/
erln8.c
1462 lines (1381 loc) · 43.5 KB
/
erln8.c
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/*
* ------------------------------------------------------------
* erln8: a sneaky Erlang version manager
*
* Copyright (c) 2014 Dave Parfitt
*
* This file is provided to you under the Apache License,
* Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain
* a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
* ------------------------------------------------------------
*/
/*
TODO:
split into multiple .c files
code cleanup
*/
// enjoy the mix of Java, Erlang, and C styles throughout the
// code. Guess it's not good to code when you have the flu.
/*
memory management note:
Since this program either exits or calls exec, there may be some
pointers that aren't freed before calling g_error. I guess I don't
really care about these. If you feel strongly about this,
please fix and submit a pull request on Github.
*/
/*
ERLN8_CONFIG_DIR/
config
logs/
otps/
foo/
dist/
bar/
dist/
baz/
dist/ (symlinked)
repos/
x/
y/
logs/
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <sys/param.h>
#include <errno.h>
#include <glib.h>
#include <glib/gstdio.h>
#include <glib-object.h>
#include <gio/gio.h>
#define ERLN8_CONFIG_FILE "erln8.config"
#define ERLN8_CONFIG_DIR ".erln8.d"
#define G_LOG_DOMAIN ((gchar*) 0)
#define ANSI_COLOR_RED "\x1b[31m"
#define ANSI_COLOR_GREEN "\x1b[32m"
#define ANSI_COLOR_YELLOW "\x1b[33m"
#define ANSI_COLOR_BLUE "\x1b[34m"
#define ANSI_COLOR_MAGENTA "\x1b[35m"
#define ANSI_COLOR_CYAN "\x1b[36m"
#define ANSI_COLOR_RESET "\x1b[0m"
static gboolean opt_init_erln8 = FALSE;
static gboolean opt_debug = FALSE;
static gchar* opt_use = NULL;
static gboolean opt_list = FALSE;
static gboolean opt_buildable = FALSE;
static gboolean opt_fetch = FALSE;
static gboolean opt_build = FALSE;
static gboolean opt_show = FALSE;
static gchar* opt_clone = NULL;
static gboolean opt_color = FALSE;
static gboolean opt_banner = FALSE;
static gchar* opt_repo = NULL;
static gchar* opt_tag = NULL;
static gchar* opt_id = NULL;
static gchar* opt_config = NULL;
static gboolean opt_configs = FALSE;
static gboolean opt_repos = FALSE;
static gchar* opt_link = NULL;
static gboolean opt_unlink = FALSE;
static gboolean opt_force = FALSE;
static gboolean opt_prompt = FALSE;
static gboolean opt_quickstart = FALSE;
static gboolean opt_dryrun = FALSE;
static const gchar* homedir;
static GOptionEntry entries[] = {
{
"init", 0, 0, G_OPTION_ARG_NONE, &opt_init_erln8,
"Initializes erln8", NULL
},
{
"use", 0, 0, G_OPTION_ARG_STRING, &opt_use,
"Setup the current directory to use a specific verion of Erlang", "id"
},
{
"list", 0, 0, G_OPTION_ARG_NONE, &opt_list,
"List available Erlang installations", NULL
},
{
"clone", 0, 0, G_OPTION_ARG_STRING, &opt_clone,
"Clone an Erlang source repository", "repo"
},
{
"fetch", 0, 0, G_OPTION_ARG_NONE, &opt_fetch,
"Update source repos", "repo"
},
{
"build", 0, 0, G_OPTION_ARG_NONE, &opt_build,
