any strings ('%s')", err);
return strdup("");
}
if (!str->len) {
report_error("git-load: string marker after running out of strings ('%s')", err);
return strdup("");
}
len = strlen(mb_cstring(str)) + 1;
return remove_from_front(str, len);
}
/* Parse key=val parts of samples and cylinders etc */
static char *parse_keyvalue_entry(void (*fn)(void *, const char *, const char *), void *fndata, char *line, struct membuffer *str)
{
char *key = line, *val, c;
while ((c = *line) != 0) {
if (isspace(c) || c == '=')
break;
line++;
}
if (c == '=')
*line++ = 0;
val = line;
/* Did we get a string? Take it from the list of strings */
if (*val == '"')
val = pop_cstring(str, key);
while ((c = *line) != 0) {
if (isspace(c))
break;
line++;
}
if (c)
*line++ = 0;
fn(fndata, key, val);
return line;
}
static void parse_cylinder_keyvalue(void *_cylinder, const char *key, const char *value)
{
cylinder_t *cylinder = _cylinder;
if (!strcmp(key, "vol")) {
cylinder->type.size = get_volume(value);
return;
}
if (!strcmp(key, "workpressure")) {
cylinder->type.workingpressure = get_pressure(value);
return;
}
if (!strcmp(key, "description")) {
cylinder->type.description = value;
return;
}
if (!strcmp(key, "o2")) {
cylinder->gasmix.o2 = get_fraction(value);
return;
}
if (!strcmp(key, "he")) {
cylinder->gasmix.he = get_fraction(value);
return;
}
if (!strcmp(key, "start")) {
cylinder->start = get_pressure(value);
return;
}
if (!strcmp(key, "end")) {
cylinder->end = get_pressure(value);
return;
}
if (!strcmp(key, "use")) {
cylinder->cylinder_use = cylinderuse_from_text(value);
return;
}
if (!strcmp(key, "depth")) {
cylinder->depth = get_depth(value);
return;
}
if ((*key == 'm') && strlen(value) == 0) {
/* found a bogus key/value pair in the cylinder, consisting
* of a lonely "m" or m<single quote> without value. This
* is caused by commit 46004c39e26 and fixed in 48d9c8eb6eb0 and
* b984fb98c38e4. See referenced commits for more info.
*
* Just ignore this key/value pair. No processing is broken
* due to this, as the git storage stores only metric SI type data.
* In fact, the m unit is superfluous anyway.
*/
return;
}
report_error("Unknown cylinder key/value pair (%s/%s)", key, value);
}
static void parse_dive_cylinder(char *line, struct membuffer *str, struct git_parser_state *state)
{
cylinder_t cylinder = empty_cylinder;
for (;;) {
char c;
while (isspace(c = *line))
line++;
if (!c)
break;
line = parse_keyvalue_entry(parse_cylinder_keyvalue, &cylinder, line, str);
}
if (cylinder.cylinder_use == OXYGEN)
state->o2pressure_sensor = state->active_dive->cylinders.nr;
add_cylinder(&state->active_dive->cylinders, state->active_dive->cylinders.nr, cylinder);
}
static void parse_weightsystem_keyvalue(void *_ws, const char *key, const char *value)
{
weightsystem_t *ws = _ws;
if (!strcmp(key, "weight")) {
ws->weight = get_weight(value);
return;
}
if (!strcmp(key, "description")) {
ws->description = value;
return;
}
report_error("Unknown weightsystem key/value pair (%s/%s)", key, value);
}
static void parse_dive_weightsystem(char *line, struct membuffer *str, struct git_parser_state *state)
{
weightsystem_t ws = empty_weightsystem;
for (;;) {
char c;
while (isspace(c = *line))
line++;
if (!c)
break;
line = parse_keyvalue_entry(parse_weightsystem_keyvalue, &ws, line, str);
}
add_to_weightsystem_table(&state->active_dive->weightsystems, state->active_dive->weightsystems.nr, ws);
}
static int match_action(char *line, struct membuffer *str, void *data,
struct keyword_action *action, unsigned nr_action)
{
char *p = line, c;
unsigned low, high;
while ((c = *p) >= 'a' && c <= 'z') // skip over 1st word
p++; // Extract the second word from the line:
if (p == line)
return -1;
switch (c) {
case 0: // if 2nd word is C-terminated
break;
case ' ': // =end of 2nd word?
*p++ = 0; // then C-terminate that word
break;
default:
return -1;
}
/* Standard binary search in a table */
low = 0;
high = nr_action;
while (low < high) {
unsigned mid = (low + high)/2;
struct keyword_action *a = action + mid;
int cmp = strcmp(line, a->keyword);
if (!cmp) { // attribute found:
a->fn(p, str, data); // Execute appropriate function,
return 0; // .. passing 2n word from above
} // (p) as a function argument.
