sh Files

This release introduces support for Zsh in the parser and formatter, which was tracked in issue [#120] alongside the label https://github.com/mvdan/sh/labels/zsh. While support is not complete, it should be far enough for many use cases.

This release also drops support for Go 1.24 and includes many other enhancements:

• cmd/shfmt
• Exit with a non-zero status when -l prints any filenames
• shfmt -version is now derived from the git current tag, dropping the -ldflags workaround
• syntax
• New nodes types and node fields are introduced alongside LangZsh
• LangVariant is now a bitset, allowing the use of sets like "Bash-like"
• Add InteractiveSeq and StmtsSeq iterator methods for Parser
• Stop exposing the internal buffer in Printer via struct embedding
• Support the use of brace expansions like declare {a,b}_c=value
• Fix a bug where POSIX and Bash incorrectly allowed empty command lists
• interp
• Add support for shopt -s dotglob and shopt -s extglob
• Add support for simple uses of !(expr) extended glob patterns
• Support more builtin flags for declare, type, read
• Fix various bugs relating to nulls, errors, and arrays
• expand
• Add Config.DotGlob and Config.ExtGlob for the interpreter
• Add Variable.Flags to get the one-character declare flags
• Do not force env vars on Windows to be uppercase
• Fix various bugs relating to glob pattern matching
• pattern
• Add GlobLeadingDot and ExtendedOperators for the interpreter
• Add NegExtGlobError to mark the use of !(expr) negation patterns

Consider becoming a sponsor if you benefit from the work that went into this release!

Binaries built on go version go1.26.1 linux/amd64 with:

CGO_ENABLED=0 go build -trimpath -ldflags="-w -s"

Note that this release no longer includes a sha256sums.txt asset; GitHub now provide digests natively.