497 lines
13 KiB
V
497 lines
13 KiB
V
module main
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import (
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net.http
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os
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os.cmdline
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json
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filepath
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)
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const (
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default_vpm_server_urls = ['https://vpm.best', 'https://vpm.vlang.io']
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valid_vpm_commands = ['help', 'search', 'install', 'update', 'remove']
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excluded_dirs = ['cache', 'vlib']
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supported_vcs_systems = ['git', 'hg']
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supported_vcs_folders = ['.git', '.hg']
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supported_vcs_update_cmds = {
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'git': 'git pull --depth=1'
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'hg': 'hg pull --update'
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}
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supported_vcs_install_cmds = {
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'git': 'git clone --depth=1'
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'hg': 'hg clone'
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}
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)
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struct Mod {
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id int
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name string
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url string
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nr_downloads int
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vcs string
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}
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struct Vmod {
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mut:
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name string
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version string
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deps []string
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}
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fn main() {
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init_settings()
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// This tool is intended to be launched by the v frontend,
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// which provides the path to V inside os.getenv('VEXE')
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args := os.args // args are: vpm [options] SUBCOMMAND module names
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params := cmdline.only_non_options(args[1..])
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verbose_println('cli params: $params')
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if params.len < 1 {
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vpm_help([])
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exit(5)
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}
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vpm_command := params[0]
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module_names := params[1..]
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ensure_vmodules_dir_exist()
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// println('module names: ') println(module_names)
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match vpm_command {
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'help' {
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vpm_help(module_names)
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}
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'search' {
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vpm_search(module_names)
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}
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'install' {
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vpm_install(module_names)
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}
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'update' {
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vpm_update(module_names)
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}
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'remove' {
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vpm_remove(module_names)
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}
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else {
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println('Error: you tried to run "v $vpm_command"')
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println('... but the v package management tool vpm only knows about these commands:')
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for validcmd in valid_vpm_commands {
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println(' v $validcmd')
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}
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exit(3)
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}
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}
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}
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fn vpm_search(keywords []string) {
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if settings.is_help {
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println('Usage:')
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println(' v search keyword1 [keyword2] [...]')
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println(' ^^^^^^^^^^^^^^^^^ will search https://vpm.vlang.io/ for matching modules,')
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println(' and will show details about them')
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show_vpm_options()
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exit(0)
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}
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if keywords.len == 0 {
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println(' v search requires *at least one* keyword')
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exit(2)
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}
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modules := get_all_modules()
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joined := keywords.join(', ')
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mut index := 0
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for mod in modules {
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// TODO for some reason .filter results in substr error, so do it manually
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for k in keywords {
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if !mod.contains(k) {
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continue
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}
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if index == 0 {
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println('Search results for "$joined":\n')
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}
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index++
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mut parts := mod.split('.')
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// in case the author isn't present
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if parts.len == 1 {
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parts << parts[0]
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parts[0] = ''
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}
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println('${index}. ${parts[1]} by ${parts[0]} [$mod]')
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break
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}
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}
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println('\nUse "v install author.module_name" to install the module')
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if index == 0 {
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println('No module(s) found for "$joined"')
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}
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}
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fn vpm_install(module_names []string) {
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if settings.is_help {
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println('Usage:')
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println(' v install module [module] [module] [...]')
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println(' ^^^^^^^^^^^^^ will install the modules you specified')
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show_vpm_options()
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exit(0)
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}
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if module_names.len == 0 {
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println(' v install requires *at least one* module name')
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exit(2)
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}
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mut errors := 0
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url := get_working_server_url()
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for n in module_names {
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name := n.trim_space()
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modurl := url + '/jsmod/$name'
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r := http.get(modurl) or {
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println('Http server did not respond to our request for ${modurl}.')
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println('Error details: $err')
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errors++
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continue
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}
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if r.status_code == 404 {
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println('Skipping module "$name", since $url reported that "$name" does not exist.')
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errors++
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continue
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}
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if r.status_code != 200 {
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println('Skipping module "$name", since $url responded with $r.status_code http status code. Please try again later.')
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errors++
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continue
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}
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s := r.text
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mod := json.decode(Mod,s) or {
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errors++
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println('Skipping module "$name", since its information is not in json format.')
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continue
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}
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if ('' == mod.url || '' == mod.name) {
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errors++
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// a possible 404 error, which means a missing module?
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println('Skipping module "$name", since it is missing name or url information.')
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continue
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}
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mut vcs := mod.vcs
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if vcs == '' {
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vcs = supported_vcs_systems[0]
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}
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if !vcs in supported_vcs_systems {
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errors++
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println('Skipping module "$name", since it uses an unsupported VCS {$vcs} .')