if (cmp < 0)
high = mid;
else
low = mid + 1;
}
report_error("Unmatched action '%s'", line);
return -1;
}
/* FIXME! We should do the array thing here too. */
static void parse_sample_keyvalue(void *_sample, const char *key, const char *value)
{
struct sample *sample = _sample;
if (!strcmp(key, "sensor")) {
sample->sensor[0] = atoi(value);
return;
}
if (!strcmp(key, "ndl")) {
sample->ndl = get_duration(value);
return;
}
if (!strcmp(key, "tts")) {
sample->tts = get_duration(value);
return;
}
if (!strcmp(key, "in_deco")) {
sample->in_deco = atoi(value);
return;
}
if (!strcmp(key, "stoptime")) {
sample->stoptime = get_duration(value);
return;
}
if (!strcmp(key, "stopdepth")) {
sample->stopdepth = get_depth(value);
return;
}
if (!strcmp(key, "cns")) {
sample->cns = atoi(value);
return;
}
if (!strcmp(key, "rbt")) {
sample->rbt = get_duration(value);
return;
}
if (!strcmp(key, "po2")) {
pressure_t p = get_pressure(value);
sample->setpoint.mbar = p.mbar;
return;
}
if (!strcmp(key, "sensor1")) {
pressure_t p = get_pressure(value);
sample->o2sensor[0].mbar = p.mbar;
return;
}
if (!strcmp(key, "sensor2")) {
pressure_t p = get_pressure(value);
sample->o2sensor[1].mbar = p.mbar;
return;
}
if (!strcmp(key, "sensor3")) {
pressure_t p = get_pressure(value);
sample->o2sensor[2].mbar = p.mbar;
return;
}
if (!strcmp(key, "o2pressure")) {
pressure_t p = get_pressure(value);
sample->pressure[1].mbar = p.mbar;
return;
}
if (!strcmp(key, "heartbeat")) {
sample->heartbeat = atoi(value);
return;
}
if (!strcmp(key, "bearing")) {
sample->bearing.degrees = atoi(value);
return;
}
report_error("Unexpected sample key/value pair (%s/%s)", key, value);
}
static char *parse_sample_unit(struct sample *sample, double val, char *unit)
{
unsigned int sensor;
char *end = unit, c;
/* Skip over the unit */
while ((c = *end) != 0) {
if (isspace(c)) {
*end++ = 0;
break;
}
end++;
}
/* The units are "°C", "m" or "bar", so let's just look at the first character */
/* The cylinder pressure may also be of the form '123.0bar:4' to indicate sensor */
switch (*unit) {
case 'm':
sample->depth.mm = lrint(1000 * val);
break;
case 'b':
sensor = sample->sensor[0];
if (end > unit + 4 && unit[3] == ':')
sensor = atoi(unit + 4);
add_sample_pressure(sample, sensor, lrint(1000 * val));
break;
default:
sample->temperature.mkelvin = C_to_mkelvin(val);
break;
}
return end;
}
/*
* By default the sample data does not change unless the
* save-file gives an explicit new value. So we copy the
* data from the previous sample if one exists, and then
* the parsing will update it as necessary.
*
* There are a few exceptions, like the sample pressure:
* missing sample pressure doesn't mean "same as last
* time", but "interpolate". We clear those ones
* explicitly.
*
* NOTE! We default sensor use to 0, 1 respetively for
* the two sensors, but for CCR dives with explicit
* OXYGEN bottles we set the secondary sensor to that.
* Then the primary sensor will be either the first
* or the second cylinder depending on what isn't an
* oxygen cylinder.
*/
static struct sample *new_sample(struct git_parser_state *state)
{
struct sample *sample = prepare_sample(state->active_dc);
if (sample != state->active_dc->sample) {
memcpy(sample, sample - 1, sizeof(struct sample));
sample->pressure[0].mbar = 0;
sample->pressure[1].mbar = 0;
} else {
sample->sensor[0] = !state->o2pressure_sensor;
sample->sensor[1] = state->o2pressure_sensor;
}
return sample;
}
static void sample_parser(char *line, struct git_parser_state *state)
{
int m, s = 0;
struct sample *sample = new_sample(state);
m = strtol(line, &line, 10);
if (*line == ':')
s = strtol(line + 1, &line, 10);
sample->time.seconds = m * 60 + s;
for (;;) {
char c;
while (isspace(c = *line))
line++;
if (!c)
break;
/* Less common sample entries have a name */
if (c >= 'a' && c <= 'z') {
line = parse_keyvalue_entry(parse_sample_keyvalue, sample, line, NULL);
} else {
const char *end;
double val = ascii_strtod(line, &end);
if (end == line) {
report_error("Odd sample data: %s", line);
break;
}
line = (char *)end;
line = parse_sample_unit(sample, val, line);
}
}
finish_sample(state->active_dc);
}
static void parse_dc_airtemp(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dc->airtemp = get_temperature(line); }
static void parse_dc_date(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); update_date(&state->active_dc->when, line); }
static void parse_dc_deviceid(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); set_dc_deviceid(state->active_dc, get_hex(line)); }
static void parse_dc_diveid(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dc->diveid = get_hex(line); }
static void parse_dc_duration(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dc->duration = get_duration(line); }
static void parse_dc_dctype(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dc->divemode = get_dctype(line); }
static void parse_dc_lastmanualtime(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dc->last_manual_time = get_duration(line); }
static void parse_dc_maxdepth(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dc->maxdepth = get_depth(line); }
static void parse_dc_meandepth(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dc->meandepth = get_depth(line); }
static void parse_dc_model(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(line); state->active_dc->model = detach_cstring(str); }
static void parse_dc_numberofoxygensensors(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dc->no_o2sensors = get_index(line); }
static void parse_dc_surfacepressure(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dc->surface_pressure = get_pressure(line); }
static void parse_dc_salinity(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dc->salinity = get_salinity(line); }
static void parse_dc_surfacetime(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dc->surfacetime = get_duration(line); }
static void parse_dc_time(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); update_time(&state->active_dc->when, line); }
static void parse_dc_watertemp(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(str); state->active_dc->watertemp = get_temperature(line); }
static int get_divemode(const char *divemodestring) {
for (int i = 0; i < NUM_DIVEMODE; i++) {
if (!strcmp(divemodestring, divemode_text[i]))
return i;
}
return 0;
}
/*
* A 'struct event' has a variable-sized name allocation at the
* end. So when we parse the event data, we can't fill in the
* event directly, because we don't know how to allocate one
* before we have the size of the name.