"Build a specific version of OTP from source", NULL
},
{
"repo", 0, 0, G_OPTION_ARG_STRING, &opt_repo,
"Specifies repo name to build from", "repo"
},
{
"tag", 0, 0, G_OPTION_ARG_STRING, &opt_tag,
"Specifies repo branch/tag to build from", "git_tag"
},
{
"id", 0, 0, G_OPTION_ARG_STRING, &opt_id,
"A user assigned name for a version of Erlang", "id"
},
{
"config", 0, 0, G_OPTION_ARG_STRING, &opt_config,
"Build configuration", "config"
},
{
"show", 0, 0, G_OPTION_ARG_NONE, &opt_show,
"Show the configured version of Erlang in the current working directory", NULL
},
{
"prompt", 0, 0, G_OPTION_ARG_NONE, &opt_prompt,
"Display the version of Erlang configured for this part of the directory tree", NULL
},
{
"configs", 0, 0, G_OPTION_ARG_NONE, &opt_configs,
"List build configs", NULL
},
{
"repos", 0, 0, G_OPTION_ARG_NONE, &opt_repos,
"List build repos", NULL
},
{
"link", 0, 0, G_OPTION_ARG_STRING, &opt_link,
"Link a non-erln8 build of Erlang to erln8", NULL
},
{
"unlink", 0, 0, G_OPTION_ARG_NONE, &opt_unlink,
"Unlink a non-erln8 build of Erlang from erln8", NULL
},
{
"force", 0, 0, G_OPTION_ARG_NONE, &opt_force,
"Use the force", NULL
},
{
"no-color", 0, 0, G_OPTION_ARG_NONE, &opt_color,
"Don't use color output", NULL
},
{
"buildable", 0, 0, G_OPTION_ARG_NONE, &opt_buildable,
"List tags to build from configured source repos", NULL
},
{
"quickstart", 0, 0, G_OPTION_ARG_NONE, &opt_quickstart,
"Initialize erln8 and build the latest version of Erlang", NULL
},
/*
{
"dryrun", 0, 0, G_OPTION_ARG_NONE, &opt_dryrun,
"Show build commands but don't execute them", NULL
},
*/
{
"debug", 0, 0, G_OPTION_ARG_NONE, &opt_debug,
"Debug Erln8", NULL
},
{ NULL }
};
static gchar* step[] = {
"[0] copy source ",
"[1] otp_build ",
"[2] configure ",
"[3] make ",
"[4] make install ",
"[5] make install-docs ",
(gchar*)0
};
static int step_count = 6;
gchar* red() {
return opt_color == TRUE ? ANSI_COLOR_RED : "";
}
gchar* green() {
return opt_color == TRUE ? ANSI_COLOR_GREEN : "";
}
gchar* yellow() {
return opt_color == TRUE ? ANSI_COLOR_YELLOW : "";
}
gchar* blue() {
return opt_color == TRUE ? ANSI_COLOR_BLUE : "";
}
gchar* color_reset() {
return opt_color == TRUE ? ANSI_COLOR_RESET : "";
}
void erln8_log( const gchar* log_domain,
GLogLevelFlags log_level,
const gchar* message,
gpointer user_data ) {
switch(log_level & G_LOG_LEVEL_MASK) {
case G_LOG_FLAG_RECURSION:
case G_LOG_LEVEL_CRITICAL:
case G_LOG_LEVEL_ERROR:
fprintf(stderr, "%s", red());
fprintf(stderr, "ERROR: %s",message);
fprintf(stderr, "%s", color_reset());
exit(-1);
break;
case G_LOG_LEVEL_WARNING:
fprintf(stderr, "%s", yellow());
fprintf(stderr, "WARNING: %s",message);
fprintf(stderr, "%s", color_reset());
break;
case G_LOG_LEVEL_INFO:
case G_LOG_LEVEL_MESSAGE:
fprintf(stderr, "INFO: %s",message);
break;
case G_LOG_LEVEL_DEBUG:
if(opt_debug) {
fprintf(stderr, "DEBUG: %s",message);
}
break;
default:
fprintf(stderr, "%s", red());
fprintf(stderr, "UNHANDLED: %s",message);
fprintf(stderr, "%s", color_reset());
