added backend and login portal

1 files changed, 47 insertions, 0 deletions

diff --git a/backend/node_modules/semver/ranges/simplify.js b/backend/node_modules/semver/ranges/simplify.js
new file mode 100644
index 0000000..618d5b6
--- /dev/null
+++ b/backend/node_modules/semver/ranges/simplify.js
@@ -0,0 +1,47 @@
+// given a set of versions and a range, create a "simplified" range
+// that includes the same versions that the original range does
+// If the original range is shorter than the simplified one, return that.
+const satisfies = require('../functions/satisfies.js')
+const compare = require('../functions/compare.js')
+module.exports = (versions, range, options) => {
+  const set = []
+  let first = null
+  let prev = null
+  const v = versions.sort((a, b) => compare(a, b, options))
+  for (const version of v) {
+    const included = satisfies(version, range, options)
+    if (included) {
+      prev = version
+      if (!first) {
+        first = version
+      }
+    } else {
+      if (prev) {
+        set.push([first, prev])
+      }
+      prev = null
+      first = null
+    }
+  }
+  if (first) {
+    set.push([first, null])
+  }
+
+  const ranges = []
+  for (const [min, max] of set) {
+    if (min === max) {
+      ranges.push(min)
+    } else if (!max && min === v[0]) {
+      ranges.push('*')
+    } else if (!max) {
+      ranges.push(`>=${min}`)
+    } else if (min === v[0]) {
+      ranges.push(`<=${max}`)
+    } else {
+      ranges.push(`${min} - ${max}`)
+    }
+  }
+  const simplified = ranges.join(' || ')
+  const original = typeof range.raw === 'string' ? range.raw : String(range)
+  return simplified.length < original.length ? simplified : range
+}