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feat: ignore ENOENT errors during chown
Some files might be deleted during chownr. This commit ignore ENOENT errors to tolerate such cases to mimic 'chown -R'. Fixes npm/cli#496
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| if (!process.getuid || !process.getgid) { | ||
| throw new Error("Tests require getuid/getgid support") | ||
| } | ||
|
|
||
| var curUid = +process.getuid() | ||
| , curGid = +process.getgid() | ||
| , test = require("tap").test | ||
| , mkdirp = require("mkdirp") | ||
| , rimraf = require("rimraf") | ||
| , fs = require("fs") | ||
| , path = require("path") | ||
|
|
||
| // sniff the 'id' command for other groups that i can legally assign to | ||
| var exec = require("child_process").exec | ||
| , groups | ||
| , dirs = [] | ||
| , files = [] | ||
|
|
||
| // Monkey-patch fs.readdirSync to remove f1 before the callback happens | ||
| const readdirSync = fs.readdirSync | ||
|
|
||
| var chownr = require("../") | ||
|
|
||
| exec("id", function (code, output) { | ||
| if (code) throw new Error("failed to run 'id' command") | ||
| groups = output.trim().split("=")[3].split(",").map(function (s) { | ||
| return parseInt(s, 10) | ||
| }).filter(function (g) { | ||
| return g !== curGid | ||
| }) | ||
|
|
||
| // console.error([curUid, groups[0]], "uid, gid") | ||
|
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| rimraf("/tmp/chownr", function (er) { | ||
| if (er) throw er | ||
| var cnt = 5 | ||
| for (var i = 0; i < 5; i ++) { | ||
| mkdirp(getDir(), then) | ||
| } | ||
| function then (er, made) { | ||
| if (er) throw er | ||
| var f1 = path.join(made, "f1"); | ||
| files.push(f1) | ||
| fs.writeFileSync(f1, "file-1"); | ||
| var f2 = path.join(made, "f2"); | ||
| files.push(f2) | ||
| fs.writeFileSync(f2, "file-2"); | ||
| if (-- cnt === 0) { | ||
| runTest() | ||
| } | ||
| } | ||
| }) | ||
| }) | ||
|
|
||
| function getDir () { | ||
| var dir = "/tmp/chownr" | ||
|
|
||
| dir += "/" + Math.floor(Math.random() * Math.pow(16,4)).toString(16) | ||
| dirs.push(dir) | ||
| dir += "/" + Math.floor(Math.random() * Math.pow(16,4)).toString(16) | ||
| dirs.push(dir) | ||
| dir += "/" + Math.floor(Math.random() * Math.pow(16,4)).toString(16) | ||
| dirs.push(dir) | ||
| return dir | ||
| } | ||
|
|
||
| function runTest () { | ||
| test("patch fs.readdirSync", function (t) { | ||
| // Monkey-patch fs.readdirSync to remove f1 before returns | ||
| // This simulates the case where some files are deleted when chownr.sync | ||
| // is in progress | ||
| fs.readdirSync = function () { | ||
| const args = [].slice.call(arguments) | ||
| const dir = args[0] | ||
| const children = readdirSync.apply(fs, args); | ||
| try { | ||
| fs.unlinkSync(path.join(dir, 'f1')) | ||
| } catch (er) { | ||
| if (er.code !== 'ENOENT') throw er | ||
| } | ||
| return children | ||
| } | ||
| t.end() | ||
| }) | ||
|
|
||
| test("should complete successfully", function (t) { | ||
| // console.error("calling chownr", curUid, groups[0], typeof curUid, typeof groups[0]) | ||
| chownr.sync("/tmp/chownr", curUid, groups[0]) | ||
| t.end() | ||
| }) | ||
|
|
||
| test("restore fs.readdirSync", function (t) { | ||
| // Restore fs.readdirSync | ||
| fs.readdirSync = readdirSync | ||
| t.end() | ||
| }) | ||
|
|
||
| dirs.forEach(function (dir) { | ||
| test("verify "+dir, function (t) { | ||
| fs.stat(dir, function (er, st) { | ||
| if (er) { | ||
| t.ifError(er) | ||
| return t.end() | ||
| } | ||
| t.equal(st.uid, curUid, "uid should be " + curUid) | ||
| t.equal(st.gid, groups[0], "gid should be "+groups[0]) | ||
| t.end() | ||
| }) | ||
| }) | ||
| }) | ||
|
|
||
| files.forEach(function (f) { | ||
| test("verify "+f, function (t) { | ||
| fs.stat(f, function (er, st) { | ||
| if (er) { | ||
| if (er.code !== 'ENOENT') | ||
| t.ifError(er) | ||
| return t.end() | ||
| } | ||
| t.equal(st.uid, curUid, "uid should be " + curUid) | ||
| t.equal(st.gid, groups[0], "gid should be "+groups[0]) | ||
| t.end() | ||
| }) | ||
| }) | ||
| }) | ||
|
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||
| test("cleanup", function (t) { | ||
| rimraf("/tmp/chownr/", function (er) { | ||
| t.ifError(er) | ||
| t.end() | ||
| }) | ||
| }) | ||
| } | ||
|
|
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