Catch OSError in gen_git_source.py subprocess call.
Catch OSError in gen_git_source.py subprocess call.

OSError occurs if git cannot be found. This is a initial fix for some
Windows build errors.

PiperOrigin-RevId: 193407250

lukeiwanski/tensorflow,kobejean/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,Intel-tensorflow/tensorflow,ghchinoy/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,davidzchen/tensorflow,yongtang/tensorflow,davidzchen/tensorflow,apark263/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,caisq/tensorflow,annarev/tensorflow,gunan/tensorflow,sarvex/tensorflow,snnn/tensorflow,jalexvig/tensorflow,meteorcloudy/tensorflow,dongjoon-hyun/tensorflow,yanchen036/tensorflow,frreiss/tensorflow-fred,alsrgv/tensorflow,jhseu/tensorflow,renyi533/tensorflow,aam-at/tensorflow,dongjoon-hyun/tensorflow,adit-chandra/tensorflow,aam-at/tensorflow,ghchinoy/tensorflow,ageron/tensorflow,lukeiwanski/tensorflow,alshedivat/tensorflow,alsrgv/tensorflow,dancingdan/tensorflow,dongjoon-hyun/tensorflow,jbedorf/tensorflow,dongjoon-hyun/tensorflow,gunan/tensorflow,girving/tensorflow,nburn42/tensorflow,ghchinoy/tensorflow,aselle/tensorflow,nburn42/tensorflow,freedomtan/tensorflow,manipopopo/tensorflow,DavidNorman/tensorflow,gautam1858/tensorflow,AnishShah/tensorflow,seanli9jan/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,theflofly/tensorflow,ZhangXinNan/tensorflow,aam-at/tensorflow,lukeiwanski/tensorflow,Bismarrck/tensorflow,jart/tensorflow,chemelnucfin/tensorflow,xzturn/tensorflow,aldian/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,dancingdan/tensorflow,jart/tensorflow,xzturn/tensorflow,xzturn/tensorflow,brchiu/tensorflow,kevin-coder/tensorflow-fork,brchiu/tensorflow,theflofly/tensorflow,adit-chandra/tensorflow,Intel-tensorflow/tensorflow,xodus7/tensorflow,hfp/tensorflow-xsmm,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-pywrap_saved_model,hfp/tensorflow-xsmm,arborh/tensorflow,aselle/tensorflow,asimshankar/tensorflow,paolodedios/tensorflow,DavidNorman/tensorflow,paolodedios/tensorflow,caisq/tensorflow,xodus7/tensorflow,xzturn/tensorflow,Bismarrck/tensorflow,sarvex/tensorflow,nburn42/tensorflow,dendisuhubdy/tensorflow,AnishShah/tensorflow,snnn/tensorflow,petewarden/tensorflow,chemelnucfin/tensorflow,adit-chandra/tensorflow,jendap/tensorflow,ghchinoy/tensorflow,manipopopo/tensorflow,asimshankar/tensorflow,alsrgv/tensorflow,jbedorf/tensorflow,jbedorf/tensorflow,ghchinoy/tensorflow,hfp/tensorflow-xsmm,gunan/tensorflow,freedomtan/tensorflow,Bismarrck/tensorflow,snnn/tensorflow,aselle/tensorflow,snnn/tensorflow,asimshankar/tensorflow,renyi533/tensorflow,kobejean/tensorflow,adit-chandra/tensorflow,dendisuhubdy/tensorflow,meteorcloudy/tensorflow,alshedivat/tensorflow,apark263/tensorflow,gojira/tensorflow,jhseu/tensorflow,hehongliang/tensorflow,jbedorf/tensorflow,paolodedios/tensorflow,xzturn/tensorflow,tensorflow/tensorflow-pywrap_saved_model,frreiss/tensorflow-fred,Intel-Corporation/tensorflow,karllessard/tensorflow,jendap/tensorflow,ageron/tensorflow,meteorcloudy/tensorflow,jbedorf/tensorflow,xzturn/tensorflow,chemelnucfin/tensorflow,hehongliang/tensorflow,aselle/tensorflow,dongjoon-hyun/tensorflow,petewarden/tensorflow,aselle/tensorflow,gunan/tensorflow,sarvex/tensorflow,asimshankar/tensorflow,AnishShah/tensorflow,seanli9jan/tensorflow,Intel-Corporation/tensorflow,yongtang/tensorflow,yongtang/tensorflow,renyi533/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow,renyi533/tensorflow,jart/tensorflow,dancingdan/tensorflow,Bismarrck/tensorflow,seanli9jan/tensorflow,xodus7/tensorflow,jalexvig/tensorflow,xodus7/tensorflow,sarvex/tensorflow,alshedivat/tensorflow,aselle/tensorflow,girving/tensorflow,dendisuhubdy/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,ppwwyyxx/tensorflow,alsrgv/tensorflow,aam-at/tensorflow,karllessard/tensorflow,petewarden/tensorflow,drpngx/tensorflow,DavidNorman/tensorflow,kevin-coder/tensorflow-fork,petewarden/tensorflow,karllessard/tensorflow,ageron/tensorflow,xzturn/tensorflow,gunan/tensorflow,aldian/tensorflow,gunan/tensorflow,aam-at/tensorflow,hehongliang/tensorflow,gojira/tensorflow,jbedorf/tensorflow,asimshankar/tensorflow,benoitsteiner/tensorflow-xsmm,tensorflow/tensorflow-pywrap_saved_model,jhseu/tensorflow,kobejean/tensorflow,annarev/tensorflow,benoitsteiner/tensorflow-xsmm,caisq/tensorflow,paolodedios/tensorflow,jart/tensorflow,alsrgv/tensorflow,tensorflow/tensorflow-pywrap_saved_model,gautam1858/tensorflow,jbedorf/tensorflow,girving/tensorflow,ghchinoy/tensorflow,hehongliang/tensorflow,aselle/tensorflow,yongtang/tensorflow,ZhangXinNan/tensorflow,petewarden/tensorflow,dongjoon-hyun/tensorflow,sarvex/tensorflow,yongtang/tensorflow,renyi533/tensorflow,frreiss/tensorflow-fred,dendisuhubdy/tensorflow,sarvex/tensorflow,Intel-Corporation/tensorflow,frreiss/tensorflow-fred,annarev/tensorflow,hfp/tensorflow-xsmm,annarev/tensorflow,jhseu/tensorflow,brchiu/tensorflow,jart/tensorflow,jhseu/tensorflow,ppwwyyxx/tensorflow,tensorflow/tensorflow-pywrap_saved_model,dancingdan/tensorflow,girving/tensorflow,ppwwyyxx/tensorflow,nburn42/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,benoitsteiner/tensorflow-xsmm,jendap/tensorflow,jhseu/tensorflow,adit-chandra/tensorflow,aselle/tensorflow,tensorflow/tensorflow-pywrap_saved_model,petewarden/tensorflow,arborh/tensorflow,adit-chandra/tensorflow,alshedivat/tensorflow,dancingdan/tensorflow,cxxgtxy/tensorflow,dancingdan/tensorflow,seanli9jan/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,alsrgv/tensorflow,jalexvig/tensorflow,renyi533/tensorflow,gunan/tensorflow,jendap/tensorflow,aldian/tensorflow,sarvex/tensorflow,tensorflow/tensorflow,paolodedios/tensorflow,ZhangXinNan/tensorflow,AnishShah/tensorflow,ppwwyyxx/tensorflow,ZhangXinNan/tensorflow,xodus7/tensorflow,frreiss/tensorflow-fred,snnn/tensorflow,freedomtan/tensorflow,girving/tensorflow,cxxgtxy/tensorflow,ageron/tensorflow,caisq/tensorflow,nburn42/tensorflow,chemelnucfin/tensorflow,dendisuhubdy/tensorflow,ageron/tensorflow,meteorcloudy/tensorflow,alshedivat/tensorflow,freedomtan/tensorflow,aam-at/tensorflow,yanchen036/tensorflow,seanli9jan/tensorflow,davidzchen/tensorflow,benoitsteiner/tensorflow-xsmm,hfp/tensorflow-xsmm,seanli9jan/tensorflow,manipopopo/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-experimental_link_static_libraries_once,brchiu/tensorflow,alsrgv/tensorflow,freedomtan/tensorflow,aam-at/tensorflow,Intel-tensorflow/tensorflow,girving/tensorflow,frreiss/tensorflow-fred,meteorcloudy/tensorflow,apark263/tensorflow,davidzchen/tensorflow,AnishShah/tensorflow,cxxgtxy/tensorflow,arborh/tensorflow,annarev/tensorflow,benoitsteiner/tensorflow-xsmm,yanchen036/tensorflow,gunan/tensorflow,ZhangXinNan/tensorflow,meteorcloudy/tensorflow,alshedivat/tensorflow,hfp/tensorflow-xsmm,manipopopo/tensorflow,jhseu/tensorflow,cxxgtxy/tensorflow,meteorcloudy/tensorflow,tensorflow/tensorflow-pywrap_saved_model,girving/tensorflow,AnishShah/tensorflow,dongjoon-hyun/tensorflow,caisq/tensorflow,kobejean/tensorflow,ZhangXinNan/tensorflow,snnn/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,yongtang/tensorflow,alshedivat/tensorflow,benoitsteiner/tensorflow-xsmm,jbedorf/tensorflow,gautam1858/tensorflow,nburn42/tensorflow,gautam1858/tensorflow,Intel-Corporation/tensorflow,AnishShah/tensorflow,manipopopo/tensorflow,Bismarrck/tensorflow,jbedorf/tensorflow,dancingdan/tensorflow,jbedorf/tensorflow,seanli9jan/tensorflow,theflofly/tensorflow,gojira/tensorflow,girving/tensorflow,aldian/tensorflow,aam-at/tensorflow,seanli9jan/tensorflow,renyi533/tensorflow,asimshankar/tensorflow,karllessard/tensorflow,hfp/tensorflow-xsmm,dancingdan/tensorflow,paolodedios/tensorflow,Intel-tensorflow/tensorflow,frreiss/tensorflow-fred,alshedivat/tensorflow,theflofly/tensorflow,jalexvig/tensorflow,arborh/tensorflow,gojira/tensorflow,Intel-tensorflow/tensorflow,benoitsteiner/tensorflow-xsmm,seanli9jan/tensorflow,kevin-coder/tensorflow-fork,chemelnucfin/tensorflow,yanchen036/tensorflow,tensorflow/tensorflow,gautam1858/tensorflow,meteorcloudy/tensorflow,yanchen036/tensorflow,snnn/tensorflow,dendisuhubdy/tensorflow,davidzchen/tensorflow,manipopopo/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,aselle/tensorflow,yanchen036/tensorflow,gojira/tensorflow,theflofly/tensorflow,snnn/tensorflow,xzturn/tensorflow,gojira/tensorflow,apark263/tensorflow,snnn/tensorflow,lukeiwanski/tensorflow,aldian/tensorflow,xodus7/tensorflow,arborh/tensorflow,annarev/tensorflow,drpngx/tensorflow,aselle/tensorflow,manipopopo/tensorflow,sarvex/tensorflow,lukeiwanski/tensorflow,adit-chandra/tensorflow,jart/tensorflow,yongtang/tensorflow,apark263/tensorflow,jalexvig/tensorflow,freedomtan/tensorflow,kobejean/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,freedomtan/tensorflow,paolodedios/tensorflow,ppwwyyxx/tensorflow,annarev/tensorflow,hfp/tensorflow-xsmm,lukeiwanski/tensorflow,freedomtan/tensorflow,drpngx/tensorflow,Intel-Corporation/tensorflow,ZhangXinNan/tensorflow,gautam1858/tensorflow,adit-chandra/tensorflow,seanli9jan/tensorflow,petewarden/tensorflow,yongtang/tensorflow,ageron/tensorflow,karllessard/tensorflow,jart/tensorflow,karllessard/tensorflow,jendap/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow,ZhangXinNan/tensorflow,gautam1858