break;
}
return;
}
// see if erlang i son the users path already
// if so, erln8 won't work correctly
gboolean erl_on_path() {
int status = system("which erl > /dev/null");
if(status == 0) {
return 1;
} else {
return 0;
}
}
// get a filename in the main config directory
gchar* get_configdir_file_name(gchar* filename) {
gchar* configfilename = g_strconcat(homedir,
"/" ERLN8_CONFIG_DIR "/",
filename,
(gchar*)0);
return configfilename;
}
// get a filename in a subdir of the config directory
gchar* get_config_subdir_file_name(gchar* subdir, gchar* filename) {
gchar* configfilename = g_strconcat(homedir,
"/" ERLN8_CONFIG_DIR "/",
subdir,
"/",
filename,
(gchar*)0);
return configfilename;
}
GHashTable* group_hash(gchar* group, gboolean ignore_error) {
GHashTable* h = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
GKeyFile* kf = g_key_file_new();
GError* error = NULL;
gchar* fn = get_configdir_file_name("config");
if(g_key_file_load_from_file(kf, fn, G_KEY_FILE_NONE, &error)) {
if (error != NULL) {
g_error("Unable to read file: %s\n", error->message);
//g_error_free(error); program exits, can't free
}
GError* keyerror = NULL;
gchar** keys = g_key_file_get_keys(kf, group, NULL, &keyerror);
if (keyerror != NULL) {
if(!ignore_error) {
g_error("Unable to read %s section from ~/" ERLN8_CONFIG_DIR "/config: %s\n", group, keyerror->message);
} else {
// just return NULL
g_free(fn);
g_key_file_free(kf);
g_error_free(keyerror);
return NULL;
}
//g_error_free(error);
} else {
gchar** it = keys;
while(*it) {
GError* valerror = NULL;
gchar* v = g_key_file_get_string(kf, group, *it, &valerror);
g_hash_table_insert(h, strdup(*it++), strdup(v));
g_free(v);
}
}
g_strfreev(keys);
g_key_file_free(kf);
} else {
g_error("Cannot read from ~/" ERLN8_CONFIG_DIR "/config\n");
}
g_free(fn);
return h;
}
GHashTable* get_erlangs() {
return group_hash("Erlangs", FALSE);
}
GHashTable* get_repos() {
return group_hash("Repos", FALSE);
}
GHashTable* get_configs() {
return group_hash("Configs", FALSE);
}
GHashTable* get_erln8() {
return group_hash("Erln8", FALSE);
}
GHashTable* get_system_roots() {
return group_hash("SystemRoots", TRUE);
}
void git_allbuildable() {
GHashTable* repos = get_repos();
GHashTableIter iter;
gpointer repo, value;
g_hash_table_iter_init (&iter, repos);
while (g_hash_table_iter_next(&iter, &repo, &value)) {
gchar* source_path = get_config_subdir_file_name("repos", repo);
if(!g_file_test(source_path, G_FILE_TEST_EXISTS |
G_FILE_TEST_IS_REGULAR)) {
g_error("Missing repo for %s, which should be in %s\n", (gchar*)repo, source_path);
}
printf("Tags for repo %s:\n", (gchar*)repo);
gchar* fetchcmd = g_strconcat("cd ",
source_path,
" && git tag | sort",
NULL);
int result = system(fetchcmd);
if(result != 0) {
g_error("Cannot get a list of git tags.\n");
}
g_free(fetchcmd);
g_free(source_path);
}
}
void e8_print(gpointer data, gpointer user_data) {
printf("%s\n", (gchar*)data);
}
// check and see if the ERLN8_CONFIG_FILE directory exists
