all: support compile time `$env('ENV_VAR')` (#8456)
Larpon
GitHub
parent
4f4e3e9b61
commit
d25825df57
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@ -26,6 +26,7 @@
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from local variables.
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- `__offsetof` for low level needs (works like `offsetof` in C).
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- vfmt now preserves empty lines, like gofmt.
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- Support for compile time environment variables via `$env('ENV_VAR')`.
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## V 0.2.1
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*30 Dec 2020*
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@ -35,7 +35,7 @@ fn main() {
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}
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testing.header('Testing...')
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ts.test()
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println(ts.benchmark.total_message('Ran all V _test.v files'))
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println(ts.benchmark.total_message('all V _test.v files'))
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if ts.failed {
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exit(1)
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}
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15
doc/docs.md
15
doc/docs.md
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@ -3346,6 +3346,21 @@ executable, increasing your binary size, but making it more self contained
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and thus easier to distribute. In this case, `f.data()` will cause *no IO*,
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and it will always return the same data.
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#### $env
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```v
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module main
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fn main() {
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compile_time_env := $env('ENV_VAR')
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println(compile_time_env)
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}
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```
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V can bring in values at compile time from environment variables.
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`$env('ENV_VAR')` can also be used in top-level `#flag` and `#include` statements:
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`#flag linux -I $env('JAVA_HOME')/include`.
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### Environment specific files
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If a file has an environment-specific suffix, it will only be compiled for that environment.
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@ -189,7 +189,8 @@ pub fn (b &Benchmark) step_message_skip(msg string) string {
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// total_message returns a string with total summary of the benchmark run.
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pub fn (b &Benchmark) total_message(msg string) string {
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mut tmsg := '${term.colorize(term.bold, 'Summary:')} '
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the_label := term.colorize(term.gray, msg)
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mut tmsg := '${term.colorize(term.bold, 'Summary for $the_label:')} '
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if b.nfail > 0 {
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tmsg += term.colorize(term.bold, term.colorize(term.red, '$b.nfail failed')) + ', '
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}
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@ -200,7 +201,6 @@ pub fn (b &Benchmark) total_message(msg string) string {
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tmsg += term.colorize(term.bold, term.colorize(term.yellow, '$b.nskip skipped')) + ', '
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}
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tmsg += '$b.ntotal total. ${term.colorize(term.bold, 'Runtime:')} ${b.bench_timer.elapsed().microseconds() / 1000} ms.\n'
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tmsg += term.colorize(term.gray, msg)
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return tmsg
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}
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@ -1133,14 +1133,20 @@ pub:
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method_pos token.Position
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scope &Scope
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left Expr
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is_vweb bool
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vweb_tmpl File
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args_var string
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is_embed bool
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embed_file EmbeddedFile
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//
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is_vweb bool
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vweb_tmpl File
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//
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is_embed bool
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embed_file EmbeddedFile
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//
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is_env bool
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env_pos token.Position
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pub mut:
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sym table.TypeSymbol
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result_type table.Type
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env_value string
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}
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pub struct None {
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@ -3204,6 +3204,14 @@ fn (mut c Checker) hash_stmt(mut node ast.HashStmt) {
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}
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node.val = 'include $vroot'
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node.main = vroot
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flag = vroot
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}
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if flag.contains('\$env(') {
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env := util.resolve_env_value(flag, true) or {
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c.error(err, node.pos)
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return
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}
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node.main = env
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}