*
* Thus this initial 'parse_event' with a separate name pointer.
*/
struct parse_event {
const char *name;
int has_divemode;
struct event ev;
};
static void parse_event_keyvalue(void *_parse, const char *key, const char *value)
{
struct parse_event *parse = _parse;
int val = atoi(value);
if (!strcmp(key, "type")) {
parse->ev.type = val;
} else if (!strcmp(key, "flags")) {
parse->ev.flags = val;
} else if (!strcmp(key, "value")) {
parse->ev.value = val;
} else if (!strcmp(key, "name")) {
parse->name = value;
} else if (!strcmp(key,"divemode")) {
parse->ev.value = get_divemode(value);
parse->has_divemode = 1;
} else if (!strcmp(key, "cylinder")) {
/* NOTE! We add one here as a marker that "yes, we got a cylinder index" */
parse->ev.gas.index = 1 + get_index(value);
} else if (!strcmp(key, "o2")) {
parse->ev.gas.mix.o2 = get_fraction(value);
} else if (!strcmp(key, "he")) {
parse->ev.gas.mix.he = get_fraction(value);
} else
report_error("Unexpected event key/value pair (%s/%s)", key, value);
}
/* keyvalue "key" "value"
* so we have two strings (possibly empty) in the membuffer, separated by a '\0' */
static void parse_dc_keyvalue(char *line, struct membuffer *str, struct git_parser_state *state)
{
const char *key, *value;
// Let's make sure we have two strings...
int string_counter = 0;
while(*line) {
if (*line == '"')
string_counter++;
line++;
}
if (string_counter != 2)
return;
// stupidly the second string in the membuffer isn't NUL terminated;
// asking for a cstring fixes that; interestingly enough, given that there are two
// strings in the mb, the next command at the same time assigns a pointer to the
// first string to 'key' and NUL terminates the second string (which then goes to 'value')
key = mb_cstring(str);
value = key + strlen(key) + 1;
add_extra_data(state->active_dc, key, value);
}
static void parse_dc_event(char *line, struct membuffer *str, struct git_parser_state *state)
{
int m, s = 0;
struct parse_event p = { NULL, };
struct event *ev;
m = strtol(line, &line, 10);
if (*line == ':')
s = strtol(line + 1, &line, 10);
p.ev.time.seconds = m * 60 + s;
for (;;) {
char c;
while (isspace(c = *line))
line++;
if (!c)
break;
line = parse_keyvalue_entry(parse_event_keyvalue, &p, line, str);
}
/* Only modechange events should have a divemode - fix up any corrupted names */
if (p.has_divemode && strcmp(p.name, "modechange"))
p.name = "modechange";
ev = add_event(state->active_dc, p.ev.time.seconds, p.ev.type, p.ev.flags, p.ev.value, p.name);
/*
* Older logs might mark the dive to be CCR by having an "SP change" event at time 0:00.
* Better to mark them being CCR on import so no need for special treatments elsewhere on
* the code.
*/
if (ev && p.ev.time.seconds == 0 && p.ev.type == SAMPLE_EVENT_PO2 && p.ev.value && state->active_dc->divemode==OC)
state->active_dc->divemode = CCR;
if (ev && event_is_gaschange(ev)) {
/*
* We subtract one here because "0" is "no index",
* and the parsing will add one for actual cylinder
* index data (see parse_event_keyvalue)
*/
ev->gas.index = p.ev.gas.index-1;
if (p.ev.gas.mix.o2.permille || p.ev.gas.mix.he.permille)
ev->gas.mix = p.ev.gas.mix;
}
}
/* Not needed anymore - trip date calculated implicitly from first dive */
static void parse_trip_date(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(line); UNUSED(str); UNUSED(state); }
/* Not needed anymore - trip date calculated implicitly from first dive */
static void parse_trip_time(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(line); UNUSED(str); UNUSED(state); }
static void parse_trip_location(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(line); state->active_trip->location = detach_cstring(str); }
static void parse_trip_notes(char *line, struct membuffer *str, struct git_parser_state *state)
{ UNUSED(line); state->active_trip->notes = detach_cstring(str); }
static void parse_settings_autogroup(char *line, struct membuffer *str, struct git_parser_state *_unused)
{
UNUSED(line);
UNUSED(str);
UNUSED(_unused);
set_autogroup(true);
}
static void parse_settings_units(char *line, struct membuffer *str, struct git_parser_state *unused)
{
UNUSED(str);
UNUSED(unused);
if (line)
set_informational_units(line);
}
static void parse_settings_userid(char *line, struct membuffer *str, struct git_parser_state *_unused)
/* Keep this despite removal of the webservice as there are legacy logbook around
* that still have this defined.
