Add existing to tracked

2026-08-11 09:53:42 -04:00
parent afe07f3055
commit ffd6e3d73c
8531 changed files with 4396230 additions and 0 deletions
@@ -0,0 +1,108 @@
+'use strict'
+
+const u = require('universalify').fromPromise
+const path = require('path')
+const fs = require('../fs')
+
+const { mkdirs, mkdirsSync } = require('../mkdirs')
+
+const { symlinkPaths, symlinkPathsSync } = require('./symlink-paths')
+const { symlinkType, symlinkTypeSync } = require('./symlink-type')
+
+const { pathExists } = require('../path-exists')
+
+const { areIdentical } = require('../util/stat')
+
+async function createSymlink (srcpath, dstpath, type) {
+  let stats
+  try {
+    stats = await fs.lstat(dstpath)
+  } catch { }
+
+  if (stats && stats.isSymbolicLink()) {
+    // When srcpath is relative, resolve it relative to dstpath's directory
+    // (standard symlink behavior) or fall back to cwd if that doesn't exist
+    let srcStat
+    if (path.isAbsolute(srcpath)) {
+      srcStat = await fs.stat(srcpath, { bigint: true })
+    } else {
+      const dstdir = path.dirname(dstpath)
+      const relativeToDst = path.join(dstdir, srcpath)
+      try {
+        srcStat = await fs.stat(relativeToDst, { bigint: true })
+      } catch {
+        srcStat = await fs.stat(srcpath, { bigint: true })
+      }
+    }
+
+    // Following the existing symlink fails with ENOENT if it's broken; in that
+    // case fall through so fs.symlink reports EEXIST, rather than leaking the
+    // stat ENOENT. Any other error is unexpected, so rethrow it.
+    let dstStat
+    try {
+      dstStat = await fs.stat(dstpath, { bigint: true })
+    } catch (err) {
+      if (err.code !== 'ENOENT') throw err
+    }
+    if (dstStat && areIdentical(srcStat, dstStat)) return
+  }
+
+  const relative = await symlinkPaths(srcpath, dstpath)
+  srcpath = relative.toDst
+  const toType = await symlinkType(relative.toCwd, type)
+  const dir = path.dirname(dstpath)
+
+  if (!(await pathExists(dir))) {
+    await mkdirs(dir)
+  }
+
+  return fs.symlink(srcpath, dstpath, toType)
+}
+
+function createSymlinkSync (srcpath, dstpath, type) {
+  let stats
+  try {
+    stats = fs.lstatSync(dstpath)
+  } catch { }
+  if (stats && stats.isSymbolicLink()) {
+    // When srcpath is relative, resolve it relative to dstpath's directory
+    // (standard symlink behavior) or fall back to cwd if that doesn't exist
+    let srcStat
+    if (path.isAbsolute(srcpath)) {
+      srcStat = fs.statSync(srcpath, { bigint: true })
+    } else {
+      const dstdir = path.dirname(dstpath)
+      const relativeToDst = path.join(dstdir, srcpath)
+      try {
+        srcStat = fs.statSync(relativeToDst, { bigint: true })
+      } catch {
+        srcStat = fs.statSync(srcpath, { bigint: true })
+      }
+    }
+
+    // Following the existing symlink fails with ENOENT if it's broken; in that
+    // case fall through so fs.symlinkSync reports EEXIST, rather than leaking the
+    // stat ENOENT. Any other error is unexpected, so rethrow it.
+    let dstStat
+    try {
+      dstStat = fs.statSync(dstpath, { bigint: true })
+    } catch (err) {
+      if (err.code !== 'ENOENT') throw err
+    }
+    if (dstStat && areIdentical(srcStat, dstStat)) return
+  }
+
+  const relative = symlinkPathsSync(srcpath, dstpath)
+  srcpath = relative.toDst
+  type = symlinkTypeSync(relative.toCwd, type)
+  const dir = path.dirname(dstpath)
+  const exists = fs.existsSync(dir)
+  if (exists) return fs.symlinkSync(srcpath, dstpath, type)
+  mkdirsSync(dir)
+  return fs.symlinkSync(srcpath, dstpath, type)
+}
+
+module.exports = {
+  createSymlink: u(createSymlink),
+  createSymlinkSync
+}