Added a --dry-run flag that compiles and steps through each task, but does not execute them. The commands that would have been run are printed. See #125.
Also, fix handling of Taskfile by making the version an instance of
`semver.Constraints` instead of `semver.Version`. This makes the version
works as described on TASKFILE_VERSIONS.md document, i.e. version "2" will
include "2.x" features but version "2.0" not.
Instead of giving an error on multiline results from sh, the results are
now stored as is, except that the last newline is stripped away to make
the output of most commands easy to use in shell commands.
Two helper functions have been added to help deal with multi-line
results. In addition, previous PascalCase template function names have
been renamed to camelCase for consistency with the sprig lib.
With a recent commit, template evaluation for variables in tasks got
broken. This reindroudces temmplate evaluation in taks, and resolves
a series of issues that where previouisly present on master, such as:
- Taskvars did not get evaluated as templates.
- Taskvars would, in contrast to the documentation, _override_ task
variables for the taks called directly via `Executor.Run(args
...string)`. This caused different behaviour in the "default" task
v.s. other tasks.
This commit ensures:
- Priority order for variables is now according to the documentation,
also for the "default" task.
- Variables gets resolved in a particular order to ensure logical
access to varaibles on template compile time, and that template
compilation finds place _before_ resolution of dynamic variables.
This change also allows the following to work:
task:
vars:
A: "52"
B: "{{.A}}"
However, the following will always replace C with the uncompiled
`{{.A}}`:
task:
vars:
A: "52"
C: "{{.B}}"
B: "{{.A}}"
Several tests have also been added to prevent this feature from breaking
again. This should hopefully finally resolve issue #40.
this is the first big step of #45
now t.ReplaceVariable will return a copy of the task, but with variables
replaced
now we don't need to replace variables everywhere in the code, and will
make other refactorings easier