*/
{
UNUSED(str);
UNUSED(_unused);
UNUSED(line);
}
static void parse_settings_prefs(char *line, struct membuffer *str, struct git_parser_state *unused)
{
UNUSED(str);
UNUSED(unused);
if (line)
set_git_prefs(line);
}
/*
* Our versioning is a joke right now, but this is more of an example of what we
* *can* do some day. And if we do change the version, this warning will show if
* you read with a version of subsurface that doesn't know about it.
* We MUST keep this in sync with the XML version (so we can report a consistent
* minimum datafile version)
*/
static void parse_settings_version(char *line, struct membuffer *str, struct git_parser_state *_unused)
{
UNUSED(str);
UNUSED(_unused);
int version = atoi(line);
report_datafile_version(version);
if (version > DATAFORMAT_VERSION)
report_error("Git save file version %d is newer than version %d I know about", version, DATAFORMAT_VERSION);
}
/* The string in the membuffer is the version string of subsurface that saved things, just FYI */
static void parse_settings_subsurface(char *line, struct membuffer *str, struct git_parser_state *_unused)
{
UNUSED(line);
UNUSED(str);
UNUSED(_unused);
}
struct divecomputerid {
const char *model;
const char *nickname;
const char *firmware;
const char *serial;
unsigned int deviceid;
};
static void parse_divecomputerid_keyvalue(void *_cid, const char *key, const char *value)
{
struct divecomputerid *cid = _cid;
if (!strcmp(key, "deviceid")) {
cid->deviceid = get_hex(value);
return;
}
if (!strcmp(key, "serial")) {
cid->serial = value;
return;
}
if (!strcmp(key, "firmware")) {
cid->firmware = value;
return;
}
if (!strcmp(key, "nickname")) {
cid->nickname = value;
return;
}
report_error("Unknown divecomputerid key/value pair (%s/%s)", key, value);
}
/*
* The 'divecomputerid' is a bit harder to parse than some other things, because
* it can have multiple strings (but see the tag parsing for another example of
* that) in addition to the non-string entries.
*/
static void parse_settings_divecomputerid(char *line, struct membuffer *str, struct git_parser_state *_unused)
{
UNUSED(_unused);
struct divecomputerid id = { pop_cstring(str, line) };
/* Skip the '"' that stood for the model string */
line++;
/* Parse the rest of the entries */
for (;;) {
char c;
while (isspace(c = *line))
line++;
if (!c)
break;
line = parse_keyvalue_entry(parse_divecomputerid_keyvalue, &id, line, str);
}
create_device_node(id.model, id.deviceid, id.serial, id.firmware, id.nickname);
}
static void parse_picture_filename(char *line, struct membuffer *str, struct git_parser_state *state)
{
UNUSED(line);
state->active_pic->filename = detach_cstring(str);
}
static void parse_picture_gps(char *line, struct membuffer *str, struct git_parser_state *state)
{
UNUSED(str);
parse_location(line, &state->active_pic->location);
}
static void parse_picture_hash(char *line, struct membuffer *str, struct git_parser_state *state)
{
// we no longer use hashes to identify pictures, but we shouldn't
// remove this parser lest users get an ugly red warning when
// opening old git repos
UNUSED(line);
UNUSED(state);
UNUSED(str);
}
/* These need to be sorted! */
struct keyword_action dc_action[] = {
#undef D
#define D(x) { #x, parse_dc_ ## x }
D(airtemp), D(date), D(dctype), D(deviceid), D(diveid), D(duration),
D(event), D(keyvalue), D(lastmanualtime), D(maxdepth), D(meandepth), D(model), D(numberofoxygensensors),
D(salinity), D(surfacepressure), D(surfacetime), D(time), D(watertemp)
};
/* Sample lines start with a space or a number */
static void divecomputer_parser(char *line, struct membuffer *str, struct git_parser_state *state)
{
char c = *line;
if (c < 'a' || c > 'z')
sample_parser(line, state);
match_action(line, str, state, dc_action, ARRAY_SIZE(dc_action));
}
/* These need to be sorted! */
struct keyword_action dive_action[] = {
#undef D
#define D(x) { #x, parse_dive_ ## x }
D(airpressure), D(airtemp), D(buddy), D(chill), D(current), D(cylinder), D(divemaster), D(divesiteid), D(duration),
D(gps), D(invalid), D(location), D(notes), D(notrip), D(rating), D(suit), D(surge),
D(tags), D(visibility), D(watersalinity), D(watertemp), D(wavesize), D(weightsystem)
};
static void dive_parser(char *line, struct membuffer *str, struct git_parser_state *state)
{
match_action(line, str, state, dive_action, ARRAY_SIZE(dive_action));
}
/* These need to be sorted! */
struct keyword_action site_action[] = {
#undef D
#define D(x) { #x, parse_site_ ## x }
D(description), D(geo), D(gps), D(name), D(notes)
};
static void site_parser(char *line, struct membuffer *str, struct git_parser_state *state)
{
match_action(line, str, state, site_action, ARRAY_SIZE(site_action));
}
/* These need to be sorted! */
struct keyword_action trip_action[] = {
#undef D
#define D(x) { #x, parse_trip_ ## x }
D(date), D(location), D(notes), D(time),
};
static void trip_parser(char *line, struct membuffer *str, struct git_parser_state *state)
{
match_action(line, str, state, trip_action, ARRAY_SIZE(trip_action));
}
/* These need to be sorted! */
static struct keyword_action settings_action[] = {
