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author | Michaël Zasso <targos@protonmail.com> | 2017-12-22 16:53:42 +0100 |
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committer | Michaël Zasso <targos@protonmail.com> | 2018-01-11 09:48:05 +0100 |
commit | 3dc30632755713179f345f4af024bd904c6162d0 (patch) | |
tree | f28c4f6dd6dfc5992edf301449d1a371d229755b /tools/node_modules/eslint/node_modules/chalk/node_modules/supports-color/index.js | |
parent | a2c7085dd4a8e60d1a47572aca8bb6fcb7a32f88 (diff) | |
download | android-node-v8-3dc30632755713179f345f4af024bd904c6162d0.tar.gz android-node-v8-3dc30632755713179f345f4af024bd904c6162d0.tar.bz2 android-node-v8-3dc30632755713179f345f4af024bd904c6162d0.zip |
tools: move eslint from tools to tools/node_modules
This is required because we need to add the babel-eslint dependency
and it has to be able to resolve "eslint".
babel-eslint is required to support future ES features such as async
iterators and import.meta.
Refs: https://github.com/nodejs/node/pull/17755
PR-URL: https://github.com/nodejs/node/pull/17820
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Diffstat (limited to 'tools/node_modules/eslint/node_modules/chalk/node_modules/supports-color/index.js')
-rw-r--r-- | tools/node_modules/eslint/node_modules/chalk/node_modules/supports-color/index.js | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/tools/node_modules/eslint/node_modules/chalk/node_modules/supports-color/index.js b/tools/node_modules/eslint/node_modules/chalk/node_modules/supports-color/index.js new file mode 100644 index 0000000000..20a29230e8 --- /dev/null +++ b/tools/node_modules/eslint/node_modules/chalk/node_modules/supports-color/index.js @@ -0,0 +1,115 @@ +'use strict'; +const os = require('os'); +const hasFlag = require('has-flag'); + +const env = process.env; + +const support = level => { + if (level === 0) { + return false; + } + + return { + level, + hasBasic: true, + has256: level >= 2, + has16m: level >= 3 + }; +}; + +let supportLevel = (() => { + if (hasFlag('no-color') || + hasFlag('no-colors') || + hasFlag('color=false')) { + return 0; + } + + if (hasFlag('color=16m') || + hasFlag('color=full') || + hasFlag('color=truecolor')) { + return 3; + } + + if (hasFlag('color=256')) { + return 2; + } + + if (hasFlag('color') || + hasFlag('colors') || + hasFlag('color=true') || + hasFlag('color=always')) { + return 1; + } + + if (process.stdout && !process.stdout.isTTY) { + return 0; + } + + if (process.platform === 'win32') { + // Node.js 7.5.0 is the first version of Node.js to include a patch to + // libuv that enables 256 color output on Windows. Anything earlier and it + // won't work. However, here we target Node.js 8 at minimum as it is an LTS + // release, and Node.js 7 is not. Windows 10 build 10586 is the first Windows + // release that supports 256 colors. + const osRelease = os.release().split('.'); + if ( + Number(process.versions.node.split('.')[0]) >= 8 && + Number(osRelease[0]) >= 10 && + Number(osRelease[2]) >= 10586 + ) { + return 2; + } + + return 1; + } + + if ('CI' in env) { + if (['TRAVIS', 'CIRCLECI', 'APPVEYOR', 'GITLAB_CI'].some(sign => sign in env) || env.CI_NAME === 'codeship') { + return 1; + } + + return 0; + } + + if ('TEAMCITY_VERSION' in env) { + return /^(9\.(0*[1-9]\d*)\.|\d{2,}\.)/.test(env.TEAMCITY_VERSION) ? 1 : 0; + } + + if ('TERM_PROGRAM' in env) { + const version = parseInt((env.TERM_PROGRAM_VERSION || '').split('.')[0], 10); + + switch (env.TERM_PROGRAM) { + case 'iTerm.app': + return version >= 3 ? 3 : 2; + case 'Hyper': + return 3; + case 'Apple_Terminal': + return 2; + // No default + } + } + + if (/-256(color)?$/i.test(env.TERM)) { + return 2; + } + + if (/^screen|^xterm|^vt100|^rxvt|color|ansi|cygwin|linux/i.test(env.TERM)) { + return 1; + } + + if ('COLORTERM' in env) { + return 1; + } + + if (env.TERM === 'dumb') { + return 0; + } + + return 0; +})(); + +if ('FORCE_COLOR' in env) { + supportLevel = parseInt(env.FORCE_COLOR, 10) === 0 ? 0 : (supportLevel || 1); +} + +module.exports = process && support(supportLevel); |