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bake: add semvercmp func to stdlib

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Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>
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CrazyMax
2026-01-06 09:34:10 +01:00
parent 2bcb098cbb
commit 3836aeb949
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docs/bake-stdlib.md
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@@ -79,6 +79,7 @@ title: Bake standard library functions
| [`reverselist`](#reverselist) | Returns the given list with its elements in reverse order. |
| [`rsadecrypt`](#rsadecrypt) | Decrypts an RSA-encrypted ciphertext. |
| [`sanitize`](#sanitize) | Replaces all non-alphanumeric characters with a underscore, leaving only characters that are valid for a Bake target name. |
| [`semvercmp`](#semvercmp) | Returns true if version satisfies a constraint. |
| [`sethaselement`](#sethaselement) | Returns true if the given set contains the given element, or false otherwise. |
| [`setintersection`](#setintersection) | Returns the intersection of all given sets. |
| [`setproduct`](#setproduct) | Calculates the cartesian product of two or more sets. |
@@ -1065,6 +1066,31 @@ target "webapp-dev" {
}
```
## `semvercmp`
This function checks if a semantic version fits within a set of constraints.
See [Checking Version Constraints](https://github.com/Masterminds/semver?tab=readme-ov-file#checking-version-constraints)
for details.
```hcl
# docker-bake.hcl
variable "ALPINE_VERSION" {
default = "3.23"
}
target "webapp-dev" {
dockerfile = "Dockerfile.webapp"
platforms = semvercmp(ALPINE_VERSION, ">= 3.20") ? [
"linux/amd64",
"linux/arm64",
"linux/riscv64"
] : [
"linux/amd64",
"linux/arm64"
]
}
```
## `sethaselement`
```hcl