#undef D
#define D(x) { #x, parse_settings_ ## x }
D(autogroup), D(divecomputerid), D(prefs), D(subsurface), D(units), D(userid), D(version)
};
static void settings_parser(char *line, struct membuffer *str, struct git_parser_state *state)
{
match_action(line, str, state, settings_action, ARRAY_SIZE(settings_action));
}
/* These need to be sorted! */
static struct keyword_action picture_action[] = {
#undef D
#define D(x) { #x, parse_picture_ ## x }
D(filename), D(gps), D(hash)
};
static void picture_parser(char *line, struct membuffer *str, struct git_parser_state *state)
{
match_action(line, str, state, picture_action, ARRAY_SIZE(picture_action));
}
/*
* We have a very simple line-based interface, with the small
* complication that lines can have strings in the middle, and
* a string can be multiple lines.
*
* The UTF-8 string escaping is *very* simple, though:
*
* - a string starts and ends with double quotes (")
*
* - inside the string we escape:
* (a) double quotes with '\"'
* (b) backslash (\) with '\\'
*
* - additionally, for human readability, we escape
* newlines with '\n\t', with the exception that
* consecutive newlines are left unescaped (so an
* empty line doesn't become a line with just a tab
* on it).
*
* Also, while the UTF-8 string can have arbitrarily
* long lines, the non-string parts of the lines are
* never long, so we can use a small temporary buffer
* on stack for that part.
*
* Also, note that if a line has one or more strings
* in it:
*
* - each string will be represented as a single '"'
* character in the output.
*
* - all string will exist in the same 'membuffer',
* separated by NUL characters (that cannot exist
* in a string, not even quoted).
*/
static const char *parse_one_string(const char *buf, const char *end, struct membuffer *b)
{
const char *p = buf;
/*
* We turn multiple strings one one line (think dive tags) into one
* membuffer that has NUL characters in between strings.
*/
if (b->len)
put_bytes(b, "", 1);
while (p < end) {
char replace;
switch (*p++) {
default:
continue;
case '\n':
if (p < end && *p == '\t') {
replace = '\n';
break;
}
continue;
case '\\':
if (p < end) {
replace = *p;
break;
}
continue;
case '"':
replace = 0;
break;
}
put_bytes(b, buf, p - buf - 1);
if (!replace)
break;
put_bytes(b, &replace, 1);
buf = ++p;
}
return p;
}
typedef void (line_fn_t)(char *, struct membuffer *, struct git_parser_state *);
#define MAXLINE 500
static unsigned parse_one_line(const char *buf, unsigned size, line_fn_t *fn, struct git_parser_state *state, struct membuffer *b)
{
const char *end = buf + size;
const char *p = buf;
char line[MAXLINE + 1];
int off = 0;
while (p < end) {
char c = *p++;
if (c == '\n')
break;
line[off] = c;
off++;
if (off > MAXLINE)
off = MAXLINE;
if (c == '"')
p = parse_one_string(p, end, b);
}
line[off] = 0;
fn(line, b, state);
return p - buf;
}
/*
* We keep on re-using the membuffer that we use for
* strings, but the callback function can "steal" it by
* saving its value and just clear the original.
*/
static void for_each_line(git_blob *blob, line_fn_t *fn, struct git_parser_state *state)
{
const char *content = git_blob_rawcontent(blob);
unsigned int size = git_blob_rawsize(blob);
struct membuffer str = { 0 };
while (size) {
unsigned int n = parse_one_line(content, size, fn, state, &str);
content += n;
size -= n;
/* Re-use the allocation, but forget the data */
str.len = 0;
}
free_buffer(&str);
}
#define GIT_WALK_OK 0
#define GIT_WALK_SKIP 1
static void finish_active_trip(struct git_parser_state *state)
{
dive_trip_t *trip = state->active_trip;
if (trip) {
state->active_trip = NULL;
insert_trip(trip, state->trips);
}
}
static void finish_active_dive(struct git_parser_state *state)
{
struct dive *dive = state->active_dive;
if (dive) {
state->active_dive = NULL;
record_dive_to_table(dive, state->table);
}
}
static void create_new_dive(timestamp_t when, struct git_parser_state *state)
{
state->active_dive = alloc_dive();
/* We'll fill in more data from the dive file */
state->active_dive->when = when;
if (state->active_trip)
add_dive_to_trip(state->active_dive, state->active_trip);
}
static bool validate_date(int yyyy, int mm, int dd)
{
return yyyy > 1930 && yyyy < 3000 &&
mm > 0 && mm < 13 &&
dd > 0 && dd < 32;
}
static bool validate_time(int h, int m, int s)
{
return h >= 0 && h < 24 &&
m >= 0 && m < 60 &&
s >=0 && s <= 60;
}
/*
* Dive trip directory, name is 'nn-alphabetic[~hex]'
*/
static int dive_trip_directory(const char *root, const char *name, struct git_parser_state *state)
{
int yyyy = -1, mm = -1, dd = -1;
if (sscanf(root, "%d/%d", &yyyy, &mm) != 2)
return GIT_WALK_SKIP;
dd = atoi(name);
if (!validate_date(yyyy, mm, dd))
return GIT_WALK_SKIP;
finish_active_trip(state);
state->active_trip = alloc_trip();
return GIT_WALK_OK;
}
/*
* Dive directory, name is [[yyyy-]mm-]nn-ddd-hh:mm:ss[~hex] in older git repositories
* but [[yyyy-]mm-]nn-ddd-hh=mm=ss[~hex] in newer repos as ':' is an illegal character for Windows files
* and 'timeoff' points to what should be the time part of
* the name (the first digit of the hour).
