Run Crypto abi-check in TF-PSA-Crypto PRs

Running the TLS ABI check doesn't do much, since both HEAD and FETCH_HEAD
point to the same commit in a Crypto PR-merge job.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>

Author: bensze01

src/org/mbed/tls/jenkins/BranchInfo.groovy

@@ -32,6 +32,11 @@ class BranchInfo {
      *  if no platform has been chosen yet. */
     public Map<String, String> all_sh_components
 
+    /** Whether scripts/abi_check.py is available.
+     *  Should only be necessary temporary, while we add ABI check support to
+     *  TF PSA Crypto */
+    public boolean has_branch_info
+
     /** Whether scripts/min_requirements.py is available. Older branches don't
      *  have it, so they only get what's hard-coded in the docker files on Linux,
      *  and bare python on other platforms. */
@@ -72,6 +77,7 @@ class BranchInfo {
         this.stash = ''
         this.framework_override = ''
         this.all_sh_components = [:]
+        this.has_branch_info = false
         this.has_min_requirements = false
         this.python_requirements_override_content = ''
         this.python_requirements_override_file = ''

vars/common.groovy

@@ -284,6 +284,9 @@ List<BranchInfo> get_branch_information(Collection<String> tls_branches, Collect
                             deleteDir()
                             checkout_repo.checkout_repo(info)
 
+                            // If a TLS branch doesn't have scripts/abi_check.py, something has gone wrong.
+                            info.has_branch_info = repo == 'tls' || fileExists('scripts/abi_check.py')
+
                             info.has_min_requirements = fileExists('scripts/min_requirements.py')
 
                             if (info.has_min_requirements) {

vars/mbedtls.groovy

@@ -33,7 +33,7 @@ void run_tls_tests(Collection<BranchInfo> infos) {
         infos.each { info ->
             jobs << gen_jobs.gen_release_jobs(info, false)
 
-            if (env.RUN_ABI_CHECK == "true" && info.repo == 'tls') {
+            if (env.RUN_ABI_CHECK == 'true' && info.repo == env.TARGET_REPO && info.has_branch_info) {
                 jobs << gen_jobs.gen_abi_api_checking_job(info, 'ubuntu-18.04-amd64')
             }
         }