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flag_no_comment := flag.all_before('//').trim_space()
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if !((flag_no_comment.starts_with('"') && flag_no_comment.ends_with('"'))
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@ -3239,6 +3247,12 @@ fn (mut c Checker) hash_stmt(mut node ast.HashStmt) {
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return
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}
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}
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if flag.contains('\$env(') {
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flag = util.resolve_env_value(flag, true) or {
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c.error(err, node.pos)
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return
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}
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}
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for deprecated in ['@VMOD', '@VMODULE', '@VPATH', '@VLIB_PATH'] {
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if flag.contains(deprecated) {
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c.error('$deprecated had been deprecated, use @VROOT instead.', node.pos)
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@ -3663,6 +3677,14 @@ pub fn (mut c Checker) cast_expr(mut node ast.CastExpr) table.Type {
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fn (mut c Checker) comptime_call(mut node ast.ComptimeCall) table.Type {
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node.sym = c.table.get_type_symbol(c.unwrap_generic(c.expr(node.left)))
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if node.is_env {
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env_value := util.resolve_env_value("\$env('$node.args_var')", false) or {
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c.error(err, node.env_pos)
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return table.string_type
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}
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node.env_value = env_value
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return table.string_type
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}
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if node.is_embed {
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c.file.embedded_files << node.embed_file
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return c.table.find_type_idx('v.embed_file.EmbedFileData')
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@ -0,0 +1,3 @@
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vlib/v/checker/tests/comptime_env/env_parser_errors_1.vv:1:3: error: supply an env variable name like HOME, PATH or USER
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1 | #flag -I $env('')/xyz
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| ~~~~~~~~~~~~~~~~~~~
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@ -0,0 +1 @@
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#flag -I $env('')/xyz
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@ -0,0 +1,3 @@
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vlib/v/checker/tests/comptime_env/env_parser_errors_2.vv:1:3: error: cannot use string interpolation in compile time $env() expression
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1 | #flag -I $env('$ABC')/xyz
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| ~~~~~~~~~~~~~~~~~~~~~~~
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@ -0,0 +1 @@
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#flag -I $env('$ABC')/xyz
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@ -0,0 +1,3 @@
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vlib/v/checker/tests/comptime_env/env_parser_errors_3.vv:1:3: error: no "$env('...')" could be found in "-I $env()/xyz".
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1 | #flag -I $env()/xyz
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| ~~~~~~~~~~~~~~~~~
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@ -0,0 +1 @@
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#flag -I $env()/xyz
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@ -0,0 +1,11 @@
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vlib/v/checker/tests/comptime_env/using_comptime_env.vv:1:3: error: the environment variable "VAR" does not exist.
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1 | #flag -I $env('VAR')/xyz
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| ~~~~~~~~~~~~~~~~~~~~~~
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2 | #include "$env('VAR')/stdio.h"
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3 |
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vlib/v/checker/tests/comptime_env/using_comptime_env.vv:2:3: error: the environment variable "VAR" does not exist.
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1 | #flag -I $env('VAR')/xyz
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2 | #include "$env('VAR')/stdio.h"
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| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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3 |
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4 | fn main() {
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@ -0,0 +1,2 @@
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/usr/include
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done
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@ -0,0 +1 @@
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builder error: '/opt/invalid/path/stdio.h' not found
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@ -0,0 +1,8 @@
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#flag -I $env('VAR')/xyz
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#include "$env('VAR')/stdio.h"
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fn main() {
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env := $env('VAR')
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println(env)
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println('done')
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}
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@ -19,6 +19,8 @@ const turn_off_vcolors = os.setenv('VCOLORS', 'never', true)
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const should_autofix = os.getenv('VAUTOFIX') != ''
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const github_job = os.getenv('GITHUB_JOB')
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struct TaskDescription {
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vexe string
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dir string
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@ -26,12 +28,23 @@ struct TaskDescription {
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result_extension string
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path string
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mut:
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is_error bool
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is_skipped bool
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is_module bool
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expected string