*
* The root path will be of the form yyyy/mm[/tripdir],
*/
static int dive_directory(const char *root, const git_tree_entry *entry, const char *name, int timeoff, struct git_parser_state *state)
{
int yyyy = -1, mm = -1, dd = -1;
int h, m, s;
int mday_off, month_off, year_off;
struct tm tm;
/* Skip the '-' before the time */
mday_off = timeoff;
if (!mday_off || name[--mday_off] != '-')
return GIT_WALK_SKIP;
/* Skip the day name */
while (mday_off > 0 && name[--mday_off] != '-')
/* nothing */;
mday_off = mday_off - 2;
month_off = mday_off - 3;
year_off = month_off - 5;
if (mday_off < 0)
return GIT_WALK_SKIP;
/* Get the time of day -- parse both time formats so we can read old repos when not on Windows */
if (sscanf(name + timeoff, "%d:%d:%d", &h, &m, &s) != 3 && sscanf(name + timeoff, "%d=%d=%d", &h, &m, &s) != 3)
return GIT_WALK_SKIP;
if (!validate_time(h, m, s))
return GIT_WALK_SKIP;
/*
* Using the "git_tree_walk()" interface is simple, but
* it kind of sucks as an interface because there is
* no sane way to pass the hierarchy to the callbacks.
* The "payload" is a fixed one-time thing: we'd like
* the "current trip" to be passed down to the dives
* that get parsed under that trip, but we can't.
*
* So "active_trip" is not the trip that is in the hierarchy
* _above_ us, it's just the trip that was _before_ us. But
* if a dive is not in a trip at all, we can't tell.
*
* We could just do a better walker that passes the
* return value around, but we hack around this by
* instead looking at the one hierarchical piece of
* data we have: the pathname to the current entry.
*
* This is pretty hacky. The magic '8' is the length
* of a pathname of the form 'yyyy/mm/'.
*/
if (strlen(root) == 8)
finish_active_trip(state);
/*
* Get the date. The day of the month is in the dive directory
* name, the year and month might be in the path leading up
* to it.
*/
dd = atoi(name + mday_off);
if (year_off < 0) {
if (sscanf(root, "%d/%d", &yyyy, &mm) != 2)
return GIT_WALK_SKIP;
} else
yyyy = atoi(name + year_off);
if (month_off >= 0)
mm = atoi(name + month_off);
if (!validate_date(yyyy, mm, dd))
return GIT_WALK_SKIP;
/* Ok, close enough. We've gotten sufficient information */
memset(&tm, 0, sizeof(tm));
tm.tm_hour = h;
tm.tm_min = m;
tm.tm_sec = s;
tm.tm_year = yyyy;
tm.tm_mon = mm-1;
tm.tm_mday = dd;
finish_active_dive(state);
create_new_dive(utc_mktime(&tm), state);
memcpy(state->active_dive->git_id, git_tree_entry_id(entry)->id, 20);
return GIT_WALK_OK;
}
static int picture_directory(const char *root, const char *name, struct git_parser_state *state)
{
UNUSED(root);
UNUSED(name);
if (!state->active_dive)
return GIT_WALK_SKIP;
return GIT_WALK_OK;
}
/*
* Return the length of the string without the unique part.
*/
static int nonunique_length(const char *str)
{
int len = 0;
for (;;) {
char c = *str++;
if (!c || c == '~')
return len;
len++;
}
}
/*
* When hitting a directory node, we have a couple of cases:
*
* - It's just a date entry - all numeric (either year or month):
*
* [yyyy|mm]
*
* We don't do anything with these, we just traverse into them.
* The numeric data will show up as part of the full path when
* we hit more interesting entries.
*
* - It's a trip directory. The name will be of the form
*
* nn-alphabetic[~hex]
*
* where 'nn' is the day of the month (year and month will be
* encoded in the path leading up to this).
