Add PIPELINES environment variable to acceptance test framework (#3170)

## Changes
Added a new `PIPELINES` environment variable to the acceptance test
framework that provides a copy of the CLI binary named "pipelines". This
eliminates the need to manually install the pipelines CLI in test
scripts using `install-pipelines-cli` command.

- Modified `acceptance/acceptance_test.go` to create a copy of the CLI
binary as "pipelines" and set the `PIPELINES` environment variable
- Added path replacement for the PIPELINES binary in test output
normalization

## Why
Currently, test scripts that need to use the pipelines CLI must first
run `install-pipelines-cli` to create a local copy. This adds
unnecessary complexity and setup time to tests. By providing the
`PIPELINES` environment variable directly in the acceptance test
framework, tests can immediately use `$PIPELINES` without any
installation step, making tests simpler and faster.

This change follows the same pattern as the existing `CLI` environment
variable, providing consistency in how test binaries are made available
to test scripts.

## Tests
- All existing tests continue to pass, ensuring no regression, using new
`$PIPELINES`

Author: alyssa-db

acceptance/acceptance_test.go

@@ -165,6 +165,12 @@ func testAccept(t *testing.T, inprocessMode bool, singleTest string) int {
 	t.Setenv("CLI", execPath)
 	repls.SetPath(execPath, "[CLI]")
 
+	pipelinesPath := filepath.Join(buildDir, "pipelines") + exeSuffix
+	err = copyFile(execPath, pipelinesPath)
+	require.NoError(t, err)
+	t.Setenv("PIPELINES", pipelinesPath)
+	repls.SetPath(pipelinesPath, "[PIPELINES]")
+
 	paths := []string{
 		// Make helper scripts available
 		filepath.Join(cwd, "bin"),

acceptance/pipelines/init/error-cases/output.txt

@@ -1,10 +1,6 @@
 
-=== Install pipelines CLI
->>> errcode [CLI] install-pipelines-cli -d ./subdir
-pipelines successfully installed in directory "./subdir"
-
 === Test with missing config file
->>> errcode ./subdir/pipelines init --output-dir output
+>>> errcode [PIPELINES] init --output-dir output
 
 Welcome to the template for pipelines!
 
@@ -14,13 +10,13 @@ Your new project has been created in the 'my_project' directory!
 Refer to the README.md file for "getting started" instructions!
 
 === Test with invalid project name (contains uppercase letters)
->>> errcode ./subdir/pipelines init --config-file ./invalid_input.json --output-dir invalid-output
+>>> errcode [PIPELINES] init --config-file ./invalid_input.json --output-dir invalid-output
 Error: failed to load config from file ./invalid_input.json: invalid value for project_name: "InvalidProjectName". Name must consist of lower case letters, numbers, and underscores.
 
 Exit code: 1
 
 === Test with non-existent config file
->>> errcode ./subdir/pipelines init --config-file ./nonexistent.json --output-dir invalid-output-2
+>>> errcode [PIPELINES] init --config-file ./nonexistent.json --output-dir invalid-output-2
 Error: failed to load config from file ./nonexistent.json: open ./nonexistent.json: no such file or directory
 
 Exit code: 1

acceptance/pipelines/init/error-cases/script

@@ -1,24 +1,15 @@
-tmpdir="./subdir"
-pipelines="$tmpdir/pipelines"
-mkdir -p $tmpdir
-
-title "Install pipelines CLI"
-trace errcode $CLI install-pipelines-cli -d $tmpdir
-
 title "Test with missing config file"
-trace errcode $pipelines init --output-dir output
+trace errcode $PIPELINES init --output-dir output
 
 title "Test with invalid project name (contains uppercase letters)"
 echo '{"project_name": "InvalidProjectName"}' > invalid_input.json
-trace errcode $pipelines init --config-file ./invalid_input.json --output-dir invalid-output
+trace errcode $PIPELINES init --config-file ./invalid_input.json --output-dir invalid-output
 
 title "Test with non-existent config file"
-trace errcode $pipelines init --config-file ./nonexistent.json --output-dir invalid-output-2
+trace errcode $PIPELINES init --config-file ./nonexistent.json --output-dir invalid-output-2
 
 # Do not affect this repository's git behaviour
 mv output/my_project/.gitignore output/my_project/out.gitignore
 
 # Clean up
 rm -f invalid_input.json
-rm -f $pipelines
-rm -rf $tmpdir

acceptance/pipelines/init/python/output.txt

@@ -1,10 +1,6 @@
 
-=== Install pipelines CLI
->>> errcode [CLI] install-pipelines-cli -d ./subdir
-pipelines successfully installed in directory "./subdir"
-
 === Test basic pipelines init with configuration file
->>> ./subdir/pipelines init --config-file ./input.json --output-dir output
+>>> [PIPELINES] init --config-file ./input.json --output-dir output
 
 Welcome to the template for pipelines!
 

acceptance/pipelines/init/python/script

@@ -1,14 +1,4 @@
-tmpdir="./subdir"
-pipelines="$tmpdir/pipelines"
-mkdir -p $tmpdir
-
-title "Install pipelines CLI"
-trace errcode $CLI install-pipelines-cli -d $tmpdir
-
 title "Test basic pipelines init with configuration file"
-trace $pipelines init --config-file ./input.json --output-dir output
+trace $PIPELINES init --config-file ./input.json --output-dir output
 
 mv output/my_python_project/.gitignore output/my_python_project/out.gitignore
-
-rm -f $pipelines
-rm -rf $tmpdir

acceptance/pipelines/init/sql/output.txt

@@ -1,10 +1,6 @@
 
-=== Install pipelines CLI
->>> errcode [CLI] install-pipelines-cli -d ./subdir
-pipelines successfully installed in directory "./subdir"
-
 === Test pipelines init with SQL configuration
->>> ./subdir/pipelines init --config-file ./input.json --output-dir output
+>>> [PIPELINES] init --config-file ./input.json --output-dir output
 
 Welcome to the template for pipelines!
 

acceptance/pipelines/init/sql/script

@@ -1,15 +1,5 @@
-tmpdir="./subdir"
-pipelines="$tmpdir/pipelines"
-mkdir -p $tmpdir
-
-title "Install pipelines CLI"
-trace errcode $CLI install-pipelines-cli -d $tmpdir
-
 title "Test pipelines init with SQL configuration"
-trace $pipelines init --config-file ./input.json --output-dir output
+trace $PIPELINES init --config-file ./input.json --output-dir output
 
 # Do not affect this repository's git behaviour
 mv output/my_sql_project/.gitignore output/my_sql_project/out.gitignore
-
-rm -f $pipelines
-rm -rf $tmpdir