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found___ string
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took time.Duration
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is_error bool
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is_skipped bool
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is_module bool
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expected string
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expected_out_path string
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found___ string
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took time.Duration
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cli_cmd string
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}
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struct Tasks {
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vexe string
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parallel_jobs int // 0 is using VJOBS, anything else is an override
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label string
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mut:
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show_cmd bool
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all []TaskDescription
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}
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fn test_all() {
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@ -52,28 +65,51 @@ fn test_all() {
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module_tests := get_tests_in_dir(module_dir, true)
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run_tests := get_tests_in_dir(run_dir, false)
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// -prod is used for the parser and checker tests, so that warns are errors
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mut tasks := []TaskDescription{}
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tasks.add(vexe, parser_dir, '-prod', '.out', parser_tests, false)
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tasks.add(vexe, checker_dir, '-prod', '.out', checker_tests, false)
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tasks.add(vexe, scanner_dir, '-prod', '.out', scanner_tests, false)
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tasks.add(vexe, checker_dir, '-d mysymbol run', '.mysymbol.run.out', ['custom_comptime_define_error.vv'],
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mut tasks := Tasks{
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vexe: vexe
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label: 'all tests'
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}
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tasks.add('', parser_dir, '-prod', '.out', parser_tests, false)
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tasks.add('', checker_dir, '-prod', '.out', checker_tests, false)
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tasks.add('', scanner_dir, '-prod', '.out', scanner_tests, false)
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tasks.add('', checker_dir, '-d mysymbol run', '.mysymbol.run.out', ['custom_comptime_define_error.vv'],
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false)
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tasks.add(vexe, checker_dir, '-d mydebug run', '.mydebug.run.out', ['custom_comptime_define_if_flag.vv'],
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tasks.add('', checker_dir, '-d mydebug run', '.mydebug.run.out', ['custom_comptime_define_if_flag.vv'],
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false)
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tasks.add(vexe, checker_dir, '-d nodebug run', '.nodebug.run.out', ['custom_comptime_define_if_flag.vv'],
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tasks.add('', checker_dir, '-d nodebug run', '.nodebug.run.out', ['custom_comptime_define_if_flag.vv'],
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false)
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tasks.add(vexe, checker_dir, '--enable-globals run', '.run.out', ['globals_error.vv'],
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tasks.add('', checker_dir, '--enable-globals run', '.run.out', ['globals_error.vv'],
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false)
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tasks.add(vexe, global_dir, '--enable-globals', '.out', global_tests, false)
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tasks.add(vexe, module_dir, '-prod run', '.out', module_tests, true)
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tasks.add(vexe, run_dir, 'run', '.run.out', run_tests, false)
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tasks.add('', global_dir, '--enable-globals', '.out', global_tests, false)
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tasks.add('', module_dir, '-prod run', '.out', module_tests, true)
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tasks.add('', run_dir, 'run', '.run.out', run_tests, false)
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tasks.run()
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if github_job == 'ubuntu-tcc' {
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// these should be run serially, since they depend on setting and using environment variables
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mut cte_tasks := Tasks{
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vexe: vexe
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parallel_jobs: 1
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label: 'comptime env tests'
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}
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cte_dir := '$checker_dir/comptime_env'
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files := get_tests_in_dir(cte_dir, false)
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cte_tasks.add('', cte_dir, '-no-retry-compilation run', '.run.out', files, false)
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cte_tasks.add('VAR=/usr/include $vexe', cte_dir, '-no-retry-compilation run',
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'.var.run.out', ['using_comptime_env.vv'], false)
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cte_tasks.add('VAR=/opt/invalid/path $vexe', cte_dir, '-no-retry-compilation run',
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'.var_invalid.run.out', ['using_comptime_env.vv'], false)
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cte_tasks.run()
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}
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}
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fn (mut tasks []TaskDescription) add(vexe string, dir string, voptions string, result_extension string, tests []string, is_module bool) {
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fn (mut tasks Tasks) add(custom_vexe string, dir string, voptions string, result_extension string, tests []string, is_module bool) {
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mut vexe := tasks.vexe
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if custom_vexe != '' {
