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// This file defines some code for getting info about modules and installing them.
#include <err.h>
#include <stdlib.h>
#include <string.h>
#include <sys/wait.h>
#include "config.h"
#include "modules.h"
#include "stdlib/memory.h"
#include "stdlib/paths.h"
#include "stdlib/pointers.h"
#include "stdlib/print.h"
#include "stdlib/simpleparse.h"
#include "stdlib/tables.h"
#include "stdlib/text.h"
#include "stdlib/types.h"
#include "stdlib/util.h"
#define xsystem(...) \
({ \
int _status = system(String(__VA_ARGS__)); \
if (!WIFEXITED(_status) || WEXITSTATUS(_status) != 0) \
errx(1, "Failed to run command: %s", String(__VA_ARGS__)); \
})
bool install_from_modules_ini(Path_t ini_file, bool ask_confirmation) {
OptionalClosure_t by_line = Path$by_line(ini_file);
if (by_line.fn == NULL) return false;
OptionalText_t (*next_line)(void *) = by_line.fn;
module_info_t info = {};
for (Text_t line; (line = next_line(by_line.userdata)).length >= 0;) {
char *line_str = Text$as_c_string(line);
const char *next_section = NULL;
if (!strparse(line_str, "[", &next_section, "]")) {
if (info.name) {
if (!try_install_module(info, ask_confirmation)) return false;
}
print("Checking module ", next_section, "...");
info = (module_info_t){.name = next_section};
continue;
}
if (!strparse(line_str, "version=", &info.version) || !strparse(line_str, "url=", &info.url)
|| !strparse(line_str, "git=", &info.git) || !strparse(line_str, "path=", &info.path)
|| !strparse(line_str, "revision=", &info.revision))
continue;
}
if (info.name) {
if (!try_install_module(info, ask_confirmation)) return false;
}
return true;
}
static void read_modules_ini(Path_t ini_file, module_info_t *info) {
OptionalClosure_t by_line = Path$by_line(ini_file);
if (by_line.fn == NULL) return;
OptionalText_t (*next_line)(void *) = by_line.fn;
find_section:;
for (Text_t line; (line = next_line(by_line.userdata)).length >= 0;) {
char *line_str = Text$as_c_string(line);
if (line_str[0] == '[' && strncmp(line_str + 1, info->name, strlen(info->name)) == 0
&& line_str[1 + strlen(info->name)] == ']')
break;
}
for (Text_t line; (line = next_line(by_line.userdata)).length >= 0;) {
char *line_str = Text$as_c_string(line);
if (line_str[0] == '[') goto find_section;
if (!strparse(line_str, "version=", &info->version) || !strparse(line_str, "url=", &info->url)
|| !strparse(line_str, "git=", &info->git) || !strparse(line_str, "path=", &info->path)
|| !strparse(line_str, "revision=", &info->revision))
continue;
}
}
module_info_t get_module_info(ast_t *use) {
static Table_t cache = {};
TypeInfo_t *cache_type = Table$info(Pointer$info("@", &Memory$info), Pointer$info("@", &Memory$info));
module_info_t **cached = Table$get(cache, &use, cache_type);
if (cached) return **cached;
const char *name = Match(use, Use)->path;
module_info_t *info = new (module_info_t, .name = name);
read_modules_ini(Path$sibling(Path$from_str(use->file->filename), Text("modules.ini")), info);
read_modules_ini(Path$with_extension(Path$from_str(use->file->filename), Text(":modules.ini"), false), info);
Table$set(&cache, &use, &info, cache_type);
return *info;
}
bool try_install_module(module_info_t mod, bool ask_confirmation) {
Path_t dest = Path$from_text(
Texts(TOMO_PREFIX "/lib/tomo_" TOMO_VERSION "/", Text$from_str(mod.name), "_", Text$from_str(mod.version)));
if (Path$exists(dest)) return true;
if (mod.git) {
if (ask_confirmation) {
OptionalText_t answer =
ask(Texts("The module \"", Text$from_str(mod.name), "\" ", Text$from_str(mod.version),
" is not installed.\nDo you want to install it from git URL ", Text$from_str(mod.git),
"? [Y/n] "),
true, true);
if (!(answer.length == 0 || Text$equal_values(answer, Text("Y")) || Text$equal_values(answer, Text("y"))))
return false;
}
print("Installing ", mod.name, " from git...");
if (mod.revision) xsystem("git clone --depth=1 --revision ", mod.revision, " ", mod.git, " ", dest);
else xsystem("git clone --depth=1 ", mod.git, " ", dest);
xsystem("tomo -L ", dest);
return true;
} else if (mod.url) {
if (ask_confirmation) {
OptionalText_t answer = ask(
Texts("The module \"", Text$from_str(mod.name), "\" ", Text$from_str(mod.version),
" is not installed.\nDo you want to install it from URL ", Text$from_str(mod.url), "? [Y/n] "),
true, true);
if (!(answer.length == 0 || Text$equal_values(answer, Text("Y")) || Text$equal_values(answer, Text("y"))))
return false;
}
print("Installing ", mod.name, " from URL...");
const char *p = strrchr(mod.url, '/');
if (!p) return false;
const char *filename = p + 1;
p = strchr(filename, '.');
if (!p) return false;
const char *extension = p + 1;
Path_t tmpdir = Path$unique_directory(Path("/tmp/tomo-module-XXXXXX"));
tmpdir = Path$child(tmpdir, Text$from_str(mod.name));
Path$create_directory(tmpdir, 0755);
xsystem("curl ", mod.url, " -o ", tmpdir);
Path$create_directory(dest, 0755);
if (streq(extension, ".zip")) xsystem("unzip ", tmpdir, "/", filename, " -d ", dest);
else if (streq(extension, ".tar.gz") || streq(extension, ".tar"))
xsystem("tar xf ", tmpdir, "/", filename, " -C ", dest);
else return false;
xsystem("tomo -L ", dest);
Path$remove(tmpdir, true);
return true;
} else if (mod.path) {
if (ask_confirmation) {
OptionalText_t answer = ask(
Texts("The module \"", Text$from_str(mod.name), "\" ", Text$from_str(mod.version),
" is not installed.\nDo you want to install it from path ", Text$from_str(mod.path), "? [Y/n] "),
true, true);
if (!(answer.length == 0 || Text$equal_values(answer, Text("Y")) || Text$equal_values(answer, Text("y"))))
return false;
}
print("Installing ", mod.name, " from path...");
xsystem("ln -s ", mod.path, " ", dest);
xsystem("tomo -L ", dest);
return true;
}
return false;
}
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