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continue
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}
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final_module_path := os.realpath(filepath.join(settings.vmodules_path,mod.name.replace('.', os.path_separator)))
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if os.exists(final_module_path) {
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vpm_update([name])
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continue
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}
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println('Installing module "$name" from $mod.url to $final_module_path ...')
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vcs_install_cmd := supported_vcs_install_cmds[vcs]
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cmd := '${vcs_install_cmd} "${mod.url}" "${final_module_path}"'
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verbose_println(' command: $cmd')
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cmdres := os.exec(cmd) or {
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errors++
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println('Could not install module "$name" to "$final_module_path" .')
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verbose_println('Error command: $cmd')
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verbose_println('Error details: $err')
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continue
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}
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if cmdres.exit_code != 0 {
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errors++
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println('Failed installing module "$name" to "$final_module_path" .')
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verbose_println('Failed command: ${cmd}')
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verbose_println('Failed command output:\n${cmdres.output}')
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continue
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}
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resolve_dependencies(name, final_module_path, module_names)
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}
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if errors > 0 {
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exit(1)
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}
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}
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fn vpm_update(m []string) {
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mut module_names := m
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if settings.is_help {
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println('Usage: ')
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println(' a) v update module [module] [module] [...]')
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println(' ^^^^^^^^^^^^ will update the listed modules to their latest versions')
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println(' b) v update')
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println(' ^^^^^^^^^^^^ will update ALL installed modules to their latest versions')
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show_vpm_options()
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exit(0)
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}
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if module_names.len == 0 {
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module_names = get_installed_modules()
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}
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mut errors := 0
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for name in module_names {
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final_module_path := valid_final_path_of_existing_module(name) or {
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continue
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}
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os.chdir(final_module_path)
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println('Updating module "$name"...')
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verbose_println(' work folder: $final_module_path')
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vcs := vcs_used_in_dir(final_module_path) or {
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continue
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}
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vcs_cmd := supported_vcs_update_cmds[vcs[0]]
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verbose_println(' command: $vcs_cmd')
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vcs_res := os.exec('${vcs_cmd}') or {
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errors++
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println('Could not update module "$name".')
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verbose_println('Error command: ${vcs_cmd}')
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verbose_println('Error details:\n$err')
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continue
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}
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if vcs_res.exit_code != 0 {
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errors++
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println('Failed updating module "${name}".')
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verbose_println('Failed command: ${vcs_cmd}')
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verbose_println('Failed details:\n${vcs_res.output}')
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continue
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}
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resolve_dependencies(name, final_module_path, module_names)
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}
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if errors > 0 {
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exit(1)
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}
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}
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fn vpm_remove(module_names []string) {
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if settings.is_help {
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println('Usage: ')
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println(' a) v remove module [module] [module] [...]')
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println(' ^^^^^^^^^^^^ will remove the listed modules')
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println(' b) v remove')
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println(' ^^^^^^^^^^^^ will remove ALL installed modules')
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show_vpm_options()
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exit(0)
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}
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if module_names.len == 0 {
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println(' v update requires *at least one* module name')
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exit(2)
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}
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for name in module_names {
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final_module_path := valid_final_path_of_existing_module(name) or {
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continue
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}
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println('Removing module "$name"...')
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verbose_println('removing folder $final_module_path')
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os.rmdir_recursive(final_module_path)
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// delete author directory if it is empty
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author := name.split('.')[0]
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author_dir := os.realpath(filepath.join(settings.vmodules_path,author))
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if os.is_dir_empty(author_dir) {
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verbose_println('removing author folder $author_dir')
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os.rmdir(author_dir)
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}
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}
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}
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fn valid_final_path_of_existing_module(name string) ?string {
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name_of_vmodules_folder := filepath.join(settings.vmodules_path,name.replace('.', os.path_separator))
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final_module_path := os.realpath(name_of_vmodules_folder)
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if !os.exists(final_module_path) {
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println('No module with name "$name" exists at $name_of_vmodules_folder')
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return none
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}
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if !os.is_dir(final_module_path) {
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println('Skipping "$name_of_vmodules_folder", since it is not a folder.')
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return none
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}
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vcs_used_in_dir(final_module_path) or {
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println('Skipping "$name_of_vmodules_folder", since it does not use a supported vcs.')
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return none
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}
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return final_module_path
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}
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fn ensure_vmodules_dir_exist() {
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if !os.is_dir(settings.vmodules_path) {
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println('Creating $settings.vmodules_path/ ...')
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os.mkdir(settings.vmodules_path) or {
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panic(err)
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}
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}
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}
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fn vpm_help(module_names []string) {
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println('Usage:')
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println(' a) v install module [module] [module] [...]')
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println(' b) v update [module] [...]')
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println(' c) v remove [module] [...]')