// probably poorly named
gboolean check_home() {
gchar* configdir = g_strconcat(homedir, "/" ERLN8_CONFIG_DIR "", (gchar*)0);
g_debug("Checking config dir %s\n", configdir);
gboolean result = g_file_test(configdir,
G_FILE_TEST_EXISTS |
G_FILE_TEST_IS_REGULAR);
g_free(configdir);
return result;
}
// make a subdirectory in the ~/ERLN8_CONFIG_DIR directory
void mk_config_subdir(gchar* subdir) {
gchar* dirname = g_strconcat(homedir,
"/" ERLN8_CONFIG_DIR "/",
subdir,
(gchar*)0);
g_debug("Creating %s\n", dirname);
if(g_mkdir(dirname, S_IRWXU)) {
g_free(dirname);
g_error("Can't create directory %s\n", dirname);
} else {
g_free(dirname);
}
}
// generate the initial ~/ERLN8_CONFIG_DIR/config file with some
// default settings
// TODO: more settings, Linux, FreeBSD etc
void init_main_config() {
GKeyFile* kf = g_key_file_new();
g_key_file_set_boolean(kf,
"Erln8",
"color",
TRUE);
g_key_file_set_comment(kf,
"Erln8",
"color",
"Either true or false, case sensitive",
NULL);
g_key_file_set_boolean(kf,
"Erln8",
"banner",
FALSE);
g_key_file_set_comment(kf,
"Erln8",
"banner",
"Show the version of Erlang that erln8 is running",
NULL);
g_key_file_set_string(kf,
"Erln8",
"default_config",
"default");
g_key_file_set_comment(kf,
"Erln8",
"default_config",
"The default config to use for a build",
NULL);
g_key_file_set_string(kf,
"Erln8",
"system_default",
"");
g_key_file_set_comment(kf,
"Erln8",
"system_default",
"If an erln8.config file isn't found, use this one.",
NULL);
g_key_file_set_string(kf,
"Repos",
"default",
"https://github.com/erlang/otp.git");
g_key_file_set_string(kf,
"Erlangs",
"none",
"");
g_key_file_set_string(kf,
"Configs",
"default",
"");
g_key_file_set_string(kf,
"Configs",
"osx_llvm",
"--disable-hipe --enable-smp-support --enable-threads --enable-kernel-poll --enable-darwin-64bit");
g_key_file_set_string(kf,
"Configs",
"osx_llvm_dtrace",
"--disable-hipe --enable-smp-support --enable-threads --enable-kernel-poll --enable-darwin-64bit --enable-vm-probes --with-dynamic-trace=dtrace");
g_key_file_set_string(kf,
"Configs",
"osx_gcc",
"--disable-hipe --enable-smp-support --enable-threads --enable-kernel-poll --enable-darwin-64bit");
g_key_file_set_string(kf,
"Configs",
"osx_gcc_env",
"CC=gcc-4.2 CPPFLAGS=\'-DNDEBUG\' MAKEFLAGS=\'-j 3\'");
GError* error = NULL;
gchar* d = g_key_file_to_data (kf, NULL, &error);
if(error != NULL) {
g_error("Unable to create ~/" ERLN8_CONFIG_DIR "/config: %s\n", error->message);
//g_error_free(error);
}
gchar* fn = get_configdir_file_name("config");
printf("Creating " ERLN8_CONFIG_FILE " file: %s\n", fn);
GError* contentserror = NULL;
if(!g_file_set_contents(fn, d, -1, &contentserror)) {
if(contentserror != NULL) {
g_error("Unable to write contents to ~/" ERLN8_CONFIG_DIR "/config: %s\n", contentserror->message);
} else {
g_error("Unable to write contents to ~/" ERLN8_CONFIG_DIR "/config\n");
}
}
g_free(fn);
g_free(d);
g_key_file_free(kf);
if(!opt_quickstart) {