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vexe = custom_vexe
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}
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paths := vtest.filter_vtest_only(tests, basepath: dir)
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for path in paths {
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tasks << TaskDescription{
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tasks.all << TaskDescription{
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vexe: vexe
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dir: dir
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voptions: voptions
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@ -89,12 +125,13 @@ fn bstep_message(mut bench benchmark.Benchmark, label string, msg string, sdurat
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}
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// process an array of tasks in parallel, using no more than vjobs worker threads
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fn (mut tasks []TaskDescription) run() {
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vjobs := runtime.nr_jobs()
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fn (mut tasks Tasks) run() {
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tasks.show_cmd = os.getenv('VTEST_SHOW_CMD') != ''
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vjobs := if tasks.parallel_jobs > 0 { tasks.parallel_jobs } else { runtime.nr_jobs() }
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mut bench := benchmark.new_benchmark()
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bench.set_total_expected_steps(tasks.len)
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mut work := sync.new_channel<TaskDescription>(tasks.len)
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mut results := sync.new_channel<TaskDescription>(tasks.len)
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bench.set_total_expected_steps(tasks.all.len)
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mut work := sync.new_channel<TaskDescription>(tasks.all.len)
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mut results := sync.new_channel<TaskDescription>(tasks.all.len)
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mut m_skip_files := skip_files.clone()
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if os.getenv('V_CI_UBUNTU_MUSL').len > 0 {
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m_skip_files << skip_on_ubuntu_musl
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@ -109,18 +146,18 @@ fn (mut tasks []TaskDescription) run() {
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m_skip_files << 'vlib/v/checker/tests/missing_c_lib_header_1.vv'
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m_skip_files << 'vlib/v/checker/tests/missing_c_lib_header_with_explanation_2.vv'
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}
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for i in 0 .. tasks.len {
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if tasks[i].path in m_skip_files {
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tasks[i].is_skipped = true
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for i in 0 .. tasks.all.len {
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if tasks.all[i].path in m_skip_files {
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tasks.all[i].is_skipped = true
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}
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unsafe { work.push(&tasks[i]) }
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unsafe { work.push(&tasks.all[i]) }
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}
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work.close()
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for _ in 0 .. vjobs {
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go work_processor(mut work, mut results)
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}
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mut total_errors := 0
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for _ in 0 .. tasks.len {
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for _ in 0 .. tasks.all.len {
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mut task := TaskDescription{}
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results.pop(&task)
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bench.step()
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@ -134,6 +171,9 @@ fn (mut tasks []TaskDescription) run() {
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bench.fail()
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eprintln(bstep_message(mut bench, benchmark.b_fail, task.path, task.took))
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println('============')
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println('failed cmd: $task.cli_cmd')
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println('expected_out_path: $task.expected_out_path')
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println('============')
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println('expected:')
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println(task.expected)
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println('============')
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@ -143,12 +183,17 @@ fn (mut tasks []TaskDescription) run() {
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diff_content(task.expected, task.found___)
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} else {
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bench.ok()
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eprintln(bstep_message(mut bench, benchmark.b_ok, task.path, task.took))
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if tasks.show_cmd {
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eprintln(bstep_message(mut bench, benchmark.b_ok, '$task.cli_cmd $task.path',
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task.took))
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} else {
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eprintln(bstep_message(mut bench, benchmark.b_ok, task.path, task.took))
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}
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}
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}
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bench.stop()
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eprintln(term.h_divider('-'))
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eprintln(bench.total_message('all tests'))
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eprintln(bench.total_message(tasks.label))
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if total_errors != 0 {
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exit(1)
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}
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@ -178,6 +223,8 @@ fn (mut task TaskDescription) execute() {
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cli_cmd := '$task.vexe $task.voptions $program'
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res := os.exec(cli_cmd) or { panic(err) }
