gtools cabal download aeson bytestring text mtl -o ./offline-cache
Combine with --with-deps to fetch the entire transitive closure:
gtools cabal download servant-server --with-deps -o ./servant-bundle
echo "packages: ./myapp-src/*/" > cabal.project echo "source-repository-package" >> cabal.project echo " type: local" >> cabal.project echo " location: ./myapp-src/http-client-0.7.0" >> cabal.project cabal build
gtools cabal download makes step 1 trivial—without having to manually resolve dependency versions.
The gtools cabal download command is not a standalone command. Instead, you use cabal to download, build, and install the package. Here’s what you need first: gtools cabal download
If you are looking for academic papers regarding the Cabal build system and package management, the primary citation is:
Given a cabal.project.freeze or a set of constraints:
gtools cabal download warp \
--constraint="warp ==3.3.13" \
--constraint="http-types <0.13" \
-o ./pinned-warp
This resolves the exact revision from Hackage that satisfies the constraints—useful for debugging “could not resolve dependencies” errors. gtools cabal download aeson bytestring text mtl -o
GitHub Actions example caching the entire dependency source tree:
- name: Cache Haskell dependencies (source)
id: cache-cabal
uses: actions/cache@v3
with:
path: ~/.cache/gtools/cabal-sources
key: $ runner.os -cabal-src-$ hashFiles('cabal.project.freeze')
This caches source code, not just compiled artifacts, enabling offline rebuilds or patching without hitting Hackage.
The term "gtools" is not a standard part of the core Cabal library. It likely refers to one of the following: Combine with --with-deps to fetch the entire transitive
A. A Specific Haskell Package (gtools)
There may be a specific user-created package named gtools on Hackage (the Haskell package repository). If you are trying to download this specific package, the command is:
cabal update
cabal install gtools
B. Google Tools (gtools)
Often, "gtools" refers to Google Tools or Google Android tools. If you are looking for a paper on how to manage these within a Haskell environment, you would typically use Cabal to bind to these libraries, but there is no singular "Cabal Gtools Paper."
C. Typo for "GHC Tools" or "Get Tools"
If "gtools" was a typo for GHC Tools (the Glasgow Haskell Compiler tools), the relevant documentation would be the GHC User Guide. If you meant "Get Tools" (as in, how to get Cabal), the documentation is the Cabal Installation Guide.