printf("%sIf you only want to use the canonical OTP repo, run `erln8 --clone default` before continuing%s\n", yellow(), color_reset());
}
}
// write an ERLN8_CONFIG_FILE file into the cwd
// won't override an existing file
// unless the user specifies --force
void init_here(gchar* erlang) {
GHashTable* erlangs = get_erlangs();
gboolean has_erlang = g_hash_table_contains(erlangs, erlang);
g_hash_table_destroy(erlangs);
if(!has_erlang) {
g_error("%s is not a configured version of Erlang\n", erlang);
}
GKeyFile* kf = g_key_file_new();
g_key_file_set_string(kf,
"Config",
"Erlang",
erlang);
GError* error = NULL;
gchar* d = g_key_file_to_data (kf, NULL, &error);
gchar* fn = "./" ERLN8_CONFIG_FILE;
gboolean result = FALSE;
if(!opt_force) {
result = g_file_test(fn, G_FILE_TEST_EXISTS |
G_FILE_TEST_IS_REGULAR);
}
if(result) {
g_error("Config already exists in this directory. Override with --force.\n");
} else {
GError* error2 = NULL;
if(!g_file_set_contents(fn, d, -1, &error2)) {
if (error2 != NULL) {
g_error("Unable to write file %s: %s\n", fn, error2->message);
} else {
g_error("Unable to write file %s\n", fn);
}
} else {
fprintf(stderr, "%sSaved " ERLN8_CONFIG_FILE " to %s%s\n", green(), fn, color_reset());
}
}
g_key_file_free(kf);
}
// list installed version of Erlang
void list_erlangs() {
GKeyFile* kf = g_key_file_new();
GError* error = NULL;
gchar* fn = get_configdir_file_name("config");
if(g_key_file_load_from_file(kf, fn, G_KEY_FILE_NONE, &error)) {
if (error != NULL) {
g_error("Unable to read file: %s\n", error->message);
//g_error_free(error); program exits, can't free
}
GError* keyerror = NULL;
gchar** keys = g_key_file_get_keys(kf, "Erlangs", NULL, &keyerror);
if (keyerror != NULL) {
g_error("Unable to read Erlangs section from ~/" ERLN8_CONFIG_DIR "/config: %s\n", keyerror->message);
//g_error_free(error);
} else {
gchar** it = keys;
while(*it) {
GError* valerror = NULL;
gchar* v = g_key_file_get_string(kf, "Erlangs", *it, &valerror);
if (g_strcmp0(*it, "none") != 0) {
printf("%s -> %s\n",*it, v);
}
it++;
g_free(v);
}
}
g_strfreev(keys);
g_key_file_free(kf);
} else {
g_error("Cannot read from ~/" ERLN8_CONFIG_DIR "/config\n");
}
g_free(fn);
}
// create ~/ERLN8_CONFIG_DIR, ~/ERLN8_CONFIG_DIR/config + related subdirs
// not atomic, if something blows up in here, the user will get
// a partial ~/ERLN8_CONFIG_DIR tree
void initialize() {
if(check_home()) {
g_warning("Configuration directory ~/" ERLN8_CONFIG_DIR " already exists\n");
return;
} else {
//if(erl_on_path()) {
// g_warning("Erlang already exists on the current PATH\n");
//}
// create the top level config directory, then create all subdirs
gchar* dirname = g_strconcat(homedir, "/" ERLN8_CONFIG_DIR "",(gchar*)0);
g_debug("Creating %s\n", dirname);
if(g_mkdir(dirname, S_IRWXU)) {
g_error("Can't create directory %s\n", dirname);
g_free(dirname);
return;
} else {
g_free(dirname);
}
mk_config_subdir("otps"); // location of compiled otp source files
mk_config_subdir("logs"); // logs!