*
* - It's a dive directory. The name will be of the form
*
* [[yyyy-]mm-]nn-ddd-hh=mm=ss[~hex]
*
* (older versions had this as [[yyyy-]mm-]nn-ddd-hh:mm:ss[~hex]
* but that faile on Windows)
*
* which describes the date and time of a dive (yyyy and mm
* are optional, and may be encoded in the path leading up to
* the dive).
*
* - It is a per-dive picture directory ("Pictures")
*
* - It's some random non-dive-data directory.
*
* If it doesn't match the above patterns, we'll ignore them
* for dive loading purposes, and not even recurse into them.
*/
static int walk_tree_directory(const char *root, const git_tree_entry *entry, struct git_parser_state *state)
{
const char *name = git_tree_entry_name(entry);
int digits = 0, len;
char c;
if (!strcmp(name, "Pictures"))
return picture_directory(root, name, state);
if (!strcmp(name, "01-Divesites"))
return GIT_WALK_OK;
while (isdigit(c = name[digits]))
digits++;
/* Doesn't start with two or four digits? Skip */
if (digits != 4 && digits != 2)
return GIT_WALK_SKIP;
/* Only digits? Do nothing, but recurse into it */
if (!c)
return GIT_WALK_OK;
/* All valid cases need to have a slash following */
if (c != '-')
return GIT_WALK_SKIP;
/* Do a quick check for a common dive case */
len = nonunique_length(name);
/*
* We know the len is at least 3, because we had at least
* two digits and a dash
*/
if (name[len-3] == ':' || name[len-3] == '=')
return dive_directory(root, entry, name, len-8, state);
if (digits != 2)
return GIT_WALK_SKIP;
return dive_trip_directory(root, name, state);
}
static git_blob *git_tree_entry_blob(git_repository *repo, const git_tree_entry *entry)
{
const git_oid *id = git_tree_entry_id(entry);
git_blob *blob;
if (git_blob_lookup(&blob, repo, id))
return NULL;
return blob;
}
static struct divecomputer *create_new_dc(struct dive *dive)
{
struct divecomputer *dc = &dive->dc;
while (dc->next)
dc = dc->next;
/* Did we already fill that in? */
if (dc->samples || dc->model || dc->when) {
struct divecomputer *newdc = calloc(1, sizeof(*newdc));
if (!newdc)
return NULL;
dc->next = newdc;
dc = newdc;
}
dc->when = dive->when;
dc->duration = dive->duration;
return dc;
}
/*
* We should *really* try to delay the dive computer data parsing
* until necessary, in order to reduce load-time. The parsing is
* cheap, but the loading of the git blob into memory can be pretty
* costly.
*/
static int parse_divecomputer_entry(struct git_parser_state *state, const git_tree_entry *entry, const char *suffix)
{
UNUSED(suffix);
git_blob *blob = git_tree_entry_blob(state->repo, entry);
if (!blob)
return report_error("Unable to read divecomputer file");
state->active_dc = create_new_dc(state->active_dive);
for_each_line(blob, divecomputer_parser, state);
git_blob_free(blob);
state->active_dc = NULL;
return 0;
}
/*
* NOTE! The "git_id" for the dive is the hash for the whole dive directory.
* As such, it covers not just the dive, but the divecomputers and the
* pictures too. So if any of the dive computers change, the dive cache
* has to be invalidated too.
*/
static int parse_dive_entry(struct git_parser_state *state, const git_tree_entry *entry, const char *suffix)
{
struct dive *dive = state->active_dive;
git_blob *blob = git_tree_entry_blob(state->repo, entry);
if (!blob)
return report_error("Unable to read dive file");
if (*suffix)
dive->number = atoi(suffix + 1);
clear_weightsystem_table(&state->active_dive->weightsystems);
state->o2pressure_sensor = 1;
for_each_line(blob, dive_parser, state);
git_blob_free(blob);
return 0;
}
static int parse_site_entry(struct git_parser_state *state, const git_tree_entry *entry, const char *suffix)
{
if (*suffix == '\0')
return report_error("Dive site without uuid");
uint32_t uuid = strtoul(suffix, NULL, 16);
state->active_site = alloc_or_get_dive_site(uuid, &dive_site_table);
git_blob *blob = git_tree_entry_blob(state->repo, entry);
if (!blob)
return report_error("Unable to read dive site file");
for_each_line(blob, site_parser, state);
state->active_site = NULL;
git_blob_free(blob);
return 0;
}
static int parse_trip_entry(struct git_parser_state *state, const git_tree_entry *entry)
{
git_blob *blob = git_tree_entry_blob(state->repo, entry);
if (!blob)
return report_error("Unable to read trip file");
for_each_line(blob, trip_parser, state);
git_blob_free(blob);
return 0;
}
static int parse_settings_entry(struct git_parser_state *state, const git_tree_entry *entry)
{
git_blob *blob = git_tree_entry_blob(state->repo, entry);
if (!blob)
return report_error("Unable to read settings file");
for_each_line(blob, settings_parser, NULL);
git_blob_free(blob);
return 0;
}
static int parse_picture_entry(struct git_parser_state *state, const git_tree_entry *entry, const char *name)
{
git_blob *blob;
int hh, mm, ss, offset;
char sign;
/*
* The format of the picture name files is just the offset within
* the dive in form [[+-]hh=mm=ss (previously [[+-]hh:mm:ss, but
* that didn't work on Windows), possibly followed by a hash to
* make the filename unique (which we can just ignore).
