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v/cmd/tools/vdoctor.v

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import os
import time
import v.util
import runtime
struct App {
mut:
report_lines []string
cached_cpuinfo map[string]string
}
fn (mut a App) println(s string) {
a.report_lines << s
}
fn (mut a App) collect_info() {
mut os_kind := os.user_os()
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mut arch_details := []string{}
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arch_details << '$runtime.nr_cpus() cpus'
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if runtime.is_32bit() {
arch_details << '32bit'
}
if runtime.is_64bit() {
arch_details << '64bit'
}
if runtime.is_big_endian() {
arch_details << 'big endian'
}
if runtime.is_little_endian() {
arch_details << 'little endian'
}
if os_kind == 'macos' {
arch_details << a.cmd(
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command: 'sysctl -n machdep.cpu.brand_string'
)
}
if os_kind == 'linux' {
mut cpu_details := ''
if cpu_details == '' {
cpu_details = a.cpu_info('model name')
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}
if cpu_details == '' {
cpu_details = a.cpu_info('hardware')
}
if cpu_details == '' {
cpu_details = os.uname().machine
}
arch_details << cpu_details
}
if os_kind == 'windows' {
arch_details << a.cmd(
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command: 'wmic cpu get name /format:table'
line: 1
)
}
//
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mut os_details := ''
wsl_check := a.cmd(
command: 'cat /proc/sys/kernel/osrelease'
)
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if os_kind == 'linux' {
os_details = a.get_linux_os_name()
if 'hypervisor' in a.cpu_info('flags') {
if 'microsoft' in wsl_check {
// WSL 2 is a Managed VM and Full Linux Kernel
// See https://docs.microsoft.com/en-us/windows/wsl/compare-versions
os_details += ' (WSL 2)'
} else {
os_details += ' (VM)'
}
}
// WSL 1 is NOT a Managed VM and Full Linux Kernel
// See https://docs.microsoft.com/en-us/windows/wsl/compare-versions
if 'Microsoft' in wsl_check {
os_details += ' (WSL)'
}
// From https://unix.stackexchange.com/a/14346
awk_cmd := '[ "$(awk \'\$5=="/" {print \$1}\' </proc/1/mountinfo)" != "$(awk \'\$5=="/" {print \$1}\' </proc/$$/mountinfo)" ] ; echo \$?'
if a.cmd(command: awk_cmd) == '0' {
os_details += ' (chroot)'
}
} else if os_kind == 'macos' {
mut details := []string{}
details << a.cmd(
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command: 'sw_vers -productName'
)
details << a.cmd(
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command: 'sw_vers -productVersion'
)
details << a.cmd(
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command: 'sw_vers -buildVersion'
)
os_details = details.join(', ')
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} else if os_kind == 'windows' {
wmic_info := a.cmd(
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command: 'wmic os get * /format:value'
line: -1
)
p := a.parse(wmic_info, '=')
caption, build_number, os_arch := p['caption'], p['buildnumber'], p['osarchitecture']
os_details = '$caption v$build_number $os_arch'
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} else {
ouname := os.uname()
os_details = '$ouname.release, $ouname.version'
}
a.line('OS', '$os_kind, $os_details')
a.line('Processor', arch_details.join(', '))
a.line('CC version', a.cmd(
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command: 'cc --version'
))
a.println('')
getwd := os.getwd()
vmodules := os.vmodules_dir()
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vexe := os.getenv('VEXE')
vroot := os.dir(vexe)
os.chdir(vroot)
a.line('getwd', getwd)
a.line('vmodules', vmodules)
a.line('vroot', vroot)
a.line('vexe', vexe)
a.line('vexe mtime', time.unix(os.file_last_mod_unix(vexe)).str())
a.line('is vroot writable', is_writable_dir(vroot).str())
a.line('is vmodules writable', is_writable_dir(vmodules).str())
a.line('V full version', util.full_v_version(true))
vtmp := os.getenv('VTMP')
if vtmp != '' {
a.line('env VTMP', '"$vtmp"')
}
vflags := os.getenv('VFLAGS')
if vflags != '' {
a.line('env VFLAGS', '"$vflags"')
}
a.println('')
a.line('Git version', a.cmd(
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command: 'git --version'
))
a.line('Git vroot status', a.git_info())