mk_config_subdir("repos"); // location of git repos
init_main_config();
}
}
// search up the directory tree for a ERLN8_CONFIG_FILE to use
gchar* configcheck(char* d) {
gchar* retval = NULL;
gchar* f = g_strconcat(d, "/" ERLN8_CONFIG_FILE, NULL);
GFile* gf = g_file_new_for_path(f);
GFile* gd = g_file_new_for_path(d);
if(g_file_query_exists(gf, NULL)) {
gchar* cf = g_file_get_path(gf);
retval = cf;
} else {
if(retval == NULL && g_file_has_parent(gd, NULL)) {
GFile* parent = g_file_get_parent(gd);
gchar* pp = g_file_get_path(parent);
retval = configcheck(pp);
g_object_unref(parent);
g_free(pp);
}
}
g_free(f);
g_object_unref(gf);
g_object_unref(gd);
return retval;
}
// search up the directory tree for a SystemRoot to use
gchar* system_root_check(gchar* d) {
gchar* retval = NULL;
GFile* gd = g_file_new_for_path(d);
GHashTable *roots = get_system_roots();
if(roots == NULL) {
return NULL;
} else {
gchar *p = (gchar*)g_hash_table_lookup(roots, d);
if(p != NULL) {
retval = strdup(p);
}
}
if(roots != NULL) {
g_hash_table_destroy(roots);
}
if(retval == NULL && g_file_has_parent(gd, NULL)) {
GFile* parent = g_file_get_parent(gd);
gchar* pp = g_file_get_path(parent);
retval = system_root_check(pp);
g_object_unref(parent);
g_free(pp);
}
g_object_unref(gd);
return retval;
}
// search up the directory tree for an ERLN8_CONFIG_FILE to use,
// starting from cwd
gchar* configcheckfromcwd() {
gchar* d = getcwd(NULL, MAXPATHLEN);
gchar* retval = configcheck(d);
g_free(d);
return retval;
}
// search up the directory tree for an ERLN8_CONFIG_FILE to use,
// starting from cwd
gchar* systemrootcheck_from_cwd() {
gchar* d = getcwd(NULL, MAXPATHLEN);
gchar* retval = system_root_check(d);
g_free(d);
return retval;
}
gchar* get_system_default() {
GHashTable *e = get_erln8();
gchar* d = (gchar*)g_hash_table_lookup(e, "system_default");
// d can be NULL if the key doesn't exist etc.
if(d != NULL) {
gchar* ret = strdup(d);
return ret;
} else {
g_hash_table_destroy(e);
return NULL;
}
}
// which version of erlang is configured for this particular
// branch of the dir tree
gchar* which_erlang() {
gchar* cfgfile = configcheckfromcwd();
if(cfgfile == NULL) {
// check for a system root.
// if one doesn't exist, return the system_default
gchar *sysroot = systemrootcheck_from_cwd();
if(sysroot != NULL) {
return sysroot;
} else {
return get_system_default();
}
} else {
if(g_file_test(cfgfile, G_FILE_TEST_EXISTS |
G_FILE_TEST_IS_REGULAR)) {
GKeyFile* kf = g_key_file_new();
GError* err = NULL;
if(!g_key_file_load_from_file(kf, cfgfile, G_KEY_FILE_NONE, &err)) {
if(err != NULL) {
g_error("Cannot load %s: %s\n", cfgfile, err->message);
} else {
g_error("Cannot load %s\n", cfgfile);
}
} else {
if(!g_key_file_has_group(kf, "Config")) {
g_error("Config group not defined in %s\n", cfgfile);
return NULL;
} else {
err = NULL;
if(g_key_file_has_key(kf, "Config", "Erlang", &err)) {
gchar* erlversion = g_key_file_get_string(kf, "Config", "Erlang", &err);
g_free(cfgfile);
// THIS VALUE MUST BE FREED
return erlversion;
} else {
if(err != NULL) {
g_error("Missing Erlang | version: %s\n", err->message);
} else {
g_error("Missing Erlang | version\n");
}
return NULL;
}
}
}
} else {
return NULL;
}
}
return NULL;
}
// set a ~/ERLN8_CONFIG_DIR/config group/key value
// overwrites existing k/v's
gchar* set_config_kv(gchar* group, gchar* key, gchar* val) {
gchar* cfgfile = get_configdir_file_name("config");
GKeyFile* kf = g_key_file_new();
GError* err = NULL;
if(!g_key_file_load_from_file(kf, cfgfile, G_KEY_FILE_NONE, &err)) {
if(err != NULL) {
fprintf (stderr,
"Unable to load keyfile ~/" ERLN8_CONFIG_DIR "/config: %s\n",
err->message);
g_error_free(err);
} else {
fprintf(stderr, "Unable to load keyfile ~/" ERLN8_CONFIG_DIR "/config\n");
// TODO: exit etc
}
} else {
g_key_file_set_string(kf, group, key, val);
GError* error = NULL;
gchar* d = g_key_file_to_data (kf, NULL, &error);
gchar* fn = get_configdir_file_name("config");