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println(' d) v search keyword1 [keyword2] [...]')
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println('')
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println(' You can also pass -h or --help after each vpm command from the above, to see more details about it.')
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}
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fn vcs_used_in_dir(dir string) ?[]string {
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mut vcs := []string
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for repo_subfolder in supported_vcs_folders {
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checked_folder := os.realpath(filepath.join(dir,repo_subfolder))
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if os.is_dir(checked_folder) {
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vcs << repo_subfolder.replace('.', '')
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}
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}
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if vcs.len == 0 {
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return none
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}
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return vcs
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}
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fn get_installed_modules() []string {
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dirs := os.ls(settings.vmodules_path) or {
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return []
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}
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mut modules := []string
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for dir in dirs {
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adir := filepath.join(settings.vmodules_path,dir)
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if dir in excluded_dirs || !os.is_dir(adir) {
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continue
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}
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author := dir
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mods := os.ls(adir) or {
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continue
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}
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for m in mods {
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vcs_used_in_dir(filepath.join(adir,m)) or {
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continue
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}
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modules << '${author}.$m'
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}
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}
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return modules
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}
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fn get_all_modules() []string {
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url := get_working_server_url()
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r := http.get(url) or {
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panic(err)
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}
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if r.status_code != 200 {
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println('Failed to search vpm.best. Status code: $r.status_code')
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exit(1)
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}
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s := r.text
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mut read_len := 0
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mut modules := []string
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for read_len < s.len {
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mut start_token := '<a href="/mod'
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end_token := '</a>'
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// get the start index of the module entry
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mut start_index := s.index_after(start_token, read_len)
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if start_index == -1 {
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break
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}
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// get the index of the end of anchor (a) opening tag
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// we use the previous start_index to make sure we are getting a module and not just a random 'a' tag
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start_token = '">'
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start_index = s.index_after(start_token, start_index) + start_token.len
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// get the index of the end of module entry
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end_index := s.index_after(end_token, start_index)
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if end_index == -1 {
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break
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}
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modules << s[start_index..end_index]
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read_len = end_index
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if read_len >= s.len {
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break
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}
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}
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return modules
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}
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fn resolve_dependencies(name, module_path string, module_names []string) {
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vmod_path := filepath.join(module_path,'v.mod')
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if !os.exists(vmod_path) {
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return
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}
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data := os.read_file(vmod_path) or {
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return
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}
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vmod := parse_vmod(data)
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mut deps := []string
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// filter out dependencies that were already specified by the user
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for d in vmod.deps {
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if !(d in module_names) {
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deps << d
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}
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}
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if deps.len > 0 {
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println('Resolving ${deps.len} dependencies for module "$name"...')
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verbose_println('Found dependencies: $deps')
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vpm_install(deps)
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}
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}
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fn parse_vmod(data string) Vmod {
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keys := ['name', 'version', 'deps']
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mut m := {
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'name': '',
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'version': '',
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'deps': ''
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}
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for key in keys {
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mut key_index := data.index('$key:') or {
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continue
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}
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key_index += key.len + 1
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m[key] = data[key_index..data.index_after('\n', key_index)].trim_space().replace("'", '').replace('[', '').replace(']', '')
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}
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mut vmod := Vmod{}
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vmod.name = m['name']
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vmod.version = m['version']
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if m['deps'].len > 0 {
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vmod.deps = m['deps'].split(',')
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}
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return vmod
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}
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fn get_working_server_url() string {
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server_urls := if settings.server_urls.len > 0 { settings.server_urls } else { default_vpm_server_urls }
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for url in server_urls {
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verbose_println('Trying server url: $url')
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http.head(url) or {
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verbose_println(' $url failed.')
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continue
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}
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return url
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}
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panic('No responding vpm server found. Please check your network connectivity and try again later.')
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}
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// settings context:
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struct VpmSettings {
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mut:
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is_help bool
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is_verbose bool
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server_urls []string
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vmodules_path string
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}
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const (
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settings = &VpmSettings{}
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)
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fn init_settings() {
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mut s := &VpmSettings(0)
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unsafe{
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s = settings
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}
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s.is_help = '-h' in os.args || '--help' in os.args || 'help' in os.args
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s.is_verbose = '-verbose' in os.args || '--verbose' in os.args
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s.server_urls = cmdline.options(os.args, '-server-url')
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s.vmodules_path = os.home_dir() + '.vmodules'
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}
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fn show_vpm_options() {
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println('Options:')
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println(' -help - Show usage info')
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println(' -verbose - Print more details about the performed operation')
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println(' -server-url - When doing network operations, use this vpm server. Can be given multiple times.')
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}
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fn verbose_println(s string) {
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if settings.is_verbose {
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println(s)
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}
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}
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