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tools: improve support for renamed v executables (vlang self now works too)

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This commit is contained in:
Delyan Angelov 2022-01-10 15:45:28 +02:00
parent c07ce3ff15
commit da0b89cc57
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GPG Key ID: 66886C0F12D595ED
2 changed files with 26 additions and 18 deletions
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30
cmd/tools/vself.v
View File

@ -8,9 +8,13 @@ import v.util.recompilation
const is_debug = os.args.contains('-debug')
fn main() {
// support a renamed `v` executable too:
vexe := pref.vexe_path()
vroot := os.dir(vexe)
recompilation.must_be_enabled(vroot, 'Please install V from source, to use `v self` .')
vexe_name := os.file_name(vexe)
short_v_name := vexe_name.all_before('.')
//
recompilation.must_be_enabled(vroot, 'Please install V from source, to use `$vexe_name self` .')
os.chdir(vroot) ?
os.setenv('VCOLORS', 'always', true)
args := os.args[1..].filter(it != 'self')
@ -26,8 +30,8 @@ fn main() {
// The user just wants an independent copy of v, and so we are done.
return
}
backup_old_version_and_rename_newer() or { panic(err.msg) }
println('V built successfully!')
backup_old_version_and_rename_newer(short_v_name) or { panic(err.msg) }
println('V built successfully as executable "$vexe_name".')
}
fn compile(vroot string, cmd string) {
@ -41,7 +45,7 @@ fn compile(vroot string, cmd string) {
}
}
fn list_folder(bmessage string, message string) {
fn list_folder(short_v_name string, bmessage string, message string) {
if !is_debug {
return
}
@ -49,37 +53,37 @@ fn list_folder(bmessage string, message string) {
println(bmessage)
}
if os.user_os() == 'windows' {
os.system('dir v*.exe')
os.system('dir $short_v_name*.exe')
} else {
os.system('ls -lartd v*')
os.system('ls -lartd $short_v_name*')
}
println(message)
}
fn backup_old_version_and_rename_newer() ?bool {
fn backup_old_version_and_rename_newer(short_v_name string) ?bool {
mut errors := []string{}
short_v_file := if os.user_os() == 'windows' { 'v.exe' } else { 'v' }
short_v_file := if os.user_os() == 'windows' { '${short_v_name}.exe' } else { '$short_v_name' }
short_v2_file := if os.user_os() == 'windows' { 'v2.exe' } else { 'v2' }
short_bak_file := if os.user_os() == 'windows' { 'v_old.exe' } else { 'v_old' }
v_file := os.real_path(short_v_file)
v2_file := os.real_path(short_v2_file)
bak_file := os.real_path(short_bak_file)
list_folder('before:', 'removing $bak_file ...')
list_folder(short_v_name, 'before:', 'removing $bak_file ...')
if os.exists(bak_file) {
os.rm(bak_file) or { errors << 'failed removing $bak_file: $err.msg' }
}
list_folder('', 'moving $v_file to $bak_file ...')
list_folder(short_v_name, '', 'moving $v_file to $bak_file ...')
os.mv(v_file, bak_file) or { errors << err.msg }
list_folder('', 'removing $v_file ...')
list_folder(short_v_name, '', 'removing $v_file ...')
os.rm(v_file) or {}
list_folder('', 'moving $v2_file to $v_file ...')
list_folder(short_v_name, '', 'moving $v2_file to $v_file ...')
os.mv_by_cp(v2_file, v_file) or { panic(err.msg) }
list_folder('after:', '')
list_folder(short_v_name, 'after:', '')
if errors.len > 0 {
eprintln('backup errors:\n >> ' + errors.join('\n >> '))

10
vlib/v/util/util.v
View File

@ -43,10 +43,14 @@ pub fn tabs(n int) string {
//
pub fn set_vroot_folder(vroot_path string) {
// Preparation for the compiler module:
// VEXE env variable is needed so that compiler.vexe_path()
// can return it later to whoever needs it:
// VEXE env variable is needed so that compiler.vexe_path() can return it
// later to whoever needs it. NB: guessing is a heuristic, so only try to
// guess the V executable name, if VEXE has not been set already.
vexe := os.getenv('VEXE')
if vexe == '' {
vname := if os.user_os() == 'windows' { 'v.exe' } else { 'v' }
os.setenv('VEXE', os.real_path(os.join_path_single(vroot_path, vname)), true)
}
os.setenv('VCHILD', 'true', true)
}
@ -133,7 +137,7 @@ pub fn launch_tool(is_verbose bool, tool_name string, args []string) {
tool_source = tool_basename + '.v'
}
if is_verbose {
println('launch_tool vexe : $vroot')
println('launch_tool vexe : $vexe')
println('launch_tool vroot : $vroot')
println('launch_tool tool_source : $tool_source')
println('launch_tool tool_exe : $tool_exe')