a.line('.git/config present', os.is_file('.git/config').str())
//
a.report_tcc_version('thirdparty/tcc')
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}
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struct CmdConfig {
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line int
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command string
}
fn (mut a App) cmd(c CmdConfig) string {
x := os.execute(c.command)
if x.exit_code < 0 {
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return 'N/A'
}
if x.exit_code == 0 {
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if c.line < 0 {
return x.output
}
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output := x.output.split_into_lines()
if output.len > 0 && output.len > c.line {
return output[c.line]
}
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}
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return 'Error: $x.output'
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}
fn (mut a App) line(label string, value string) {
a.println('$label: ${util.bold(value)}')
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}
fn (app &App) parse(config string, sep string) map[string]string {
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mut m := map[string]string{}
for line in config.split_into_lines() {
sline := line.trim_space()
if sline.len == 0 || sline[0] == `#` {
continue
}
x := sline.split(sep)
if x.len < 2 {
continue
}
m[x[0].trim_space().to_lower()] = x[1].trim_space().trim('"')
}
return m
}
fn (mut a App) get_linux_os_name() string {
mut os_details := ''
linux_os_methods := ['os-release', 'lsb_release', 'kernel', 'uname']
for m in linux_os_methods {
match m {
'os-release' {
if !os.is_file('/etc/os-release') {
continue
}
lines := os.read_file('/etc/os-release') or { continue }
vals := a.parse(lines, '=')
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if vals['PRETTY_NAME'] == '' {
continue
}
os_details = vals['PRETTY_NAME']
break
}
'lsb_release' {
exists := a.cmd(
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command: 'type lsb_release'
)
if exists.starts_with('Error') {
continue
}
os_details = a.cmd(
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command: 'lsb_release -d -s'
)
break
}
'kernel' {
if !os.is_file('/proc/version') {
continue
}
os_details = a.cmd(
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command: 'cat /proc/version'
)
break
}
'uname' {
ouname := os.uname()
os_details = '$ouname.release, $ouname.version'
break
}
else {}
}
}
return os_details
}
fn (mut a App) cpu_info(key string) string {
if a.cached_cpuinfo.len > 0 {
return a.cached_cpuinfo[key]
}
info := os.execute('cat /proc/cpuinfo')
if info.exit_code != 0 {
return '`cat /proc/cpuinfo` could not run'
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}
a.cached_cpuinfo = a.parse(info.output, ':')
return a.cached_cpuinfo[key]
}
fn (mut a App) git_info() string {
mut out := a.cmd(
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command: 'git -C . describe --abbrev=8 --dirty --always --tags'
).trim_space()
os.execute('git -C . remote add V_REPO https://github.com/vlang/v') // ignore failure (i.e. remote exists)
os.execute('git -C . fetch V_REPO')
commit_count := a.cmd(
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command: 'git rev-list @{0}...V_REPO/master --right-only --count'
).int()
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if commit_count > 0 {
out += ' ($commit_count commit(s) behind V master)'
}
return out
}
fn (mut a App) report_tcc_version(tccfolder string) {
if !os.is_file(os.join_path(tccfolder, '.git', 'config')) {
a.line(tccfolder, 'N/A')
return
}
tcc_branch_name := a.cmd(
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command: 'git -C $tccfolder rev-parse --abbrev-ref HEAD'
)
tcc_commit := a.cmd(
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command: 'git -C $tccfolder describe --abbrev=8 --dirty --always --tags'
)
a.line('$tccfolder status', '$tcc_branch_name $tcc_commit')
}
fn (mut a App) report_info() {
for x in a.report_lines {
println(x)
}
}
fn is_writable_dir(path string) bool {
res := os.is_writable_folder(path) or { false }
return res
}
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fn main() {
mut app := App{}
app.collect_info()
app.report_info()
}