/tensorflow,aam-at/tensorflow,girving/tensorflow,davidzchen/tensorflow,DavidNorman/tensorflow,ghchinoy/tensorflow,theflofly/tensorflow,drpngx/tensorflow,ageron/tensorflow,adit-chandra/tensorflow,meteorcloudy/tensorflow,Bismarrck/tensorflow,hehongliang/tensorflow,theflofly/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-pywrap_saved_model,gautam1858/tensorflow,manipopopo/tensorflow,dendisuhubdy/tensorflow,xzturn/tensorflow,freedomtan/tensorflow,ZhangXinNan/tensorflow,jhseu/tensorflow,jalexvig/tensorflow,lukeiwanski/tensorflow,kevin-coder/tensorflow-fork,jhseu/tensorflow,brchiu/tensorflow,benoitsteiner/tensorflow-xsmm,gunan/tensorflow,gunan/tensorflow,frreiss/tensorflow-fred,gojira/tensorflow,tensorflow/tensorflow-pywrap_saved_model,petewarden/tensorflow,Intel-tensorflow/tensorflow,davidzchen/tensorflow,brchiu/tensorflow,xzturn/tensorflow,caisq/tensorflow,frreiss/tensorflow-fred,asimshankar/tensorflow,renyi533/tensorflow,theflofly/tensorflow,yongtang/tensorflow,freedomtan/tensorflow,DavidNorman/tensorflow,davidzchen/tensorflow,hehongliang/tensorflow,arborh/tensorflow,snnn/tensorflow,kobejean/tensorflow,hehongliang/tensorflow,ppwwyyxx/tensorflow,xzturn/tensorflow,hfp/tensorflow-xsmm,kevin-coder/tensorflow-fork,ppwwyyxx/tensorflow,DavidNorman/tensorflow,renyi533/tensorflow,jart/tensorflow,karllessard/tensorflow,petewarden/tensorflow,arborh/tensorflow,alshedivat/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,snnn/tensorflow,alsrgv/tensorflow,jart/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,jalexvig/tensorflow,tensorflow/tensorflow,asimshankar/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow,jendap/tensorflow,hfp/tensorflow-xsmm,tensorflow/tensorflow-pywrap_saved_model,renyi533/tensorflow,davidzchen/tensorflow,davidzchen/tensorflow,frreiss/tensorflow-fred,gautam1858/tensorflow,arborh/tensorflow,tensorflow/tensorflow-pywrap_saved_model,gojira/tensorflow,apark263/tensorflow,xzturn/tensorflow,theflofly/tensorflow,jendap/tensorflow,ghchinoy/tensorflow,alsrgv/tensorflow,dongjoon-hyun/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gojira/tensorflow,cxxgtxy/tensorflow,aam-at/tensorflow,alsrgv/tensorflow,AnishShah/tensorflow,davidzchen/tensorflow,Intel-tensorflow/tensorflow,dongjoon-hyun/tensorflow,apark263/tensorflow,adit-chandra/tensorflow,aldian/tensorflow,tensorflow/tensorflow,manipopopo/tensorflow,dongjoon-hyun/tensorflow,brchiu/tensorflow,asimshankar/tensorflow,DavidNorman/tensorflow,yanchen036/tensorflow,Intel-Corporation/tensorflow,kobejean/tensorflow,renyi533/tensorflow,jendap/tensorflow,tensorflow/tensorflow,karllessard/tensorflow,alsrgv/tensorflow,kobejean/tensorflow,gautam1858/tensorflow,drpngx/tensorflow,chemelnucfin/tensorflow,karllessard/tensorflow,caisq/tensorflow,seanli9jan/tensorflow,aldian/tensorflow,brchiu/tensorflow,kevin-coder/tensorflow-fork,dancingdan/tensorflow,apark263/tensorflow,xodus7/tensorflow,theflofly/tensorflow,theflofly/tensorflow,nburn42/tensorflow,chemelnucfin/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,jbedorf/tensorflow,Intel-tensorflow/tensorflow,