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expected_out_path := program.replace('.vv', '') + task.result_extension
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task.expected_out_path = expected_out_path
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task.cli_cmd = cli_cmd
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if should_autofix && !os.exists(expected_out_path) {
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os.write_file(expected_out_path, '') or { panic(err) }
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}
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@ -1147,6 +1147,8 @@ pub fn (mut f Fmt) comptime_call(node ast.ComptimeCall) {
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} else {
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if node.is_embed {
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f.write("\$embed_file('$node.embed_file.rpath')")
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} else if node.is_env {
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f.write("\$env('$node.args_var')")
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} else {
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method_expr := if node.has_parens {
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'(${node.method_name}($node.args_var))'
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@ -3,6 +3,7 @@
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// that can be found in the LICENSE file.
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module gen
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import os
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import v.ast
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import v.table
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import v.util
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@ -29,9 +30,16 @@ fn (mut g Gen) comptime_selector(node ast.ComptimeSelector) {
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fn (mut g Gen) comptime_call(node ast.ComptimeCall) {
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if node.is_embed {
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// $embed_file('/path/to/file')
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g.gen_embed_file_init(node)
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return
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}
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if node.method_name == 'env' {
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// $env('ENV_VAR_NAME')
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val := util.cescaped_path(os.getenv(node.args_var))
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g.write('_SLIT("$val")')
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return
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}
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if node.is_vweb {
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is_html := node.method_name == 'html'
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for stmt in node.vweb_tmpl.stmts {
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@ -11,7 +11,7 @@ import v.token
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import vweb.tmpl
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const (
|
||||
supported_comptime_calls = ['html', 'tmpl', 'embed_file']
|
||||
supported_comptime_calls = ['html', 'tmpl', 'env', 'embed_file']
|
||||
)
|
||||
|
||||
// // #include, #flag, #v
|
||||
|
|
@ -47,7 +47,7 @@ fn (mut p Parser) comp_call() ast.ComptimeCall {
|
|||
scope: 0
|
||||
}
|
||||
p.check(.dollar)
|
||||
error_msg := 'only `\$tmpl()`, `\$embed_file()` and `\$vweb.html()` comptime functions are supported right now'
|
||||
error_msg := 'only `\$tmpl()`, `\$env()`, `\$embed_file()` and `\$vweb.html()` comptime functions are supported right now'
|
||||
if p.peek_tok.kind == .dot {
|
||||
n := p.check_name() // skip `vweb.html()` TODO
|
||||
if n != 'vweb' {
|
||||
|
|
@ -63,6 +63,21 @@ fn (mut p Parser) comp_call() ast.ComptimeCall {
|
|||
}
|
||||
is_embed_file := n == 'embed_file'
|
||||
is_html := n == 'html'
|
||||
// $env('ENV_VAR_NAME')
|
||||
if n == 'env' {
|
||||
p.check(.lpar)
|
||||
spos := p.tok.position()
|
||||
s := p.tok.lit
|
||||
p.check(.string)
|
||||
p.check(.rpar)
|
||||
return ast.ComptimeCall{
|
||||
scope: 0
|
||||
method_name: n
|
||||
args_var: s
|
||||
is_env: true
|
||||
env_pos: spos
|
||||
}
|
||||
}
|
||||
p.check(.lpar)
|
||||
spos := p.tok.position()
|
||||
s := if is_html { '' } else { p.tok.lit }
|
||||
|
|
@ -70,12 +85,12 @@ fn (mut p Parser) comp_call() ast.ComptimeCall {
|
|||
p.check(.string)
|
||||
}
|
||||
p.check(.rpar)
|
||||
//
|
||||
// $embed_file('/path/to/file')
|
||||
if is_embed_file {
|
||||
mut epath := s
|
||||
// Validate that the epath exists, and that it is actually a file.
|
||||
if epath == '' {
|
||||
p.error_with_pos('please supply a valid relative or absolute file path to the file to embed',
|
||||
p.error_with_pos('supply a valid relative or absolute file path to the file to embed',
|
||||
spos)
|
||||
return err_node
|
||||
}
|
||||
|
|
|
|||
|
|
@ -120,6 +120,49 @@ pub fn resolve_vroot(str string, dir string) ?string {
|
|||
return str.replace('@VROOT', os.real_path(vmod_path))
|
||||
}
|
||||
|
||||
// resolve_env_value replaces all occurrences of `$env('ENV_VAR_NAME')`
|
||||
// in `str` with the value of the env variable `$ENV_VAR_NAME`.
|
||||
pub fn resolve_env_value(str string, check_for_presence bool) ?string {
|
||||
env_ident := "\$env('"
|
||||
at := str.index(env_ident) or {
|
||||
return error('no "$env_ident' + '...\')" could be found in "$str".')
|
||||
}
|
||||
mut ch := byte(`.`)
|
||||
mut env_lit := ''
|
||||
for i := at + env_ident.len; i < str.len && ch != `)`; i++ {
|
||||
ch = byte(str[i])
|
||||
if ch.is_letter() || ch.is_digit() || ch == `_` {
|
||||
env_lit += ch.ascii_str()
|
||||
} else {
|
||||
if !(ch == `\'` || ch == `)`) {
|
||||
if ch == `$` {
|
||||
return error('cannot use string interpolation in compile time \$env() expression')
|
||||
}
|
||||
return error('invalid environment variable name in "$str", invalid character "$ch.ascii_str()"')
|
||||
}
|
||||
}
|
||||
}
|
||||
if env_lit == '' {
|
||||
return error('supply an env variable name like HOME, PATH or USER')
|
||||
}
|
||||
mut env_value := ''
|
||||
if check_for_presence {
|
||||
env_value = os.environ()[env_lit] or {
|
||||
return error('the environment variable "$env_lit" does not exist.')
|
||||
}
|
||||
if env_value == '' {
|
||||
return error('the environment variable "$env_lit" is empty.')
|
||||
}
|
||||
} else {
|
||||
env_value = os.getenv(env_lit)
|
||||
}
|
||||
rep := str.replace_once(env_ident + env_lit + "'" + ')', env_value)
|
||||
if rep.contains(env_ident) {
|
||||
return resolve_env_value(rep, check_for_presence)
|
||||
}
|
||||
return rep
|
||||
}
|
||||
|
||||
// launch_tool - starts a V tool in a separate process, passing it the `args`.
|
||||
// All V tools are located in the cmd/tools folder, in files or folders prefixed by
|
||||
// the letter `v`, followed by the tool name, i.e. `cmd/tools/vdoc/` or `cmd/tools/vpm.v`.
|
||||
|
|
|
|||
Loading…
Reference in New Issue