*/
if (sscanf(name, "%c%d:%d:%d", &sign, &hh, &mm, &ss) != 4 &&
sscanf(name, "%c%d=%d=%d", &sign, &hh, &mm, &ss) != 4)
return report_error("Unknown file name %s", name);
offset = ss + 60 * (mm + 60 * hh);
if (sign == '-')
offset = -offset;
blob = git_tree_entry_blob(state->repo, entry);
if (!blob)
return report_error("Unable to read picture file");
state->active_pic = alloc_picture();
state->active_pic->offset.seconds = offset;
for_each_line(blob, picture_parser, state);
dive_add_picture(state->active_dive, state->active_pic);
git_blob_free(blob);
state->active_pic = NULL;
return 0;
}
static int walk_tree_file(const char *root, const git_tree_entry *entry, struct git_parser_state *state)
{
struct dive *dive = state->active_dive;
dive_trip_t *trip = state->active_trip;
const char *name = git_tree_entry_name(entry);
if (verbose > 1)
SSRF_INFO("git load handling file %s\n", name);
switch (*name) {
case '-': case '+':
if (dive)
return parse_picture_entry(state, entry, name);
break;
case 'D':
if (dive && !strncmp(name, "Divecomputer", 12))
return parse_divecomputer_entry(state, entry, name + 12);
if (dive && !strncmp(name, "Dive", 4))
return parse_dive_entry(state, entry, name + 4);
break;
case 'S':
if (!strncmp(name, "Site", 4))
return parse_site_entry(state, entry, name + 5);
break;
case '0':
if (trip && !strcmp(name, "00-Trip"))
return parse_trip_entry(state, entry);
if (!strcmp(name, "00-Subsurface"))
return parse_settings_entry(state, entry);
break;
}
report_error("Unknown file %s%s (%p %p)", root, name, dive, trip);
return GIT_WALK_SKIP;
}
static int walk_tree_cb(const char *root, const git_tree_entry *entry, void *payload)
{
struct git_parser_state *state = payload;
git_filemode_t mode = git_tree_entry_filemode(entry);
if (mode == GIT_FILEMODE_TREE)
return walk_tree_directory(root, entry, state);
walk_tree_file(root, entry, state);
/* Ignore failed blob loads */
return GIT_WALK_OK;
}
static int load_dives_from_tree(git_repository *repo, git_tree *tree, struct git_parser_state *state)
{
git_tree_walk(tree, GIT_TREEWALK_PRE, walk_tree_cb, state);
return 0;
}
void clear_git_id(void)
{
free((void *)saved_git_id);
saved_git_id = NULL;
}
void set_git_id(const struct git_oid *id)
{
char git_id_buffer[GIT_OID_HEXSZ + 1];
git_oid_tostr(git_id_buffer, sizeof(git_id_buffer), id);
free((void *)saved_git_id);
saved_git_id = strdup(git_id_buffer);
}
static int find_commit(git_repository *repo, const char *branch, git_commit **commit_p)
{
git_object *object;
if (git_revparse_single(&object, repo, branch))
return report_error("Unable to look up revision '%s'", branch);
if (git_object_peel((git_object **)commit_p, object, GIT_OBJ_COMMIT))
return report_error("Revision '%s' is not a valid commit", branch);
return 0;
}
static int do_git_load(git_repository *repo, const char *branch, struct git_parser_state *state)
{
int ret;
git_commit *commit;
git_tree *tree;
ret = find_commit(repo, branch, &commit);
if (ret)
return ret;
if (git_commit_tree(&tree, commit))
return report_error("Could not look up tree of commit in branch '%s'", branch);
git_storage_update_progress(translate("gettextFromC", "Load dives from local cache"));
ret = load_dives_from_tree(repo, tree, state);
if (!ret) {
set_git_id(git_commit_id(commit));
git_storage_update_progress(translate("gettextFromC", "Successfully opened dive data"));
}
git_object_free((git_object *)tree);
return ret;
}
const char *get_sha(git_repository *repo, const char *branch)
{
static char git_id_buffer[GIT_OID_HEXSZ + 1];
git_commit *commit;
if (find_commit(repo, branch, &commit))
return NULL;
git_oid_tostr(git_id_buffer, sizeof(git_id_buffer), (const git_oid *)commit);
return git_id_buffer;
}
/*
* Like git_save_dives(), this silently returns a negative
* value if it's not a git repository at all (so that you
* can try to load it some other way.
*
* If it is a git repository, we return zero for success,
* or report an error and return 1 if the load failed.
*/
int git_load_dives(struct git_repository *repo, const char *branch, struct dive_table *table, struct trip_table *trips, struct dive_site_table *sites)
{
int ret;
struct git_parser_state state = { 0 };
state.repo = repo;
state.table = table;
state.trips = trips;
state.sites = sites;
if (repo == dummy_git_repository)
return report_error("Unable to open git repository at '%s'", branch);
ret = do_git_load(repo, branch, &state);
git_repository_free(repo);
free((void *)branch);
finish_active_dive(&state);
finish_active_trip(&state);
return ret;
}