g_debug("Writing to %s\n", fn);
GError* error2 = NULL;
if(!g_file_set_contents(fn, d, -1, &error2)) {
if(error2 != NULL) {
g_error("Error writing [%s] %s:%s to config file: %s\n",
group, key, val, error2->message);
} else {
g_error("Error writing [%s] %s:%s to config file\n",
group, key, val);
}
}
g_free(fn);
g_key_file_free(kf);
}
g_free(cfgfile);
return val;
}
// set a ~/ERLN8_CONFIG_DIR/config group/key value
// overwrites existing k/v's
void rm_config_kv(gchar* group, gchar* key) {
gchar* cfgfile = get_configdir_file_name("config");
GKeyFile* kf = g_key_file_new();
GError* err = NULL;
if(!g_key_file_load_from_file(kf, cfgfile, G_KEY_FILE_NONE, &err)) {
if(err != NULL) {
fprintf (stderr,
"Unable to load keyfile ~/" ERLN8_CONFIG_DIR "/config: %s\n",
err->message);
g_error_free(err);
} else {
g_error("Unable to load keyfile ~/" ERLN8_CONFIG_DIR "/config\n");
}
} else {
GError* error = NULL;
g_key_file_remove_key(kf, group, key, &error);
if(error != NULL) {
g_error("Can't remove %s:%s from ~/" ERLN8_CONFIG_DIR "/config: %s\n",
group, key, err->message);
} else {
error = NULL;
}
gchar* d = g_key_file_to_data (kf, NULL, &error);
gchar* fn = get_configdir_file_name("config");
g_debug("Writing to %s\n", fn);
GError* error2 = NULL;
if(!g_file_set_contents(fn, d, -1, &error2)) {
if(error2 != NULL) {
g_error("Error removing [%s] %s from config file: %s\n",
group, key, error2->message);
} else {
g_error("Error removing [%s] %s from config file\n",
group, key);
}
}
g_free(fn);
g_key_file_free(kf);
}
g_free(cfgfile);
}
void git_fetch(gchar* repo) {
GHashTable* repos = get_repos();
gboolean has_repo = g_hash_table_contains(repos, repo);
g_hash_table_destroy(repos);
if(!has_repo) {
g_error("Unknown repo %s\n", repo);
}
gchar* source_path = get_config_subdir_file_name("repos", repo);
if(!g_file_test(source_path, G_FILE_TEST_EXISTS |
G_FILE_TEST_IS_REGULAR)) {
g_error("Missing repo for %s, which should be in %s. Maybe you forgot to erln8 --clone repo_name\n",
repo,
source_path);
}
gchar* fetchcmd = g_strconcat("cd ",
source_path,
" && git fetch --all",
NULL);
int result = system(fetchcmd);
if(result != 0) {
g_error("Error fetching from repo %s\n", repo);
}
g_free(source_path);
g_free(fetchcmd);
}
void show_build_progress(int current_step, int exit_code) {
if(exit_code != 0) {
int len = strlen(step[current_step-1]);
int i;
for(i = 0; i < len; i++) {
printf("\b");
}
printf("%s%s\n", yellow(), step[current_step-1]);
} else if(current_step == step_count) {
int len = strlen(step[current_step-1]);
int i;
for(i = 0; i < len; i++) {
printf("\b");
}
printf("%s%s%s\n", green(), step[current_step-1], color_reset());
} else if(current_step > 0) {
int len = strlen(step[current_step-1]);
int i;
for(i = 0; i < len; i++) {
printf("\b");
}
printf("%s%s\n", green(), step[current_step-1]),
printf("%s%s", color_reset(), step[current_step]);
fflush(stdout);
} else {
printf("%s%s", color_reset(), step[current_step]);
fflush(stdout);
}
}
void setup_binaries(gchar* otpid) {
GHashTable* erlangs = get_erlangs();
gboolean has_erlang = g_hash_table_contains(erlangs, otpid);
gchar* path0 = (gchar*)g_hash_table_lookup(erlangs, otpid);
// path0 is freed when the hashtable is freed
gchar* path = strdup(path0);
g_hash_table_destroy(erlangs);
if(!has_erlang) {
g_error("%s doesn't appear to be linked. Did something go wrong with the build?\n", otpid);
}
gchar* genbins = g_strconcat("cd ", path, " && for i in `find -L . -perm -111 -type f | grep -v \"\\.so\" | grep -v \"\\.o\" | grep -v \"lib/erlang/bin\" | grep -v Install`; do `ln -s -f $i $(basename $i)` ; done", NULL);
g_debug("%s\n", genbins);
if(!opt_dryrun) {
int result = system(genbins);
if(result != 0) {
g_error("Error while generating symlinks using the following command: %s", genbins);
}
} else {
printf("%s", genbins);
}
g_free(genbins);
g_free(path);
}
// THIS FUNCTION NEEDS TO BE BROKEN UP INTO SMALLER PIECES!
