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https://github.com/vlang/v.git
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58 lines
1.8 KiB
V
58 lines
1.8 KiB
V
module compiler
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import os
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pub fn launch_tool(tname string) {
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is_verbose := '-verbose' in os.args || '--verbose' in os.args
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vexe := vexe_path()
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vroot := os.dir(vexe)
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set_vroot_folder( vroot ) // needed by tools to find back v
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tool_args := os.args[1..].join(' ')
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tool_exe := os.realpath('$vroot/tools/$tname')
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tool_source := os.realpath('$vroot/tools/${tname}.v')
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tool_command := '"$tool_exe" $tool_args'
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if is_verbose {
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eprintln('launch_tool vexe : $vroot')
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eprintln('launch_tool vroot : $vroot')
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eprintln('launch_tool tool_args : $tool_args')
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eprintln('launch_tool tool_command: $tool_command')
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}
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mut tool_should_be_recompiled := false
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if !os.exists(tool_exe) {
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// fresh checkout
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tool_should_be_recompiled = true
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} else {
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if os.file_last_mod_unix(tool_exe) <= os.file_last_mod_unix(vexe) {
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// v was recompiled, maybe after v up ...
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// rebuild the tool too just in case
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tool_should_be_recompiled = true
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}
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if os.file_last_mod_unix(tool_exe) <= os.file_last_mod_unix(tool_source) {
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// the user changed the source code of the tool
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tool_should_be_recompiled = true
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}
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}
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if is_verbose {
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eprintln('launch_tool tool_should_be_recompiled: $tool_should_be_recompiled')
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}
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if tool_should_be_recompiled {
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mut compilation_options := ''
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if tname == 'vfmt' { compilation_options = '-d vfmt' }
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compilation_command := '"$vexe" $compilation_options "$tool_source"'
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if is_verbose {
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eprintln('Compiling $tname with: "$compilation_command"')
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}
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tool_compilation := os.exec(compilation_command) or { panic(err) }
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if tool_compilation.exit_code != 0 {
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panic('V tool "$tool_source" could not be compiled\n' + tool_compilation.output)
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}
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}
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if is_verbose {
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eprintln('launch_tool running tool command: $tool_command ...')
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}
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exit( os.system(tool_command) )
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}
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