chemelnucfin/tensorflow,paolodedios/tensorflow,frreiss/tensorflow-fred,freedomtan/tensorflow,annarev/tensorflow,jendap/tensorflow,apark263/tensorflow,jalexvig/tensorflow,kevin-coder/tensorflow-fork,ppwwyyxx/tensorflow,dongjoon-hyun/tensorflow,benoitsteiner/tensorflow-xsmm,alshedivat/tensorflow,kevin-coder/tensorflow-fork,jalexvig/tensorflow,asimshankar/tensorflow,kevin-coder/tensorflow-fork,jendap/tensorflow,alshedivat/tensorflow,aldian/tensorflow,ageron/tensorflow,drpngx/tensorflow,brchiu/tensorflow,xodus7/tensorflow,dancingdan/tensorflow,ghchinoy/tensorflow,Bismarrck/tensorflow,gunan/tensorflow,caisq/tensorflow,nburn42/tensorflow,Intel-tensorflow/tensorflow,annarev/tensorflow,AnishShah/tensorflow,ppwwyyxx/tensorflow,petewarden/tensorflow,cxxgtxy/tensorflow,dancingdan/tensorflow,Bismarrck/tensorflow,davidzchen/tensorflow,kobejean/tensorflow,jart/tensorflow,adit-chandra/tensorflow,dendisuhubdy/tensorflow,tensorflow/tensorflow,Intel-tensorflow/tensorflow,aam-at/tensorflow,ageron/tensorflow,DavidNorman/tensorflow,karllessard/tensorflow,chemelnucfin/tensorflow,aselle/tensorflow,jalexvig/tensorflow,jhseu/tensorflow,hfp/tensorflow-xsmm,caisq/tensorflow,xodus7/tensorflow,frreiss/tensorflow-fred,annarev/tensorflow,drpngx/tensorflow,lukeiwanski/tensorflow,arborh/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,DavidNorman/tensorflow,cxxgtxy/tensorflow,dendisuhubdy/tensorflow,ghchinoy/tensorflow,ageron/tensorflow,ghchinoy/tensorflow,brchiu/tensorflow,chemelnucfin/tensorflow,renyi533/tensorflow,Intel-Corporation/tensorflow,girving/tensorflow,yanchen036/tensorflow,xodus7/tensorflow,ppwwyyxx/tensorflow,nburn42/tensorflow,brchiu/tensorflow,freedomtan/tensorflow,DavidNorman/tensorflow,meteorcloudy/tensorflow,drpngx/tensorflow,ghchinoy/tensorflow,drpngx/tensorflow,kevin-coder/tensorflow-fork,xodus7/tensorflow,jhseu/tensorflow,alsrgv/tensorflow,ppwwyyxx/tensorflow,ageron/tensorflow,annarev/tensorflow,chemelnucfin/tensorflow,gunan/tensorflow,apark263/tensorflow,lukeiwanski/tensorflow,Intel-Corporation/tensorflow,jhseu/tensorflow,kobejean/tensorflow,adit-chandra/tensorflow,AnishShah/tensorflow,caisq/tensorflow,nburn42/tensorflow,lukeiwanski/tensorflow,arborh/tensorflow,aam-at/tensorflow,DavidNorman/tensorflow,petewarden/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,asimshankar/tensorflow,kevin-coder/tensorflow-fork,girving/tensorflow,petewarden/tensorflow,gojira/tensorflow,benoitsteiner/tensorflow-xsmm,gojira/tensorflow,gautam1858/tensorflow,ppwwyyxx/tensorflow,paolodedios/tensorflow,jendap/tensorflow,jbedorf/tensorflow,manipopopo/tensorflow,gautam1858/tensorflow,karllessard/tensorflow,nburn42/tensorflow,DavidNorman/tensorflow,tensorflow/tensorflow,kobejean/tensorflow,arborh/tensorflow,AnishShah/tensorflow,ageron/tensorflow,ZhangXinNan/tensorflow,arborh/tensorflow,theflofly/tensorflow,drpngx/tensorflow,Bismarrck/tensorflow,ZhangXinNan/tensorflow,manipopopo/tensorflow,chemelnucfin/tensorflow,jalexvig/tensorflow,benoitsteiner/tensorflow-xsmm,dendisuhubdy/tensorflow,apark263/tensorflow,Bismarrck/tensorflow,Bismarrck/tensorflow