void build_erlang(gchar* repo, gchar* tag, gchar* id, gchar* build_config) {
// check to see if the ID has already been used
GHashTable* otps = get_erlangs();
gboolean has_otp = g_hash_table_contains(otps, id);
g_hash_table_destroy(otps);
if(has_otp) {
g_error("A version of Erlang already exists with this id: %s\n", id);
}
// check to see if the repo exists
GHashTable* repos = get_repos();
gboolean has_repo = g_hash_table_contains(repos, repo);
g_hash_table_destroy(repos);
if(!has_repo) {
g_error("Unconfigured repo: %s\n", repo);
}
// check for a valid build config if one is specified
GHashTable* configs = get_configs();
if(build_config) {
if(!g_hash_table_contains(configs, build_config)) {
g_hash_table_destroy(configs);
g_error("Unconfigured build config: %s\n", build_config);
}
} else {
// check the default
GHashTable* e8 = get_erln8();
if(g_hash_table_contains(e8, "default_config")) {
build_config = strdup((gchar*)g_hash_table_lookup(e8, "default_config"));
printf("%sUsing default config %s%s\n", build_config, yellow(), color_reset());
}
g_hash_table_destroy(e8);
}
// CHECK FOR MAKE VS GMAKE
const gchar* make_bin = g_getenv("MAKE_BIN");
if(make_bin == NULL) {
make_bin = "make";
}
gchar pattern[] = "/tmp/erln8.buildXXXXXX";
gchar* tmp = g_mkdtemp(pattern);
g_debug("building in %s\n", tmp);
gchar* output_root = get_config_subdir_file_name("otps",id);
gchar* output_path = g_strconcat(output_root, "/dist", NULL);
gchar* source_path = get_config_subdir_file_name("repos", repo);
GTimeVal t;
g_get_current_time(&t);
gchar* ts = g_time_val_to_iso8601(&t);
gchar* ld = g_strconcat("logs/build_", id, "_", ts, NULL);
gchar* log_path = get_configdir_file_name(ld);
// check that the branch or tag exists in the specified repo
gchar* check_obj = g_strconcat("cd ", source_path, "&& git show-ref ", tag, " > /dev/null", NULL);
if(system(check_obj) != 0) {
g_free(check_obj);
g_error("branch or tag %s does not exist in %s Git repo\n",
tag,
repo);
}
g_free(check_obj);
/// check that the repo has been cloned
if(!g_file_test(source_path, G_FILE_TEST_EXISTS |
G_FILE_TEST_IS_REGULAR)) {
g_error("Missing repo for %s, which should be in %s.\nDid you forget to `erln8 --clone <repo_name>?`\n", repo, source_path);
}
gchar* bc = NULL;
gchar* env = NULL;
if(build_config != NULL) {
bc = (gchar*)g_hash_table_lookup(configs, build_config);
// don't drop a NULL into the middle of the command string
if(bc == NULL) {
bc = "";
} else {
gchar* env_name = g_strconcat(build_config, "_env", NULL);
env = (gchar*)g_hash_table_lookup(configs, env_name);
if(env == NULL) {
env = "";
}