test: lake: add manifest version upgrade test

src/lake/tests/manifest/bar/lakefile.lean

@@ -0,0 +1,3 @@
+import Lake
+open Lake DSL
+package bar

src/lake/tests/manifest/clean.sh

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+rm -rf lakefile.olean foo/lakefile.olean bar/.git lake-packages lake-manifest.json

src/lake/tests/manifest/foo/lakefile.lean

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+import Lake
+open Lake DSL
+package foo

src/lake/tests/manifest/lake-manifest-v5.json

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+{"version": 5,
+ "packagesDir": "lake-packages",
+ "packages":
+ [{"git":
+   {"url": "bar",
+    "subDir?": null,
+    "rev": "253735aaee71d8bb0f29ae5cfc3ce086a4b9e64f",
+    "opts": {},
+    "name": "bar",
+    "inputRev?": null,
+    "inherited": false}},
+  {"path": {"opts": {}, "name": "foo", "inherited": false, "dir": ".\\foo"}}]}

src/lake/tests/manifest/lake-manifest-v6.json

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+{"version": 6,
+ "packagesDir": "lake-packages",
+ "packages":
+ [{"path": {"opts": {}, "name": "foo", "inherited": false, "dir": ".\\foo"}},
+  {"git":
+   {"url": "bar",
+    "subDir?": null,
+    "rev": "dab525a78710d185f3d23622b143bdd837e44ab0",
+    "opts": {},
+    "name": "bar",
+    "inputRev?": null,
+    "inherited": false}}],
+ "name": "test"}

src/lake/tests/manifest/lake-manifest-v7.json

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+{"version": 7,
+ "packagesDir": "lake-packages",
+ "packages":
+ [{"type": "path",
+   "name": "foo",
+   "manifestFile": "lake-manifest.json",
+   "inherited": false,
+   "dir": ".\\foo",
+   "configFile": "lakefile.lean"},
+  {"url": "bar",
+   "type": "git",
+   "subDir": null,
+   "rev": "0538596b94a0510f55dc820cabd3bde41ad93c3e",
+   "name": "bar",
+   "manifestFile": "lake-manifest.json",
+   "inputRev": null,
+   "inherited": false,
+   "configFile": "lakefile.lean"}],
+ "name": "test"}

src/lake/tests/manifest/lakefile.lean

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+import Lake
+open Lake DSL
+
+package test
+
+require foo from "foo"
+require bar from git "bar"

src/lake/tests/manifest/test.sh

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+#!/usr/bin/env bash
+set -exo pipefail
+
+LAKE=${LAKE:-../../build/bin/lake}
+
+if [ "`uname`" = Darwin ]; then
+  sed_i() { sed -i '' "$@"; }
+else
+  sed_i() { sed -i "$@"; }
+fi
+
+./clean.sh
+
+# Since committing a Git repository to a Git repository is not well-supported,
+# We reinitialize the bar repository on each test. This requires updating the
+# locked manifest to the new hash to ensure things work properly.
+pushd bar
+git init
+git checkout -b master
+git config user.name test
+git config user.email [email protected]
+git add --all
+git commit -m "initial commit"
+REV=`git rev-parse HEAD`
+popd
+
+# ---
+# Test manifest properly upgrades from supported versions
+# ---
+
+# Test successful loading of a V5 manifest
+cp lake-manifest-v5.json lake-manifest.json
+sed_i "s/253735aaee71d8bb0f29ae5cfc3ce086a4b9e64f/$REV/g" lake-manifest.json
+$LAKE resolve-deps
+
+# Test update produces the expected V7 manifest
+$LAKE update
+sed_i "s/$REV/0538596b94a0510f55dc820cabd3bde41ad93c3e/g" lake-manifest.json
+diff --strip-trailing-cr lake-manifest-v7.json lake-manifest.json
+
+# Test successful loading of a V6 manifest
+cp lake-manifest-v6.json lake-manifest.json
+sed_i "s/dab525a78710d185f3d23622b143bdd837e44ab0/$REV/g" lake-manifest.json
+$LAKE resolve-deps
+
+# Test update produces the expected V7 manifest
+$LAKE update
+sed_i "s/$REV/0538596b94a0510f55dc820cabd3bde41ad93c3e/g" lake-manifest.json
+diff --strip-trailing-cr lake-manifest-v7.json lake-manifest.json